Honeywell manual Disconnect the field wiring, DR4300 Circular Chart Recorder Product Manual 145

Input and Output Calibration for Recorder with Display

Disconnect the field wiring

Depending on which input (1 or 2) you plan to calibrate, tag and disconnect any field wiring connected to the input terminals on the printed circuit assembly for the appropriate pen channel. Refer to Figure 5-1and follow the procedure in Table 5-3.

Table 5-3 Disconnect the Field Wiring

Step Action

1Remove the power from the recorder, open the door on the recorder, and swing the chart plate out.

2Depending on the input (1 or 2) you are going to calibrate, disconnect the input connections from terminal block TB2 on the right edge of the applicable printed circuit assembly. See Figure 5-1for the location of the circuit boards and input connectors.

	Main PCA
	Pen 2
7	7
	TB2
TB1	TB1

Main PCA

Pen 1

TB2

24091

TB2

+

–

R

Figure 5-1 Location of the Input Connections on the Input Boards

12/03 DR4300 Circular Chart Recorder Product Manual 145