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7-4. Operation - Test Mode
Setting
Press the TEST switch with the test stick to enter the test mode.
Each press of the recessed TEST switch will turn on and off the test mode. The test mode will
automatically end in10 minutes.
Operation
“TEST” will be shown on the LCD.
While in test mode, it is possible to change the analog output (4-20mA) to a desired value in
0.16mA increments (1% of the full scale value). Increase or decrease the analog output value by
pressing the UP or DOWN button.
While in test mode (alarm test using TEST switch), the gas alarm contacts activate. If
the gas alarm contacts are used to operate the interlocks of the external devices,
release the interlocks beforehand, as needed to prevent a possible activation of the
interlocks during the test mode, or
enter the maintenance mode before entering the test mode, then release the interlocks
of the external devices beforehand as needed. (Refer to 7-
5. “Operation - Maintenance
Mode” for more information).
Notify those concerned before starting the gas alarm test.
While in maintenance mode, the status information of gas/trouble alarms is sent to the
host system (e.g. control room) digitally. If the gas alarm contacts/trouble alarm open
collector are used to operate the interlocks of the external devices, release the
interlocks beforehand, as needed to prevent a possible activation of the interlocks
during the maintenance mode.
Increase/decrease the analog output value
using UP/DOWN button.
Turn on/off TEST switch with test stick.
