Iq force™ Gas Detector Reference Manual


Possible causes and solutions



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Possible causes and solutions
1. The atmosphere in which the instrument is located is contaminated or was contaminated at the time the instrument was last fresh air calibrated. Anew sensor has just been installed.

IQ Force™ Gas Detector Reference Manual
29
Fresh Air/Zero Calibration
3. Instrument has been dropped or otherwise damaged since last turned on. There has been a significant change in temperature since the instrument was last used.
Recommended action:
Take the instrument to fresh air and allow readings to stabilize. Perform the fresh air/zero adjustment again. If the fresh air/zero procedure fails to correct the problem, perform the manual fresh air/zero calibration procedure as described in Section 4.2.2
below.
4.2.2 Manual fresh air/zero calibration
The IQ Force includes safeguards to prevent fresh air calibration in contaminated environments. If the standard fresh air/zero calibration fails a second time, the instrument maybe forced to accept the fresh air calibration by performing the manual fresh air/zero calibration.


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
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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