To determine your sensor type and options, check the shipping carton.
Checked items are included in the carton. The carton label identifies:
• Type of unit supplied (Gas Monitor, Gas Monitor Less Sensor, or
Remote Sensor Module)
• Type of gas (combustible gas, toxic gas or oxygen)
• Range [% LEL, PPM (parts per million), or %]
• Output (2- or 3-wire, 4 to 20 mA, or 4 to 20 mA with HART)
• Any options such as internal relays and/or LEDs.
• If your unit contains internal relays, see Appendix A.
Also check the sensor ID label located on the inside of the sensor. This
can be viewed by unscrewing the lower portion of the sensor. If
performing this while the unit is powered, see the following Warning.
The sensor ID label identifies the detectable gas and the gas range.
For Ultima XE sensors marked Class I, Groups A, B, C and D
and not used in Class II areas, unscrew sensor cap at least
three full turns (but no more than four full turns from its
tightly-closed position), wait 10 seconds, and then remove
cap completely. Failure to follow this warning can result in
the ignition of a hazardous atmosphere.
For the Ultima XE Sensor marked Class II Groups F and G,
atmosphere must be free of dust and the power removed
from the unit before the sensor cap can be removed from the
housing. Failure to follow this warning can result in the igni-
tion of a hazardous atmosphere.
"
WARNING
Figure 1-6. Explosion-Proof XIR Remote Sensor Module
1-4
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