V12AM
Installation
Instructions
Walk Test LED
PCB
Electronics Module
Note: If internal EOL
resistors in use
connect the loop to
terminals 3 and 10
1 2 3 4 5 6 7 8 9 10
NC
ALARM
12 V
Power NC
AUX NC
TAMPER
T
E
S
T
C
T
R
L
+—
Anti-Mask
Light Pipes
Connector Block
Switches
PIR Sensor
(Do not touch)
Declination
Indicator
0m 5m 10m 15m
2.3m
Lens
Module
Main Lens
Main Lens Screws
Tamper Switches
(loosen only, do not remove)
Lens Module
Front Cover
Cover Screw
PCB
A
A
A*
B
B
C
C
A
A
B*
B
Cable Entry
Cable Channel
Base
Knockout Holes:
A - Corner mounted
B - Flush mounted
C - Wall mounted using LPB2 brackets
For the off-the-wall tamper to be operational, screw must
be fitted in either A* or B*
Enabled Disabled
Enabled Disabled
10 m 15 m
10 m 15 m
Connected Off
Connected Off
Standard High Security
Standard High
On Off
- -
FACTORY DEFAULTS
1 2 3 4 5 6 7 8 9 10
No. Function
1 LED Enable
2 Pulse Count
3 PIR Gain 1
4 PIR Gain 2
5 HS EOL1
6 HS EOL2
7 Mode
8 AM Sensitivity
9 AM On/Off
10 Not Used
OFF
ON
Coverage Diagrams
0m 5m 10m 15m
10m
5m
0m
5m
10m
b) High Security mode (switch 7 OFF):
When a mask attempt is detected, both the Auxiliary
Output and the Alarm Output will be activated and
a mask will be shown on the LED (see section 9), if
it is enabled. This can be reset after 15 seconds by
a unit alarm, provided the mask has been removed
and only if the Test Input is high or switch 1 is ON.
Using this mode with switch 1 OFF provides a
higher level of security as only a user with the
appropriate control panel authorisation can reset
Anti-Mask.
Note:
These modes also vary the unit's response to
various self diagnostic tests detailed in section 8.
It is strongly recommended that the Test Input is
used and switch 1 set to OFF if High Security mode
is selected.
If the Control Input is connected, Anti-Mask is
disabled when the system is set (Input high).
Refit the front cover and then generate an Anti-
Mask calibration by one of the following:
a) removing and re-applying power to the V12AM,
b) taking the Control Input low from a previously
high condition.
The Anti-Mask re-calibration takes 22 seconds and
it is important to remain clear of the detector by a
minimum of 2 metres during this time.
8. Diagnostics
Remote self test
This feature is only available in High Security mode
(switch 7 OFF). Switch 1 must also be OFF and the
Control Input low (system unset). To allow remote
verification of the detector, a self test is initiated
whenever the Test Input goes from high to low. If no
problems are found, a unit alarm will be generated
which the control panel can use to check the
detector and also the wiring to the panel. If the
detector fails self test, no unit alarm is generated.
Periodic self test
The detector regularly performs an internal electrical
self test. If the self test detects a failure, the Auxiliary
Output will be activated within an hour. In Standard
mode (switch 7 ON) this condition will be reset by
either a unit alarm or a successful periodic self test.
In High Security mode (switch 7 OFF) only a
successful remote self test will reset this condition.
Supply voltage monitor
The supply is continuously monitored. If it falls
significantly below 9 Volts, the Auxiliary Output is
activated and the LED will flash at 1Hz (once /
second). In Standard mode (switch 7 ON) this
condition will be reset if the supply voltage returns
to greater than 9V dc. In High Security mode, the
Test Input must also be taken from High to Low (see
section 1).
9. LED Indications
Low Voltage
Flashing slow (1 Hz = once /
sec).
Alarm
On for 3 seconds, if LED is
enabled.
Alarm Memory
On continuously to indicate a
memorised alarm (see section
6).
Mask
Flashing fast (4 Hz = 4 times
/ sec.) if LED is enabled.
Mask Circuit can
Flashing alternatively fast
not calibrate
(4 Hz) and slow (1 Hz) if LED
enabled.
These indications are disabled if Control Input is
High.
10. Troubleshooting
No LED indication
Check LED Enable is
selected, i.e. switch 1 ON or
Test Input high and Control
Input low.
LED flashing slowly
Check supply voltage is
greater than 9 V dc.
Continuous PIR activity
Check for strong draughts
indicated by LED
and other known
constant
activity
alarm sources.
Poor detection
Check lens adjustment.
LED flashing fast or
Check carefully for mask.
LED flashing fast /
Check front cover is fitted
slow
correctly. Reset mask as
described in section 7.
1. Technical Specification
Detector Voltage:
9 V to 16 V dc.
Current:
17 mA non-alarm, 18 mA
alarm, typical at 12 V dc.
Max Ripple:
2 V peak to peak at 12 V dc.
PIR Coverage
+3° to -11° vertically, ±5°
Adjustment:
horizontally when corner
mounted.
LED Indication:
Internal switch or Test Input
to enable.
Temperature Range:
-10°C to +55°C (14°F to
130°F).
Temperature
Increases gain only when room
compensation:
temperature close to body
temperature.
Alarm Output:
Normally closed, voltage
(NC ALARM)
free, solid state relay
contacts. Rated at 30 V dc,
50 mA with a maximum 10
Ohm on resistance.
Alarm Period:
Approximately 3 seconds.
Tamper Output:
Normally closed, voltage
(NC TAMPER)
free, switch contacts. Rated
at 30 V dc, 50 mA.
Test Input (TEST):
Normally low or open circuit,
connect to detector's
positive supply to activate
(High). Must have common
ground with detector.
