Riken Keiki GD-3EC, Technical Manual

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7. Maintenance 7-3 Performing tests (test mode)
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5 Check to confirm that an alarm is triggered.
The first alarm is triggered when the reading reaches the first
alarm setpoint.
The alarm lamp (ALM1) lights up (red) when the first alarm is
triggered.
The second alarm is triggered when the reading reaches the
second alarm setpoint.
The alarm lamps (ALM1 and ALM2) light up (red) when the
second alarm is triggered.
6 Once the alarm test is complete, press the MENU/ESC key.
Returns to the [2-0.1] display.
Alarm lamp
(ALM1)
Alarm lamp
(ALM2) Alarm lamp
(ALM1)