Iq force™ Gas Detector Reference Manual

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2.5.2 Danger Alarms
A Danger Alarm indicates a significantly hazardous condition. As is the case with the warning alarms, the danger alarm levels are shown in the start up sequence.
2.5.3 STEL Alarms
STEL (Short-Term Exposure Limit) alarm values represent the average concentration of instrument readings for the target gas for the most recently completed 15 minutes of operation.

IQ Force™ Gas Detector Reference Manual
2.5.4 TWA Alarms
TWA (Time-Weighted Average) values are calculated by taking the sum of exposure to a particular toxic gas in the current operating session in terms of parts-per-million-hours and dividing by an eight-hour period.
2.5.5 Low battery alarms
When there is approximately 25% battery charge left, the battery icon on the LCD will appear empty, which means that a low-battery condition exists.
If the battery icon is empty, leave the area immediately, proceed to an area that is known to be safe (containing fresh air with no contaminants and no combustible gases) and recharge the battery.
Once there is 15 to 30 minutes of battery charge, the IQ Force will go into a minute battery alarm. The warning alarm will sound and the screen will display a flashing empty battery icon, along with the warning and alarm icons. The user will need to acknowledge the low-battery condition by pressing the MODE button before the instrument will resume monitoring. Once the MODE button is pressed, the empty battery cell and the caution icon will flash. After 15 minutes, the warning will sound again to indicate that there is now at most an additional 15 minutes of battery life left. Once the second minute period has elapsed, the instrument will go into alarm for the last time, notify the user that it is shutting itself down with a second countdown, and then proceed to turn itself off
Li-Ion battery charging instructions are contained in Section 5.3

Iq force™ gas detector
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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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