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The A6500-UM Universal Measurement Card is a component of the AMS 6500 ATG machinery protection system.

The card is equipped with 2 sensor input channels (independent or combined, as per chosen measurement mode) working with most common sensors as eddy-current, piezoelectric (accelerometer or velometer), seismic (electro dynamic), LF (low frequency bearing vibration), Hall-effect and LVDT (in combination with A6500-LC) sensors. Besides this, the card contains 5 digital inputs and 6 digital outputs. The measured signals are transmitted through the internal RS 485 bus to the A6500-CC Com Card and converted to Modbus RTU and Modbus TCP/ IP protocols for further transmission to host computers or analysis systems.

In addition, the Com Card provides the communication through the USB socket at the face plate for the connection to PC/ laptop for the configuration of cards and for visualization of measuring results. Apart from that, the measuring results can be output through analog outputs 0/4 - 20 mA. These outputs have a common ground and are electrically isolated from system supply. The operation of the A6500-UM Universal Measurement Card is performed in the A6500-SR System Rack, which also provides connection of supply voltages and signals. The A6500-UM Universal Measurement Card provides the following functions: Q Shaft Absolute Vibration Q Shaft Relative Vibration Q Shaft Eccentricity Q Case Piezoelectric Vibration Q Thrust and Rod Position, Differential and Case Expansion, Valve Position Q Speed and Key Signal Input, Eddy current Input Signal and Raw Signal Voltage Range -1 V to -22 V Frequency Range 0 to 18750 Hz attenuation <0.1 db Supply Voltage -23.25 V / -26.0 V DC selectable short circuit proof Maximum Supply Load 35 mA Supply Accuracy ±1% Supply Load Variation ±1% for loads 0 to 100% Supply Temperature Drift ±1% within operating temperature range of -20°C to +70°C