9 - 14 IM 4H3B1-01E
9.3 How to Change Initial Settings for Analog Recording
This paragraph describes how to change initial settings for analog recording.
9.3.1 How to select pen offset compensation ON/OFF (initial value = ‘OFF’) (pen model)
9.3.2 How to assign different colors to channels (dot model)
Related settings concern the way to adjust the position of pens and printer carriage,
which is described in chapter 11 (see 11.3 and 11.4).
9.3.1 How to Select Pen Offset Compensation ON/OFF (Pen Model)
The POC function eliminates deviation (phase difference) between the pens on the time
axis. Figure 9.6 shows a side view of the recording status for the 2 pen model (3 & 4
pen models are similar).
The initial value is ‘OFF’.
Reference pen is
2nd pen for 2 pen model
3rd pen for 3 pen model
4th pen for 4 pen model
Figure 9.6 Side View of Recording Status
Figure 9.6 shows that, in any pen recorder (in order to prevent collision between pens)
the pens must be offset by a distance p. Therefore, points recorded at the same time are
separated on the time axis.
In the case of Pen Offset Compensation, a delay memory is used to store measurement
data, equivalent to the time offset p of the pens (other than the reference pen).
The pens will start to record these stored data when the chart is fed by the amount of
p (time offset).
NOTE Immediately after the recording has been started, only the reference pen operates
normally. The other pens might not seem to operate correctly, but this is due to the time
offset.
When you stop the recording, the chart will stop and therefore data stored in the delay
memory will not be recorded anymore. Therefore, these data will be lost.
Pen Offset Compensation is meaningless for the 1 pen model. Therefore POC setting
will be ignored for the 1 pen model.
Note that an asterisk will be printed in the periodic printout when POC is ‘ON’.
SETTING PROCEDURE:
Enter the SET UP Mode by turning ‘ON’ the power while pressing and holding the
ENT-key until the SET UP display appears.
Use the UP/DOWN-keys to select the display ‘SETUP=POC’. Press the ENT-key.
Select ON or OFF. Then press the ENT-key. The display ‘*POC SET*’ will appear.
The POC setting has been completed, but has not been stored yet. You can now adjust
other settings in the SET UP Mode, by using the ESC-key.
Before leaving the SET UP Mode, you have to store your new settings. Press the ESC-
key to return to the ‘SETUP=POC’ display and then select the ‘SETUP=END’
display.
Press the ENT-key. Select ‘END=STORE’ to keep your new settings or
‘END=ABORT’ and press the ENT-key. After a few seconds, the Operation Mode will
appear.
P
Recording chart
Reference pen (2nd pen)
1st pen
Chart feeding direction
Front of Recorder
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