Autronica AutroSense Micra 10 User manual

0
AutroSense Micra 10
Aspirating Smoke Detector
Installers Handbook
P/N 10-3519-505-AE10-01 (EN) • REV 03 • ISS 16NOV15

Copyright
© 2015 UTC Fire & Security. All rights reserved.
Contact information
For contact information, see www.airsensetechnology.com.
European regulations for construction products
This section includes both regulatory information and a summary on the declared
performance according to the Construction Products Regulation 305/2011. For
detailed information refer to the product Declaration of Performance (DoP).
Certification
Certification body 0370
Manufacturer UTC CCS Manufacturing Polska Sp. Z o.o.
Ul. Kolejowa 24. 39-100 Ropczyce, Poland
Authorized EU manufacturing representative:
UTC Fire & Security B.V. Kelvinstraat 7, 6003 DH Weert,
Netherlands
Year of first CE marking 15
Declaration of Performance
number
360-3519-0299
EN 54 EN 54-20: 2006
Product identification See model number on product identification label
Intended use See DoP point 3
Essential characteristics See DoP point 9

AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook i
Content
Important information iii
Advisory messages iv
EN 54-20 and UL installation v
Chapter 1 Product and component descriptions 1
Introduction 2
Available software for the detector 2
Specifications 3
Indicators 4
Inside the detector 5
Removable terminal block connections 6
Chapter 2 Installation and configuration 7
Introduction 8
Antistatic precautions 8
General installation guidelines 10
Docking station 10
Application 12
System design 12
Installation 17
Interfacing with fire alarm panels 21
Setting the detector address 23
Final installation 25
Removing the detector 26
Configuring the detector after installation 26
Connecting to a PC 28
Event log 30
Chapter 3 Commissioning 31
Introduction 32
Commissioning checklist 32
Precommissioning preparation 34
Acclimation period 34
Transport time verification 34
ASD System Performance Tests 34
Chapter 4 Troubleshooting 35
Troubleshooting the detector 36
Chapter 5 Maintenance 39
Introduction 40
Scheduled maintenance 40
Maintenance procedures 41

ii AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
Glossary 45
Index 47

AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook iii
Important information
Regulatory information
This equipment is Class III as defined in EN 60950 (i.e., this equipment is
designed to operate from Safety Extra Low Voltages and does not generate any
hazardous voltages).
As this equipment is part of a fire detection system, input power should be
supplied from an approved power supply conforming to EN 54-4 or UL/ULC and
FM3230 standards.
In order for the installation to conform to EN 54-20, pipes must conform at least
to EN 61386-1 Class 1131.
This product has been designed to meet the following requirements:
•NFPA 72 National Fire Alarm and Signaling Code
•UL 268 Smoke Detectors for Fire Alarm Signaling Systems
•UL 268A Smoke Detectors for Duct Applications
•UL 864 Control Units for Fire Protective Signaling Systems
•CAN/ULC-S524 Installation of Fire Alarm Systems
•ULC S527 Control Units for Fire Alarm Systems
•CAN/ULC-S529 Smoke Detectors for Fire Alarm Systems
System reacceptance test after reprogramming (UL/ULC and FM3230): To
ensure proper system operation, this system must be retested in accordance with
NFPA 72 after any programming change. Reacceptance testing is also required
after any addition or deletion of system components, and after any modification,
repair, or adjustment to system hardware or wiring.
Limitation of liability
To the maximum extent permitted by applicable law, in no event will UTCFS be
liable for any lost profits or business opportunities, loss of use, business
interruption, loss of data, or any other indirect, special, incidental, or
consequential damages under any theory of liability, whether based in contract,
tort, negligence, product liability, or otherwise. Because some jurisdictions do not
allow the exclusion or limitation of liability for consequential or incidental
damages the preceding limitation may not apply to you. In any event the total
liability of UTCFS shall not exceed the purchase price of the product. The
foregoing limitation will apply to the maximum extent permitted by applicable law,
regardless of whether UTCFS has been advised of the possibility of such
damages and regardless of whether any remedy fails of its essential purpose.
Installation in accordance with this manual, applicable codes, and the instructions
of the authority having jurisdiction is mandatory.

