WAGNER TITANUS, Technical Manual

Page: 157 / 208

TITANUS MICRO·SENS
®
Commissioning
MS_A_07-en-e Data: 01/09
7 – 17
? Blow through ventilator
The operating voltage for the blow through ventilator should if possible be
kept at 13.5V for location. It can be changed as follows for special
applications:
Operating Status Voltage (V)
- for an optimum (short) blow through time 13.5 V
- for longer blow through times
- for lower voltage drops with smaller cable
cross-sections
9.0 – 13.4 V
The value selected is stored permanently in the TITANUS MICRO·SENS
®
and used for each location procedure.
Attention: Under certain circumstance the blow through time may not be
sufficient to blow through the pipe, if too low a blow through ventilator
voltage was selected. This can cause a false fire site to be displayed.
? Aspiration ventilator help
The operating voltage for the aspiration ventilator must be selected so
that a time difference of about 2 to 4 seconds between two neighbouring
aspiration apertures is not undercut. If the time differences are too short,
then when there is an alarm, a false fire location may be displayed. As
the air flow between aperture A and B is the highest, then with a normal
design this has the shortest time.
The following table contains guideline figures for setting the operating
voltage:
Distance A - B (m) Max. Voltage (V)
3 9.0
4 9.8
5 10.7
6 11.5
7 12.4
from 8 m 13.2