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12/03 DR4300 Circular Chart Recorder Product Manual
31
2.5.2 Analog Input Wiring
Introduction
The input for pen channel 1 is wired to TB2 on the printed circuit assembly (PCA) on the right (when
facing recorder). The input for pen channel 2 is wired to TB2 on the PCA on the left.
Each input can be wired for thermocouple, RTD, mA, mV, or Volt actuations.
ATTENTION
Make sure you have configured the recorder to accept the desired input type. See Section 3 –
Configuration, Startup, and Operation of Recorder Without Display
or Section 4 – Configuration,
Startup, and Operation of Recorder With Display.
Procedure
Refer to Figure 2-11 while following the procedure in Table 2-9 to install analog input wiring.
Table 2-9 Analog Input Wiring
Step Action
ATTENTION To avoid damaging the recorder, be sure that you install the power wires into the
correct screw terminals as shown in Figure 2-9 and Figure 2-10.
1
Turn off the power to the recorder.
2
Open the recorder door. Loosen the captive screw in the chart plate and swing the plate out.
3
Locate terminal block TB2 on the right edge of the printed circuit assembly for pen 1 (refer to
Figure 2-11).
4
Run the input wires through the appropriate conduit hole (see Figure 2-7 and Figure 2-8). DO
NOT bundle them with the power wires.
5
Strip 1/4-inch maximum of insulation from the end of each wire and form end to fit under the
screw terminal on the removable connection block.
6
Insert the wires under the appropriate screws for the applicable input type. See Figure 2-11 for
specific input actuation wiring.
Tighten the screws to secure the wires.
7
If the recorder has two pens, repeat Steps 3 through 6 to wire the input for the second pen
channel to TB2 on the PCA on the left inside of the recorder.