YOKOGAWA IR400 series, User Manual

Page: 62 / 121

<6. SETTING AND CALIBRATION>
6-21
IM 11G02N01-01E
Example
Setting range
Caution
Auto calibration status contact output is closed during auto zero calibration, and is open in other
cases.
Start Time SUN 12:00
Cycle 12 hour
Flow Time 300 sec
ON/OFF ON
In case where auto zero calibration is carried out at the above setting.
Flow time
: Auto zero calibration
Sunday
12:00
Cycle
Zero
calibration
300sec
Monday
0:00
Monday
12:00
Gas replacement time after calibration is the same as
the flow time.
Replace-
ment
time
300sec
(An example of “Ch1: through Ch5: enable”, as given in Item 6.2.4 “Auto Calibration Components/
range”)
Cycle : 1 to 99 hours or 1 to 40 days (initial value 7 days)
Flow time : 60 to 900 sec (initial value 300 sec)
● When an auto zero calibration starts, the measurement screen automatically appears.
● Any key operation other than key lock ON/OFF and “Stop Auto Zero Calibration” (see
Item 6.5.2) is not permitted during auto zero calibration. “Stop Auto Zero Calibration”
cannot be performed with the key lock to ON. To cancel auto zero calibration forcedly,
set the key lock to OFF and then execute “Stop Auto Zero Calibration.”
● If the auto calibration period and auto zero calibration period have overlapped, the auto
calibration is retained, ignoring the auto zero calibration of that period.
● When the hold setting is set to ON, the hold time of auto calibration contact and
measurement value output signal is extended after calibration for gas replacement time.
● Turn on the power again after it is turned off (including the case of power failure) at the
time set as the next start time in auto zero calibration, and then repeat it in the set cycle.