thermetric_resistance_temperature_detector_rtd.pdf

7/27/2019 thermetric_resistance_temperature_detector_rtd.pdf

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RESISTANCE TEMPERATURE DETECTORS (RTDs)

THERMETRICs Industrial RTDs are designed for outdoor heavy duty applications, with the exception of Typ

566, they are intended to be used without a thermowell. A cast iron screw cover head offers protection in mosrugged environments. Aluminum heads are also available (list part number 9313-2 after part number of basi

unit for this option. 1/4 diameter RTDs are standard). 100 OHM platinum sensors are used, and they followthe international Resistance vs Temperature Curve IEC 751 (Replaced DIN 43760), which has a coefficient oresistance (Alpha) of 0.00385 OHMS/OHM/C. We manufacture other types of RTDs but recommend thi

standard for most applications.

Type 561

STANDARD NIPPLE

Element is brazed to end of nipple

Nipples are 1/2 NPT Sch. 40 steel

Nipple can be supplied in extendedlengths for hard to get at location.

Note: To determine RTD length for Types 561 through 565 add

3 to length from top of NPT thread engagement to tip

of probe to allow for head assembly. See standard lengths

shown in How To Order.

Type 562

HEX NIPPLE Hex nipple for easy installation 1/2 NPT process connection

Type 563

STANDARD INDUSTRIAL RTD probe is silver brazed to brass plug

for support Optional mounting adaptors available.


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Temperature Sensing Devices & Assemblies For Industrial Applications

Type 564

SPRING LOADED ASSEMBLY

Recommended when vibration is present Ideal for measuring bearing temperature Can be shipped unassembled for simple

field setting of insertion length 1 spring travel

1/2" NPT process connection Carbon steel nipple standard. For

stainless steel add 9120 to part number.

Type 565SPRING LOADED WITH FLUID SEAL

Pressure rating 20 P.S.I. 1/2 NPT process connection

Type 566

EXTENDED HEAD ASSEMBLY Provides extended head assembly for

ease of installation 1/2" NPT brass compression fitting with

1/8 vent hole included

For stainless steel compression fittingadd 9121 to part number

36 of 22 gauge stranded silver platedcopper, Teflon insulated lead wire withPVC coated stainless steel flexible

conduit Can be used with thermowell Can be spring loaded, add 9211-S to part

number If assembly is required without head and

terminal block, specify type 567


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Industrial RTD AssembliesDAILY THERMETRICS Industrial RTD Assemblies consist of three basic components:

1. A connection head assembly

2. A thermowell or protection tube3. A RTD element

The lengths and other dimensions of all three components are standardized to provide complete interchangeability. Select bas

components from this page. Thermowells and protection tubes can be selected from the thermowell catalogue. Contact your local Da

Thermetrics representative to show you how to lower your total cost by using standard RTD assembly, element, and thermowell leng

and designs.

STANDARD:

Heavy duty cast iron head Nipples are Schedule 40galvanized steel

Aluminum head available Unions are 150# galvanized malleable

iron 3 cap diameter conduit connection

1/4" diameter probe Use with standard length and .260 bore

thermowells.

SPRING LOADED: (Not illustrated) Maintains positive spring contact to

thermowell

Recommended where vibration is

present 1/4 diameter probe Use with standard length and .260

bore thermowells

TYPE NUMBER

STANDARD SPRING LOADED

Cast Iron

Head

Aluminum

Head

Cast Iron

Head

Aluminum

Head

Component PartsLength from

Head toThermowell

Add to Well

Drill Depth toArrive at

Element Length

511 531 Head Only 0 3512 532 522 542 Head and Nipple 2 3

513 533 523 543 Head, Nipple, and Union 5 6

514 534 524 544 Head, Nipple, Union, Nipple 5 6NOTE: Dimensions are established to utilize standard RTD and thermowell lengths. RTD lengths are shown in How To Order. Standard thermowell drill depths are 4, 6, 9,12, 15, 18, and 24.

Deduct 1 if wells with 4 drill depth are used.

Contact Daily Thermetrics or your representatives for other models for special applications and designs.


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How to Order

Type No.

RESISTANCE AND ACCURACY

1 100 OHM .6 Standard Industrial

2 100 OHM .12 (DIN Class B) High Accuracy

3 100 OHM .06 (DIN Class A) Ultra high accuracy4 2 X 100 OHM .6 Dual element - Standard Accuracy5 2 X 100 OHM .12 Dual element - High Accuracy

6 2 X 100 OHM .06 Dual element - Ultra high accuracy0 Other resistance, accuracy or temperature coefficient

LEADWIRE CONFIGURATIONS

1 3 wire Standard

2 2 wire

3 4 wire High accuracy

4 6 wire Standard - Duplex

5 4 wire Duplex6 8 wire High accuracy

0

OUTSIDE DIAMETER

8 0.385

6 0.25 Standard5 0.1884 0.125 Fast Response

0 Other

STEM DESIGN

1 Standard

2 Tip Sensitive (3/16" & 1/4 O.D. only)3 Flexible Sheath

TEMPERATURE LIMIT

1 Standard temperature -58F (-50C) to +482F (250C)2 Mid temperature -58F (-50C) to +752F (400C)3 High temperature -58F (-50C) to +1112F (600C)

LENGTH CODE

1 6"

2 9"

3 12"4 15"

5 18"6 21"

7 24"8 27"

9 30"0 Other - Specify

Thermowell Part No. from Catalogue (if required)

Documents

thermetric_resistance_temperature_detector_rtd.pdf