VMA0055 V/mA Module
Voltage and current measurement and simulation module for use with the Meriam MFT4000 Series multifunction calibrator
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The VMA0055 is a DC voltage and current measurement and simulation module for use with the Meriam MFT4000 Series Multi-Function Tester. The module features the functionality of a DVM and loop calibrator for convenient field versatility. When used with other MFT functions, the VMA / MFT combination provides valuable functionality not available in other devices. Measurement ranges include ± 500 mV, ± 55 V, and ± 100 mA. Sourcing capabilities include ± 1000 mV, 0 – 24 V and 0 – 22 mA. The VMA module will also simulate transmitter outputs when connected to a loop or it can be used to temporarily supply 24V DC loop power to unpowered devices during commissioning or calibration activities. 12 VMA0055 Advantages VMA0055 goes far beyond the ± 50 V / mA measurement capability of the MFT base unit and has its own isolated power supply so common ground problems are not an issue.
• Features DC current (mA) measure and source modes, Volts DC measure and source modes, 2-wire transmitter simulation mode, and loop power mode
• Power a transmitter directly from VMA anywhere, anytime
• Measure mV, V or mA as you would with a digital multimeter
• Source precise voltage or mA signals to check calibration or operation of receiving devices or step a valve positioner
• Concurrently use MFT base unit to check transmitter input (P, T, V, i) and output
• Use MFT 4010 HART® communications to commission or reconfigure unpowered transmitters
• CE mark, NIST traceable, and intrinsically safe (MET laboratories)
