100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 333
9 ANALOGUE OUTPUT OPTION
Up to four analogue output boards can be fi tted, each of which supplies two outputs. This allows any
of the recorder points to be output as a voltage or current signal, as confi gured. Any part of the source
point’s span can be mapped to the output range, and the outputs can be adjusted (as described below)
to compensate for errors in the monitoring system.
9.1 SIGNAL WIRING
Figure 2.2.1d shows the output wiring for analogue output boards.
9.2 SPECIFICATION
See Annex A for the analogue output board specifi cation.
9.3 CONFIGURATION
See
section 4.3.17
(output channel confi guration) for details.
9.4 OUTPUT ADJUST
Notes
1. Output adjust is relevant only to output channels confi gured as ‘V’ or ‘mA’, not to those confi g-
ured as Master Comms.
2. Output channels can be adjusted only by users with ‘Adjust I/O’ access permission (
section
4.4.1
)
9.4.1 Adjustment procedure
This procedure is carried out as follows:
1. Select ‘Output Adjust’ in the System menu.
2. Select the required channel.
3. Enter a low value for the recorder to output.
4. Observe what value the monitoring equipment is reading for this output
5. Enter this monitored value.
6. Repeat for a high value.
Note: 10% and 90% of output range are commonly used as low and high values respectively.
Figure 9.4.1 shows typical adjust pages.
9.4.2 Adjustment removal
Adjustments can be removed at any time, as follows:
1. Select ‘Output Adjust’ in the System menu.
2. Select the required channel.
3. Operate the ‘Remove Adjust’ key
4. Select ‘Yes’ from the resulting confi rmation dialogue.
