✅ How do I Purchase Calibration Service?

Select if you have a single gas detector or multi gas detector:

  • Single Gas Detector Calibration (all the single gas detectors)
  • Multi Gas Detector Calibration (FD-600-4GAS, FD-4S, FD-4A, FD-60-4GAS

  • gas detector calibration

    ✅ What Is Gas Detector Calibration?

    • Gas detector calibration is a technical procedure performed every 6 to 12 months to ensure your device is functioning accurately.
    • Over time, gas detectors and their respective sensors degrade at different speeds. The only way to ensure accurate and repeatable measurements is through gas calibration.
    • Gas calibration involves exposing your detector to a traceable concentration of test gas.
    • In the USA, certified gas standards come from the National Institute of Standards and Technology (NIST). 

    ✅ How Often Must I Calibrate My Gas Meter? 

    We typically suggest 6 to 12 months.

    This time period is typical for gas detectors employing electrochemical or catalytic bead sensor elements.

    Calibrate more regularly if:

    • The user is employing the device as an analytical tool where accuracy is paramount.
    • The device is used in an extreme environment (temperature and humidity).
    • The user is performing an imminently dangerous application. Calibration and bump testing is mandatory since imminent injury or death will occur if the device fails.
    • Follow best practices and bump test regularly to ensure reliable operation.

     Who Can Calibrate My Gas Detector? 

    There are two options when it comes to gas detector calibration:

    • OPTION 1: Calibrate the device yourself. To help, we have a video library with step-by-step gas detector calibration tutorials for our products. Scroll down to find your product.
    • OPTION 2: Send it to us and we can calibrate your gas detector. The calibration services we offer include:

     What Equipment Do I Need to Calibrate My Gas Meter?

     To calibrate a gas detector, ensure you have the following:

    • Calibration cap: When required, calibration caps are included with the purchase of a detector.
    • Gas bottle: Recommended calibration gas bottles, click here.
    • Regulator: Recommended gas bottle regulator 0.5 - 1.0 LPM, click here.
    • Tubing: Recommend 1/8" ID silicone tubing, click here.
    • If you have a gas detector with a built in pump (FD-600, FD-311), then you will also need to purchase a T-piece to calibrate.

    ✅ What Is Bump Testing?

    • Bump testing is a procedure where the user exposes the detector to a small amount “blast” of target gas to ensure the detector operates and alarms as programmed.
    • The function of this test is to verify proper operation and build user confidence, particularly in hazardous applications.
    • It is recommended to bump test when first purchased, followed by weekly tests. This is especially important in LIFE THREATENING and / or DANGEROUS applications to verify detector operation. See video explanation here
    • Ozone bump testing is performed with a small ozone generator.
    • We do not offer bump gas for highly reactive gases such as ammonia, phosphine, nitrogen dioxide, and chlorine. In this case, we recommend purchasing 34 L calibration gas bottle to be used as bump gas.
    • Be aware of OSHA requirements regarding bump testing and calibration, see here.
    • Be aware of the International Safety Equipment Association (ISEA) requirements regarding bump testing and calibration, see here.

    ✅ How Do I Calibrate My Gas Detector?

    • Calibration procedures are highlighted in each product manual.
    • Calibration videos are also available on our YouTube channel. See the list below.
    • General gas calibration / bump testing procedures: click here.

     How is Ozone Calibrated?

    • Ozone (O3) is unique gas and cannot be calibrated with a calibration gas bottle setup like most gases.
    • Ozone is an unstable gas and therefore cannot be stored at a fixed concentration in a gas cylinder. Ozone must be generated on-site.
    • The generated ozone concentration must be calibrated to a NIST traceable source. Only a few laboratories in the USA have the expensive, NIST calibrated equipment necessary to perform ozone gas detector calibration. 
    • Our ozone NIST traceability procedure is highlighted here.
    • The same considerations apply for ozone bump testing. Ozone bump testing must be performed with a small ozone generator.  

     Model FD-90A

    Gases: CO, NO2, CO2, NH3, PH3, NO2, H2, CL2, EX CH4, H2S, SO2, O3, ClO2


     Model FD-90A-O2

    Gases: O2 (Example)

     Model FD-60

    Gases: CO, NO2, CO2, NH3, PH3, NO2, H2, CL2, EX CH4, H2S, SO2, O3, ClO2.

    FD-60-EX version is here.

     Model FD-60

    Gases: O2

     Model FD-4S

    Gases: CO, H2S, EX, O2

     Model FD-4A

    Gases: CO, H2S, EX, O2

     Model FD-600

    Gases: O2 (Example)

     Model FD-600

    Gases: CO, EX, H2, H2S, CO2, O3

     Model FD-103-CO-LOW

    Gases: CO (low level)


     Model FD-103-O2

    Gases: O2 (Example)


     Model FD-103

    Gases: CO, H2S

     Model CO2000

    Gases: CO2 (USB or AC110V)

     Model FD-90E (Yellow)

    Gases: CH4 (Example)

     Model FD-90E (Red)

    Gases: CH4 (Example)

     Model FD-311 

    Gases: Helium, Argon