Installation - Output Wiring Procedures
Release M DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual 39
April 2017
2.7 Output Wiring Procedures
4-20 mA control output wiring
You can wire control output 1 or 2 for 4-20 mA output.
The prerequisites are:
ï‚· Model Number - Table 2 = 1X, 6X, X1, X6
Refer to Figure 2-16 and follow the procedure in Table 2-15 to wire 4-20 mA control outputs.
Table 2-15 4-20 mA control output wiring
Open the recorder door. Loosen the captive screw in the chart plate and swing the plate out.
Locate connector J1 near the top of the control output #1 printed circuit board (refer to Figure
2-16 for location).
Remove the unwired plug from J1.
Run the output wires through the desired knockout.
ï‚· Install the ferrite filter as shown in Figure 2-11.
 Install the .0047µF capacitor as shown in Figure 2-16.
Strip insulation from the end of each wire.
Loosen the screws in plug J1 terminals and position the plug as you would to plug it into J1.
Observing the polarity, insert the wires into the appropriate screw clamps as shown (refer to
Figure 2-16). Tighten the screws to secure the wires.
Install the wired plug into J1.
Locate jumper position W6/W7 on the bottom left portion of the board. Make sure W7 position
is selected for 4-20 mA output.
Repeat steps 2 through 10 for control output #2 printed circuit board as applicable.
ATTENTION
Be sure that the 4-20 mA current output is aligned. Refer to subsection 8.2 Current
Proportional Output Calibration.
The 4-20 mA output can be used as a retransmission output if it is not used as a control
output.
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