Twintec 1081 User manual

496349 Issue 1 1 of 10
1081/1082
Installation Guide
Compatible Equipment
All hardwired control panels, for example:
808 8-12 zone control panel
816 8-16 zone control panel
8136 8-8136 zone control panel

2 of 10 496349 Issue 1
Introduction
The 1081 and 1082 Twintec ® Twin Technology Detectors are indoor motion
detectors for use with wired intruder alarm systems and are suitable for all
industrialapplications.
Both detectors combine Microwave and Passive Infra Red (PIR) technologies
in a single small detector. However, the 1081 detector is designed for wide
angle applications, while the1082 detector is designed for long range (Corri-
dor) applications.
Twintec is Microprocessor based and uses digital signal processing tech-
niques. These, combined with Energy/Frequency analysis on PIR channel
and M.E.V. (Multi Event Verification) on microwave channel, give optimum
reliability with maximum performance.
Complete shielding of the electronic circuitry reduces false alarms caused by
RFI. Optical and software filters reduce false alarms caused by white light
and fluorescent lighting. The range of the microwave sensor on both detec-
tors may be selected to limit coverage to the area requiring protection.
Two sets of relay contacts are provided. The alarm contacts are Single Pole
Change-over in alarm (NO/C/NC) and the tamper contacts are closed with
the cover on. The detectors also provide a Remote LED Enable/Disable
function, which, if held high, will inhibit the operation of the alarm LED in the
Day mode unless a 0V supply is applied to terminal 7 on the pcb terminal
block (via a switch or automatically applied from the control panel Walk Test+
output).
The detectors use microstrip technology for microwave detection, together
with an integral look-down mirror and facilities for accurate beam location.
Technical Specification
The 1081 and 1082 detectors comprise a grey textured ABS base housing
the metallic shielded printed circuit board and a cover assembly housing the
white light filter. A separate ABS lens carrier assembly is designed to clip
over the pcb metallic base and slide down for accurate zone location with the
cover removed.
SupplyVoltage 8-15VDC.
Current 20mA.
RelayOutput SPCO, 30V, 100mA dc. Change-over in alarm with
22 ohm resistor in series.
Tamper Output SPST, 30V, 100mA
1081/1082

496349 Issue 1 3 of 10
Detection Pattern
1081 Wide Angle 21.3m, 90° angle at 2.5-3.65m from floor.
Figure 1. 1081 Wide Angle.
1082 Long Range 30.5m. 10° angle at 2.5-3.65m from floor.
Figure 2. 1082 Long Range.
Operating Temp. -10° C to +55° C
MW Range Adjustable 100 - 30% by potentiometer.
Microwave Dielectric Resonant Oscillator with microstrip
antenna 10.687 GHz.
1081/1082 Technical Specification

4 of 10 496349 Issue 1
Infra Red Sensor Dual element pyroelectric detector, hermetically-
sealed.
MicrowaveSupervision In the event of a microwave section failure, super-
vision circuitry reverts unit to PIR only operation
and causes PIR to convert from Single Edge to
Double Edge PIR operation. The Alarm/Test/
Trouble LED will also flash if programmed for
Trouble. Detector pcb Trouble output also operates
with open collector to 0V.
RFI/EMI Immunity The unit will not alarm when subjected to RFI/EMI
signals of 1MHz to 1GHz with a field strength of 10
Volts/Metre.
Fluorescent Tube
Immunity An 80W 1.83m illuminated fluorescent tube posi-
tioned 0.5m above and 2m in front of the detector
will not reduce detector performance.
With tube switched on for one minute, then off for
30 seconds, a total of five times, the detector will
not alarm.
LED Indicators Red LED selectable for unit Alarm/Trouble. Green
LED for PIR detection. Yellow LED for MW detec-
tion.
Mounting Quick start screw facility for flat wall mounting.
Provision for corner mounting in 90 deg. corner
between walls or between ceiling and walls.
Optional wall bracket available providing horizontal
adjustment of ±90°.
Physical h x w x d 120 x 94 x 64mm.
Approval DTI Spec. MPT1349.
Warranty 5 Years.
Specification subject to change without notice.
Wiring The Detector
1. Ensure that no power is applied to the wiring.
2. Connect wiring to the appropriate terminals as shown in Figure 3.
Wiring the Detector 1081/1082

496349 Issue 1 5 of 10
Figure 3. Wiring 1081 and 1082.
3. Use terminal 6 (Spare) as a connection point for EOL devices.
4. Connect terminal 7, (Remote LED Control) to the appropriate switch or
alarm panel walk test output (if required).
5. Connect terminal 4 to the positive supply.
6. Connect terminal 5 to the 0V supply.
7. Connect terminals 1, 2 and 3 (Alarm Relay) and terminals 9 and 10
(Tamper), to the control panel or warning device.
8. After all connections are complete, seal wire entry openings and apply
power to the detector.
PIR Lens Adjustment
This adjustment can only be carried out with the detector cover removed.
Particular attention should be paid to the lens adjustment procedure for 1082
detectors due to the long range of the detector.
1. Squeeze the lens carrier handles and remove the lens carrier from the
pcb assembly.
2. Remove the trbl (Trouble) link and fit it across the Zone pins (see Figure
4). The red Zone Locator LED will remain on to allow adjustment of the
lens to the desired protection pattern.
1081/1082 PIR Lens Adjustment