Control Input:
Normally low or open circuit,
(CTRL)
connect to detector's positive
supply to activate (High).
Must have common ground
with detector.
Auxiliary Output:
Normally closed, voltage
(NC
AUX)
free, solid state relay. Rated
at 30 V dc, 50 mA with a
maximum 10 Ω on resistance.
2. Initial Installation
The V12AM is designed to tolerate a wide range of
environments, however, the normal professional
installation guidelines should be followed:
a) Avoid the main false alarm sources:
* Sunlight shining directly onto the detector,
* Heat sources within a zone,
* Strong air draughts onto the detector.
Mount the detector on a stable surface which
is not subject to vibration.
Large objects placed
in front of the detector will cause significant
changes in coverage.
b) Preparation & Mounting
- Loosen the cover screw and remove the front
cover. Grip the PCB at the connector block and
pull forward while easing the retaining clips
apart. Lift the module clear from the clips on the
rear moulding.
- Decide on the mounting position and cable
routing. The recommended mounting height is
2.3 m (7ft 6in). If required by the application, the
detector can be mounted at other heights and
the lens adjusted accordingly (see section 5d).
- Push out cable entry and appropriate mounting
hole knock-outs (A for corner, B for flush
mounting, C for low profile bracket).
- Fit the rear moulding to the wall.
c) Wiring
- Run cables through the cable entry hole.
- Holding it by the connector block, fit the PCB
into the rear moulding by inserting it into the
lower retaining clips and clicking firmly into
position.
- Connect the wires to the PCB terminal block.
- Guardall standard EOL resistors (8K2) can be
enabled by setting switches 5 and 6 ON. For
NEOL applications or operations with other
resistor values, switch 5 and 6 OFF. Connect
EOL loop between terminals 3 and 10 of the
connector block.
- Do not re-fit front cover at this stage.
3. Pulse Count
The Pulse Count setting is factory enabled (switch
2 ON). The first detection will cause a short LED
flash (if enabled, see section 5c). A second detection
within 25 seconds is required to generate a unit
alarm. If it is required that every detection generates
a unit alarm then the Pulse Count setting should be
disabled (switch 2 OFF).
4. PIR Gain
The Guardall V12AM is set for a detection area of
15m x 15m. To decrease the range to 10m x 10m
BOTH switches 3 AND 4 must be moved to the 10m
setting. The normal coverage instructions should
also be followed (see section 5).
5. Checking V12AM Coverage
Note that there will be a short delay (about 1
second) between movement and a unit alarm being
generated while the V12AM validates the intruder
signature.
Proceed with coverage checks as follows:
a) Check the Anti-Mask is disabled (switch 9 OFF).
b) Ensure that the voltage at terminals 1 and 2 is
between 9 V and 16 V dc.
c) Enable the LED by ensuring switch 1 is set ON
(as supplied) or by taking the Test Input high.
Note the Control Input must be low.
d) Adjust the coverage:
The declination of the zones can be adjusted
vertically by loosening the main lens locking
screws and moving the main lens. Declination
of the zones is indicated on the module as
follows:
A - Main zones horizontal
B - Normal position to give maximum range of
15m at 2.3 m (7ft 6in) mounting height.
C - Main zones fully declined to give
approximately 6 m (20ft) range at 2.3 m (7ft
6in) mounting height.
The horizontal coverage can be adjusted when
corner mounted by loosening the wall mounting
screws and adjusting the unit as required.
e) Tighten main lens screws, then walk test the
protected area checking that alarms are indicated
at the control panel. Finally fit the front cover and
tighten the cover screw if not using Anti-Mask.
6. Alarm Memory
This feature can be used provided switch 1 is OFF.
Connect an output from the control panel to the
V12AM Control Input with the following
characteristics:
* System Set - Control Input High (see section 1)
* System Unset - Control Input Low.
Should an alarm occur when the system is set, the
LED will not illuminate but the alarm will be
memorised. When the system is subsequently
unset, the LED will light constantly until the memory
is reset. If the Test Input is high, the LED will not light
continuously, but the detector can be walk tested
normally without losing its alarm memory. Memory
reset occurs the next time the system is set (Control
Input High).
Note that the state of the Control Input also effects
the operation of Anti-Mask (section 7) and the unit's
self diagnostic tests (section 8).
7. Anti-Mask (AM)
To enable the AM function of the V12AM set switch
9 ON.
AM sensitivity settings (switch 8):
a) Standard sensitivity:
Switch 8 ON (as supplied) is suitable for most
applications.
b) High sensitivity:
Switch 8 OFF is recommended for higher security
applications.
Modes of operation (switch 7):
a) Standard mode (switch 7 ON as supplied):
The Auxiliary Output will be activated after 45
seconds of a continuous mask condition. The mask
will be shown on the LED (see section 9), if it is
enabled. This can be reset by a unit alarm after 3
seconds provided the mask has been removed.
Guardall Limited
Lochend Industrial Estate
Newbridge
Edinburgh EH28 8PL
Technical Hotline: 0131-333-3802
Website: www.guardall.co.uk
Part No. 320668-0A
No indication on LED
Periodic self test fail; check
(when enabled),
connections and unit
Auxiliary Output
operation.
activated
Any further queries can be directed to the Guardall
Technical Hotline: 0131 - 333 - 3802.
11. Accessories
LPB2 - a low profile bracket providing approximately
±45° horizontal and vertical adjustment (item no.
W72321),
Corridor and curtain lens pack (item no. W73767).
12. Warranty
All Guardall products are warranted against defects
in workmanship in materials (details available on
request). In the interests of improving quality and
design, Guardall reserve the right to amend
specifications without giving prior notice.
Faulty product should be returned to your supplier.
HS Connections with internal
resistors selected
Connector
Block Detector
10
3Alarm
Tamper
8k2
8k2
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