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GTD-2000ExW
Instruction Manual
7.3. ALARM MODE
PASSWORD
[**]
Contacting "FUNC" key for 2 sec or longer in Measuring Mode enters Password mode.
After setting Password using "↑" or "↓" key, contact "FUNC" key.
ALARM
MODE
Contact "↑" or "↓" key to select "Alarm Mode".
Contact "FUNC" key when "ALARM MODE" is displayed to enter Alarm setting mode.
Contact "RESET" key to return to Measuring Mode.
ALM USED
[ ON]
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 can
be performed.
GTL-100 explosion-proof warning light can only be used when it is ON.
Contacting "FUNC" key enters the next mode.
AL LATCH
[ ON]
It is a mode that sets Reset method after running of Alarm1. Contact "↑" or "↓" key to change "ON" and "OFF".
"OFF" sets to automatically reset the alarm. "ON" set to reset the alarm only when Reset key is pressed.
Contact "FUNC" key when a desired mode is displayed to set then enter the next alarm setting mode.
A1 LEVEL
[ 20]
It is a mode that sets Alarm1 level. Contact "↑" or "↓" key to increase or decrease Alarm1 level, respectively.
When a desired alarm 1 threshold is displayed, press "FUNC" KEY to set it and enter the next item.
A1 TYPE
[INC]
It is a mode that sets operational direction of Alarm1. 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.
A1 TYPE
[DEC]
A1 DBAND
[ 0]%F
It is a mode that sets Dead band value for Alarm1 operation. Use "↑" or "↓" key to set a value.
It is a function where Alarm1 operates at values above the sum of Alarm1 level and dead band values 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.
A1 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 Alarm1 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: 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.
A2 LEVEL
[ 20]
It is a mode that sets Alarm2 level. Contact "↑" or "↓" key to increase or decrease Alarm2 level, respectively.
When a desired alarm 2 threshold is displayed, press "FUNC" KEY to set it and enter the next item.
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.
7. System Mode
