The Fisher 646 electro-pneumatic transducer uses a converter module that converts a 4 to 20 milliampere
input signal to a proportional 0.2 to 1.0 bar (3 to 15 psig) pneumatic output signal. The converter module uses small parts of minimum mass, which are balanced symmetrically around a pivot point at the center of the mass. This balanced arrangement results in a high performance instrument that reduces sensitivity to vibration.
Input Signal:4 to 20 mA DC, constant current with 30 VDC maximum compliance voltage
Output Signal:0.2 to 1.0 bar (3 to 15 psig) direct acting only
Recommended: 1.4 bar (20 psig)
Minimum: 1.4 bar (20 psig)
Maximum: 3.4 bar (50 psig)