Det-Tronics U9500 Infiniti Gas Transmitter - Manual (Page 21)

95-8444 19 10.1
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.
1. Enclosure is securely mounted and sensor is pointing
down. (PointWatch models must be mounted
horizontally. Refer to the PointWatch manual for
details.)
2. Ensure that local wiring and installation codes are
met.
3. Power wiring is installed and power source is
operational.
4. Wiring to external loads and/or monitoring devices is
properly connected.
5. If a sensor termination box is used, shielded
interconnecting wiring is correctly installed.
6. All cable shields are properly connected.
7. Optional sensor accessories (dust/splash guards,
sample draw devices, etc.) are installed, clean, and
in good condition.
8. O-ring is in good condition and the junction box
cover is tightly installed.
9. Monitoring devices and/or response equipment is
operational.
STARTUP PROCEDURE
1. Remove power from all output devices to prevent
actuation.
2. Apply power to the system. If the proper “type of
sensor” indication does not appear in the display
during warmup, consult the factory.
3. When the Warmup period is completed, perform the
Setup procedure.
4. Perform the Calibration procedure.
5. Restore power to the output devices.
SETPOINT DISPLAy mODE
In this mode, the display sequentially shows the
programmed alarm setpoints and calibration gas
concentration, then returns to the Normal operating mode
(see Table 9). Remove power from all output devices to
prevent actuation.
Table 8—Infiniti Modes of Operation (Continued)
Operating Mode Description
Manual Calibration Use the manual calibration mode when calibrating the Chlorine (Cl
2
) and Sulfur Dioxide (SO
2
) sensors.
• Manual Calibration must be selected during the initial set up of Infiniti.
• Manual calibration is similar to Auto Calibration, except that when the Zero and Span (calibration gas
concentration) readings are displayed and judged stable by the operator, they must be manually accepted
as calibration points by holding the Cal magnet to the CAL/RESET magnetic switch (or activate the external
reset input if “YES EXT CAL” was selected during the Setup procedure.)
Setup In the setup mode, the range (for some gases), alarm setpoints, calibration gas level, current loop levels,
relay operation (latching/non-latching, energized/de-energized), and calibration mode (auto/manual) are
programmed into the transmitter.
NOTE
When used with PointWatch only 50% LFL gas may be used for span concentration. PointWatch will not read
accurately if other concentrations are used.