Alarm Mode - GASTRON GTD-2000TxW Instruction Manual

7.3. ALARM MODE

PASSWORD
- Contacting "FUNC" key with the Magnet-bar for 2 s or longer in Measuring Mode enters Password mode.
[**]
- After setting Password using "↑" or "↓" key, contact "FUNC" key.
- Contact "↑" or "↓" key to select "Alarm Mode".
ALARM
- Contact "FUNC" key when "ALARM MODE" is displayed to enter Alarm setting mode.
MODE
- Contact "RESET" key to return to Measuring Mode.
- It is a setting where Alarm Mode Setting is turned on or off.
- Contact "↑" or "↓" key to change ON/OFF status. When it is ON, Alarm function and Alarm Mode setting
ALM USED
can be performed.
[ ON]
- GTL-100 explosion-proof warning light can only be used when it is ON.
- Contacting "FUNC" key enters the next mode.
- It is a mode that sets Reset method after running of Alarm1. Contact "↑" or "↓" key to change "ON" and "OFF".
AL LATCH
- "OFF" sets to automatically reset the alarm. "ON" set to reset the alarm only when Reset key is pressed.
[ ON]
- Contact "FUNC" key when a desired mode is displayed to set then enter the next alarm setting mode.
- It is a mode that sets Alarm1 level. Contact "↑" or "↓" key to increase or decrease Alarm1 level,
A1 LEVEL
respectively.
[ 20]
- When a desired alarm 1 threshold is displayed, press "FUNC" KEY to set it and enter the next item.
A1 TYPE
- It is a mode that sets operational direction of Alarm2. Contact "↑" or "↓" key to display "INC" or "DEC".
[INC]
- "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.
A1 TYPE
- Contact "FUNC" key when a desired mode is displayed to set then enter the next mode.
[DEC]
- It is a mode that sets Dead band value for Alarm1 operation. Use "↑" or "↓" key to set a value.
A1 DBAND
- It is a function where Alarm1 operates at values above the sum of Alarm1 level and dead band values
[ 0]%F
and releases at values below Dead band value subtracted from Alarm1 level.
- When a desired alarm 1 dead band is displayed, press "FUNC" KEY to set it and enter the next item.
- 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 Alarm1 dwell time setting, press "↑" or "↓" key to increase or decrease in unit of 1 sec,
A1 TIME
respectively.
0 SEC
- When a desired Alarm 1 dwell time is displayed, press "FUNC" KEY to set it and enter the next item.
- Ex.) Alarm threshold value: 20% LEL / Delay time: When it is at 5 sec, Alarm triggers when the
measured value is above the set value based on 20%LEL for 5 sec or longer. When it goes down
below the set value within 5 sec, alarm is not triggered.
- It is a mode that sets Alarm2 level. Contact "↑" or "↓" key to increase or decrease Alarm2 level,
A2 LEVEL
respectively.
[ 40]
- When a desired alarm 2 threshold is displayed, press "FUNC" KEY to set it and enter the next item
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