RKI Instruments TAN-5000 Series - Manual (Page 24)

5 How to Operate 5-4. Description of operation
TAN-5000 - 24 -
5-4. Description of operation
5-4-1. Common first and second alarm activation
(1) Self-latching type
The indicator/alarm unit outputs a gas alarm signal when the reading exceeds each of the gas alarm
setpoints. The buzzer unit, when receiving this signal, sounds the buzzer and activates the common
first and second alarm contacts.
The buzzer and the common first and second alarm contacts are the self-latching type. Press the reset
switch to stop the buzzer sound and reset the common first and second alarm contacts.
(2) Lock-in type
The indicator/alarm unit, outputs a gas alarm signal when the reading exceeds each of the gas alarm
setpoints. The buzzer unit, when receiving this signal, sounds the buzzer and activates the common
first and second alarm contacts.
The buzzer and the common first and second alarm contacts are the self-latching type. Press the
buzzer stop switch to stop the buzzer sound. The reset switch is effective if the reading is less than the
alarm setpoint after the buzzer stop switch is pressed. It resets the common first and second alarm
contacts.
5-4-2. Common fault alarm activation
The indicator/alarm unit outputs a fault alarm signal when the self-diagnostic function discovers a fault.
The buzzer unit, when receiving this signal, activates the common fault alarm contact <<Auto-Reset>>.
The common fault alarm contact is automatically reset after the system recovers from the fault status.
NOTE
The buzzer does not sound when a fault alarm is triggered <<Standard Setting>>.
To enable sounding of the buzzer when a fault alarm is triggered, please contact RIKEN KEIKI.