Transducer Techniques PSM-R Bridge Excitation Power Supply Module

Description:

The Transducer Techniques PSM-R is an adjustable bridge excitation power supply module designed to provide a stable, low-noise DC excitation source for strain gauge load cells, pressure transducers, torque sensors, and other Wheatstone bridge-based transducers. Powered from a standard 105–125 VAC source, the PSM-R incorporates a low interwinding capacitance isolation transformer and a high-stability linear voltage regulator to deliver an adjustable output from 4 to 15 VDC with excellent regulation and remote sensing capability to eliminate voltage drop errors. It is commonly used in laboratory instrumentation, calibration systems, industrial test equipment, and OEM measurement systems requiring precise bridge excitation.

Applications:

The Transducer Techniques PSM-R is designed to supply regulated excitation voltage for strain gauge bridge sensors while maintaining high measurement accuracy and low electrical noise. It is widely used with load cells, torque transducers, pressure sensors, force measurement systems, calibration equipment, data acquisition systems, and research laboratories where stable sensor excitation is critical for reliable measurements.

Technical Specifications:

• Manufacturer Part Number (MPN): PSM-R
• Manufacturer: Transducer Techniques
• Product Type: Adjustable Bridge Excitation Power Supply Module
• Input Voltage: 105–125 VAC, 60 Hz
• Nominal Input: 115 VAC ±10%
• Output Voltage: Adjustable 4–15 VDC
• Maximum Output Current: 150 mA
• Output Regulation (Line and Load): 0.005%
• Noise and Ripple: 0.5 mV RMS
• Remote Sense: Yes
• Voltage Regulator Type: High-Stability Linear Regulator
• Isolation Transformer: Low Interwinding Capacitance Design
• Line Isolation: 1100 VRMS
• Operating Temperature: 0°C to 70°C
• Storage Temperature: -25°C to 85°C
• Temperature Coefficient: 50 ppm/°C
• Dimensions: 3.75 × 2.00 × 2.87 in
• Function: Bridge Excitation Power Supply for Strain Gauge Transducers
• Compatible Components: Load Cells, Pressure Transducers, Torque Sensors, Force Sensors, Wheatstone Bridge Sensors, Signal Conditioners, and Data Acquisition Systems

Common Replacements:

• Transducer Techniques PSM-F10 Fixed 10 VDC Power Supply Module
• Interface Sensor Excitation Power Supply
• FUTEK IAA Series Sensor Excitation Module