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NAVAIR 17-20MP-06

TECHNICAL MANUAL

INSTRUMENT CALIBRATION PROCEDURE

HYDRAULIC AND PNEUMATIC PRESSURE GAUGES

AND SWITCHES

DESTRUCTION NOTICE - FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY METHOD THAT WILL PREVENT DISCLOSURE OF CONTENTS OR “RECONSTRUCTION OF THE DOCUMENT.”

PUBLISHED BY DIRECTION OF COMMANDER NAVAL AIR SYSTEMS COMMAND

DISTRIBUTION STATEMENT C. DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND THEIR CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR OPERATIONAL PURPOSES ONLY. OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO MEASUREMENT SCIENCE DEPARTMENT, CORONA DIVISION, NAVAL SURFACE WARFARE CENTER, P.O. BOX 5000, CORONA, CA 92878-5000.

MP-

06

MP-06

1 AUGUST 2008

THIS PUBLICATION SUPERSEDES NAVAIR 17-20MP-06 DATED 1 MAY 2003

NAVAIR 17-20MP-06

A

LIST OF EFFECTIVE PAGES

The purpose of this list is to identify the pages in this document affected by any technical content changes made since the previous release of the document. NOTE: On a revised page, with the exception of the Title, the A, and the i pages, the technical changes are indicated by a vertical line in the outer margin of the page.

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“R” in this column indicates a revised page. **All pages not listed are blank pages.

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TABLE OF CONTENTS

Section Page

1 Introduction and Description ................................................................................................................... 1 2 Equipment Requirements......................................................................................................................... 1 3 Preliminary Operations ............................................................................................................................ 3 4 Calibration Process .................................................................................................................................. 4 4.1 Pneumatic Straight and Duplex Pressure Gauge Indication Tests........................................................ 5 4.2 Pneumatic Differential Pressure Gauge Indication Tests ..................................................................... 6 4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Tests ........................................................ 7 4.4 Hydraulic Differential Pressure Gauge Indication Tests...................................................................... 10 Navy Calibration Checklist...................................................................................................................... 13 Appendix A: Representative Test Instruments ....................................................................................... A-1

TABLES

Table Page

1 Calibration Description............................................................................................................................ 1 2 Equipment Requirements......................................................................................................................... 2

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1

SECTION 1

INTRODUCTION AND DESCRIPTION

1.1 This procedure describes the calibration of Pneumatic and Hydraulic Gauge Pressure, Differential Pressure and Duplex Pressure instruments within the range of 0 to 10,000 psig or psid and with a tolerance of ±0.5% (see Note, Section 4) or greater of fullscale. These instruments include Bourdon-tube straight and duplex dial-indicating pressure gauges, differential-pressure gauges, and pressure switches. Instruments that can be calibrated using this procedure include, but are not limited to, the models listed in Appendix A. The instrument being calibrated is referred to herein as the TI (Test Instrument).

1.2 All comments concerning this procedure should be directed to the Measurement Science Department, Corona Division, Naval Surface Warfare Center, P.O. Box 5000, Corona, CA 92878-5000.

1.3 This procedure includes tests of essential performance parameters only. Any malfunction noticed during calibration, whether specifically tested for or not, should be corrected.

Table 1. Calibration Description

TI Characteristics

Performance Specifications

Test Method

Pressure gauge indication Ranges: 0 to 10,000 psig 0 to 10,000 psid Tolerance: ±0.5% fs or greater

Comparison to a standard gauge, using the pressure calibration system to control the pressure.

Pressure switch actuation Same as above Pressure(s) at point of switch actuation are measured with a standard gauge for comparison to predicted values, using the pressure calibration system to control the pressure.

SECTION 2

EQUIPMENT REQUIREMENTS

NOTES

Minimum use specifications are the principal parameters required for performance of the calibration, and are included to assist in the selection of alternate equipment, which may be used at the discretion of the using laboratory. Satisfactory performance of alternate items shall be verified prior to use. All applicable equipment must bear evidence of current calibration.

The instruments utilized in this procedure were selected from those known to be available at Navy calibration facilities, and the listing by make or model number carries no implication of preference, recommendation, or approval for use by other agencies. It is recognized that equivalent equipment produced by other manufacturers may be capable of equally satisfactory performance in this procedure.

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Table 2. Equipment Requirements

Item Minimum Use Specifications

Calibration Equipment

2.1 Pneumatic pressure calibration system

Pneumatic pressure control unit, amplifier, fluid separators, and standard gauges

King Nutronics 3460 or 3461-1-1; or

Typical gauge ranges: 0 to 15 psig 0 to 30 psig 0 to 100 psig 0 to 200 psig 0 to 300 psig 0 to 500 psig 0 to 1,000 psig 0 to 3,000 psig 0 to 10,000 psig

Uncertainty: ±0.1% fs of each range

King Nutronics 3137 pressure calibration console (uses Heise gauges) with a 3194D pneumatic pressure amplifier

2.2 Hydraulic pressure calibration system

Hydraulic pressure control unit, amplifier, fluid separators, and standard gauges

King Nutronics 3712-1-1; or

Typical gauge ranges: 0 to 15 psig 0 to 60 psig 0 to 200 psig 0 to 200 psig 0 to 500 psig 0 to 1,000 psig 0 to 2,000 psig 0 to 5,000 psig 0 to 10,000 psig

Uncertainty: ±0.1% fs of each range

King Nutronics 3524-5-1 Pressure Gauge Calibration (Hydraulic) with Heise CMM type gages

2.3 Nitrogen (N2) source Nitrogen (N2), Military Specification MIL-P-MIL-PRF-27401D, Type 1, Grade A, 99.5% pure

King Nutronics 3666-30-1 or Local supply

2.4 Pressure regulator Inlet Pressure: 2,200 psig max, outlet pressure: 1000 psig min, outlet resolution: 50 psi

Standard Pneumatic Engineering Co. LC-G2-CGA580 or Local supply

2.5 Hoses and adapters As required Local supply

2.6 Continuity tester Used to determine point of switch actuation Simpson 260; 270-3 or 270-5

2.7 Ruler Used to measure the height difference between the TI and the fluid separator

Local supply

2.8 The effects of temperature on elastic element pressure gauges

NA The effect of temperature on the TI is not tested. If such tests are required/requested, refer to Metrology Engineering Report ER-13.

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SECTION 3

PRELIMINARY OPERATIONS

WARNING

ENSURE THAT THE HYDROSTATIC TEST DATE FOR THE TI INTERNAL OR EXTERNAL CYLINDERS HAS NOT EXPIRED AND WILL NOT EXPIRE WITHIN THE NEXT CALIBRATION INTERVAL. THE LAST TEST DATE IS STAMPED ON THE CYLINDERS AND THE RETEST DATE MAY BE ON A DECAL ON THE TI FRONT PANEL. THE CYLINDERS SHOULD BE RETESTED EVERY 5 YEARS.

NOTE

Ensure that the TI has been allowed to stabilize in the test environment for a minimum of 1 hour.

3.1 Ensure that the TI is clean and free from defects that would impair its operation.

3.2 If a checklist for the TI is not provided, proceed to the applicable subsection for the type of gauge or switch to be calibrated for determination of the calibration points. In some cases, special use requirements or dial graduation markings may necessitate some deviations from the values listed.

3.3 If applicable, connect the TI to an appropriate power source, turn the TI power switch on, and allow the TI to stabilize.

3.4 Ensure that the nitrogen (N2) source (item 2.3) is charged sufficiently with clean, dry nitrogen for the King Nutronics portable pressure calibrator.

