Det-Tronics MOS H2S Gas Sensor User Manual
Page 17
95-8532
1.4
15
INSTALLATION CHECKLIST
The following checklist is provided as a means of checking
the system to be sure that all phases of system installation
are complete and have been performed correctly.
Enclosure is securely mounted and sensor is pointing
1.
down.
Ensure that local wiring and installation codes are
2.
met.
Power wiring is installed and power source is
3.
operational.
Wiring to external loads and/or monitoring devices is
4.
properly connected.
All cable shields are properly connected.
5.
Optional sensor accessories (dust/splash guards,
6.
sample draw devices, etc.) are installed, clean, and
in good condition.
O-ring is in good condition and the junction box
7.
cover is tightly installed.
Monitoring devices and/or response equipment is
8.
operational.
STARTUP PROCEDURE
Remove power from all output devices to prevent
1.
actuation.
Apply power to the system. If the proper “type of
2.
sensor” indication does not appear in the display
during warmup, consult the factory.
When the warmup period is completed, perform the
3.
Setup procedure.
Perform the Calibration procedure.
4.
Restore power to the output devices.
5.
SETPOINT DISPLAy MODE
In this mode the display sequentially shows various
operating parameters, including programmed alarm
setpoints and calibration gas concentration, then returns
to the Normal operating mode (see Table 5). Remove
power from all output devices to prevent actuation.
Table 5—Setpoint Display Cycle
Display Indicates
Description
Normal Mode
To enter the Setpoint Display mode, activate the CAL/RESET magnetic switch for 2 to 3
seconds (hold the Cal magnet to the side of the transmitter enclosure next to CAL/RESET). If
“EXT CAL YES” was selected during the “Setup Procedure,” the external reset input can also be
used to initiate the Setpoint Display Cycle when activated for 2 to 3 seconds.
Low
Low alarm setpoint is indicated.
High
High alarm setpoint is indicated.
Auxiliary
Auxiliary alarm setpoint is indicated.
Span
This number indicates the relative sensitivity of the sensor.
Gain
For factory use only.
GTBL
For factory use only.
Ver
Firmware version.
Cal
Calibration gas concentration is displayed.
Normal Mode
Remains in Normal mode until another mode is activated.