Portable Detectors

  How do I request an “Activation Code” for my software?

You will need your initial code found on the activation page of the software, your order number for the license, contact details. Once you have this information then please contact customer support.

  Why isn’t my Gas-Pro charging?

The Gas-Pro is most likely charging, if the Gas-Pro has gone into deep discharge the display will not show the instrument charging symbol until it has been charging for 10+ minutes and the button has been pressed after this time. You will then see the charging symbol and the red LED flash.

  How do I functionally check my Portable Gas detector?

Crowcon offer a number of functional test options form simple spray gases to automated systems see GEN072 – Bump Testing Equipment for Portables – Issue 2, for further details.

  How often do I need to bump test my instrument?

Please see technical note GEN078 – Bump Test Requirements.

  What gas should I use to bump test my instrument?

Please see GEN072 – Bump Testing Equipment for Portables – Issue 2 for details of bump test equipment and default gas concentrations.

  Can a Clip SGD be activated after its ‘activate by’ date?

The SGD will turn on, but for safety reasons it is not recommended to activate an SGD after its activate by date as both the sensor and battery life will be compromised. The warranty will also be invalidated if an SGD is activated after the specified date.

  I have a Portable gas detector calibrated for Methane, but I want to detect Ethanol, is my detector suitable?

It’s unlikely if it’s a standard Methane detector. Most portable Pellistor detectors have a filter fitted to them to protect them from poisoning, as well as dirt or dust getting into the sinter. This filter will block or slow down response to vapours like Ethanol. An unfiltered version of the sensor is available for some products. Always specify the target gas when ordering a Portable detector for flammable gases. For specific advice please contact us.

Fixed Detectors

  If I have a flameproof fixed detector (Ex) can I make it “intrinsically safe” (IS) by using a zener barrier or galvanic isolator?

No, a flameproof detector’s “safety protection” cannot be changed by using a zener barrier or galvanic isolator of any sort. It can only be used as a flameproof device. See our blog article on I.S. barriers for more information.

  If I have a “intrinsically safe” (IS) fixed detector do I need a zener barrier or galvanic isolator when used in a hazardous zoned area 0, 1 or 2 for example?

Yes you must use a zener barrier or a galvanic isolator to comply with the detectors certification requirements. A zener barrier or Galvanic isolator must be used when a “intrinsically safe” (IS) detector is used in a hazardous zoned area. See our blog article on I.S. barriers for more information.

  Where can I find the SIL rating for my product?

The SIL certificates are available are on the specific product page on the Downloads tab.

  What is the expected life of the sensor in my fixed detector?

Please see our Warranty Periods document, which contains details of expected sensor life (in air).

  If I have a flameproof (Exd) fixed detector, can I make it “intrinsically safe” by using a Zener barrier or Galvanic Isolator?

No, a flameproof (explosion proof) device “safety protection” cannot be changed by using a zener barrier or galvanic isolator of any sort.

“With flameproof protection the heat or sparks from faulty equipment are contained within the enclosure”

“With IS protection the design limits the energy available to the equipment by means of a “barrier” in such a way that under no circumstance will the equipment be able to generate sufficient energy to ignite flammable gases”

See our blog article on I.S. barriers for more information.


  Can I improve the IP rating on my Xgard by adding a weather proof cover?

No, the IP rating cannot be improved on an Xgard with a weather proof cover it is still IP65.

  Can I convert my mV detector to 4-20mA?

Yes, we offer accessories that can do this. See Vortex accessories.

  I have a Flammable gas “Pellistor” type detector and want to detect a different flammable gas or vapour, can I cross calibrate it for other flammable gases/vapours?

Yes in many cases you can. If the detector is a VQ21T Pellistor based fixed detector (example Xgard) see Technical note GEN054 “Pellistor Correction factors” for cross calibration factors. Or contact us for the available data.


  Where can I obtain an MSDS for the batteries used in your products?

Please contact customersupport@crowcon.com to obtain a battery MSDS.

  Where can I find the ATEX or IECEX certificates for your products?

The ATEX and IECEx certificates are available on each specific product page on the Downloads tab.

  Where can I find the UL certification certificates for your products?

UL do not issue certificates, please see UL online certifications directory, and enter Crowcon into the Company Name to search for product certifications.

  How can I check if my detector is cross sensitive to other gases?

Please contact us for questions about cross sensitivity.

  Where can I obtain an SDS (Safety Data Sheet) for test gas?

SDSs for test gas can be found on this page of our website.

  How do I dispose of my test gas cylinder?

Cylinders need to be empty and de-pressurised before they are disposed of. They can then be recycled as metal waste in accordance with local regulations. Please refer to the Safety Data Sheet provided with the gas for more information.

  Can we detect ppm levels of flammable gases?

We offer Gas-Pro PID a Portable detector which can detect some flammable gases in ppm levels, please contact us for more details.

The LaserMethane mini is used to detect Methane in ppm-m (ppm metres)

  The gas/vapour I need to detect is not on your website. Do you have a product which will detect it?

We can detect lots of gases and vapours with our products and on occasion there is a requirement for something out of the ordinary. When we have these enquiries it is useful to have up front where possible certain information: the gas or vapour you want to detect, correct full name as well as a the SDS indicating the products characteristics. Specific environmental conditions. The application the detector will be required to operate in. The potential number of detectors required. List SDSs of other gases, vapours and chemicals the detector is likely to be exposed to.

  My detector won’t communicate with the PC application, what can I do?

Sometimes things can be missed when trying to communicate with your detector so here is a simple check list:

  • Do you have the correct software for the detector?
  • Is the software up to date?
  • Are you connected to the correct COM port?
  • Are you using the correct communication lead for the detector?
  • If it is a Portable detector is the charger/interface powered and operating?
  • A Detective + needs a main’s supply to communicate, is the mains lead plugged in and powering the detector?
  • Is the detector turned on?
  • Still not working? Please contact us for further assistance.