TWI-MVX: Loop-Powered Two-Wire Millivolt to 4-20mA Converter/Isolator
Function:
The TWI-MVX is an isolated two wire millivolt transmitter that comes in a small, explosion proof
housing compatible package. It has easily accessible screw terminals and is built in a rugged housing.
The many different millivolt ranges allow it to be used in a great variety of applications such as current
measurment through a shunt, PLC front end conditioning, etc.
Specifications:
Isolation: Input to Output to Power 800 VAC (test)
Operating Power (from Output Loop): 12-60 VDC
Input Impedance: 1 Meg Ohm min.
Output: 4-20 mA
Accuracy/Linearity:+/- 0.25% max., +/- 0.1% typ.
Response Time: 100 msec to 63% of final value, 400 msec to 99% of final value
Operating Temperature: -20 Deg.C. to +50 Deg.C.
Temperature Effects: +/-0.25% max., +/-0.1% typ. (for 50 Deg.C. change)
Span Drift: 0.025% per Deg.C.
Line Effects: 0.03% per 10 VDC Line Change (calibrated for 24 VDC)
