Calibration Gas for Bump Test

For bump tests, a calibration gas that closely matches the target gas that the gas detection instrument is designed to detect is typically used. The calibration gas should contain a known and stable concentration of the specific gas to simulate a gas exposure and ensure that the gas detector responds correctly. The concentration used in the calibration gas should be at a level that would trigger the instrument's alarms if it's functioning properly.

The specific calibration gas used for bump tests depends on the type of gas detection instrument and the gases it's designed to detect. Here are some examples:

  1. Carbon Monoxide (CO): Calibration gas containing a known concentration of carbon monoxide is used for bump tests on CO detectors. The concentration is usually chosen to trigger the instrument's alarm at a predetermined level.

  2. Hydrogen Sulfide (H2S): Calibration gas with a stable concentration of hydrogen sulfide is used for bump tests on H2S detectors. Like CO, the concentration is set to activate the alarm appropriately.

  3. Combustible Gases (LEL): For instruments that detect flammable gases, a calibration gas mixture with a known concentration of a combustible gas, such as methane (CH4), is used. The goal is to set the instrument's alarms to activate at the Lower Explosive Limit (LEL) concentration.

  4. Oxygen (O2): Oxygen deficiency or enrichment can also pose risks. Calibration gases with specific oxygen concentrations are used for bump tests on oxygen sensors to ensure they are accurately measuring oxygen levels.

It's important to note that the calibration gas should be purchased from reputable suppliers and be certified for accuracy. Using improper or outdated calibration gas can lead to inaccurate readings and compromise the safety of the users.

Always refer to the manufacturer's guidelines and recommendations for the specific gas detection instrument you are using to determine the appropriate calibration gas and concentration for bump testing. Regular bump tests with the correct calibration gas are an essential part of maintaining the reliability and accuracy of gas detection equipment.

For more information on this source, please visit ACD Gas Generators and MiniBump Tester  

Genie QC-1 Gas Generator

The GENie QC-1 is the best calibration gas instrument for ammonia calibration gas. By utilizing a sealed glass ampule that is broken before use, the GENie QC-1 is the perfect tool for anyone that calibrates fixed or portable ammonia sensors. With a user-adjustable outputs, the GENie QC-1 can be set to a wide range of outputs allowing for calibration of nearly any ammonia detector on the market.

Compact, handheld, accurate, economical and rugged, this family of integrated and expandable calibration gas instruments will generate a variety of gases from one modular instrument. As your calibration gas needs grow, so does the GENie, with integrated, expandable modules that provide for a cost-effective solution.

MiniBump Test 

The MiniBump is the smallest, most lightweight and adaptive calibration gas source on the market. It is our lowest entry cost product as well as our simplest to use. It is certified to be intrinsically safe for operation on potentially explosive atmospheres. The MiniBump operates with  interchangeable generating sources providing either fixed concentration output for calibration, or ‘bump’ output to drive your detector into alarm for operational verification. Available in hydrogen sulfide, chlorine, hydrogen and hydrogen cyanide. The complete device fits into your shirt pocket and provides the equvalent of five 58 liter cylinders of gas with each generating source.

Cal 2000 Gas Generator

The Cal 2000 provides unmatched versatility and accuracy in certified calibration gases. Field replaceable calibration gas sources (generating cells) provide a calibration standard for accurately testing Chlorine, Chlorine Dioxide, Hydrogen, Hydrogen Cyanide, and Hydrogen Sulfide gas detectors with a single instrument.

The Cal 2000 is microprocessor controlled and has an LCD (display) allowing field adjustable gas concentrations and flow rates. The sources are interchangeable and field replaceable.

We are proud to be the first and only authorised dealer of ACD Calibration Gas Instruments in the UK.

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