Chapter 3: System operation
P/N 3102351-EN • REV 005 • ISS 28DEC18 153
Activating and restoring gas accelerated response
Use the Activate Gas Accelerated Response option to turn on the accelerated response mode.
Use the Restore Gas Accelerated Response option to turn off the accelerated response mode.
Under normal conditions, it takes approximately four minutes at 400 PPM of CO before a CO
detector activates. This mimics the normal absorption rate of CO in the bloodstream. When
testing a CO device, you can put the CO detectors in the CO accelerated response mode,
which shortens the time to activation to be between four to eight seconds at 400 PPM of CO.
You can activate a gas accelerated response on devices that have a CO sensor. See Table 10
on page 49. Once activated, the gas accelerated response on that device remains active for
four hours, unless you manually restore it, or the device returns from a communication fault.
To activate gas accelerated response:
1. Press the Menu button and choose Control.
2. Enter a level one password.
3. Choose Activate/Restore.
4. Choose Gas Accel Response.
5. Select the device that you want to accelerate.
6. Press Enter.
7. Press Cancel to return to the previous menu.
— or —
Press the Menu button to exit menu mode.
Disabling and enabling devices
Disabling a device does not prevent it from activating, but it does prevent event messages
originating at the device from being displayed, printed, or reported off-premises. Devices are
typically disabled during maintenance. Remember to enable the device as soon as you have
finished working with it.
Note: Disabling the devices will override the sensor bypass.
The Reset command does not restore disabled or latched devices. Disabled devices must be
enabled and latched output devices must be unlatched before they can be restored. The Reset
command also does not restore sensor bypass devices, which must be enabled.
When a device is disabled:
• When the device you are disabling is active, a warning message displays.
• The common Disable LED turns on.
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