RKI Instruments EAGLE 2 Manual - Manual (Page 149)

EAGLE 2 Operator’s Manual PID Relative Response Feature • 139
state, the alternating numbers will be replaced by a gas reading. If the
sensor doesn’t exit its warm up state after 5 minutes, see
“Troubleshooting” on page 160.
• If using a probe, be sure to use the PID probe that does not have a particle
filter installed. If it is necessary to use a sample hose for any reason, you
must use the teflon lined hose that is supplied with the PID instrument. A
5 foot hose is supplied as standard. 10, 15, and 20 foot hoses are also
available. See the Parts List at the end of this appendix for ordering
information.
• If your EAGLE 2 is a multigas unit that is used for monitoring of
combustible gases in the %LEL range, the PID channel will indicate an
upscale reading if these gases are present. If %LEL concentrations of
combustible gas are present, the PID channel may indicate an overscale
reading.
• The PID sensor will also respond to H
2
S, so if H
2
S is present, the PID
channel may indicate an upscale reading depending on the concentration
present.
The standard calibration for a PID channel is to isobutylene. A PID channel
can be factory setup for and calibrated to other gases. Consult RKI
Instruments, Inc. for other available PID configurations and to specify the
desired PID configuration when a unit is ordered. The display screen below
illustrates an EAGLE 2 with a low range PID sensor installed.
It is possible to temporarily configure a PID channel for a target gas other
than the factory setting in Display Mode. See the next section, “PID Relative
Response Feature”, for instructions to use this feature.
PID Relative Response Feature
The relative response feature enables you to change the PID sensor’s
response to gas on the fly so that the PID channel is roughly calibrated to an
alternate gas. This is done by temporarily changing the gas configuration of
the PID channel. You can select from a list of gases whose response relative
to the configured gas, normally isobutylene, is programmed into the EAGLE
2’s memory. For example, if the PID channel is setup for and calibrated to
IBL 0.00ppm