Description; Methods Of Sampling - Honeywell IQ Force Operation Manuals

1.

Description

The Honeywell Analytics IQ Force is a multi-
sensor gas detector that can be configured to
meet a wide variety of user requirements. This
section provides an overview of many of the
features of the IQ Force. More detailed de-
scriptions of the specific features of the IQ
Force are contained in the User Manual.
Read and understand this
manual and the User Manual before using
the IQ Force.
1.1

Methods of sampling

The IQ Force may be used in either diffusion
or sample-draw mode.
In either mode, the
gas sample must
reach the sensors for
the instrument to reg-
ister a gas reading.
The sensors are lo-
cated at the bottom of
the instrument. There
are three distinct sen-
sor ports that allow the sample to reach the
individual sensors.
The sensor ports must be
kept free of obstruction. Blocked sensor
ports can lead to inaccurate and potential-
ly dangerous readings.
In diffusion mode, the atmosphere being
measured reaches the sensors by diffusing
through the vents at the bottom of the instru-
ment. Normal air movements are enough to
carry the sample to the sensors. The sensors
react quickly to changes in the concentrations
of the gases being measured. Diffusion-style
operation monitors only the atmosphere that
immediately surrounds the detector.
The IQ Force can also be used to sample re-
mote locations with the hand-aspirated sam-
ple-draw kit or with a motorized continuous
sample-draw pump (both available separate-
ly). During remote sampling, the gas sample is
drawn into the sensor compartment through
the probe assembly and a length of tubing.
Remote sampling operations monitor only the
atmosphere at the end of the sample-draw
probe.
Use of the hand-aspirated sample-draw kit
and the motorized sample-draw pump is
covered in the User Manual.
Note: It is necessary to verify the accuracy
of the IQ Force by calibration with known
concentration test gas whenever a change
is made to the sensors installed in the in-
strument.
Calibration procedures are discussed in
detail in the User Manual.
calibrated or is found to be out of toler-
ance must be replaced immediately. An
instrument that fails calibration may not be
used until testing with known concentra-
tion test gas determines that accuracy has
been restored, and the instrument is once
again fit for use.
able gas detectors have been designed for
the detection of deficiencies of oxygen,
accumulations of flammable gases and
vapors, and accumulations of specific tox-
ic gases. An alarm condition indicating the
presence of one or more of these potential-
ly life-threatening hazards should be taken
very seriously.
condition, it is important to follow estab-
lished procedures. The safest course of
action is to immediately leave the affected
area, and to return only after further test-
ing determines that the area is once again
safe for entry. Failure to immediately leave
the area may result in serious injury or
death.
1
A sensor that cannot be
Honeywell IQ Force port-
In the event of an alarm