The SDM-CVO4 is a synchronously addressed datalogger peripheral that outputs variable voltage or current signals under datalogger program control. Each output can be set to 0-10 Vdc or 0-20 mA by the datalogger program (current outputs can also be scaled and limited to 4-20 mA).
Typical applications include driving remote 'current-loop' display units, re-transmitting measured values to industrial control systems that have current or high voltage inputs, sending control signals to valve controllers and providing excitation voltages or currents to external sensors.
Features
Expands datalogger analog output capability
Provides four independent current or voltage outputs
Supports a voltage output range of 0 to 10000 mV with a resolution of 2.5 mV
Supports a current output range of 0 to 20000 uA with a resolution of 5 uA
Generates a 0-20 mA current source using its own power supply
Compatible with CR10(X), CR23X, CR7, 21X dataloggers
Conforms to EN55022-1:1998 and EN50082-1:1998
Specifications
Voltage mode
Range: 0 to 10,000 mV
Resolution: 2.5 mV
Accuracy (+23°C): ±0.02% of set voltage + (±2.5 mV)
Accuracy (-25° to +50°C): ±0.13% of set voltage + (±2.5 mV)
Current mode:
Range: 0 to 20,000 microamps
Resolution: 5 microamps
Accuracy (+23°C): ±0.02% of set current + (±5 microamps)
Accuracy (-25° to +50°C): ±0.1% of set current + (±5 microamps)
