GTD-2000TxW
Instruction Manual
7. System Mode
A2 TYPE
[INC]
- It is a mode that sets operational direction of Alarm2. Contact "↑" or "↓" key to display "INC" or "DEC".
- "INC" mode operates when the value is equal or larger than set alarm threshold. "DEC" mode operates
when the value is equal or less than set alarm threshold.
- Contact "FUNC" key when a desired mode is displayed to set then enter the next mode.
A2 TYPE
[DEC]
A2 DBAND
[ 0]%F
- It is a mode that sets Dead band value for Alarm2 operation. Use "↑" or "↓" key to set a value.
- It is a function where Alarm2 operates at values above the sum of Alarm2 level and dead band values
and releases at values below Dead band value subtracted from Alarm2 level.
- When a desired alarm 2 dead band is displayed, press "FUNC" KEY to set it and enter the next item.
A2 TIME
0 SEC
- It is a function to prevent instantaneous malfunction of detector due to external shock and noise other
than from normal operation and time can be set in a range between 0~60 sec.
- For Alarm2 dwell time setting, press "↑" or "↓" key to increase or decrease in unit of 1 sec, respectively.
- When a desired Alarm 1 dwell time is displayed, press "FUNC" KEY to set it and enter the next item.
- Ex.) Alarm threshold value: 40% LEL / Delay time: When it is at 5 sec, Alarm triggers when the
measured value is above the set value based on 40%LEL for 5 sec or longer. When it goes down
below the set value within 5 sec, alarm is not triggered.
