Xtralis VESDA VFT-15-C, Руководство по эксплуатации продукта

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VESDA by Xtralis
VESDA VFT-15 Product Guide
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ADDRESS
This is the detector's RS485 address. The range is 0 to 30; a value of 31 disables RS485 communications.
The default setting is 31 (off). Note that if the display panel is used remotely, communication to it is by means
of this RS485 communications port, and the ADDRESS setting is not used.
TESTTIM
Set in minutes. If no rotary valve movement has been triggered within this time period then an automatic scan
will be initiated. To normalize flow on a detector, scroll to the TESTTIM parameter in the Configure menu, and
press enter. This should only be carried out after fitting the microbore tubes. Refer to Section 4.1 for further
information.
MIN DWELL
Used for rotary valve movement control. Determines the minimum time in seconds that the valve will remain
stationary between sectors. The default setting of '8' must not be changed if compliance with EN54-20 or UL
is required.
GAIN X
The GAIN X setting is used to condition output signals from the 8 channel 4 - 20 mA Output Module where it is
set to measure Smoke (real time smoke density). Gain settings range from 1 to 100.
The GAIN X setting should be increased where the background smoke level is high, or decreased where
background smoke is low.
Refer to Section 5.4.2 for further information.
MOD1, MOD2, MOD3, MOD4, MOD5
Some module types may be used in different ways. MOD1 to MOD5 sets the usage of these modules. See
under the specific I/O module section.
SC_DEL
N/A.
NIGHSTART, NIGHSTOP
The time in hours, on a 24 hour basis, at which the values change from day to night or back again. The default
value for both is 12, at this value only the day values are applicable.
TRC PRESS
Trace Pressure is used as a figure to initiate the valve into a scan routine when the required change in airflow
is detected. This figure is set by monitoring the REL in value with the Rotary valve monitoring flow in the
overall position.