3.5 Select the standard gauge having the lowest range that will cover the range of the TI.

3.6 Exercise the standard gauge for pressures above atmospheric pressure as described in steps 3.6.1 through 3.6.4.

NOTES

If the TI is used as a standard to calibrate other gauges, exercise the TI with the standard gauge unless they have different pressure ranges. The TI can also be exercised separately.

The control valves are closed (bubble tight) when a slight drag is evident. Slight further rotation will not damage the valve seat, but do not exert high torque when the valve handle approaches bottom.

3.6.1 Connect the standard gauge/TI, as applicable, to the hydraulic pressure pneumatic calibration system (item 2.1).

3.6.2 Adjust the pressure to obtain a fullscale indication on the gauge(s). Maintain this pressure for two minutes.

3.6.3 Decrease the pressure slowly until the gauge(s) indicate approximately zero.

3.6.4 Perform steps 3.6.2 and 3.6.3, two more times.

3.7 Ensure that the standard gauge indicates zero; if it does not, adjust the gauge zeroing control.

3.8 If the TI is used as a standard to calibrate other gauges, ensure that it indicates zero before proceeding. If necessary, zero the TI prior to calibration. The rezeroing will not affect the range span. If the TI has no zero adjustment, remove the pointer and place it on zero.

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NOTE

The re-zeroing will not affect the range span. If the TI does not have a zero adjustment, remove the pointer and place it on zero.

SECTION 4

CALIBRATION PROCESS

WARNINGS

DO NOT OVER PRESSURIZE EITHER THE STANDARD GAUGE OR THE TI. SERIOUS INJURY OR DAMAGE MAY RESULT.

THIS PROCEDURE INVOLVES PRESSURES THAT ARE HAZARDOUS TO PERSONNEL. USE ONLY APPROVED PRESSURE HOSES AND FITTINGS.

REQUIRED PERSONAL PROTECTIVE EQUIPMENT (PPE) SHALL BE WORN UNTIL ALL EQUIPMENT IS PROPERLY RETURNED TO STOWED CONDITION.

CAUTIONS

UNDER NO CIRCUMSTANCES SHALL ANY LIQUID BE ALLOWED TO ENTER THE CALIBRATION SYSTEM SUPPLY, MASTER GAUGE AND TEST CONNECTION PORTS. USE A LIQUID TRAP OR FLUID SEPARATOR WHEN CALIBRATING PRESSURE INSTRUMENTS.

WHEN USING THE 3712-1-1 PORTABLE PRESSURE CALIBRATOR, USE A RELIEF VALVE (VENT VALVE) INSTEAD OF USING THE TERMS “TEST PRESSURE CONTROL VALVE AND VENT CONTROL VALVE.” USE THE DISPLACEMENT VALVE TO CONTROL THE FINE ADJUSTMENT OF PRESSURE.

NOTES

Unless otherwise specified, verify the results of each test and take corrective action whenever the test requirement is not met, before proceeding.

Pressure instruments should be calibrated in accordance with the specifications under which there were procured, or in accordance with the user’s requirements, whichever is appropriate. If it is not known to which specification a given pressure or vacuum instrument was procured, it should be tested to the less restrictive specification.

Some pressure devices are not adjusted to indicate zero with no pressure applied. Some devices, such as differential pressure gauges, dial indicating pressure switches and gauges, may be adjusted to a nominal pressure (zero offset) to accommodate the system in which they are used. An example is a differential pressure gauge used to measure the high and low water level of a ship’s boiler system. The nominal pressure settings and other details for instruments used in these systems are available in the ship’s engineering drawings and in the system operation and instruction manual. This procedure is based on the pressure device indicating zero with no pressure applied. The devices mentioned above will have to be compensated for accordingly.

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NOTES (CONTINUED)

If the TI has a liquid-filled case, it is not necessary to remove the liquid when calibrating the gauge. However, if internal adjustments are to be made on the TI, the liquid must be removed when making the adjustments and then replaced. This liquid consists of 90% glycerin, 10% water, and a few drops of liquid detergent.

Generally, TIs are not calibrated at 100% fs pressure because a standard gauge of the same pressure range would be difficult to read or the pointer would peg at the stop if the true pressure exceeded its 100% fs graduation. However, a TI may be calibrated at 75% fs and 100% fs if the range of the standard gauge is greater and if calibration at the TI 70% fs and 90% fs points is not feasible. This includes TIs graduated in flow units.

4.1 PNEUMATIC STRAIGHT AND DUPLEX PRESSURE GAUGE INDICATION TESTS

4.1.1 If a checklist is not provided for the TI, select the calibration points as follows:

4.1.1.1 Select the values at 25%, 50%, 70%, and 90% fullscale. If the TI includes a switch, note the pressure actuation values.

4.1.1.1.1 If the TI is used as a standard to calibrate other gauges, select the values at 6 to 10 equally spaced points on the dial.

4.1.1.2 Record the values selected in step 4.1.1.1 in an increasing order for the increasing-pressure tests.

4.1.1.3 Record the values listed in the preceding step, except for the highest value, in a decreasing order for the decreasing-pressure tests.

4.1.2 Ensure that the standard pressure gauge and if applicable, the TI, have been exercised as described in steps 3.6.1 through 3.6.4.

4.1.3 Ensure that the standard gauge and if applicable, the TI, have been zeroed as described in steps 3.7 and 3.8.

4.1.4 Connect the TI to the Pneumatic Pressure Calibration System (2.1).

4.1.5 Perform a measurement, as follows, at each increasing pressure calibration point.

NOTE

The control valves are closed (bubble tight) when a slight drag is evident. Slight further rotation will not damage the valve seat, but do not exert high torque when the valve handle approaches bottom.

4.1.5.1 Ensure that the calibration system VENT CONTROL valve is closed.

4.1.5.2 For a TI that has a pressure-actuated switch, ensure that the switch is being monitored with a continuity tester (item 2.6).

4.1.5.3 Increase the pressure slowly and tap the TI lightly. When the TI indicates the calibration point or the TI switch actuates, close the TEST PRESSURE CONTROL valve.

4.1.5.4 Allow sufficient time for the pressure of the gas to stabilize then readjust the pressure if necessary. The setting must be approached in the direction of increasing pressure.

4.1.5.5 If applicable, tap the standard gauge lightly. Verify that the standard gauge indication is within the tolerance limits on the checklist.

4.1.6 Perform a measurement as follows at each decreasing-pressure calibration point.

4.1.6.1 For a TI that has a pressure-actuated switch, ensure that the switch is being monitored with a continuity tester.

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4.1.6.2 Decrease the pressure slowly by adjusting the system VENT CONTROL valve, and tap the TI lightly. When the TI indicates the calibration point or the TI switch actuates to the alternate position, close the VENT CONTROL valve.

4.1.6.3 Allow sufficient time for the pressure of the gas to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of decreasing pressure.

4.1.6.4 If applicable, tap the standard gauge lightly. Verify that the standard gauge indication is within the tolerance limits listed.

4.1.7 Open the VENT CONTROL valve to reduce the pressure in the system to zero.

4.1.8 For a TI that is a duplex gauge, perform steps 4.1.2 through 4.1.7 for the other portion of the gauge.

4.1.9 Unless other measurements are to be performed, disconnect and secure the equipment.

WARNING

ENSURE THAT BOTH THE TI AND PRESSURE CALIBRATION SYSTEM ARE VENTED BEFORE DISCONNECTING ANY HOSES OR ADAPTERS.

4.2 PNEUMATIC DIFFERENTIAL PRESSURE GAUGE INDICATION TESTS


4.2.1.1 For a TI that is a zero-center differential-pressure gauge, select three or four equally spaced calibration points on each side of zero.

