TYPICAL APPLICATION
Figure 2: Load monitoring using a current
transformer and the DRG-SC-AC
Figure 1: DRG-SC-AC Factory Calibration:
0-500mVAC, 4-20mA
Warning: Do not attempt to
change any switch settings
with power applied. Severe
damage may occur!
Figure 3: Wiring Diagram for DRG-SC-AC
Figure 5: Mechanical Dimensions for DRG-SC-AC
CALIBRATION
1. After configuring the DIP
switches, connect the input to a cali-
brated AC source. Connect the
output of the actual device load (or a
load approximately equivalent to the
actual device load value) and apply
power. Refer to the Terminal Wiring
Diagram. (Figure 3)
NOTE: to maximize thermal stability, fi-
nal calibration should be performed in the
operating installation, alllowing approxi-
mately 1 to 2 hours for warm up and
thermal equilibrium of the system.
2. Set the calibrator to the desired
minimum and adjust the zero poten-
tiometer for the desired minimum
output.
3. Set the calibrator to the desired
maximum and adjust the span poten-
tiometer for the desired maximum
output.
4. Repeat steps 2 and 3, if necessary
for best accuracy.
Figure 1: DRG-SC-AC Input Range Selector-Switch Settings
Figure 2: DRG-SC-AC Output Range Selector-Switch Settings
Figure 3: DRG-SC-AC Input Jumper Settings