iv AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
While every precaution has been taken during the preparation of this manual to
ensure the accuracy of its contents, UTCFS assumes no responsibility for errors
or omissions.
Advisory messages
Advisory messages alert you to conditions or practices that can cause unwanted
results. The advisory messages used in this document are shown and described
below.
WARNING: Warning messages advise you of hazards that could result in injury
or loss of life. They tell you which actions to take or to avoid in order to prevent
the injury or loss of life.
Caution: Caution messages advise you of possible equipment damage. They tell
you which actions to take or to avoid in order to prevent the damage.
Note: Note messages advise you of the possible loss of time or effort. They
describe how to avoid the loss. Notes are also used to point out important
information that you should read.
Product Symbols
This symbol appears on the main board of the unit and indicates that the
board contains static sensitive components.
This label is located on the laser chamber at the bottom right of the open
detector and signifies that the unit is a Class 1 Laser product as specified
in IEC 60825-1. The unit incorporates a Class 3B embedded laser which
must not be removed from the detector, as retinal damage may result if
the laser beam enters the eye.
This symbol indicates the Safety ground studs. These are for grounding
cable screens, etc., and should not be connected to 0V or signal earth.

AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook v
EN 54-20 and UL installation
The installation must be designed using PipeCAD software. After designing the
installation including pipes, endcaps, and sampling holes, enter the detector type.
To select the detector type, click Options > Calculation options, and then select
the detector from the Type drop-down list.
EN 54-20 installation
Select Options > Calculate, or click on the calculator icon. The software will
prompt you to choose from Use set hole sizes, Best flow balance, and Max.
permissible transit time. Select the appropriate option and click OK. The results
for each pipe (View > Results) show calculations for each sampling hole on the
pipe with the nearest to the detector at the top of the screen, and the endcap
hole at the bottom.
For EN 54-20 compliance the transport time of the last sampling hole shall be
checked following all installation and proven to be less than or equal to that
determined by PipeCAD.
For the installation to comply with EN 54-20 Classes A, B, and C each sampling
hole must be no less sensitive than 0.31% obs/m.
The calculation can be further refined by leaving a working detector in the
protected area for at least 24 hours at the intended alarm factor for the
installation (this could be done before or after installation). The detector
sensitivity can be read from the Sensitivity figure on the histogram screen of the
Remote Control software supplied with each detector. Click Options > Calculation
options to open the Hole calculation options dialog box. Enter the sensitivity
value obtained from the practical test, and then click OK. The new calculated
value will use the real sensitivity from the practical test.
The PipeCAD software will determine the classification of any used configuration.
Commissioning and periodic system tests must involve smoke tests to verify that
the system performs as expected and enters Fire 1 alarm within the time
determined by PipeCAD from the farthest hole. The detector sensitivity must also
be inspected to ensure it has not radically fallen from the installed figure. If it has
changed for any reason, the new figure must be re-entered into PipeCAD and the
recalculated hole sensitivities must be confirmed to be within the class limits
shown above. The settings of a compliant system should be recorded, as it is
possible by changing certain programmable functions to make the system
noncompliant. If functions are changed, it is recommended that the system is
retested if continuing compliance is in any doubt.
UL installation
Note: UL certified products may also contain additional approvals, e.g. FM3230.
Please refer to the product labels.

vi AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
UL 268 fire tests were passed with an installation as follows:
Total sampling pipe length: 160 ft. (single pipe)
Number of sampling holes: 10
Worst-case sampling hole sensitivity as indicated by PipeCAD:
1.28% obs/ft.*
Alarm factor: 1
Fire 1 alarm delay: 0 seconds
These settings gave satisfactory responses to the test fires in 120 seconds or
better. For the purposes of UL 268 compliance, these should be regarded as
worst case values. Layouts should be planned in PipeCAD and the indicated
worst-case hole sensitivity should be better than 1.28% obs/ft.*. Commissioning
smoke tests should be performed to ensure that the farthest sampling hole from
the detector is capable of generating a fire alarm within 120 seconds of receiving
smoke.
* The results should be verified at installation by entering the installed detector's
Fire 1 sensitivity (as indicated in the remote software histogram screen) into the
PipeCAD “Options/Calculation options/Detector sensitivity” field and recalculating
the layout results.

AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook 1
Chapter 1
Product and component
descriptions
Summary
This chapter provides descriptions of the detector features, specifications, and
controls and indicators.
Content
Introduction 2
Available software for the detector 2
Specifications 3
Indicators 4
Inside the detector 5
Removable terminal block connections 6

Product and component descriptions
2 AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
Introduction
This aspirating detector is a highly sophisticated next generation high sensitivity
aspirating smoke detection product that provides all the benefits of air sampling
high sensitivity smoke detection, including very early warning. Designed for easy
installation and commissioning, the detector incorporates a patented artificial
intelligence known as ClassiFire, which allows the detector to configure itself to
optimum sensitivity, alarm thresholds, and minimum nuisance alarms for various
environments.
This detector operates by drawing air from a protected space via a supervised
piping network in relatively small areas. The sampled air is passed through a
dust separator (filter) to remove dust and dirt before entering the laser detection
chamber. State-of-the-art electronics are used to analyse the sampled air and
generate a signal representing the level of smoke present.
ClassiFire intelligence also monitors the detector chamber, continually adjusting
the appropriate operating parameters to counteract the negative effects of any
contamination. Aspirating smoke detectors are unique in being able to provide a
consistent level of protection in a very wide range of environments by
continuously making minor adjustments to sensitivity.
Available software for the detector
The Remote Control software package is available to program the detector.
•Remote Control software: Provided free of charge with every detector, this
software package enables the user to set up and configure the programmable
functions of one or more detectors from a computer connected via an RS-232
serial cable.

Product and component descriptions
AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook 3
Specifications
Caution: This equipment is only to be used in accordance with these
specifications. Failure to operate the equipment as specified may cause damage
to the unit, injury, or property damage.
Table 1: Specifications
Specification Value
SELV rating EN 60950 Class III
Supply voltage 21.60 to 26.40 VDC
PSU Type: conforming to EN 54-4
Electrical safety complies with BS EN 610190-1
Size 145 W × 220 H × 90 D mm
(5.7 W × 8.6 H × 3.5 D in.)
Weight 1.7 kg (3.75 lbs.) with docking station
Operating temperature range −10 to +60ºC (EN 54-20)
32 to 100°F (0 to 38°C) (UL 268, CAN/ULC-S529,
FM3230)
Operating humidity range 0 to 90% Noncondensing
BS EN 61010-1 Pollution degree 1
BS EN 61010-1 Installation category II
Sensitivity range
(%obs/ft.)
(%obs/m)
Min. = 7.62%, Max. = 0.00914% FSD
Min. = 25%, Max. = 0.03% FSD
Maximum sensitivity resolution 0.0015% obs/m (0.00046% obs/ft.)
Detection principle Laser light scattering mass detection
Particle sensitivity range 0.0003 µm to 10 µm
Current consumption 250 mA
Relay contact rating 500 mA at 30 VDC
Optional relay input card contact rating 1 A at 24 VDC
Maximum sampling pipe length 50 m (165 ft.) total
Sampling pipe inlets 1
Sampling pipe internal diameter 3/4 in. (ID) or 27 mm (OD)
Alarm levels 4 (Fire 2, Fire 1, Pre-Alarm and Aux)
1 relay as standard, others available
Chamber service intervals Greater than 8 years (depending on environment)
Dust separator (filter) replacement
intervals
Greater than 5 years (depending on environment)
Laser lifetime (MTTF) Greater than 50 years
Programming PC via RS-232
IP rating IP50