4.2.1.2 For a TI that is the type that indicates the differential pressure with a zero to fullscale dial, select the values at 25%, 50%, 70%, and 90% of fullscale. If the TI includes a switch, note the pressure actuation values.

4.2.1.3 Record the values selected in either step 4.2.1.1 or 4.2.1.2 in an increasing order for the increasing pressure tests.

4.2.1.4 Record the values listed in the preceding step, except for the highest value, in decreasing order for the decreasing-pressure tests.

NOTE

The tolerance limits for a differential gauge are determined by the range span. If the TI has a range span of 0 to 100 psi with a tolerance of ±1% fs, the tolerance would be 100 psi x .01 = ±1 psi. If the TI is a zero center type with a range span of 50-0-50 psi, the total range is 50 + 50 or 100 psi. Therefore, the tolerance is 100 psi x 0.01 = ±1 psi.

4.2.2 Ensure that the standard gauge and if applicable, the TI, have been exercised as described in steps 3.6.1 through 3.6.4 and zeroed as described in steps 3.7 and 3.8.

4.2.3 If the TI has a static pressure or safe working pressure (SWP) as marked on the TI case that is greater than the TI fullscale indication, perform a static pressure test as follows; if not, skip to step 4.2.5.

4.2.3.1 Using a tee connector, connect each of the pressure ports of the TI to the pneumatic pressure calibration system pressure port (item 2.1).

NOTE

This test may require a different standard gauge from that previously used; if so, the standard gauge does not have to be exercised for this test.

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4.2.3.2 Ensure that the system VENT CONTROL valve is closed.

4.2.3.3 Increase the pressure slowly to the user’s system pressure requirement or the SWP as marked on the TI case, and verify that the TI indicates zero ± the TI tolerance.

4.2.3.4 Slowly open the system VENT CONTROL valve to reduce the pressure to a minimum.

4.2.4 Disconnect the TI and tee connector from the calibration system.

4.2.5 Connect the high pressure port to the calibration system, and allow the TI low pressure port to be vented.

4.2.6 Perform a measurement as follows at each increasing-pressure calibration point.



4.2.6.3 Increase the pressure slowly, and tap the TI lightly. When the TI indicates the calibration point or the TI switch actuates, close the TEST PRESSURE CONTROL valve.

4.2.6.4 Allow sufficient time for the pressure of the gas to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of increasing pressure.





4.2.7.3 Allow sufficient time for the pressure of the gas to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of decreasing pressure.


4.2.8 Open the system VENT CONTROL valve to reduce the pressure to a minimum.

4.2.9 If the TI is a zero-center differential-pressure gauge, perform the tests described in steps 4.2.6 through 4.2.8 for the other half of the TI scale by connecting the calibration system to the TI low pressure port and venting the high pressure port.

WARNING


4.3 HYDRAULIC STRAIGHT AND DUPLEX PRESSURE GAUGE INDICATION TESTS


4.3.1.1 Select the values at 25%, 50%, 70%, and 90% of fullscale.

4.3.1.2 Record the values selected in step 4.3.1.1 in an increasing order for the increasing-pressure tests.

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4.3.1.3 Record the values listed in the preceding step, except for the highest, in decreasing order for the decreasing-pressure tests.

4.3.2 Ensure that the standard gauge and if applicable the TI, have been exercised as described in steps 3.6.1 through 3.6.4 and zeroed as described in paragraphs 3.7 and 3.8.

4.3.3 If applicable, ensure that the fluid separator is filled with the appropriate fluid. If a fluid separator is not required, proceed to step 4.3.8.

CAUTION

ENSURE THAT THE PROPER FLUID SEPARATOR IS INSTALLED BETWEEN THE CALIBRATION SYSTEM AND THE TI.

NOTE

Use a designated fluid separator. Not all separators are color-coded. However, if applicable, the red fluid separator is to be used only with pure or distilled water, and blue separator is to be used only with salt water, and yellow separator is to be used only with oils, and the green separator is to be used only with silicones.

4.3.4 Fill the TI with the appropriate fluid, and interconnect the TI pressure port, the fluid separator, and the hydraulic pressure calibration system.

4.3.5 Determine if a fluid head correction is required, by measuring the difference in height (in inches) between the center of the TI pressure-sensing element and the center of the fluid separator.

4.3.6 Use a ruler (item 2.7), and determine the correction from the following table.

4.3.7 If the center of the fluid separator is lower than the center of the TI, the correction is to be subtracted from the standard gauge indication; if higher, it is to be added.

NOTE

If the fluid head correction is <0.1% of the pressure being measured, the correction need not be applied.

Fluid Head Correction (psi)

Fluid Separator Identification and Liquid Used

Color Red Blue Yellow Green Difference in Height (inches)

Liquid Distilled Water

Salt Water Oil Silicones

1 0.036 0.037 0.029 0.033 2 0.072 0.074 0.058 0.066 3 0.108 0.111 0.087 0.099 4 0.144 0.148 0.116 0.132 5 0.180 0.185 0.145 0.165 6 0.216 0.222 0.174 0.198 7 0.252 0.259 0.203 0.231 8 0.288 0.296 0.232 0.264 9 0.324 0.333 0.261 0.297 10 0.360 0.370 0.290 0.330

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NOTES

For heights >10 inches, add the value for the integral number of tens of inches to the value for the remaining number of inches.

For example: If the height is 14 inches and the fluid is oil, the correction is:

10 inches = 0.290 psi 4 inches = 0.116 psi Total correction = 0.406 psi

4.3.8 Perform a measurement as follows at each increasing-pressure calibration point:


4.3.8.2 If the TI has a pressure-actuated switch, it should be monitored with a continuity tester.

4.3.8.3 Increase the pressure slowly, and tap the TI lightly. When the TI indicates the calibration point or the switch actuates, close the TEST PRESSURE CONTROL valve.

4.3.8.4 Allow sufficient time for the pressure to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of increasing pressure.

4.3.8.5 If applicable, tap the standard gauge lightly, and note the standard gauge indication.

4.3.8.6 Apply the fluid head correction as determined in step 4.3.7 to the value noted in the preceding step, if required, and verify that the value determined is within the tolerance limits listed.


4.3.9.1 For a TI that has a pressure-actuated switch, ensure that the switch is monitored by a continuity tester.


4.3.9.3 Allow sufficient time for the pressure to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of decreasing pressure.


4.3.9.5 Apply the fluid head correction as determined in step 4.3.7 to the value noted in the preceding step, if required, and verify that the value determined is within the tolerance limits for the TI.

4.3.10 Open the VENT CONTROL valve to reduce the pressure in the system to zero.

4.3.11 For a TI that is a duplex gauge, perform steps 4.3.2 through 4.3.10 for the other portion of the gauge.

4.3.12 Unless other measurements are to be performed, disconnect and secure the equipment. Drain the hydraulic fluid, and clean the hydraulic side of the pressure system, if necessary.

WARNING


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4.4 HYDRAULIC DIFFERENTIAL PRESSURE GAUGE INDICATION TESTS

NOTE

Differential pressure gauges can be used and calibrated either pneumatically or hydraulically. If a differential gauge is used with a liquid, and is to be calibrated pneumatically, it must be drained and dried first to prevent contamination from entering the calibration system. Calibrate Differential Pressure gauges pneumatically as instructed in Section 4.2.

NOTE

See note J of appendix A if the D/P gauge is an ITT Barton.


4.4.1.1 For a TI that has a zero-center differential pressure gauge, select three or four equally-spaced calibration points on each side of zero.

4.4.1.2 For a TI that is the type that indicates the differential pressure between two independent sources, select the values at 25%, 50%, 70%, and 90% of fullscale. If the TI includes a switch, note the pressure actuation values.

