Martel Electronics 321A-5CV-15CV Pressure Calibrator
The Martel Electronics 321A-5CV-15CV is a high-accuracy pressure calibrator designed for demanding field applications, particularly gas custody transfer. With dual isolated stainless steel sensors (5 PSI and 15 PSI compound) and 0.025% F.S. accuracy, this calibrator delivers reliable performance for critical measurements. It is part of the BetaGauge 321A series, known for its rugged design and enhanced features.
Key Features & Highlights
- Two isolated, stainless steel pressure sensors with 0.025% F.S. accuracy (5 PSI and 15 PSI compound ranges)
- Temperature compensation ensures accuracy in field conditions
- External pressure module connection supports all BetaPort-P pressure modules (27 ranges) for extended capability
- Pt100 RTD input for temperature measurement, accurate to 0.1°C (0.2°F)
- Measure 4-20 mA input and internal 24 V loop power supply for powering transmitters under test
- Measure up to 30 V DC
- Large graphic LCD with backlight, configurable to display up to 3 inputs simultaneously
- Pressure displayed in 17 engineering units plus custom units
- Switch test on Pressure 1, Pressure 2, or external pressure module
- Operating mode layers support simple to complex applications
- Store up to five frequently used setups; last setup auto-recalled on power-up
- % Error and damping functions
- Rugged, compact design operates on four AA batteries
- Supplied with soft case, AA batteries, manual, NIST-traceable certificate, and test leads
Applications
The Martel Electronics 321A-5CV-15CV is ideal for gas flow calibration and custody transfer applications where accuracy and reliability are paramount. It is also suitable for general pressure calibration, transmitter testing, and temperature measurement in industrial settings.





Reviews
There are no reviews yet.