Pima DSH743 User manual
Wireless 2-Way
Smoke Detector
Model: DSH743 / DSH786
Installation and User Guide
2
Introduction
PIMA's new DSH Detector combine the most advanced technologies within a
contemporary, compact and streamlined design, the ideal choice for homeowners seeking
the highest safety standards. The DSH detector has been designed for use in family
homes, apartments or small offices. The DSH detector is easy to install and is compatible
with PIMA’s wireless systems.
NOTE: The smoke and heat alarm is not suitable for use in leisure accommodation vehicles.
How it works
Smoke & Heat
Smoke is detected employing an advanced photoelectric chamber, while temperature is
monitored with four separate heat sensors that measure the rate-of-rise, as well as the
absolute temperature. With a choice of selecting either smoke or heat detection or a
combination of the two, the DSH detector offers a more sensitive and dependable product
for early detection of fire hazards in different environments with a reduced risk of false
alarms.
The principal function of the DSH detector is to detect smoke and / or heat and then to set
off a local alarm. An alarm is activated by the troubled detector and the system’s receiver
is informed about the alert.
Main Features
•Bi-directional wireless communication
•Wireless, combined smoke and heat detection
•Simple battery replacement performed by the customer
•Multiple heat sensors measuring fixed temperature and rate-of-rise provide
accurate readings and high false-alarm immunity
(Smoke & Heat mode)
•Visual LED indicates alarms, standby mode, and low battery
•Built-in test mode activates self-test and alarm-sounding
•Ceiling / wall tamper
•Modern look and feel
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•Simple to install
Selecting a Device Location
Where to install your smoke alarm / heat detector
•Install a smoke & heat detector in the hallway outside of every separate
sleeping area (see Figure 1). Two detectors are necessary in a building with
two areas with bedrooms.
•Install a smoke & heat detector in every room that is used as a sleeping area.
•Install a smoke & heat detector on every floor in a multi-floor home (see
Figure 2).
•Install at least two smoke & heat detectors in every home.
•Install smoke & heat detectors at both ends of a hallway between bedrooms
if the hallway is more than 12 meters long.
•In basements, install detectors at the bottom of basement stairs.
•For upper story’s, install detectors at the top of the staircase leading to the
story.
•Make sure that the path of the smoke to the detector is not blocked by a
door or another obstacle.
•Install additional detectors in your living room, dining room, family room
and attic as well as in the laundry and storage rooms.
•Install smoke & heat detectors as close as possible to the center of the
ceiling. If it is not practical, install the detector no closer than 10cm to walls
or corners (see Figure 3).
•If installing on the ceiling is not possible and state and local authorities
allow the installation of the detectors on walls, assemble them on walls at
10cm –15cm from the ceiling (see Figure 3).
•If your home has a sloped ceiling or gables, try to install the detectors 90cm
from the highest point of the ceiling, measuring horizontally (see Figure 4).
4
Figure 1: Installation locations for smoke &
heat detectors in single- family apartments or
homes with only one sleeping area
Figure 2: Installation locations for
smoke & heat detectors in multiple-
floor apartments or homes
Figure 3: Recommendations for best and
acceptable installation locations for
installing smoke & heat detectors.
Figure 4: Recommended
installation location for smoke &
heat detectors in rooms with
sloped ceilings or gables (slope >20
degrees).
90 cm
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Where not to install your smoke & heat detector
A false alarm can be triggered if smoke & heat detectors are installed where they cannot function
properly. To prevent such false alarms, do not install smoke & heat detectors as follows:
•In areas with constant fresh air supply. Movement of fresh air can keep
smoke from entering the smoke & heat detector, thereby limiting its
effectiveness.
•Near paint thinner vapors.
•In very hot or cold areas, such as near air conditioners, heaters or fans.
•In areas with still air, such as under pointed roofs or in corners between
walls and ceiling. Still air can prevent smoke from reaching the detector (see
Figure 3 and Figure 4 for recommended installation locations).
•Areas prone to insects. If insects enter the sensor chamber of a detector, they
can trigger false alarms. If you have a bug problem, take care of it before
you install detectors.
•Near fluorescent lights, since electromagnetic fields from fluorescent
lighting can trigger false alarms. Install smoke & heat detectors at least 1.5m
from such lights.
