Bump Test
Bump testing verifies that your device’s gas sensors and notification indicators (lights, siren, speaker, and microphone) are functioning correctly. During a bump test, you apply a known concentration and amount of gas to confirm the sensors will trigger a notification in the event of gas exposure.
EXO automatically communicates the data collected from each bump test to Blackline Live when it is connected to the cellular or satellite network.
Bump test schedule
The bump test schedule can be configured to match your company's safety policy. These changes are made in the configuration profile in Blackline Live.
Blackline recommends that your bump test interval not exceed 30 days. Where site or regulatory requirements are more stringent, Blackline recommends the more stringent requirements apply.
The bump test results in either a pass or fail. Exiting the bump test before all sensors have been tested will result in a fail.
On start-up, EXO will display when the next bump test is due. By default, an overdue bump test will cause a reminder message to display in the banner of the Gas status screen. The bump test overdue reminder is configurable in Blackline Live.
Gas cylinders
Sensors can be manually bump tested at the same time using one gas cylinder with a multi-gas mixture, or individually using multiple gas cylinders. If using multiple cylinders, the manual bump test procedure will need to be repeated for each cylinder. In step 6 of the manual bump test procedure ( Manual Bump Test section), ensure all the gas sensors that correspond to the attached cylinder's gas mixture are selected. The gas concentration of the connected gas cylinder should match the gas concentration listed in EXO's calibration gas configuration in Blackline Live.
Some cartridges require you to bump test sensors in a specific order due to gas sensor cross sensitivity. Refer to G7 and EXO Gas Sensor Bump Testing and Calibration Order for more information.