4.4.1.3 Record the values selected in either step 4.4.1.1 or 4.4.1.2 in an increasing order for the increasing-pressure tests.

4.4.1.4 Record the values listed in the preceding step, except for the highest value, in decreasing order for the decreasing-pressure tests.

NOTE

The tolerance limits for a differential gauge are determined by the range span. If the TI has a range span of 0 to 100 psi with a tolerance of ±1% fs, the tolerance limits would be 100 psi x 0.01 = ±1 psi. For a TI that is a zero-center type and has a range span of 50-0-50 psi and a tolerance of 1%, the total range span is 50 + 50 or 100 psi. Therefore, the tolerance limits would be 100 psi x 0.01 = ±1 psi.

4.4.2 Ensure that the standard gauge and if applicable, the TI, have been exercised as described in steps 3.6.1 through 3.6.4 and zeroed as described in steps 3.7 and 3.8.

4.4.3 If applicable, ensure that the fluid separator is filled with the appropriate fluid. If a fluid separator is not used, proceed to step 4.4.5.

CAUTION

ENSURE THAT THE PROPER FLUID SEPARATOR IS INSTALLED BETWEEN THE CALIBRATION SYSTEM AND THE TI.

NOTE

Use the designated fluid separator. Not all separators are color-coded. However, if applicable, the red fluid separator is to be used only with pure or distilled water, the blue separator is to be used only with salt water, the yellow separator is to be used only with oils, and the green separator is to be used only with silicones.

4.4.4 If the TI has a static pressure or safe working pressure (SWP) as noted on the TI case that is greater than the TI fullscale indication, perform a static pressure test as follows; if not, skip to step 4.4.5.

4.4.4.1 Using a tee connector, connect each of the pressure ports of the TI to the fluid separator output port.

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NOTE

This test may require a different standard gauge from that previously used; if so, the standard gauge does not have to be exercised for this test.

4.4.4.2 Ensure that the system VENT CONTROL valve is closed.

4.4.4.3 Increase the pressure slowly to the user’s system pressure required or the SWP as marked on the TI case, and verify that the TI indicates zero ± (TI tolerance plus 1% of the range span).

4.4.4.4 At SWP, calibration tolerance may be the same or greater depending on the gauge design. Available engineering drawings should be checked to ensure you are using the proper tolerance. Review the 2nd note at the beginning of Section 4.

4.4.4.5 Slowly open the system VENT CONTROL valve to reduce the pressure to minimum.

4.4.5 Disconnect the tee connector from the pressure system, taking care to minimize the loss of any hydraulic fluid.

4.4.6 Interconnect the TI high pressure port, the fluid separator, and the calibration system. Allow the TI low pressure port to be vented.

4.4.7 Determine if a fluid head correction is required by measuring the difference in height (in inches) between the center of the TI and the center of the fluid separator using a ruler (item 2.7), and determine the correction from the table following step 4.3.7. If the center of the fluid separator is lower than the center of the TI, the correction is to be subtracted from the standard gauge indication; if higher, it is to be added.

NOTE

If the fluid head correction is <0.1% of the pressure being measured, the correction need not be applied.

4.4.8 Perform a measurement as follows at each increasing-pressure calibration point:



4.4.8.3 Increase the pressure slowly, and tap the TI lightly. When the TI indicates the calibration point or the TI switch actuates, close the TEST PRESSURE CONTROL valve.

4.4.8.4 Allow sufficient time for the pressure to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of increasing pressure.

4.4.8.5 If applicable, tap the standard gauge lightly, and note the standard gauge indication. Apply the fluid head correction as determined in step 4.4.7 to the value noted in the preceding step, if required, and verify that the value determined is within the tolerance limits listed.


4.4.9.1 If the TI has a pressure-actuated switch, ensure that the switch is being monitored by a continuity tester.

4.4.9.2 Decrease the pressure slowly by adjusting the system VENT CONTROL valve, and tap the TI lightly. When the TI exactly indicates the calibration point or the TI switch actuates, close the VENT CONTROL valve. Allow sufficient time for the pressure to stabilize, and then readjust the pressure if necessary. The setting must be approached in the direction of decreasing pressure.


4.4.9.4 Apply the fluid head correction as determined in step 4.4.7 to the value noted in the preceding step, if required, and verify that the value determined is within the tolerance limits listed.

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4.4.10 Open the system VENT CONTROL valve to reduce the pressure in the system to zero.

4.4.11 If the TI is a zero-center differential-pressure gauge, perform the tests described in steps 4.4.8 through 4.4.10 for the other half of the TI scale by connecting the fluid separator to the TI low pressure port and venting the high pressure port.

Unless other measurements are to be performed, disconnect and secure the equipment. Drain the hydraulic fluid, and clean the hydraulic side of the pressure system, as necessary.

WARNING


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(14 blank) 13

CALIBRATION CHECKLIST TEST INST(S) Grumman Aerospace Corp. A51S31960-1 Adapter Set

PROC. NO. NA 17-20MP-06 MFR MODEL SER. NO.

PROCEDURE MEASURED VALUES OUT

STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES

NO TOL

(1) (2) (3) (4) (5) (6) (7)

3.1 TI inspection -- ck ( ) NA

3.6 Exercise standard -- ck ( ) NA

3.7 Zero standard -- ck ( ) NA

4.1 Pneumatic Straight and Duplex Pressure Gauge Indication Tests

NOTE

Disconnect TI 0-100 psig gauge from cross. Drain the TI of any liquid.

Connect TI gauge to pressure calibrator TEST CONNECTION port, using

a liquid trap as necessary. Install a 0-100 psig standard gauge on calibrator

MASTER GAUGE port.

4.1.5 Increasing pressure test

(psig) (psig) (psig)

4.1.5.5 TI indication 25 22 to 28

” ” 50 48 to 52

” ” 70 68 to 72

” ” 90 87 to 93

4.1.6 Decreasing pressure test



” ” 50 48 to 52

” ” 25 22 to 28

NOTES

Reduce pressure to zero. Disconnect TI gauge from calibrator and reinstall

gauge on TI cross.

The TI relief valve does not require calibration.

Page 1 of 1

NAVAIR 17-20MP-06

(16 blank) 15

CALIBRATION CHECKLIST TEST INST(S) Marsh H5254 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)





4.1.5 Increasing pressure test (psig) (psig) (psig)


” ” 100 98 to 102

” ” 140 138 to 142

” ” 180 178 to 182

4.1.6 Decreasing pressure test (psig) (psig) (psig)

4.1.6.4 TI indication 140 138 to 142

” ” 100 98 to 102

” ” 50 48 to 52

Page 1 of 1

NAVAIR 17-20MP-06

(18 blank) 17

CALIBRATION CHECKLIST TEST INST(S) Marsh J0042 and J1442 Pressure Gauges




NO TOL

(1) (2) (3) (4) (5) (6) (7)






4.1.5.5 TI indication 8.0 7.4 to 8.6

” ” 15.0 14.4 to 15.6

” ” 21.0 20.4 to 21.6

” ” 27.0 26.1 to 27.9


4.1.6.4 TI indication 21.0 20.4 to 21.6

” ” 15.0 14.4 to 15.6

” ” 8.0 7.4 to 8.6

Page 1 of 1

NAVAIR 17-20MP-06

(20 blank) 19

CALIBRATION CHECKLIST TEST INST(S) Marsh J0046 and J2046 Pressure Gauges




NO TOL

(1) (2) (3) (4) (5) (6) (7)