Where the “heat only” mode can be used
To prevent false alarms, you can use your detector in “heat only” mode. Use the detector
in this mode only in or near areas where typically only harmless combustion particles
exist which do not present a fire hazard. If the distance of the detector to places at which
combustion particles normally exist –for example in kitchens –is less than 6 meters,
install the detector as a heat detector only and as far away from the combustion particles
as possible.
To prevent false alarms, make sure the ventilation in such places is good. Never try to
prevent false alarms by switching off the detector.
Other locations:
•In damp or humid areas or near bathrooms with showers. The humidity in
the air can get into the measuring chamber and form droplets as it cools,
which can then trigger false alarms.
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•In very dirty or dusty areas. Dirt and dust can collect in the measuring
chamber of the detector and cause it to become over-sensitive.
In addition, dirt and dust can block the openings to the measuring chamber
and prevent the detector from detecting smoke.
Installation
The DSH detector must be assembled on the ceiling or, if necessary, on the wall. The DSH
detector cannot be networked with other detectors.
Before installation, read the sections titled “Where to install your smoke & heat detector” and
“Where not to install your smoke & heat detector”, in these operating instructions.
Installing the detector
1. Select the installation location.
2. Remove the plastic mounting bracket from the detector (see Figure 5).
Figure 5
Figure 6
Figure 7
3. Using the mounting holes as a template, secure the mounting bracket to the
mounting surface (see Figure 7).
Battery Compartment
Tamper
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4. Open the battery compartment cover (see Figure 8).
Figure 8
5. Place the batteries into the battery holder while observing polarity.
6. Connect the battery cable to the battery connector
7. Insert the battery holder in the battery compartment and close the battery
compartment cover.
8. Configure the detector (see Configuring the detector).
9. To Install the detector on the mounting bracket, align the base rib with the bracket
rib, insert the base hooks into the bracket cavities and then turn the detector
clockwise (see Figure 9).
Battery Holder
8
Figure 9
Figure 10
NOTE:
Closing the detector bracket may be a little difficult. While closing the bracket the test
button may possibly be pressed.
Replacing the Battery
1. Remove the plastic mounting bracket from the detector (see Figure 5).
2. Remove the old battery.
3. Insert the new battery while observing battery polarity (see Figure 11).
4. Close the battery compartment cover.
Figure 11
LED Indicator
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Configuration
Enrolling the detector
For complete description of the wireless configuration and device enrollments, refer to
Programming Guide for the FORCE and VISION Alarm Systems
Enrollment of the smoke & heat detector in the system can be performed manually or
automatically via the keypad.
Auto Enrolling (using RF Communication):
1. Enter Installer menu, and select:
System Configuration > Peripherals > Wireless Peripherals > Enroll and delete >
Detectors >Enroll >Auto Enrollment
2. Insert the batteries and press the tamper button for 3 seconds (or connect the detector
to the mounting bracket) until the system indicates that it has received the enrollment
message; The serial number should appear on the keypad.
3. Select Enroll and press .
Upon successful registration, the detector’s green LED indicator makes 4 short blinks.
Manual Enrolling:
1.Enter Installer menu, and select:
System Configuration > Peripherals > Wireless Peripherals > Enroll and delete >
Detectors >Enroll >Manual Enrollment
2. Enter the serial number and press .
3. Select Enroll and press .
Enrolling through the Force Manager Software:
You can enroll the detector using Force Manager software; For information refer to the
Force Manager Manual.
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Visual / Audible Indicators
If the red LED indicator (see Figure 10) flashes once every 30 seconds, the detector is
functioning normally.
If the red LED indicator flashes constantly and repetitive beeps are heard, the detector is
reacting to a fire alarm (primary or secondary).
The LED indicator flashes, and a short beep is heard once every 30 seconds to indicate
low battery or trouble condition.
If a fire alarm is activated, press the cover up firmly (see Testing the detector) to silence the
alarm and temporarily disable (for approx. 10 minutes) the alarm activation.
Detector Operation Modes
The Smoke & Heat detector can be set to one of the following operatin modes:
•Smoke only*
•Heat only
•Smoke and Heat
Installer Menu > Zones > Characteristics > <Zone #) > Wireless Zone
Refer to Programming Guide for the FORCE and VISION Alarm Systems for more
information about defining detector parameters.
* NOTE: Only the “Smoke Operation Mode” is approved to EN14604.
