Overview
The Clarostat 42-900 is a precision wirewound potentiometer designed for exacting analog control requirements in industrial automation, test equipment, and instrumentation. This single-turn unit delivers stable 10K ohm resistance with exceptional linearity and repeatability. The Clarostat 42-900 potentiometer combines robust construction—stainless steel shaft, solder lug terminals, and gold-plated connectors—with long rotational life, making it a dependable choice for control systems requiring precise voltage dividing and feedback applications.
Key Features
- Single-turn precision wirewound design for stable, repeatable resistance
- Stainless steel shaft with 1 7/8″ length from mounting surface and rear shaft extension option
- Gold-plated connectors and solder lug terminals for reliable electrical contact
- 10 million rotational life cycles for extended operational durability
- Available in multiple resistance values (1K, 10K, 20K ohm configurations)
- Designed for industrial automation, motion control, and test equipment applications
Technical Specifications
Detailed specifications are as follows:
- Resistance Value: 10,000 ohms (10K)
- Potentiometer Type: Wirewound, single-turn, precision
- Power Rating: 3 watts
- Shaft Material: Stainless steel
- Shaft Length: 1 7/8″ from mounting surface
- Terminal Type: Solder lug
- Connector Type: Gold-plated
- Rotational Life: 10 million cycles
- Taper: Linear
- Bushing Length: 3/8″ from mounting surface
Typical Applications
- Industrial automation and motion control systems
- Test and measurement instrumentation
- Process control feedback networks
- Analog input modules for PLC and HMI systems
- Precision voltage dividing and bias networks
- Equipment calibration and tuning circuits
Compatibility & Replacements
Compatible With
- Industrial process control systems requiring analog feedback
- PLC and HMI analog input modules (0–10V, 4–20mA conditioning)
- Motion control and servo positioning systems
- Standard analog measurement equipment and oscilloscopes
- Equipment requiring standard 3/8″ bushing mount potentiometers
Replaces / Drop-In Replacement For
- Clarostat 42-900 series units in alternate resistance values (verify exact resistance code)
- Legacy Honeywell/Clarostat precision potentiometer installations
- Similar single-turn 10K wirewound potentiometers in industrial control retrofit applications
Works With
- Analog signal conditioning and input cards for automation controllers
- Standard industrial networking protocols accepting 0–10V or 4–20mA input
- Studio 5000, TIA Portal, and standard PLC analog input modules
- Legacy and modern test equipment supporting variable resistor inputs
