YOKOGAWA IR800G, User Manual

Page: 63 / 127

IM 11G06A01-02EN
5-8
5. SCREENS
1st Edition : Oct. 27, 2023-00
CAUTION
• When the Gas Channel setting is set to "Analyzer", assign "Sample Switching" to the
contact output, and when the gas flow channel setting is set to "Sampling system", assign
"System Calibration" to the contact output. (See 5.2.3 Contact output setting for more
information on contact outputs.
• If the gas flow channel setting is changed, make sure that the flow time setting is appropriate
so that there is no excess or deficiency in flow time.
• For the operation of the contact output due to different gas flow channels, refer to "5.4.4 Auto
Zero Calibration".
• Flow Time should be set to sufficient time for the concentration value to stabilize.
l
Setting example
On/Off On
First start day Sunday
First start time 12:00
Interval 12
Interval unit hour
Flow time zero 300 sec.
When auto zero calibration is performed with the above settings:
:Auto zero calibration
in progress
Sunday
12 ： 00
Interval
Monday
00 ： 00
Monday
12 ： 00
Zero cal
300 sec.
Replace
ment
300 sec.
Flow time
The gas replacement time after calibration is equal to the flow time.
(The components set to "Enable" (Ch1 to Ch5) in
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Manual Zero Calibration Setting of 5.1.1 Calibration channel setting will be
zero-calibrated all at once.)
Figure 5.3
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Setting range
Interval 1 to 99 hours or 1 to 40 days (default 7 days)
Flow time 60 to 900 seconds (default 180 seconds)
CAUTION
• When auto zero calibration starts, the measurement screen is automatically displayed.
• If the cycles of auto calibration and auto zero calibration overlap, priority is given to auto
calibration, and auto zero calibration is ignored for that cycle.
• For the gas replacement time after calibration, the hold of the contact and measured value
output signal for which automatic calibration is set is extended only when the hold setting is
"ON".
• After the power is turned off (including power failure, etc.) and then turned on again, the next
automatic calibration is performed at the time set for the start time, and then at intervals of
cycles.
• Regardless of whether auto zero calibration is ON or OFF, auto zero calibration can be
performed from the screen or by remote start.