Portable Gas Detector Testing and calibration
Testing and Calibration
In order to ensure the safe and accurate operation of Portable Gas Detectors, they need to be periodically calibrated against reference test gases that are traceable to National Physical Laboratory standards. The recommended calibration period for Status Scientific Controls gas detectors is six months although the frequency may need to be increased where continual exposure to the target gases is experienced.
Between calibrations it is also recommended that the response of the detector is checked using an appropriate test gas cylinder. These cylinders are available in 'large aerosol' form and may be supplied individually or as part of a Field Calibration Kit.
Status Scientific Controls offers a range of support equipment, including compressed gases, for the customer to carry out both calibration and response testing of the Portable Gas Detectors.
Warning - The Autocalibration Unit must not be used in a potentially explosive atmosphere.
The Autocalibration unit is suitable for customers who own and calibrate a fleet of Portable Gas Detectors. It operates in conjunction with a PC running purpose designed calibration software provided by Status Scientific Controls. The use of high pressure compressed gas cylinders is required with this unit - these are available from a number of specialist companies who provide a certificate of composition traceable to National Physical Laboratory Standards with each cylinder.
PC Interface or PC Interface/Charger Units
A PC Interface Unit or PC Charger/Interface Unit provides cost effective method of calibrating the Portable Gas Detector. They operate in conjunction with a PC running purpose designed calibration software provided by Status Scientific Controls. Test gas cylinders, regulators and sampling adaptors are required in order to present known reference gas levels to the instrument. These are available from Status Scientific Controls either individually or in kit form.
Test Gases for Calibration and Response Testing
Order Codes - Calibration Equipment
|SS081||Autocalibration Unit c/w software|
|SS104||Calibration Control Unit|
|SS105||Field Calibration Kit|
|SS108||Metal Sample Flow Adaptor & Tubing|
|SS111||PTFE Sample Flow Adaptor & Tubing (for absorbent gases e.g. Chlorine, Sulphur Dioxide)|
|SS219||Regulator kit c/w sample adaptors & tubing|
Order Codes - Test Gases in Large Aerosol Form (110 Litres of Gas)
|SS220||Methane 25% LEL, balance air|
|SS221||Methane 50% LEL, balance air|
|SS222||Propane 20% LEL, balance ai|
|SS226||Carbon Monoxide 50ppm, balance air|
|SS227||Carbon Monoxide 200ppm, balance air|
|SS229||Hydrogen Sulphide 25ppm, balance Nitrogen|
|SS230||Sulphur Dioxide 10ppm, balance Nitrogen|
|SS231||Compressed Air 20.9%|
|SS232||Propane 50% LEL, balance air|
|SS233||Carbon Dioxide 2%, balance air|
|SS234||Methane 99.9% volume|
|SS235||Methane 30% LEL, balance air|
|SS236||Carbon Monoxide 65ppm, Methane 1.5% volume, Hydrogen Sulphide 25ppm, Oxygen 18.5%, balance Nitrogen|
|SS237||Hydrogen Sulphide 80ppm, balance Nitrogen|
|SS238||Hydrogen Sulphide 30ppm, Methane 2.5% volume, Oxygen 18.5%, balance Nitrogen|
|SS239||Chlorine 10ppm, balance Nitrogen|
|SS240||Carbon Monoxide 65ppm, Methane 1.5% volume, Oxygen 18.5%, balance Nitrogen|
|SS241||Hydrogen 1% volume, balance air|
|SS242||Nitrogen Dioxide 10ppm, balance air|
|SS243||Hydrogen Chloride 10ppm, balance Nitrogen|
|SS244||Hydrogen Cyanide 10ppm, balance Nitrogen|