2. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Aviation
(aircraft load monitoring) Heavy industrial paper textile mills
(paper / textile tension) Monitor drill / milling machine loads
Field service tasks to verify presses Mining Steel mills Cable
manufacturing Tractors / trailers (pulling load monitoring)
Industries Using Hydraulic Force Gauges
3. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Terminology
- Erichsen Hydraulic Force Gauges Dynamometer: A dynamometer is a
device for measuring force, torque or power. Hydraulic Force
Transducer: A transducer is a device that converts one form of
energy to another form of energy. Hydraulic Force Gauge: A
hydraulic force gauge is a small measuring instrument used across
all industries to measure the force during a push or pull test.
Early hydraulic dynamometer with dead-weight torque measurement
Image: Wikipedia
4. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Hydraulic
Theory The hydraulic force gauge uses the principles of hydraulic
force transmission. The force applied to a piston is converted into
hydraulic pressure which forces a curved flat tube (Bourdon Tube)
to Un Bend moving the pointer to the measured force. Hydraulic
force gauges are per design intended for static or near static
applications. Static is where the force to be measured F" remains
steady for at least 1 second. Continuous rapid changes in force can
destroy the pressure gauge, but the gauge may be protected with a
special throttle (Hydraulic Choke) against rapid increasing /
decreasing loads. How the Hydraulic Force Gauge Works
5. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Hydraulic
Theory PistonManometer Connector ORing Cylinder Inside the
Hydraulic Force Gauge
6. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Hydraulic
Theory Inside the Manometer LOW FORCE (Thinner tube walls, low
pressure) HIGH FORCE (Thicker tube walls, high pressure) Image:
Wonkeedonkeetools
7. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Pressure =
Force (Mass x Acceleration) Area Image: Lestoilesroses.net
Hydraulic Theory Hydraulic Force Transmission Force (smaller) Small
piston Distance moved Liquid that cannot be compressed Large piston
Distance moved Force (greater)
8. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE PISTON FORCE
Hydraulic Transmission Principal Animation
10. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Compact
design low profile and versatile Used for occasional spot checks,
structure setting and field service work rather than continuous
loading Compensation on surfaces that are not straight Standard
with a max. reading pointer (63mm gauge) Load Range; 250N (56Lbs)
to 630kN (140,000Lbs) Accuracy: = 2% of full scale Digital
manometer option; Accuracy; 0.25% of FS, IP65, Batt>1000h High
pressure hose and capillary tube options Features Erichsen Force
Gauge 329
11. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Compact
design with alignment ball Used for occasional spot checks as well
as integrated in a permanent installation Durable, robust
construction suitable for rough operating conditions on machines
and installations. Especially suited for large surfaces. Ball
feature for easy alignment of your load Standard with a max.
reading pointer Load Range; 400N (90Lbs) to 63kN (14,000Lbs)
Accuracy: = 2% of Full Scale High pressure hose and capillary tube
options Features Erichsen Force Gauge 338
12. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Precise
100mm manometer Durable, robust construction suitable for rough
operating conditions on permanent machines and installations
Manometer with Zero Point adjustment Load Range; 1kN (220Lbs) to
1000kN = 1MN (220,000Lbs) Accuracy: = 1.5% of Full Scale High
pressure hose and capillary tube options Features Erichsen Force
Gauge 332
13. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Designed
for tension and compression applications Suitable for continuous
load measurements of axial forces as; anchoring systems, bearing
forces on lathes, boring machines, extrusion presses etc. Load
Range; 1kN (220Lbs) to 2500kN = 2.5MN (560,000Lbs) Accuracy: = 2%
of Full Scale Digital manometer option; Accuracy; 0.25% of FS,
IP65, Batt>1000h High pressure hose and capillary tube options
Features Erichsen Force Gauge 343
14. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Standard A
Version Optional B Version Treaded mounting holes are optional on
the 343 model Optional Flexible or Capillary Tube (all models)
Manometer Compression Piston Manometer Specifications Dimensions
343
16. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE The
Erichsen force gauges are made out of stainless steel and
hermetically sealed into a closed circuit filled with hydraulic
oil. Mechanical limits are integrated into the Erichsen force gauge
to minimize overload conditions. These gauges should not exceed
load capacities. Immune to ESD (Electro Static Discharge) and
transient voltages unlike their electronic counterparts. Operate in
harsh conditions where traditional load cells wont operate. A
Hydraulic Choke may be ordered to minimize load fluctuations (Note;
this will not protect from overload conditions). Optional version
may be ordered with Semi Rigid Stainless Tubing or Flexible
Capillary Tubing. This allows the manometer to be mounted remotely
from the load source. For example; in hazardous environments, tight
spaces or when the load application is remote from the user.
Standard traceable certificate comes with every Erichsen force
gauge.17025 optional certificate is available. An optional digital
manometer is available on 329 and 343 models. Optional scales
available for all Erichsen force gauges; kgf, or Lbf (N is
standard). Features
17. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE FAQs Do all
the Erichsen hydraulic force gauges have maximum pointers? Only the
gauges with the standard 63mm manometer have maximum pointers. What
is the 6mm Extension Connection Tube? This is a straight semi-rigid
tube to extend the manometer away the gauge base, available in 50,
100, 150, 200, 300mm lengths. What is the load rating speed? Not
less than 1 second to reach Full Load Capacity. What precautions
should I take if I need to monitor fluctuating loads? Assure that
the loads measured fluctuate between 10 to 80% of full scale.
Assure that nominal loads are reached in not less than 1 second. We
recommend using the optional Hydraulic Choke.
18. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE Learn more
about the Erichsen hydraulic force gauges on
www.ametektest.com