
T3A Transmitter • 29
Alarm Test
The alarm test simulates a gas level reading. The alarm test is used to ensure the proper
functionality of the relay settings on the controller. The test can also be used to simulate
emergency/safety drills onsite.
NOTE:
Triggering T3A relays will also simulate Alarm 1 and Alarm 2 relays at the controller.
Controllers cannot distinguish between real and simulated data received. When the
controller relays are triggered, alarm devices will perform as intended, initiating
emergency procedures as if a harmful or toxic gas was actually present. To prevent
this from occurring, set the controller to calibration mode before performing the
alarm test. Calibration mode allows data transmission without relay activation.
It is recommended that an alarm test be conducted EVERY 30 days, alongside the
maintenance and calibration of the detector.
Performing the Alarm Test
The alarm test gas level reading can be increased or decreased in increments of 5% of the
sensor scale, up to 100% of the sensor scale.
1. Enter the Product Settings and Configuration menu by pressing and holding the MENU
button for 6 seconds. The alarm test screen appears.
2. Press the ADD button until the Alarm 1 and Alarm 2 levels are reached and the relay(s)
are triggered to light all visual alarm(s) and sound all audio alarm(s) on the controller.
3. Once all relays have been tested and the test is complete, press the SUB button to return
the alarm test reading back to zero and to deactivate the controller alarm(s).
4. Press and release the MENU button to move through the Product Settings and
Configuration menu or to exit to the normal operating mode screen.
System Information
The system information screen allows the end-user to view the following information:
•
The scale of the sensor element.
•
The supply voltage of the sensor unit.
•
The voltage value (in volts) that the sensor was reading when zeroed.
•
The current voltage value (in volts) that the sensor element is reading.
This screen is for informational purposes only.