"!
WARNING
Do not let the cover remain off of an explosion-proof Ultima
Gas Sensor. Since a source of ignition is exposed, an
explosion may occur if a metal object contacts the circuitry
and produces sparks in an atmosphere of combustible gas.
For Oxygen Models
Fifty feet of four-conductor cable is supplied with the unit. This
cable has a connector on one end which plugs into its mate
within the Ultima Gas Monitor/Less Sensor. The other end of the
cable can be cut to the exact length needed. Do not run more
than 50 feet of cable or splice on any additional cable.
Conduit may also be needed in areas where large amounts of
electrical noise is expected.
At the Ultima Gas Monitor/Less Sensor Location
If your installation is in an explosion-proof classified area, see
FIGURE 1-24. Appropriate wiring conduit must be used between
the Ultima Gas Monitor and the Ultima Remote Sensor. The
cable must be routed through the conduit.
If your installation is in a general-purpose area, you can use a
sensor cable grip. Follow your local electrical wiring codes. Cut
the wire to the proper length needed for your installation. Then,
trim back the insulation, shield and the un-insulated wire. Note
that there are four wires needed out of the six within the cable.
Figure 1-24.
Oxygen and Toxic Ultima Gas Monitor Less Sensor
Chapter 1, Set-up
1-22
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