Honeywell Gas Detectors BWC4-B-N and BWC4-Y-N. It’s On.

Despite my doodle, gas leaks are very serious. Some of you deal with them on a daily basis and you take every precaution to protect yourself against them. Today I wanted to look into the Honeywell Multi-Gas Detectors. No charging, no maintenance, and no hassle. Just clip it to your belt and get to work, because for two years, you know – “it’s on.”

The BW Clip4 (BWC4) monitors 4 types of gas:

  • H2S
  • CO
  • Combustible
  • Oxygen

If any of the four gas readings pass a certain threshold, the alarm will activate. The alarm will alternate between 3 lights, one on the left, top and right. Also an audible alarm will sound as well as vibrate. You’ll definitly know if you’re standing in a non smoke area!

Once you turn this on, it stays on… For two years! It boots up after you press the MENU button and then you’ll see the BW Clip4 run through it’s tests and stabilization. When the little heart beat appears, your good to go.

Navigating your BW Clip4 is pretty standard. You have a big menu button, double click it to enter. Just keep pressing the button to scroll through your screen options, Info, Bump Test, Auto Zero, Calibration, and Exit.

If you’d like to access the INFO screen, just press and hold the menu button for 3 seconds. This will display the peak readings and you can keep pressing the menu button to scroll through various INFO screens.

  • TWA Cumulative Averages
  • STEL Cumulative Averages
  • Options to Reset or Not Reset
  • Calibration Due Date
  • TWA Alarm Set Points
  • STEL Alarm Set Points
  • Low Alarm Set Points
  • High Alarm Set Points
  • Firmware Revision
  • Bump Test Due Date

Use Auto Zero to re-base the sensor if anything’s changed from the environment they’ve been working in. Obviously, you’d want to utilize this feature when you’re in clean air. You’d want to run this procedure every time you head to another job site.

Pretty important feature of a detector… The Bump Test is there to make sure your alarms are working. The alarms will sound and you’ll need to confirm that the device is working properly.

After that, it will ask you to apply gas. Attach the Calibration Cap to the unit, it’ll click in place. Set the unit next to an open valve and turn the gas on. You’ll notice the unit will start showing span value as it runs through the process. It’ll prompt you to shut the gas off when testing is complete, remove Calibration Cap, and once gas clears from the unit, it will return to the main screen. Bump Test complete.

Calibration is a mix of Auto Zero and the Bump Test. Re-calibration would need to set to zero in clean air and you’ll then use the Calibration Cap and test next to an open valve.

Gases are very important to any job site. If we use the proper equipment and safety measures, we’ll have nothing to worry about. Be sure to visit Ohio Power Tool today and purchase the Honeywell BW Clip4 Gas Detector. You can buy one for only $562.50 in black or yellow, check the links below.



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