6 of 10 496349 Issue 1
Figure 4. Inside 1081 and 1082.
3. Refit the lens carrier to the pcb assembly in the ‘ZL’ (Zone Locator)
position shown in Figure 5.
Figure 5. Setting the Lens Carrier Position.
4. Walk in front of the detector. Mark the maximum sensitivity point for
each lens segment by observing the brilliance of red light through each
lens segment. The lens is focused where the light appears brightest.
5. If necessary, adjust the PIR surveillance pattern by loosening the lens
clamps on the lens carrier and turning the lens in the appropriate direc-
tion within the carrier. Ensure that the lens clamps are tightened before
retesting the lens pattern.
Note: Where the optional wall mounting bracket is used, the complete detector
pattern (PIR and MW) can be adjusted.
6. On completion of the lens adjustment, remove the lens carrier and set
the Zone jumper to the trbl position if trouble monitoring is required. If
trouble monitoring is not required, leave the jumper parked on one pin
only.
PIR Lens Adjustment 1081/1082

496349 Issue 1 7 of 10
Testing
Once the detector is installed and the PIR lens pattern adjusted, both the PIR
and MW sensors must be walk tested to ensure that the required area is fully
protected.
Note: If Remote LED Test Enable is used, ensure that the control panel or test
switch is in the Walk Test position before proceeding.
Microwave Surveillance
The microwave sensor works best with the sensitivity adjusted to the mini-
mum necessary to protect the required area.
1. With the detector cover removed, squeeze the lens carrier handles and
remove the lens carrier assembly.
2. Place the shorting link over the Test pins. Set the MW sensitivity
potentiometer to minimum sensitivity. Ensure that the Test jumper and
MW jumpers are fitted.
3. Replace the lens carrier and refit the detector cover.
4. Stand outside the protected area and wait until all LEDs are extin-
guished.
5. Walk into the protected area and stop when the yellow (MW) LED
illuminates. Mark this position.
6. Repeat steps 4 and 5 in other parts of the protected area until the
microwave pattern has been satisfactorily mapped.
7. If necessary, increase the microwave sensitivity until the area is com-
pletelycovered.
PIR Surveillance
1. Remove the detector cover and lens carrier assembly and ensure that
the Test jumper and PIR jumpers are fitted and the MW link is removed.
2. Replace the lens carrier and refit the detector cover.
3. Stand outside the protected area and wait until all LEDs are extin-
guished.
4. Walk into the protected area and stop when the green (PIR) LED is
illuminated. Mark this position.
5. Repeat steps 3 and 4 for other parts of the protected area until the
complete PIR pattern has been mapped.
6. Ensure that the detection pattern is free from potential problems. If
necessary, re-adjust the lens (see “PIR Lens Adjustment) or mask off
lens segment (see “Technical Specification”) or relocate the detector.
1081/1082

8 of 10 496349 Issue 1
NOTE: Do not, UNDER ANY CIRCUMSTANCES, fit links over both the Microwave
and PIR test jumpers at the same time.
Masking
It may be impossible to avoid problem areas within the PIR surveillance
pattern, e.g., hot surfaces or radiators. If false alarms are established during
walk testing and the cause cannot be removed from the protected area,
locate the cause and establish the lens segment covering the particular area.
Mask the lens segment from the inside of the lens using only the masking
material supplied.
Setting The Detector Operational Mode
When the surveillance pattern for both PIR and microwave sensors have
been adjusted and tested, it is necessary to set the operational mode of the
detector according to the individual site security requirement.
1. Remove the detector cover and lens carrier assembly.
2. Position the links according to requirements as follows:
trbl link fitted Red Alarm LED will flash in the event of a failure of
the microwave sensor. Trouble output operates.
trbl link not fitted No LED indication of microwave sensor failure.
Trouble output still operates
Test link fitted This link should only be fitted during testing of the
detector.
Test link not fitted Normal operational mode.
Neither PIR
nor MW link fitted Normal operating mode requiring both the micro-
wave and PIR sensors to detect movement before
the alarm relay is activated.
Both PIR and MW
link fitted In this mode of operation, the relay will be activated
if either the PIR or microwave sensor detects
movement. In this mode of operation, the detector
is highly sensitive and should be used in extremely
secure environments, e.g., bank vaults.
3. Refit the lens carrier assembly and the detector cover.
Masking 1081/1082

496349 Issue 1 9 of 10
Commissioning
When the PIR and MW sensors have been tested and adjusted and the
operational mode has been selected, the operation of the complete detector
should be tested as follows:
1. Select Walk Test at the control panel or switch, if applicable.
2. Clear the protected area and make four random direction walk tests.
Walk at a rate of one normal step per second within the detection
pattern. The unit should alarm within three out of the four walk tests.
3. Stand outside the protected pattern and operate any potential cause of
false alarm, e.g., operate lights, open doors, etc. If the unit detects the
deliberate cause of false alarm, try readjusting the detector pattern.
4. Stand outside the detection pattern and observe the detector operation
for three to five minutes without doing anything. The detector should not
alarm. If the detector does alarm, locate the cause and correct it.
Note: When walk testing, cross the sensitive zones at right angles in an upright
position. After each activation, wait until the LEDs have extinguished.
Fault Finding
Alarm LED does not illuminate during testing
• Test jumper not fitted correctly. Check Test jumper.
• Detect not set for Walk Test. Check that panel is set for Walk Test or
switch is in Walk Test position if using Remote LED Enable function.
• Connection error. Check connections to detector connector block.
PIR sensor activates with no movement.
• Check mounting position for sources of air current or heat. Check
protected area for pets or large rodents. Rectify or relocate detector.
MW sensor activates with no movement.
• Microwave sensitivity set too high. Reduce sensitivity setting. Recheck
microware coverage after any adjustment.
• Possible vibration at mounting position. Check for vibration at mount-
ing position. Check area for pets or large rodents. Rectify, or relocate
detector.
If unit set for Trouble indication, red LED flashes.
• Microwave sensor failure. Replace detector.
1081/1082

10 of 10 496349 Issue 1
1081/1082