Honeywell DR4300 Replacement Instructions Manual page 13

Pen Alignment – Recorder without Display
Table 7 gives the procedure for aligning pens at the zero and 100% chart positions in a recorder
without a display. Refer to Figure 6 for location of switches.
Table 7
Step
1 Place the run/setup switch SW5 to the setup position (toward the top of the board) on
the pen's printed circuit assembly (PCA).
Press SW3 and SW4 simultaneously and release them.
2
The pen will move downscale toward the hub and be positioned at the previously set
0% point on the chart within approximately 10 seconds.
If the pen tip is greatly out of position, follow Steps 3 through 6.
If pen position requires only minor adjustment, go to Step 7.
3 Turn off the power to the recorder before the pen begins to move upscale
(approximately 10 seconds).
4 To place the pen tip in approximately the correct position, loosen the screw holding
the pen 1 arm to the servo shaft.
Align the tip of pen 1 with the zero line on the chart and tighten the locking screw.
5
6 Turn on the power and repeat Step 2
To fine-tune the alignment of a pen, press the raise switch SW4 or lower switch SW3
7
on its PCA until the pen tip is aligned with the zero line on the chart.
Approximately 10 seconds after the last press of the raise or lower switch the pen will
move to the previously set 100% point.
8 To fine-tune the 100% point alignment of the pen, press the raise switch SW4 or
lower switch SW3 until the pen tip is aligned with the 100% line on the chart.
Approximately 10 seconds after the last press of the raise or lower switch the pen will
move downscale as described in Step 2.
9 To exit the pen alignment cycle place SW5 to the run position (toward the bottom of
the board). Pen will return to normal operation.
3/05
Procedure for Pen Alignment (Recorder without Display)
Replacement Kit Instruction 43-DR-33-87
Action
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