Vortex
21
10. Press ACCEPT/RESET. The display should read the calibration gas concentration
(for a gas detector) or the current in mA (for a fire detector). If there is an E009 fault,
it indicates that the mA output from the detector and the required reading are too far
apart to allow compensation. The detector calibration should be checked.
11. The detector and Quad Channel Input Module are now configured and calibrated
correctly.
For a gas detector (other than oxygen), remove the calibration gas.
For a fire detector, remove the ammeter and reconnect the fire loop.
12. Press the RUN button on the front of the Display Module to release the Channel Test
Mode.
13. Release any Inhibit Conditions by pressing the appropriate ZONE INHIBIT button.
14. If necessary select another channel and repeat this procedure until all channels are
calibrated.
4 TECHNICAL INFORMATION: VORTEX
4.1 General
This section contains detailed technical information on the Vortex modules that you may
need to refer to during installation, configuration or maintenance of the Vortex system.
If you simply use Vortex for monitoring and responding to alarms, it is not necessary to read
this chapter. See chapter 6, Operation.
ORTEX TECHNICAL
4.2 Node Controller Module
4.2.1 Functions of the Node Controller Module
This module controls the operation of Vortex, gathering the channel readings from the Quad
Channel Input Modules. After correcting them for the zero adjustment and calibration it
calculates the detector levels and checks them against the alarm limits. Based on the
corrected inputs, it drives the displays, calculates voted outputs and drives the Relay Output
Modules. It also interprets the power and battery status. The Node Controller Module
contains the configuration of the system, which is stored in non-volatile ferroelectric RAM
(FRAM).
The Node Controller Module logs event data and controls communications between modules
and communications with external devices using the Modbus protocol.
Figure 3 gives a general view of the Node Controller Module. Figure 17 (Appendix B) shows
the electrical connections to the Node Controller Module.
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