GfG G450 Gas Detector

GfG G450 PN: 

GfG G450 Calibration Gas PN: CG-Q58-4

GfG G450 Calibration Gas:
20ppm Hydrogen Sulfide
200ppm Carbon Monoxide
50% LEL Methane
18.0% Oxygen
Nitrogen Balance

GfG G450 Calibration Guide:

Want to calibrate the GfG G450? Here's how:

  1. Turn the GfG G450 on in normal reading mode. Do this by pressing and holding the button on the right.

  2. Once GfG G450 is in normal reading mode, you need to send it into calibration mode. Do this by pressing and holding the middle button and then pressing the button on the right.

  3. Pres the left button to send the monitor into fresh air calibration mode. Now is a good time to set the monitor down, and grab your calibration gas, regulator, and calibration adapter.

  4. Screw in the calibration adapter to the front of the monitor. Once it is screwed in, the monitor will beep and display the auto-calibration screen.

  5. Press the center button to select gas calibration. It will display "make sure that gas is applied".

  6. Open the valve on your regulator. This is a very important step so you do not ruin your calibration gas cylinder. Now screw it in to your calibration gas cylinder. Close the regulator once you hear gas spewing out of it. This is the signal to know your regulator is good to close. Continue screwing in the regulator until it stops. Do not overturn it.

  7. Attach the tubing to the hose barb on your regulator. Make sure the tubing is also connected to your calibration adapter.

  8. Press the right button on the monitor to select "yes" and open the regulator. Once the timer finishes it will start calibrating.

  9. Once the calibration is finished, make sure your calibration gas values on the screen match what is on your calibration gas cylinder. Press the right button to save the calibration.

  10. Close and unscrew the regulator and unscrew the calibration adapter from the monitor.

  11. Congratulations! You have officially calibrated your GfG G450 gas monitor. Make sure to record these readings in your calibration log!

Helpful Part Numbers:

  • GfG G450 Replacement O2 Sensor - 1450001
  • GfG G450 Replacement H2S Sensor - 1450003
  • GfG G450 Replacement CO Sensor - 1450004
  • GfG G450 Replacement LEL Sensor - 1450005