RKI Instruments SDM-E2 - Manual (Page 89)

Appendix A: Bump Testing and Calibrating EAGLE 2s with IR Sensors • 84
An IR sensor that can be bump tested or calibrated with one or more of the standard
4 sensors (catalytic LEL, oxygen, H
2
S, or CO) using a 3-gas or a 4-gas cylinder will
be assigned to GAS 1, except for an IR HC sensor that has been given a custom
name. If only an IR sensor is installed in an instrument, it will be assigned to GAS 1.
Generally, if there are 2 IR sensors installed in one EAGLE 2, the first channel listed
will be assigned to the GAS 1 port and the second channel listed will be assigned to
the GAS 2 port. If an LEL only or autoranging range of an IR CH4 or an IR HC sensor
(without a custom name) is installed, that sensor will always be assigned to GAS 1
regardless of its place in the channel order.
Multiple IR Sensors
IR CO2 (any range) + IR “HC” (LEL only or autoranging) IR CO2: GAS 2
IR “HC”: GAS 1
IR CH4 (volume only) + IR “HC” (LEL only or autoranging) IR CH4: GAS 2
IR “HC”: GAS 1
IR CH4 (volume only) + IR “IBU” (LEL only or autoranging) IR CH4 vol only: GAS 2
IR “IBU”: GAS 1
IR CH4 (volume only) + IR “custom name” (LEL only or
autoranging)* IR CH4 vol only: GAS 1
IR “custom”: GAS 2
IR CH4 (volume only) + IR CH4 (LEL only or autoranging) IR CH4 vol only: GAS 2
IR CH4 LEL/auto: GAS 1
IR CH4 (volume only) + IR CO2 (any range) IR CH4: GAS 1
IR CO2: GAS 2
* Depending on special requirements, your infrared hydrocarbon channel’s gas name may be
something other than “HC” or “IBU”.
Table 8: Default Gas Port Assignments for IR Sensors
EAGLE 2 Gas Combination
IR Sensor Gas Port
Assignment