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Activating the Detector
Activating the Detector
Attach all of the accessories prior to activating the detector (e.g., pump module, sampling probe, hose, etc.). For illustrations and procedures, refer to Attaching the Accessories.
To activate the detector, press 
in a normal atmosphere (20.9% oxygen).
Self-Test
Once the detector is activated, it performs several self-tests. Confirm the following tests occur.
Note
If an error message displays during the self-test, refer to Troubleshooting.
The detector performs a battery test during start-up.
If the battery has insufficient power to operate, the following screen displays before deactivating.
Replace the batteries and reactivate the detector.
1. All of the LCD elements display simultaneously as the detector beeps, flashes, vibrates, and briefly activates the backlight.
2. The version and serial number of the detector displays.
3. The date and time displays.
Datalogging Unit (Optional)
4. If the detector is a datalogging unit, it determines if
- a MultiMediaCard (MMC) or secure digital (SD) card is inserted,
- the detector can communicate with the card,
- the detector supports the size of the card, and
- the card requires formatting.
Note
If there is a problem with the MMC/SD, Datalogger disabled displays. The detector then automatically continues with the self-test.
If the card requires formatting, the following screen displays as the card is automatically formatted.
5. The detector then runs a self-test to verify the sensors and power supply.
Self-test Successful: If successful, the following screen displays.
Self-test Unsuccessful: If a sensor fails the self-test, a warning displays indicating which sensor(s) has failed.
6. If correction factors are set in the user options, the LEL or PID (custom) correction factors display.
7. The TWA, STEL, low, and high alarm setpoints then display in the following order.
Note
The alarm setpoints may vary by region. Refer to Resetting Gas Alarm Setpoints.
Pump Test (Optional)
8. If the pump module is attached to the detector, the following screens display.
When the following screen displays, block the pump inlet.
If the pump inlet is not blocked within 10 seconds or the pump test fails, the following screens display.
If 
is not pressed or the pump is not removed within 25 seconds, the detector performs the pump test again.
If the pump test is successful, the following screen displays and the self-test continues.
9. Unless disabled in user options, the oxygen (O2) sensor is calibrated automatically.
If the span is successful, the detector beeps twice.
Note
If the automatic O2 calibration feature has been disabled, Automatic O2 span disabled displays.
10. Lastly, the number of days remaining before calibration is due displays for all sensors.
If any sensor is past due for calibration, the name of the sensor and the number of days past due display.
Note
If any sensor is overdue,
displays continually until calibration is performed.
The self-test is now complete. If Due-lock is disabled, the detector enters normal operation.
Due-Lock Is Enabled
The Due-lock option is used to ensure that a passcode must be entered when calibration is past due, otherwise the detector automatically deactivates.
If no passcode is entered, or it is entered incorrectly, the following screen displays.
To enable this option, refer to Due-lock in the options menu. Also refer to PassCode Protect.
Force Calibration Is Enabled
If Force cal is enabled in the user options menu, calibration is mandatory before the detector enters normal operation. Refer to Force Calibration in Tech Mode to enable/disable, and refer to Calibration and Setting Alarm Setpoints for calibration procedures.
If is not pressed to start calibration, the following screen
displays and the detector deactivates.
Daily Bump
If the Bump Daily (Bmp daily) option is enabled from Tech Mode, the following bump test mandatory screen displays.
The mandatory daily bump test is applicable only to the LEL and O2 sensors. The bump test must be performed otherwise the detector will deactivate.
11. When the following screen displays, apply the test gas. Ensure the cylinder icon is flashing before applying gas.
Note
If the bump test is not performed, the detector deactivates.
Successful Bump Test: If the bump test passes, the following screens display.
The detector waits for the sensor(s) to clear (approximately 30 seconds) and then enters normal operation.
Unsuccessful Bump Test: If the bump test is unsuccessful or the bump test is not performed, the following screen displays and the detector deactivates.
Self-Test Pass
If the detector passes the self-test, it enters normal operation displaying the ambient gas readings.
The detector begins recording the maximum gas exposure (MAX) and calculating the short-term exposure level (STEL) and time-weighted average (TWA) exposures.
Self Test Fail
If a sensor fails, FAIL displays above that sensor on the normal operating screen. For possible reasons and solutions, refer to Troubleshooting.
Battery Test
The batteries are tested when the detector is activated and continuously thereafter. The battery power icon displays continually during normal operation. If battery power is low
flashes.
Datalogger Operation
Caution
Do not remove the battery pack while the detector is activated. Doing so will prevent the datalogger from logging correctly.
Datalogger operation is automatic and requires no settings. During normal operation the card is tested every 20 seconds.
Note
The MMC/SD icon
displays continuously on datalogger detectors when the card is inserted. The card is not required for operation of a detector equipped with datalogging.