4.1.5.5 TI indication 15.0 13.8 to 16.2

” ” 30.0 28.8 to 31.2

” ” 42.0 40.8 to 43.2

” ” 54.0 52.2 to 55.8


4.1.6.4 TI indication 42.0 40.8 to 43.2

” ” 30.0 28.8 to 31.2

” ” 15.0 13.8 to 16.2

Page 1 of 1

NAVAIR 17-20MP-06

(22 blank) 21

CALIBRATION CHECKLIST TEST INST(S) Marsh J1452 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)






4.1.5.5 TI indication 40.0 36.8 to 43.2

” ” 80.0 76.8 to 83.2

” ” 110.0 106.8 to 113.2

” ” 150.0 145.2 to 154.8


4.1.6.4 TI indication 110.0 106.8 to 113.2

” ” 80.0 76.8 to 83.2

” ” 40.0 36.8 to 43.2

Page 1 of 1

NAVAIR 17-20MP-06

23

CALIBRATION CHECKLIST TEST INST(S) General Electric 1C3569G3 Nozzle Hydraulic Actuator Unit Assembly




NO TOL

(1) (2) (3) (4) (5) (6) (7)




4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Tests

NOTE

Close TI needle valves. Connect pressure calibrator to TI HEAD END

SUPPLY-RETURN connector using appropriate fluid separator. Fill TI

hydraulic system and fluid side of fluid separator with hydraulic fluid as

required. Adjust calibrator controls to obtain pressure indications on

PRESSURE HEAD END gauge pointer.


4.3.8.6 TI PRESSURE HEAD END

” gauge indication 100 82 to 118

” ” 200 188 to 212

” ” 280 268 to 292

” ” 360 348 to 372


TI PRESSURE HEAD END

4.3.9.5 gauge indication 280 268 to 292

” ” 200 188 to 212

” ” 100 82 to 118

NOTE

Reduce system pressure to zero. Disconnect pressure calibrator from TI

HEAD END SUPPLY-RETURN connector and reconnect to TI ROD END

SUPPLY-RETURN connector. Refill TI hydraulic system with hydraulic

fluid as required. Adjust calibrator controls to obtain pressure indications

on PRESSURE ROD END gauge pointer.

Page 1 of 2

NAVAIR 17-20MP-06

24

CALIBRATION CHECKLIST TEST INST(S) General Electric 1C3569G3 Nozzle Hydraulic Actuator Unit Assembly




NO TOL

(1) (2) (3) (4) (5) (6) (7)


4.3.8.6 TI PRESSURE ROD END


” ” 200 188 to 212

” ” 280 268 to 292

” ” 360 348 to 372


4.3.9.5 TI PRESSURE ROD END


” ” 200 188 to 212

” ” 100 82 to 118

Page 2 of 2

NAVAIR 17-20MP-06

(26 blank) 25

CALIBRATION CHECKLIST TEST INST(S) Ashcroft 1009A Pressure Gauge (0-60 psi)




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 15.0 14.4 to 15.6

” ” 30.0 29.4 to 30.6

” ” 42.0 41.4 to 42.6

” ” 54.0 53.4 to 54.6


4.1.6.4 TI indication 42.0 41.4 to 42.6

” ” 30.0 29.4 to 30.6

” ” 15.0 14.4 to 15.6

Page 1 of 1

NAVAIR 17-20MP-06

(28 blank) 27

CALIBRATION CHECKLIST TEST INST(S) Ashcroft 1009A Pressure Gauge (0-200 psi)




NO TOL

(1) (2) (3) (4) (5) (6) (7)








” ” 100 98 to 102

” ” 140 138 to 142

” ” 180 178 to 182


4.1.6.4 TI indication 140 130 to 142

” ” 100 98 to 102

” ” 50 48 to 52

Page 1 of 1

NAVAIR 17-20MP-06

(30 blank) 29

CALIBRATION CHECKLIST TEST INST(S) Marsh 100-3S Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 1250 1225 to 1275

” ” 2500 2475 to 2525

” ” 3500 3475 to 3525

” ” 4500 4475 to 4525



4.1.6.4 TI indication 3500 3475 to 3525

” ” 2500 2475 to 2525

” ” 1250 1225 to 1275

Page 1 of 1

NAVAIR 17-20MP-06

(32 blank) 31

CALIBRATION CHECKLIST TEST INST(S) Ashcroft 1245B Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 250 240 to 260

” ” 500 490 to 510

” ” 700 690 to 710

” ” 900 890 to 910



4.1.6.4 TI indication 700 690 to 710

” ” 500 490 to 510

” ” 250 240 to 260

Page 1 of 1

NAVAIR 17-20MP-06

(34 blank) 33

CALIBRATION CHECKLIST TEST INST(S) NAVORD DWG. 1623904 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication* 1000 960 to 1040

” ” 1400 1390 to 1410

” ” 1500 1490 to 1510

” ” 2000 1960 to 2040

” ” 3000 2960 to 3040

” ” 4000 3960 to 4040



4.1.6.4 TI indication* 3000 2960 to 3040

” ” 2000 1960 to 2040

” ” 1500 1490 to 1510

” ” 1400 1390 to 1410

” ” 1000 960 to 1040

*Use the 3000 psi standard gauge up to 3000 psig.

Page 1 of 1

NAVAIR 17-20MP-06

(36 blank) 35

CALIBRATION CHECKLIST TEST INST(S) NAVORD DWG. 1778990 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 1250 1200 to 1300

” ” 2500 2450 to 2550

” ” 3500 3450 to 3550

” ” 4500 4450 to 4550



4.1.6.4 TI indication 3500 3450 to 3550

” ” 2500 2450 to 2550

” ” 1250 1200 to 1300

Page 1 of 1

NAVAIR 17-20MP-06

(38 blank) 37

CALIBRATION CHECKLIST TEST INST(S) B. F. Goodrich Aerospace and Defense Products 179-249 Tire Inflation Valve Test Fixture or U.S. Gage 5009 Pressure Gauge PROC. NO. NA 17-20MP-06 MFR MODEL SER. NO.



NO TOL

(1) (2) (3) (4) (5) (6) (7)








” ” 540 530 to 550

” ” 740 730 to 750

” ” 900 885 to 915



4.1.6.4 TI indication 740 730 to 750

” ” 540 530 to 550

” ” 100 85 to 115

Page 1 of 1

NAVAIR 17-20MP-06

(40 blank) 39

CALIBRATION CHECKLIST TEST INST(S) ITT Barton 226 Differential Pressure Gauge (See note j of Appendix A)




NO TOL

(1) (2) (3) (4) (5) (6) (7)




4.2 or Pneumatic or Hydraulic Differential Pressure Gauge Indication Tests

4.4 (SWP) (psig) (psig) (psig)

4.2.3.3 or Static test * 0 -2 to +2

4.4.4.3

4.2.6 or Increasing pressure test

4.4.8 (psig) (psig) (psig)*

4.2.6.5 or TI indication 25 24 to 26

4.4.8.5

4.2.6.5 or ” 50 49 to 51

4.4.8.5

4.2.6.5 or ” 70 69 to 71

4.4.8.5

4.2.6.5 or ” 90 89 to 91

4.4.8.5

4.2.7 or Decreasing pressure test

4.4.9 (psig) (psig) (psig)

4.2.7.4 or TI indication 70 69 to 71

4.4.9.4

4.2.7.4 or ” 50 49 to 51

4.4.9.4

4.2.7.4 or ” 25 24 to 26

4.4.9.4

*See 3rd note (zero offset) at start of Section 4

Page 1 of 1

NAVAIR 17-20MP-06

(42 blank) 41

CALIBRATION CHECKLIST TEST INST (S) ITT Barton 316C Differential Pressure Indicator (0-160 psid) or SSN 774 Class Submarine Potable Water

Differential Pressure Indicator PW-911-DP-001, PW-912-DP-002 (See note j of Appendix A) PROC. NO. NA 17-20MP- 06 MFR MODEL SER. NO.



