YOKOGAWA av550g, User Manual

Page: 137 / 213

< 9. Calibration >
9-8
IM 11M12D01-01E
NOTE
When setting, bear the following points in mind:
1) When calibration is to be started by a contact input signal, you need to define and enable the
contact input signal on the [Input contacts] display.
2) The starting of Automatic Calibration may be delayed by status of the channel to be calibrated or
by the status of other channels, as explained by Table 9.1 below:
3) If the calibration interval is shorter than the sum of hold (stabilization) time plus calibration time,
the second calibration start time will conflict with the first calibration. In such a case, the second
calibration will not be conducted. (When both zero and span calibrations are to be performed, the
calibration time is double that required for a single (zero or span) calibration.)
4) If the (Calibration) Interval is set to DD: 00, HH: 00 then Automatic Calibration will not be
performed.
5) If you set the start date before the current date, then Automatic Calibration will not start.
6) [Cal. time] of [Calibration timing] display will be equalized to [Check time] of [Semi-auto ind. chk]
display .
Table 9.1 When Auto Calibration conflicts with Other Commands
Other
commands
Calibration
Purging
the
channel
Other
channel
CAL
Indication
check in
other channel
Blow back
in other
channel
Mainte-
nance
CAL chan.
in warmup
status
CAL chan.
in Error
status
CAL chan.
now
disabled
Manual x x x x x x x x
Semi-Auto x x x x x x x x
Auto Wait Wait Wait Wait Wait x x x
X : Cannot perform calibration
Wait : Wait until other command finishes before starting calibration
<Shipping-time defaults>
At shipping-time (or after resetting parameters) default values are as shown in Table 9.2 below.
Table 9.2
Item Default
Mode Manual
Points Span-Zero
Zero gas conc 1.00%
Span gas conc 21.00%
Hold time 3 min. 00 sec.
Cal. time 3 min. 00 sec.
Interval 1 day 00 hrs.
Start date yy01mm01dd01
Start time hh00mm00