Iq force™ Gas Detector Reference Manual



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1.2 Multi-sensor capability
The IQ Force can be configured to simultaneously monitor oxygen, carbon monoxide, hydrogen sulfide, and combustible gases and vapors. All sensors are replaceable in the field. Each of the IQ Force’s sensor channels is configured fora specific type of sensor.
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 instrument. Calibration procedures are discussed in detail in Section The IQ Force uses toxic gas sensors that have been designed to minimize the effects of common interfering gases. These sensors provide accurate, dependable readings for toxic gases commonly encountered in industrial applications. Different measurement units are used depending on the gas being measured as noted below.
Table 1. Units of Measurement
Type of Hazard
Measurement unit
Oxygen (O
2
)
Percentage by volume
Combustible gas
Percentage of lower explosive limit (%LEL) or Volume percentage methane (%CH
4
)
Carbon Monoxide (CO, Hydrogen Sulfide (H
2
S)

Iq force™ gas detector
Contacting honeywell analytics
Technical services
Appendix a toxic gas measurement – warning, danger, stel,
Appendix d toxic sensor cross-sensitivity .............................. 52
Operating temperature
Multi-sensor capability
Table 2. alarm logic
Iq force portable gas detectors have been designed for the
In the event of an lel over-range alarm, the iq force must be
A sensor that cannot be calibrated or is found to be out of toler-
Do not use the pump for prolonged periods in an atmosphere
Case: the instrument is enclosed in a solid pc (polycarbonate) case with tpe (rubber) overmold.2. front face:
On/off mode button:
Battery charger connector:
Turning the iq force on
Notethe bump test interval and bump test due reminder are
Notesample probe assembly and tubing must be attached when
Always verify that all sensors present in the instrument are
Turning the iq force off
The iq force is designed to detect potentially life threatening
The iq force must be located in a nonhazardous location during
A combustible sensor over-range alarm indicates a potentially
Pc connection via infrared port
Error messages
Manual sample-draw kit
Motorized sample-draw pump
The canadian standards association (csa) requires the lel
Calibration/accuracy verification
Figure 1. bump test/span calibration setup
Fresh air/zero calibration
Possible causes and solutions
Fresh air/zero calibrations may only be performed in an
Span calibration
Noteonce the calibration cycle is completed, the iq force will
Possible causes of span calibration failure and remedies:
A sensor that cannot be calibrated or is found to be out of
Noteto enable the h
Notehoneywell analytics recommends regular verification of
Notethe bump test interval and bump test reminder are used
Toxic gas measurement – warning, danger, stel, and twa alarms
A.2 time weighted average (twa)
Appendix b calibration frequency rec-
Verification of accuracy & related terminology
Lengthening the intervals between calibration checks or bump tests
One button automatic full calibration and calibration docks
Iq force sensor information



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