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PROTÉGÉ ZM
PORTABLE, ZERO-MAINTENANCE, SINGLE-GAS MONITOR
MAINTENANCE
087-0047, Rev. G/December 2019
4-3
4.1.3. O
2
CALIBRATION USING THE FRONT BUTTON
1. Press and hold the front button for four (4) seconds.
2. CAL displays and the O
2
icon flashes.
3. After a successful calibration, the monitor emits one (1) beep, vibrates and the LEDs flash.
4. If unsuccessful, the monitor will not beep or flash and will continue displaying CAL.
If repeated calibrations fail, remove from service.
4.2. Self-test
Prior to daily use, the device prompts for a self-test. This ensures safe operation of the monitor.
During the self-test, the audio, visual and vibration alarms are activated and the sensor is tested.
details the self-test process.
WARNING: ONLY PERFORM
O
2
CALIBRATION IN NORMAL AIR (20.9% OXYGEN)
THAT IS FREE OF HAZARDOUS GASES.
WARNING: THE SELF-TEST DOES NOT REPLACE THE NEED TO BUMP TEST OR
CALIBRTATE, WHICH VERIFIES THE MONITOR’S RESPONSE TO GAS.
Table 4-1: Self-Test Procedure
LCD Display
Steps
When the TEST icon appears, a self-test is required.
Press the monitor’s button to perform the self-test.
This screen will appear. Ensure:
•
The monitor emits one audible beep
•
All LEDs light and monitor vibrates
•
All LCD display elements appear
•
Test icon flashes
Next, the LOW alarm and HIGH alarm set points are displayed.