RKI Instruments TAN-5000 Series - Manual (Page 27)

5 How to Operate 5-5. Description of operation
- 27 - TAN-5000
5-5. Description of operation
5-5-1. How to change alarm contacts
There are two types of alarm contacts: (1) Common first and second alarm contacts for gas alarm signals
from the indicator/alarm unit and (2) Common fault alarm contacts for fault alarm signals.
To change the settings of the contact specifications (such as the "a" or "b" contact), please contact RIKEN
KEIKI.
5-5-2. Maintenance mode
If the gas concentration reading exceeds the alarm setpoint of the indicator/alarm unit during the adjustment
or calibration of the detector head, the buzzer unit sounds the buzzer and activates the first or second alarm
contact. Use the maintenance mode to disable these operations.
Entering the maintenance mode
• Keep the reset switch pressed.
• The power switch starts blinking <<Maintenance Mode>>.
Exiting the maintenance mode
• Keep the reset switch pressed.
• The power switch remains lit <<Detection Mode>>.
WARNING
• When the buzzer unit enters the maintenance mode from the detection mode while an alarm is
activated, the alarm contact is released.
• After the adjustment is completed, do not forget to keep the reset switch pressed and return to
the detection mode. If the buzzer unit remains in the maintenance mode, it automatically returns
to the detection mode in ten hours.