RKI Instruments EAGLE 2 Manual - Manual (Page 143)

EAGLE 2 Operator’s Manual Channel Setup & Sub PCBs • 133
retained in place with a screw/flat washer/lock washer. Any sub PCB can be
installed in any of the sub PCB positions. A sensor that is supported by a sub
PCB connects to that sub PCB with a cable. There are four types of sub
PCBs, each supporting one type of optional sensor:
• The PID sub PCB supports a low range or a high range PID (photo
ionization detector) sensor.
• The ESM-01 sub PCB supports any of the ESM-01 family toxic
sensors.
• The TC sub PCB supports the EAGLE 2 TC (thermal conductivity)
sensor.
• The Infrared (IR) sub PCB supports any of the EAGLE 2 IR sensors
for combustible gas or CO
2
.
There are no user serviceable parts on the sub PCBs.
Channel Setup & Sub PCBs
When a sub PCB is installed in a particular location, it is reflected in the
CONFIGURE CHANNELS and CONFIGURE GASES menu items in Setup
Mode.
Sub PCBs and CONFIGURE CHANNELS
A channel configured as an optional sensor type supported by a sub PCB is
indicated by OP1, OP2, or OP3, specifying which sub PCB position is
mapped to that channel. OP1 indicates a channel supported by the SUB1
PCB, OP2 indicates a channel supported by the SUB2 PCB, and OP3
indicates a channel supported by the SUB3 PCB. The example LCD screen
below illustrates the first screen in the CONFIGURE CHANNELS menu
item in Setup Mode and shows a channel configuration for LEL catalytic,
oxygen, H
2
S, and a PID sensor with the sub PCB for the PID sensor installed
in location SUB1.
If you configure a channel as an optional type that is mapped to a sub PCB
position that has no sub PCB installed, the channel will be undefined and that
channel will indicate a sensor failure during the startup sequence. The
CONFIGURE CHANNELS
> CH1: CAT (CH4)
CH2: OXY (OXY)
CH3: H2S (H2S)
CH4: OP1 (PID)