Product and component descriptions
4 AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
Indicators
Figure 1 shows the three indicators on the detector.
Figure 1: Detector indicators
(1) Fire: Illuminates when the alarm level has been reached and the appropriate time delays
have expired.
(2) Fault: Illuminates when the unit has a fault and fault signal is being sent to the fire alarm
panel. It also illuminates when the unit is isolated.
(3) OK: Illuminates to show normal operation when there are no faults. The OK lamp will flash
during the 15-minute FastLearn period when the detector is first learning about its
environment.
Fire
Fault
OK
(1)
(2)
(3)

Product and component descriptions
AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook 5
Inside the detector
Figure 2 shows the main interior parts of a detector with the cover off.
Figure 2: Detector interior view (EN/UL certified models)
(1) Removable terminal block connections
(2) Filter (dust separator)
(3) RS-232 serial port
(4) Detector address DIP switch
(5) Addressable Programmable Interface Card (APIC) or Relay Card port
(6) Internal cover (UL certified models only)

Product and component descriptions
6AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
Removable terminal block connections
Figure 3 shows the terminal block connections that connect the detector to other
electronic components.
Figure 3: Detector terminal block connections
(1) Fault relay contacts (Open = FAULT)
(2) Fire relay contacts (Closed = FIRE)
(3) APIC addressable bus connections for use in conjunction with interface card
(4) Connections are not applicable for Micra 10
(5) Power supply connections

AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook 7
Chapter 2
Installation and
configuration
Summary
This chapter provides information necessary to install and configure the detector
system.
Content
Introduction 8
Antistatic precautions 8
General installation guidelines 10
Docking station 10
Application 12
System design 12
Below or above the ceiling installations 14
Installation 17
Mechanical installation 17
Removing the front cover 17
Electrical installation 17
Relay connections 20
Interfacing with fire alarm panels 21
Connecting a detector to an APIC 22
Setting the detector address 23
Address table
23
Final installation 25
Removing the detector 26
Configuring the detector after installation 26
List of programmable functions 27
Connecting to a PC 28
Event log 30

Installation and configuration
8 AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
Introduction
This topic provides information necessary to install the detector system.
To install the detector:
1. Unpack the shipping carton. Ensure that the package contains a CD-ROM,
two ferrite rings, two cable glands, and the unit.
2. Determine the optimum location for the detector.
3. Mount the APIC or Relay Card inside the detector, if required.
4. Mount the docking station.
5. Connect the docking station to the sampling pipe network.
6. Mount the detector to the docking station.
Installation should only be done by trained technicians.
Note: Each relay card is supplied with a RF suppression ferrite ring. To ensure
compliance with all relevant EMC requirements, conductors connected to the
fault output (included screen wire) should be wound once around a ferrite.
Installation should be in accordance with applicable installation requirements.
These include:
•NFPA-70, National Electrical Code
•NFPA-72, National Fire Alarm and Signaling Code
•CSA C22.1 Canadian Electrical Code, Part 1
•CAN/ULC-S524 Installation of Fire Alarm Systems
•Any other local, national, or installation requirements or standards.
WARNING: Electrocution hazard. All connections should be made with the
power turned off.
Antistatic precautions
This system contains static-sensitive components. Always ground yourself with a
proper wrist strap before handling any circuits. This recommendation must be
followed when removing the equipment case, and during installing and servicing.
Caution: When handling any electric components or printed circuit boards,
antistatic precautions must be followed. Failure to do so may result in component
damage.
Electro-static discharge can be reduced by adhering to the following guidelines:
•Always use conductive or antistatic containers for transportation and storage,
if returning any item.
•Wear a wrist strap while handling devices and ensure that a good ground is
maintained throughout the installation process.

Installation and configuration
AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook 9
•Never subject a static sensitive device to sliding movement over an
ungrounded surface and avoid any direct contact with the pins or
connections.
•Avoid placing sensitive devices onto plastic or vinyl surfaces.
•Minimise the handling of sensitive devices and printed circuit boards (PCBs).