Testing the detector
To ensure that your detector is functioning correctly, test it once a week using the
following procedure:
1. Press the cover up firmly (see Figure 12). If the detector is functioning correctly, a fire
alarm is activated (see Visual / Audible Indicators) and an alert message is sent to the
system receiver.
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NOTE: A short beep once every 30
seconds indicates that the test is
unsuccessful.
You must have the detector repaired
or replaced immediately.
Figure 12
2. Release pressure to restore the alarm activation.
NOTES:
1. It is recommended to press the center of the detector for the quick test results.
2. If you wish to perform a spray test, the spray must be at 20 cm away from the
detector. Press on the spray continuously for at least 5 seconds; the LED will flash
every second for 25 seconds followed by alarm activation.
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Cleaning and Maintenance
Clean the detector with a dry or damp cloth to remove dirt or dust.
To clean the detector:
1. Remove the detector from the mounting bracket.
2. Open the battery cover and disconnect the battery.
3. Open the detector housing and disconnect the PCB from the holding snaps.
4. Use a paintbrush to remove any dirt and reconnect the PCB.
5. Close the housing, reconnect the battery and replace the battery cover.
6. Reconnect the detector to the mounting bracket
7. Check if the detector is functioning properly.
To ensure the detector continues to function properly, you must test it once a week (see
Testing the detector).
To replace the detector batteries:
1. Remove the detector from the plastic mounting bracket.
2. Open the battery compartment cover.
3. Remove the old batteries.
4. Insert the new battery while observing battery polarity (see Figure 11), and close
the battery compartment cover.
5. Reconnect the detector to the mounting bracket.
Replace the batteries once a year or whenever the low battery signal tone sounds.
NOTE:
Low battery signal tone - If the detector beeps once every 30 seconds, the detector’s
batteries are low.
Replace the batteries immediately. After you reconnect the detector to the mounting
bracket, you need to check the smoke alarm (see Testing the detector).
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Technical Specification
Parameter
Description
Smoke Alarm
Photoelectrical chamber with optical sensor for
detecting smoke
Heat detector
4 sensors for measuring temperature increase, alarm
will be triggered at 60°C
Operating modes
Smoke + Heat (OR Logic), Only Smoke, Only Heat
Indicators
Audible (Piezo) and visual (LED)
Volume of the warning
Min. 85 dB at 3m (10’)
Sound frequency
3.25 kHz
Power Supply
CR123A 3V x 4
Standby power consum.
0.02mA (typical)
Alarm power consum.
100mA
Battery life
4 years (typical)
Low battery threshold
2.65 V
In event of low battery
One beep every 30 seconds
Operating temperature
0°C to 55°C
Humidity during operation
10% to 85% RH, no condensation or icing
Color
White
Dimensions (D x H)
Ø 133.8 x 50.2 mm (Ø 5.27 x 1.98’)
Weight
360 g (net)
Supervision monitoring
1-255 min. (user defined)
Wireless trans. Power
10mW
Wireless range
Up to 300m (unobstructed)
Standards Compliance
EN14604:2005/AC:2008.
NOTE: Only the “Smoke Operation Mode” is
approved to EN14604.
Ordering Information
Model
Frequency
P/N
DSH743
433MHz
8842202
DSH786
868MHz
8842203
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Limited Warranty
PIMA Electronic Systems Ltd. does not represent that its product may not be
compromised and/or circumvented, or that the Product will prevent any death, personal
and/or bodily injury and/or damage to property resulting from burglary, robbery, fire or
otherwise, or that the Product will in all cases provide adequate warning or protection.
The User understands that a properly installed and maintained equipment may only
reduce the risk of events such as burglary, robbery, and fire without warning, but it is not
insurance or a guarantee that such will not occur or that there will be no death, personal
damage and/or damage to property as a result.
Read this guide in its entirety before attempting to program or operate your system. Should
you misunderstand any part of this guide, please contact the supplier or installer of this
system. Copyright © 2020 PIMA Electronic Systems Ltd. All rights reserved. E&OE
Contacting PIMA
PIMA Electronic Systems Ltd.
www.pima-alarms.com
5, Hatzoref Street, Holon 5885633, Israel
Tel: +972.3.6506414
Fax: +972.3.5500442
All rights reserved.
No part of this document may be reproduced in any form without prior written
permission from the publisher.
© PIMA 05/2022 4412991-A
5IN2991-A
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