BW GasAlertMicroClip XL – How to Manually Calibrate
In this expert guide from Frontline Safety, we're going to take you through the correct steps when manually calibrating the BW GasAlertMicrClip XL (shop here). We've also got a video guide for you to follow, which you'll find below.
For proper calibration of the unit you require:
- calibration gas. In this instance we're using a mix of 25 ppm h2s, 100 ppm co, 2.2% ch4 and 18% o2 in a balance of Nitrogen. Click here to see the range we have in stock
- calibration cap. This is supplied in the box with the detector
- suitable regulator
- calibration tubing
Make sure you’re calibrating in a safe area that is free of hazardous gas in an atmosphere of 20.9% oxygen.
Watch our video walkthrough of the process here.
When the monitor is turned on and performs the self-checks, you’ll be able to see that a CAL DUE screen. This will show how many days are left until the next calibration is required. To get into the calibration menu press and hold the power button down whilst the detector performs the OFF countdown.
Continue holding the button whilst the LCD briefly turns off. It will then activate again and perform a CAL countdown.
Keep holding the button down until this countdown is complete and the unit has entered calibration mode.
An AUTO ZERO symbol will flash whilst the detector zeroes all of the sensors and calibrates the oxygen sensor. If the sensor fails to auto-zero then it cannot be calibrated. When the Auto Zero is complete the LCD screen will show APPLY GAS.
When the AUTO SPAN message appears with the flashing bottle symbol then it’s time to connect the cylinder.
If you haven’t done so already then connect the calibration cap to the unit, along with the regulator, tubing, and cylinder. Then it's a case of turning the regulator on and allowing the gas to reach the sensors.
After a sufficient amount of gas has been detected then the detector will beep and the bottle symbol will appear. AUTO SPAN will flash until the unit has completed the calibration.
The LCD will now display CAL DUE and the number of days left before calibration is due for each sensor.
Keeping your gas detectors properly maintained is absolutely vital to ensure the safety of those relying on them. Click here to read more about calibration.