VDOT-ASD-100 Aspiration Detector
Velocity Detection
30
VDOT-ASD-100 Aspirating Smoke Detector User’s Manual V1
condition, indicating a sign of pipe breakage. On the other
hand, the flow reading less than 100 means the current flow is
smaller than normal condition, indicating a sign of pipe or
sampling port blockage.
Note: It is crucial to make sure no breakage or blockage on the
pipe before setting the device into normalization process.
Otherwise the system will see the abnormal condition as a
normal condition.
AutoNorm.
NF. N
Y
Y Setting this function to Y will automatically go into
normalization process when the device is powered on.
5 Alarm Action Cascade
Alarm
CA. N
Y
Y Setting this function to Y means that only when the detector’s
controller has gone into Alert does the controller start
counting down the Action delay i.e. the time delays on Alert
and Action are cumulative. So are the following Fire 1 and Fire
2 delays.
There are chances that the higher level alarm goes off before
the lower level alarm if the setting of higher level alarm time
delay is less than the time delay of lower level alarm and the
smoke level increase quickly. Enable cascade alarm will
guarantee the alarms go off step by step.
ADM
Alarm Latch
AL. N
Y
Y When this function is set to Y it requires a reset on the front
panel or a remote reset to clear an alarm condition. This
means the alarms must be confirmed and reset manually even
if the smoke level is decreased below alarm level. This is the
factory default setting. When this function is set to N, the
alarm will be reset automatically when the smoke level is
decreased below alarm threshold.
Fault Latch
FL.
N
Y
N When this function is set to Y it requires a reset from the front
panel or a remote reset to clear fault indications. If this
function is set to N, the fault will be reset automatically when
the fault condition is cleared.
Fault Delay
Ft.
0
60
10 The fault delay is the number of seconds that a fault condition
has to be continuously sensed before the fault is initiated.
6 Filter
Filter Status
FS.
0
100
Read Only
Filter Due
Fd.
0
730
Read Only
New Filter
FN. N
Y
N Setting this function to Y to start a new filter life cycle when a
new filter has been installed
DST
7 Front Panel Reset Button dr.
N
Y
Y The front panel buttons may be enabled or disabled
individually by setting these functions to Y or N.
ADM
Isolate Button dI.
N
Y
Y
Silence Button dS. N
Y
Y
Test Button
dt.
N
Y
Y
Beeper
db. 0
4
3 The front panel beeper has different mode when it is set to
the following number:
0: Disable the beeper, no sound in case of alarm or fault.
1: In alarm, the beeper sounds one second in every 10
seconds. In fault, the beeper will not sound.
2: In alarm and fault, the beeper sounds one second in every
10 seconds.
3: In alarm, the beeper sound consistently. In fault, the beeper
sounds one second in every 10 seconds.
4: In alarm and fault, the beeper sound consistently.
8 Control
RESET
Cr.
N
Y
N This has the same effect as pressing the
<RESET/ISOLATE/SILENCE/TEST>
buttons on the front panel.
ADM
ISOLATE
CI.
N
Y
N
SILENCE
CS. N
Y
N
TEST
Ct.
N
Y
N
9 GPI
GPI-1
I1.
0
15
1 Setting the GPI terminal to below functions:
DST
