RKI Instruments GD-70D Series - Manual (Page 32)

3 How to Operate 3-3. How to exit
GD-70D - 32 -
3-3. How to exit
To turn off the detector, open the switch cover on the bottom of the main unit, and turn "OFF" the power switch.
Then, turn off the power supply (24 VDC) to the detector.
3-4. Basic operating procedures
Normally, the detection mode is activated after the power is turned on.
WARNING
• When the detector is turned off, an alarm may be activated on the upper (central) system.
Before turning off the detector, the inhibit (point skip) on the upper (central) system must be activated.
Decide whether the power can be turned off by checking the operation of the devices connected to
the external output or external contact output terminal of the detector.
• If the alarm contact is energized (option), it is activated when the detector is turned "OFF".
• If the gas to be detected has an adsorptive feature, the detector must be cleaned thoroughly with
fresh air before turning "OFF" the detector.
<<Detection Mode>>
PW A1 A2 F LCD
● ○ ○ ○ 0.0ppm
SIH4
<<Maintenance Mode (user mode)>>
PW A1 A2 F LCD
● ○ ○ ○ 1- 1
ZERO
MAINTENANCE
<<Maintenance Mode (regular maintenance mode)>>
PW A1 A2 F LCD
● ○ ○ ○ 2- 0
GAS TEST
MAINTENANCE
<<Gas Alarm Test Mode>>
PW A1 A2 F LCD
● ○ ○ ○ 0.0ppm
TEST OFF
MAINTENANCE
<<Fault Alarm Status>>
PW A1 A2 F LCD
● ○ ○ ● E-5
FLOW
<<Gas Alarm Status>>
PW A1 A2 F LCD
● ● ○ ○ 6.0ppm
SIH4
MODE
(long pressing)
TEST
(long pressing)
The detector is
restarted after
recovering from
Fault.
MODE
(long pressing)
PW:POWER
A1:ALM1
A2:ALM2
F:FAULT ● :Lamp on
○ :Lamp off