NO. TOL

(1) (2) (3) (4) (5) (6) (7)

3.1 TI inspection -- ck( ) NA 3.6 Exercise standard -- ck( ) NA 3.7 Zero standard -- ck( ) NA 4.2 or Pneumatic or Hydraulic Differential Pressure Gage Indication Tests 4.4 (SWP) (psig) (psig) (psig) 4.2.3.3 or Static test * 0 -2 to +2 4.4.4.3 4.2.6 or Increasing pressure test 4.4.8 (psig) (psig) (psig) 4.2.6.5 or TI indication 40 38 to 42

4.4.8.5 4.2.6.5 or ” 80 78 to 82 4.4.8.5 4.2.6.5 or ” 112 110 to 114 4.4.8.5 4.2.6.5 or ” 144 142 to 146 4.4.8.5 4.2.7 or Decreasing pressure test 4.4.9 (psig) (psig) (psig) 4.2.7.4 or TI indication 112 110 to 114 4.4.9.4 4.2.7.4 or ” 80 78 to 82 4.4.9.4 4.2.7.4 or ” 40 38 to 42 4.4.9.4 * See 3rd Note (zero offset) at start of Section 4

Page 1 of 1

NAVAIR 17-20MP-06

(44 blank) 43

CALIBRATION CHECKLIST TEST INST(S) Lockheed 2482217 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 200 192 to 208

” ” 400 392 to 408

” ” 600 592 to 608

” ” 800 792 to 808



4.1.6.4 TI indication 600 592 to 608

” ” 400 392 to 408

” ” 200 192 to 208

Page 1 of 1

NAVAIR 17-20MP-06

(46 blank) 45

CALIBRATION CHECKLIST TEST INST(S) Marsh Instrument Co. 2814838 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)




4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Test (3000 psig)

4.3.8 Increasing pressure (psig) (psig) (psig)

4.3.8.6 TI gauge indication 700 640 to 760

” ” 1500 1440 to 1560

” ” 2100 2040 to 2160

” ” 2700 2640 to 2760

4.3.9 Decreasing pressure (psig) (psig) (psig)


” ” 1500 1440 to 1560

” ” 700 640 to 760

Page 1 of 1

NAVAIR 17-20MP-06

(48 blank) 47

CALIBRATION CHECKLIST TEST INST(S) Westinghouse 3003005 Annular Space Test Fixture or 3284065 Launch Tube Leak Test Kit




NO TOL

(1) (2) (3) (4) (5) (6) (7)





NOTE

Connect standard gauge to output of regulator. Adjust input pressure to

TI regulator for approximately 25 psig. Adjust TI regulator to each

calibration value listed.

4.1.5 Regulator Setting (psig) (psig) (psig)

4.1.5.5 ” 3.25 3.00 to 3.50

Page 1 of 1

NAVAIR 17-20MP-06

49

CALIBRATION CHECKLIST TEST INST(S) Westinghouse 3003809 Pressure Switch Calibration Fixture with Westinghouse

3227935-1, 3227935-2, and 3227935-3 Pressure Gauges PROC. NO. NA 17-20MP-06 MFR MODEL SER. NO.



NO TOL

(1) (2) (3) (4) (5) (6) (7)

CAUTION

AVOID POSSIBILITY OF TI PUMP RESERVOIR RUPTURE BY DISCONNECTING THE TI HAND PUMP

FROM THE UNIT BEFORE CONNECTING THE TI TO THE FLUID SEPARATOR AND PRESSURE

CALIBRATOR FOR THE TI GAUGE CALIBRATION.




4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Test (160 psig gauge)


4.3.8.6 TI gauge indication 40.0 39.2 to 40.8

” ” 80.0 79.2 to 80.8

” ” 110.0 109.2 to 110.8

” ” 140.0 139.2 to 140.8



” ” 80.0 79.2 to 80.8

” ” 40.0 39.2 to 40.8




4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Tests (2000 psi gauge)



” ” 1000 990 to 1010

” ” 1400 1390 to 1410

” ” 1800 1790 to 1810

Page 1 of 2

NAVAIR 17-20MP-06

50

CALIBRATION CHECKLIST TEST INST(S) Westinghouse 3003809 Pressure Switch Calibration Fixture with Westinghouse

3227935-1, 3227935-2, and 3227935-3 Pressure Gauges PROC. NO. NA 17-20MP-06 MFR MODEL SER. NO.



NO TOL

(1) (2) (3) (4) (5) (6) (7)


4.3.9.5 ” 1400 1390 to 1410

” ” 1000 990 to 1010

” ” 500 490 to 510




4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Tests (5000 psig gauge)



” ” 2500 2475 to 2525

” ” 3500 3475 to 3525

” ” 4500 4475 to 4525



” ” 2500 2475 to 2525

” ” 1250 1225 to 1275

NOTE

Reconnect TI hand pump to the TI unit.

Page 2 of 2

NAVAIR 17-20MP-06

(52 blank) 51

CALIBRATION CHECKLIST TEST INST(S) Westinghouse 3283665 Leak Test Kit




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 5.0 4.4 to 5.6

” ” 10.0 9.4 to 10.6

” ” 15.0 14.4 to 15.6

” ” 30.0 29.4 to 30.6


4.1.6.4 TI indication 15.0 14.4 to 15.6

” ” 10.0 9.4 to 10.6

” ” 5.0 4.4 to 5.6

NOTE

Only the gauge on this test set has to be calibrated.

Page 1 of 1

NAVAIR 17-20MP-06

(54 blank) 53

CALIBRATION CHECKLIST TEST INST(S) Scovill (Schrader) 3715 Pressure Gauge




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI indication 0.50 0.25 to 0.75

” ” 1.00 0.75 to 1.25

” ” 2.50 2.25 to 2.75

” ” 3.00 2.75 to 3.25

” ” 4.50 4.25 to 4.75

” ” 5.00 4.75 to 5.25

NOTE

No decreasing pressure test is required.

Page 1 of 1

NAVAIR 17-20MP-06

(56 blank) 55

CALIBRATION CHECKLIST TEST INST(S) Taylor 44S369 or 153S18 Pressure Calibrator




NO TOL

(1) (2) (3) (4) (5) (6) (7)





NOTE

Connect 0 to 15 psi gauge to TI. Squeeze bulb to obtain indications.


TI indication (psig) (psig) (psig)

4.1.5.5 40 inches H2O 1.44 1.38 to 1.50

” 80 ” 2.89 2.83 to 2.95

” 112 ” 4.04 3.98 to 4.10

” 144 ” 5.19 5.13 to 5.25


4.1.6.4 112 inches H2O 4.04 3.98 to 4.10

” 80 ” 2.89 2.83 to 2.95

” 40 ” 1.44 1.38 to 1.50

Page 1 of 1

NAVAIR 17-20MP-06

(58 blank) 57

CALIBRATION CHECKLIST TEST INST(S) Taylor 44S390 Pressure Calibrator




NO TOL

(1) (2) (3) (4) (5) (6) (7)





NOTE

Connect 0 to 30 psi gauge to TI. Squeeze bulb to obtain indications.