Installation and configuration
10 AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
General installation guidelines
The following is a brief set of guidelines on installing detectors:
•The detector should normally be mounted at a level where there is easy
access to the RS-232 serial port for configuration and programming.
•The exhaust air from the unit must not be impeded in any way. If the unit is
mounted where the air pressure differs from the sampling location (for
example an air duct), then a pipe must be routed from the exhaust port back
to the same air pressure zone as the sampling holes.
•Sampling holes should be free from burrs and swarf.
•All signal cables must be suitable for the application. The specific type of
cable will normally depend upon the local fire regulations.
•The unit must not be placed in areas where either the temperature or humidity
is outside the specified operating range.
•The unit should not be placed in close proximity to any equipment expected to
generate high levels of radio frequency signals (such as radio alarms) or units
generating high levels of electrical energy (such as large electric motors or
generators).
Docking station
The basic principle behind the easy installation of the detector is that all wiring
and pipework is installed using a docking station. This is a convenient feature
that allows the detector to be dismounted or replaced without disturbing any
wiring or installed pipework.
The docking station inlet (sampling) port and exhaust port is used to interface
with the pipe network. The inlet port is used for aspirating the pipework network.
The exhaust port allows the detector exhaust air to be routed back to the
sampling area, when differing atmospheric pressures require this. (Refer to
Figure 4.)

Installation and configuration
AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook 11
Figure 4: Docking station
(1) Cable gland
(2) Earth stud
(3) Exhaust port
(4) Sampling port
(5) Mounting screw holes

Installation and configuration
12 AutroSense Micra 10 Aspirating Smoke Detector Installers Handbook
Application
This detector is a smoke detector intended to provide localised incipient fire
detection. It is suitable for use in a wide range of applications, such as small non-
compartmentalised rooms, warehouse racking, or pieces of electronic or
electromechanical equipment where it is desirable to achieve individual incipient
fire reporting. In compartmentalised rooms, each compartment would normally
use individual aspirating detectors.
The detector employs a low-power aspirator (fan) designed to detect incipient
fires in relatively small areas. The detector is not intended to protect large areas,
or to sample from areas where there may be any difference in airflow rates or
pressure differentials. If detection in environments conforming to these
descriptions is required, other type detectors should be used.
System design
Simple designs with short sampling pipes produce the best results. Complex
sampling pipe runs should be avoided with the detector. The use of
T-branch pipes is not recommended. Maximum recommended sampling pipe
length is 50 m (165 ft.) in still air. If the protected area has airflow present, the
maximum permitted sampling pipe length will be reduced.
Note: PipeCAD pipe modeling software must be used when designing a pipe
network and verifying its performance. Refer to the PipeCAD System Design and
Installation User Guide for complete instructions on how to design and install an
air sampling pipe network.
In order for the installation to conform to EN 54-20, pipes must conform at least
to EN61386-1 Class 1131.
Sampling pipes must have capped ends. The end cap should be drilled with a
hole normally between 4 or 5 mm diameter and free from burrs. Sampling holes
should normally be 3 to 4 mm diameter or as calculated by PipeCAD, and free
from burrs. Each pipe run should not have more than 10 holes (including the end
cap hole). Pipe transit time from the furthest sampling hole from the detector
must not exceed 120 seconds and an approved type of pipe must be used. It is
strongly recommended that the smoke transit time from the furthest sampling
hole be checked during commissioning tests.
Capillary remote sampling points may be used in place of sampling holes.
Always locate the sampling points in positions to which smoke may reasonably
be expected to travel. It is usually better to locate the sampling pipe directly in the
airflow (for example, across the return air register of an air conditioning unit).
Note: There is no substitute for carrying out smoke tests prior to installation of
pipework to indicate suitable sampling point location.
Table of contents
Other Autronica Smoke Alarm manuals
Popular Smoke Alarm manuals by other brands

Smanos
Smanos SMK-500 user manual

Fire-Lite Alarms
Fire-Lite Alarms D350PL Installation and maintenance instructions

Simplex
Simplex 4010ES Operator's manual

Andrew James
Andrew James digital fork thermometer user manual

Edwards
Edwards EST EDW2151A Installation and maintenance instructions

Avidsen
Avidsen HomeSmoke user guide