Extensometer 178

Extensometer 178

Extensometer 178

Product catalog summary
Features
  • Strain gage based sensor
  • Alloy steel construction
  • 2 Bolt holes
  • IP66 Hermetically sealed protection
  • Optional EEx ia IIC T4 Hazardous area approval
Applications
  • Tank weighing or level systems
  • Agricultural equipment
  • Rolling mill sensing
  • Moment sensing
  • Structural loading measurements
  • Bridge structures
Description

The Model 178 extensometer is a load sensor designed for force measurement on load-bearing structures. It is suitable for weighing, level control, stress, and fatigue monitoring. The design allows for multiple sensors to be mounted for complex stress profiling. It is ideal for non-intrusive level measurements, especially for materials with uneven buildup or liquids not suited for direct contact measurement. The extensometer can be retrofitted to existing structures without compromising integrity.

Specifications
ParameterValueUnit
Calibrated output1.7mV/V at 500 με
Overload capability (zero)300% of rated output
Overload capability (max)500% of rated output
Input resistance350±10Ω
Output resistance350±10Ω
Insulation resistance>2000MΩ
Excitation, recommended10VDC
Excitations, range5–20VDC
Thermal effect on zero0.025 ±% of FSO/°C
Compensated temperature range–30 to +80°C
ConstructionPainted steel
Environmental protectionIP66
Legal Disclaimer

All products, specifications, and data are subject to change without notice. VPG disclaims any liability for errors or inaccuracies. The specifications do not modify VPG’s terms and conditions of purchase. VPG disclaims liability for application or use of any product and any implied warranties. Customers must validate product suitability for specific applications. Products are not designed for life-saving applications unless indicated. Use in such applications is at the customer's risk.

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Catalog excerpts

Extensometer 178-1

Extensometer FEATURES Strain gage based sensor Alloy steel construction 2 Bolt holes IP66 Hermetically sealed protection Optional - EEx ia IIC T4 Hazardous area approval APPLICATIONS Tank weighing or level systems Agricultural equipment Rolling mill sensing Moment sensing Structural loading measurements Bridge structures DESCRIPTION The Model 178 extensometer is a load sensor designed for force measurement on any load-bearing structure. This extensometer is a complete solution for weighing, level control, stress and fatigue monitoring. The design also allows multiple sensors to be permanently mounted for more complex stress proiling and analysis. The Model 178 extensometer provides an ideal solution for non-intrusive level measurements for materials that are subject to uneven buildup, bridging, or sidewall collection. Also, liquids or wetted materials that are not suited for direct contact level measurement are an ideal application for the Model 178 extensometer. The design of the Model 178 makes it an excellent solution for retroitting existing structures without compromising the integrity of the vessel or structure. OUTLINE DIMENSIONS in millimeters Wiring diagram: + Excitation Red – Excitation Black + Output Green – Output White Technical contact: [email protected], [email protected], and [email protected]

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Extensometer 178-2

Model 178 Revere Extensometer SPECIFICATIONS VALUE Calibrated output Overload capability (zero) Input resistance Output resistance Insulation resistance Excitation, recommended Excitations, range Thermal effect on zero Compensated temperature range Construction Painted steel Environmental protection All speciications subject to change without notice. Technical contact: [email protected], [email protected], and [email protected]

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Extensometer 178-3

Legal Disclaimer Notice Vishay Precision Group, Inc. Disclaimer ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE. Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but not limited to, the warranty expressed therein. VPG makes...

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