” ” 9.00 8.82 to 9.18

” ” 13.00 12.82 to 13.18

” ” 16.00 15.82 to 16.18



” ” 9.00 8.82 to 9.18

” ” 4.00 3.82 to 4.18

Page 1 of 1

NAVAIR 17-20MP-06

(60 blank) 59

CALIBRATION CHECKLIST TEST INST(S) General Electric Co. 64A128J1 (Model NFT-2) Inlet Guide Vane Tester




NO TOL

(1) (2) (3) (4) (5) (6) (7)




4.1 Hydraulic Straight and Duplex Pressure Gauge Indication Tests

NOTE

Set the TI selector valve to the EXTEND position. Fill the TI reservoir and appropriate fluid

separator with MIL-L-7808 hydraulic oil. Interconnect the TI EXTEND pressure port, the

fluid separator, and the calibration system. Cap the TI RETRACT pressure port. Adjust

the calibrator controls to obtain the required pressure indications on the TI Pressure Gauge.

NOTE: TI Pressure Gauge is only calibrated to 50 psig.


4.3.8.6 TI Pressure Gauge ind. 10 9 to 11

” ” 20 19 to 21

” ” 30 29 to 31

” ” 40 39 to 41

” ” 50 49 to 51


4.3.9.5 TI Pressure Gauge ind. 40 39 to 41

” ” 30 29 to 31

” ” 20 19 to 21

” ” 10 9 to 11


4.3.8.6 TI Relief Valve ind. 55 52 to 58

NOTE

Once the TI Relief Valve actuates, verify that the leak rate does not exceed 1 psi per minute. Reduce

system pressure to zero, then drain the TI reservoir and hoses of all hydraulic oil. Prepare TI for

storage and/or shipment.

Page 1 of 1

NAVAIR 17-20MP-06

(62 blank) 61

CALIBRATION CHECKLIST TEST INST(S) Sigma-Netics 703613 Pressure Switch




NO TOL

(1) (2) (3) (4) (5) (6) (7)







4.1.5.5 TI actuation point 10* 10 max



4.1.6.4 TI actuation point 5 4 to 6

*The switch must actuate before 10 psig is applied. The decreasing pressure

test is the important function of this switch.

Page 1 of 1

NAVAIR 17-20MP-06

63

CALIBRATION CHECKLIST TEST INST(S) Data Electronic Corp. 718 Hydraulic Check and Fill Stand




NO TOL

(1) (2) (3) (4) (5) (6) (7)





NOTE

Disconnect TI 0-160 psig air gauge from Check and Fill Stand and install

gauge on the pressure calibrator TEST CONNECTION port for calibration.



4.1.5.5 TI air gauge indication 40.0 36.8 to 43.2

” ” 80.0 76.8 to 83.2

” ” 110.0 106.8 to 113.2

” ” 150.0 146.8 to 153.2



4.1.6.4 TI air gauge indication 110.0 106.8 to 113.2

” ” 80.0 76.8 to 83.2

” ” 40.0 36.8 to 43.2




4.3 Hydraulic Straight and Duplex Pressure Gauge Indication Test

NOTE

Disconnect TI 0-5000 psig hydraulic gauge from Check and Fill Stand and

connect gauge to fluid side of fluid separator. Fill with hydraulic fluid as

as required. Connect pneumatic side of fluid separator to pressure

calibrator TEST CONNECTION port for calibration.

Page 1 of 2

NAVAIR 17-20MP-06

64

CALIBRATION CHECKLIST TEST INST(S) Data Electronic Corp. 718 Hydraulic Check and Fill Stand




NO TOL

(1) (2) (3) (4) (5) (6) (7)



4.3.8.6 TI hydraulic gauge indication 1250 1200 to 1300

” ” 2500 2450 to 2550

” ” 3500 3450 to 3550

” ” 4500 4450 to 4550


4.3.9.5 TI hydraulic gauge indication 3500 3450 to 3550

” ” 2500 2450 to 2550

” ” 1250 1200 to 1300

Page 2 of 2

NAVAIR 17-20MP-06

(66 blank) 65

CALIBRATION CHECKLIST TEST INST(S) Products Support, Inc. 960048 or SK-2558 Breakaway Force Check Unit




NO TOL

(1) (2) (3) (4) (5) (6) (7)








” ” 500 450 to 550

” ” 700 650 to 750

” ” 900 850 to 950



” ” 500 450 to 550

” ” 250 200 to 250

NOTE

Only the gauge on this unit has to be calibrated.

Page 1 of 1

NAVAIR 17-20MP-06

67

CALIBRATION CHECKLIST TEST INST(S) Diver Air Supply Header Pressure Gage, Pressure Gage (0 to 5000 psig), SSN 774 Class Submarine




NO TOL

(1) (2) (3) (4) (5) (6) (7)




4.1 Increasing and Decreasing Pressure Indication Tests




” ” 2000 1975 to 2025

” ” 3000 2975 to 3025

” ” 4000 3975 to 5025

” ” 5000



” ” 3000 2975 to 3025

” ” 2000 1975 to 2025

” ” 1000 975 to 1025

Page 1 of 1

NAVAIR 17-20MP-06

A-1

APPENDIX A

REPRESENTATIVE TEST INSTRUMENTS

Test instruments that may be calibrated using this procedure include, but are not limited to, the following:

Model Manufacturer Tolerance Nomenclature

AA Crosby-Ashton ±1% fs Pressure Gauge

AA-1 Weksler ±0.5% fs ”

AKS 9044 Barber-Coleman ±2% fs (g) Pressure-Temperature Gauge

A51S31960-1 Grumman Aerospace ±2% fs (b)* Adapter Set (gauge only)

BA-1 Weksler Industries, Inc. ±1% fs Pressure Gauge (gauge only to 10,000 psi)

CC1-300A Del Mar Avionics ±0.5% fs Remote Control Console (Load Gauge only)

Diver Air Supply Header Pressure Gage

SSN 774 Class Submarine ±0.5% fs Pressure Gage (0 to 5000 psig)

FD45654-501 Lockheed ±2% fs (b) Flushing Kit (gauge only)

FIG 105 Duro ±1% fs Pressure Gauge

FIG 107 Duro ±1% fs ”

FIG 22 Marshalltown ±2% fs (a) ” Hydraulic Gauge

FIG 58K ” ±2% fs Pressure Gauge

FIG 89 ” ±0.5% fs Receiver Gauge Assembly (gauge only)

GP-10S Enerpac ±2% fs Pressure Gauge

H0246 Marsh ±1% fs ”

H0252 ” ” ”

H0254 ” ” ”

H0264 ” ” ”

H0268 ” ” ”

H0278 ” ” ”

H4264SP ” ” Pressure Gauge

H5254 ” ±1% fs* ”

H6090 ” ±1% fs Pressure Gauge

HP-60G Enerpac ±2% fs Hydraulic Pump and Cylinder Set (gauge only)

IC/TS-FC Military ±2% fs (b) Converter (gauge only)

a, b, c, d, e, f, g, h, i, j, k - see last page of Appendix A *Checklist provided

NAVAIR 17-20MP-06

A-2


J0042 Marsh ±2% fs* (a) Pressure Gauge

J0046 ” ” ”

J1442 ” ” ”

J1452 ” ” ”

J2046 ” ” ”

J2064 ” ±2% fs (a) ”

J4878 ” ” ”

J5442 ” ” ”

J5464 ” ” ”

J6248 ” ” ”

J6258 ” ” ”

J6264 ” ” ”

J6576 ” ” ”

J6582 ” ” ”

J8054 ” ” ”

J9787-34 Kent-Moore ±2% fs ”

MA2169C Schrader ±2% fs Pressure Gauge

MDE32387-1 McDonnell Douglas ±5% fs ”

NA14PPF4RWCX Weksler ±1% fs ”

NB2 Weksler ±1% fs Duplex Pressure Gauge

NB5 ” ” ”

