ACT-2I & ACT-2V
AC Input, Two-Wire Transmitter
Operator’s Manual
Contents:
1. Calibration
2. Connection
3. Mechanical
4. Specifications
1. Calibration Instructions
1.1
The ACT-2 coarse ranging is factory set.
The Zero and Span potentiometers located on the
unit’s front panel are used for fine tuning.
1.2 Calibration instrumentation:
1. 24Vdc power supply
2. AC voltage/current calibrator
3. High accuracy DVM
4. Small screwdriver
Connect the transmitter to be calibrated according to fig. #1.
Fig. #1
a. Set calibrator to 0 output
b. Adjust with the Zero potentiometer to obtain an output current of 4.000mA
c. Set the calibrator to I/V maximum.
d. Adjust with the Span potentiometer to obtain an output current of 20.000mA
e. Repeat steps a to d until satisfactory results are achieved.
