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GTC-520A
Instruction Manual
- Mode setting for operation of outside warning light at the desired Alarm.
- When "FUNC" S/W is pushed, the setting function for Alarm Lamp is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- Set by pushing "UP" S/W and "DOWN" S/W and using "FUNC" S/W in the desired Alarm.
- Basic value is designated as "ON".
- If Alarm sounds when Alarm Lamp is turned ON , the warning light is in lighted state, while the
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warning light is in blinking state when the lamp is turned OFF.
- If "FUNC" S/W is pushed when the desired ALP value is displayed, the ALP value is set and the
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next item is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- The message for setting function of Alarm1 value as a function for setting Alarm 1 value is
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displayed as "AL-1".
- When "FUNC" value is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- Function to change the setting value for Alarm 1. The maximum value is possible up to the
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High Scale value, and Alarm1 value is increased or decreased whenever "UP" S/W or "DOWN"
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S/W is pushed.
- If "FUNC" S/W is pushed when the desired Alarm1 value is displayed, the Alarm1 value is set
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and the next item is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- (Basic value : Alarm1 = 20(F/S 20%), Alarm2 = 40(F/S 40%), Alarm3 = 50(F/S 50%))
- Alarm level is set for the concentration specified in domestic regulations upon product shipment.
- Mode for setting the operation direction of Alarm1, and "1H" or "1L" is displayed whenever "UP"
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S/W or "DOWN" S/W is pushed .
- "1H" mode operates when Gas value is larger than or the same as Alarm1 setting value, while
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"1L" mode operates when Gas value is smaller than or the same as Alarm1 setting value.
- If "FUNC" S/W is pushed when the desired mode is displayed, the mode is set and the next item
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is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- Mode for setting of Dead band value with operation of Alarm1. The value is increased or
decreased whenever "UP" S/W or "DOWN" S/W is pushed. (Basic value 0)
- Function where Alarm1 operates at more than Alarm value plus Dead band value, while Alarm1
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is cleared at less than Alarm value minus Dead band value when Alarm1 is in "1H" mode.
- Function where Alarm1 operates at less than Alarm value minus Dead band value while Alarm1 is
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cleared at more than Alarm 1value plus Dead band value when Alarm1 is in “1L’ mode.
- If "FUNC" S/W is pushed when the desired Alarm1 dead band value is displayed, the value is
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set and the next item is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- Function for setting of Alarm1 delay time.
- Function to prevent occurrence of instantaneous malfunction of the detector due to the effects
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of external impact and noise rather than normal operation.
- When "FUNC" S/W is pushed, the setting function for Alarm1 delay time is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- For change in Alarm1 delay time, the Alarm1 delay time is increased or decreased by the unit
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of sec "whenever "UP" S/W or "DOWN" S/W is pushed. (Basic value 1)
- Ex) When alarm setting value: 20%LEL/delay Time: 5sec, alarm occurs when the measured
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value of more than the alarm setting value based on 20%LEL exists for more than 5sec, while
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the alarm does not occur when it falls below the alarm setting value within 5 sec.
- If "FUNC" S/W is pushed when the desired Alarm1 delay time is displayed, the Alarm1 delay
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time is set and the next item is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
- Function for setting of Alarm1 contact output.
- When "FUNC" S/W is pushed, the setting function for Alarm1 contact output is entered into.
- When "RESET" S/W is pushed, Alarm Setting Mode is returned to.
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6. How to operate
6. How to operate
