Gas Leak Detection
Most gas detection systems are there to protect life. It is vital that the sensor works when it really has to. In order to really determine whether a sensor is functioning correctly there is only one reliable method, the sensor must be exposed to gas.
How can this be done? Most often a regular check with the target gas is carried out manually, someone has to carry a gas cylinder to the gas detection system sensor and expose the sensor to the gas.
How often should this be done? Weekly, monthly, annually? This is always determined by the end user and should normally be based on risk assessment. In practice many systems are not tested often enough. It is often just too costly or impractical to test a sensor every week for example.
How are records kept ? A site log book can be used to record all the test data. This can be laborious and time consuming.
All this means that the cost of testing normally far exceeds the purchase cost
ATi has a system that dramatically eliminates the need for manual testing while also greatly increasing the level of confidence in the gas detection system.
The ATi AutoTest uses the target gas, or a surrogate, to test sensors on a user programmable interval, daily, weekly etc. No more cylinders to carry, no method statements and risk assessment to complete, no log book to fill in. The ATi AutoTest system uses an integrated gas generator to create gas and really test the sensor. A record of each test is stored on a chip in the sensor ready for download. Hard wired alarms give an immediate indication of any failed or out of specification sensor.
The AutoTest feature is available for many of the gases in our range. Our A12, A14, D12 and F12 ranges all have AutoTest capability.
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