PG-1 Weiss and Son ±1% fs (f) Pressure/Compound Gauge

PT 1088 US Gage ±2% fs (b, g) Pressure-Temperature Gauge

PTA 1088 ” ” ”

PW-911-DP-001 ITT Barton (j)* Differential Pressure Indicator

PW-912-DP-002 ” ” ”

P1408 US Gage ±0.5% fs to 1000 psig, ±1% fs, 1500 to 5000 psig

Pressure-Temperature Gauge

P1590 ” ±2% fs (b) Pressure Gauge

P500 ” ” ”

P546 ” ” ”

P562 US Gage ±2% fs (b) Pressure Gauge

P580 ” ±2% fs (a) ”


NAVAIR 17-20MP-06

A-3


P844U US Gage ±2% fs Pressure Gauge

P601 ” ±2% fs (b) ”

P602 ” ” ”

P645FF ” ” ”

P844 ” ” ”

ST-255 Stant Manufacturing ±2% fs Pressure Tester (gauge only)

ST-255A ” ” ”

VTS 460A ” ” ”

W0010 Marsh ±2% fs (a) Pressure Gauge

1 ” ±2% fs ”

1C3569G3 General Electric ±2% fs (a)* Nozzle Hydraulic Actuator Unit Assembly, (pressure gauges only)

100 Dresser ±0.5% fs Pressure Gauge

100-3S Marsh ±0.5% fs* ”

1000 Ashcroft +2% fs (b) ”

1000S ” ” ”

1009A ” ±1% range span (c)* ”

1009B ” ” ”

1009G ” ” ”

1009KB ” ” ”

1009KB Dresser ” ”

1009KG Ashcroft ” ”

1009KGS Ashcroft ” ”

1010 Ashcroft ” ”

1010T ” ” ”

1057 Ashcroft ” ”

1079 series Ashcroft ” ”

1084P ” ±0.5% fs ”

1084P Dresser ±0.5% fs Pressure Gauge

111.10 Wika Instrument corp. ±1.5% fs ”

120 RCA +2% of range span Pressure Gauge

1202PG Orange Research Inc. +2% fs (e, f) Differential Pressure Gauge

1220 Ashcroft +1% of range span Pressure Gauge


NAVAIR 17-20MP-06

A-4


1223UC Ashcroft +0.5% of range span (c)

Pressure Gauge

123SFL50161-1 Grumman Aerospace ±1% fs Rotodome Retr. Set (gauge only)

123SFL50173-1 ” ±0.5% fs Vacuum Set (gauge only)

1245A Ashcroft ±1% fs Pressure Gauge

1245B ” ±1% fs* ”

1245BW ” ±1% fs ”

1245E ” ” ”

1245J ” ” ”

1245JS ” ” ”

1245JW ” ” ”

1245P ” ” ”

1246P ” ” ”

1246P Dresser ” ”

1247B ” ” ”

12708-1 Cornelius Co. ±2% fs (b) ”

1302PG1 Orange Research Inc. ±2% fs Differential Pressure Gauge

1339A Ashcroft ±1% fs Pressure Gauge

1339A Dresser ” ”

1377 series Ashcroft ±0.5% fs (d) ”

1379 series ” ” ”

1379 series Dresser ” ”

1408 US Gage ±0.5% fs to 1000 psi, +1% fs 1500 to 5000 psi

”

153S18 Taylor ±1 in H2O* Pressure Calibrator

1623904 NAVORD DWG. ±1% fs (k)* Pressure Gauge

1778990 ” ±1% fs* ”

179-249 B.F. Goodrich Aerospace and Defense Prod.

±1% fs center third, ±1.5% fs rest*

Tire Inflation Valve Test Fixture (gauge only)

18-013-204 Norgen ±3% fs Test Fixture (gauge only)

1901T US Gage ±0.5% fs Pressure Gauge

1980 ” ” ”

2000 Ashcroft Controls ±2% fs (a, f) Pressure Gauge


NAVAIR 17-20MP-06

A-5


223421 Detroit Switch ±1 psig of set point Pressure Switch

226 ITT Barton (j)* Differential Pressure Gauge

227 ” ” ”

227A ” ” ”

246 ” ” ”

247 ” ” ”

24-803 Parker Hannifin ±2% fs lower half ±3% fs upper half

Pressure Gauge ”

2482217 Lockheed ±1% range span (c)* ”

281 ITT Barton (j) Differential Pressure Indicator

2814838 Marsh Instrument Co. ±2% fs* Pressure Gauge

31019-5000 Scovill ±3% fs Hydraulic Pressure Gauge

316 ITT Barton (j) Differential Pressure Indicator

316C ” ”* ”

3192 FLC Instrument Inc. ±0.5% range span (c)

Pressure Recorder

3283665 ” ±2% fs* Leak Test Kit (pressure gauge)

3284065 Westinghouse ±0.25 psig* Launch Tube Leak Test Kit

3715 Scovill ±5% fs* ”

40H-100 McGee and Hogan ” Pressure Gauge

410 Helicoid ±0.5% fs Pressure Gauge

430 ” ” ”

44S369 Taylor ±1 in. H2O* Pressure Calibrator

44S390 Taylor ±1% fs* Pressure Calibrator

440 Helicoid ±0.5% fs Pressure Gauge

440AS Helicoid ±0.5% fs ”

4.4389 Balkamp, Inc. ±1 psig Leak Tester, Automotive Cooling System (pressure gauge only)

448313 Rexnord ±1% fs Pressure Gauge

5 Marsh ” Pressure Gauge

580 US Gage ±2% fs (a) Pressure Gauge

5801 US Gage ±1% of range span (c, f)

Pressure Gauge


NAVAIR 17-20MP-06

A-6


5809 US Gage ±1% of range span (c)

Pressure Gauge

5841 ” ” ”

63-1112 Matheson ±2% fs (b) Pressure Gauge

64A128J1 General Electric Co. ±1% fs* (pressure gauge) ±3 psi* (relief valve)

Inlet Guide Vane Tester

65-0534 Bacharach ±1% fs (a) Pressure Gauge

703613 Sigma-Netics See Checklist* Pressure Switch

718 Data Electronic Corp. Air gauge: ±2% fs* Hydraulic gauge: ±1% fs*

Hydraulic Check and Fill Stand (gauges only)

8859W Schrader ±1% fs* Hydraulic Pressure Gauge

960048 Products Support Inc. ±5% fs* Breakaway Force Check Unit

*Checklist provided a - Add ±1% fs to basic tolerance for calibration points below 25% or above 75% of range span. b - Add ±1% fs to basic tolerance for calibration points in lower and upper third of range span. c - Range span - This refers to the complete range of the gauge. It is used for gauges with a scale beginning above

zero. The range span of gauges with the lowest pressure point above zero will be the span between the lowest pressure point and fullscale.

d - If the TI is an Ashcroft (Dresser) gauge and has electrical contact, add to the listed tolerance an additional ±0.5% fs.

e - Use NAVAIR 17-20MP-07 for ranges greater than 10,000 psig. f - Use NAVAIR 17-20MP-16 or NAVAIR 17-20MP-41 for vacuum gauges. g - Use NAVAIR 17-20ST-02 for temperature ranges on pressure-temperature gauges. j. - ITT Barton D/P gauges are purchased under Mil-I-18997 with the following specification: For indicators

without switches: ±1.0% of range span. For indicators with switches: ±1.5% of range span and the switch set point is ±3.0% of range span. At SWP they will not vary by more than the zero ± (the TI tolerance plus 1% of range span. Barton gauges not purchased under this mil spec will have different TI tolerances. The technician should check available documentation to ascertain the correct tolerance of their D/P gauge.

k - Tolerance is ±10 psi from 1400 to 1500 psi.

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