Installation - Input Wiring Procedures
Release M DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual 37
April 2017
0-10 Volt dc inputs
You can wire input 1 or 2 for 0–10 Volt dc actuations.
The polarity for inputs #1 and #2 is identical.
The prerequisites are:
ï‚· Model Number - Table 1 = 3X00, X300
Calibrate the recorder to achieve the stated accuracy. Refer to Section 7 – Input Calibration.
Refer to Figure 2-15 and follow the procedure in Table 2-14 to wire 0-10 Vdc inputs.
Table 2-14 0-10 Volt dc input wiring
Open the recorder door. Loosen the captive screw in the chart plate and swing the plate out.
Locate connector J2 on the printed circuit board for input 1 (refer to Figure 2-15).
Remove the unwired plug from J2 and replace it with the modified 4-screw plug from the bag of
accessories supplied with the recorder.
Run the input wires through the desired knockout—DO NOT bundle them with the power
wires.
ï‚· Install the ferrite filter as shown in Figure 2-11.
 Install the .01µF capacitor and the .0047µF capacitor as shown in Figure 2-15.
Strip insulation from the end of each wire.
Loosen the screws in plug J2 terminals and position the plug as you would to plug it into J2.
Using the 30755232-002, 100K-ohm, voltage divider connector kit supplied in the bag of
accessories, insert the wires into the appropriate screw clamps. Tighten the screws to secure
the wires.
Install the wired plug into J2. Since J2 has only three receptacles, one of the modified plug
connectors is designed to slide outside J2 when the plug is installed.
Locate jumper position W3 and make sure the jumper is in the proper position for your input
type. (See Figure 2-15 for the location.)
Locate jumper position MA/W1 and make sure the jumper is in the W1 position. (See Figure
2-15 for the location.)
Repeat steps 2 through 11 for input 2 printed circuit board as applicable.
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