Kidde AirSense Stratos Micra 25 Installer's Handbook
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Kidde AirSense Stratos Micra 25 Installer's Handbook

High sensitivity smoke detector
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www.acornfiresecurity.com
High Sensitivity Smoke Detector
Installer's Handbook
LM 80022 • Issue 16
www.acornfiresecurity.com

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Summary of Contents for Kidde AirSense Stratos Micra 25

  • Page 1 www.acornfiresecurity.com High Sensitivity Smoke Detector Installer’s Handbook LM 80022 • Issue 16 www.acornfiresecurity.com...

  • Page 2: Table Of Contents

    Do’s and Don’ts Stratos-Micra 25 Specification Reproduction of this document is strictly prohibited unless written permission is obtained from Kidde Products Ltd. Stratos, HSSD, Micra, ClassiFire and Stratos-Quadra are registered trademarks of Kidde Products Ltd. Stratos-Ex, FastLearn, PipeCAD, LDD and SenseNET are trademarks of Kidde Products Ltd.

  • Page 3: Introduction

    0V or signal earth. Kidde Products Ltd. has taken every care to ensure that Stratos-Micra is as simple to install as possible but in case of difficulty, please contact our Help Line to ensure trouble free installation and operation.

  • Page 4: Indicators

    www.acornfiresecurity.com 1. Indicators Fire indicator illuminates when the alarm level has been reached and the appropriate time delays have expired. Fault. Illuminates when the unit has a fault and a fault signal is being sent to the fire alarm panel. OK.

  • Page 5: Inside The Detector

    www.acornfiresecurity.com 2. Inside the Detector 2.1 Interior view Removable terminal blocks (see section 2.2) Filter (see section 10) Addressable bus interface card (APIC) port (see section 7.3) Detector address DIP switch (see section 7.1) RS232 serial port (see section 7.4) Page 5 Stratos-Micra •...
  • Page 6 www.acornfiresecurity.com 2.2 Detector terminal block connections FAULT relay contacts (Open = FAULT) (see section 6.2.3) FIRE relay contacts (Closed = FIRE) (see section 6.2.3) APIC addressable bus connections for use in conjunction with interface card (see sections 6.2.2 and 7.3) RS485 / SenseNET connections (see sections 6.2.2 and 7.2) Power supply connections (see section 6.2.1) Page 6...

  • Page 7: Programming The Detector

    www.acornfiresecurity.com 3 Programming The Stratos-Micra may be programmed from a PC when connected to the detector the Detector via a standard 9-pin serial lead connected to the serial port of the computer and the 9 way socket at the base of the detector (see section 7.4, ‘Connecting to a PC’). In order to do this, it is necessary to install the remote control software onto the compu- ter.
  • Page 8 www.acornfiresecurity.com 3.1 Time and date – Time and Date It is important that the time and date be set up correctly on the controller’s internal calendar/clock because it uses this information to store events in the event log. See section 8, “Event log” for more details. Unless specially ordered, units are supplied with the correct setting for UK time.
  • Page 9 Alarm levels and delays If the detector is in FastLearn mode, unticking this box will stop the FastLearn process. Using the function in this way is neither recommended nor supported by Kidde Products Ltd. Ticking the box will start a FastLearn at any time. The green “OK” LED on the front of the detector will flash for the fifteen minutes that it takes for the FastLearn process, and will then change to constant illumination to indicate that the FastLearn is complete.
  • Page 10 www.acornfiresecurity.com 3.9 ClassiFire 3D - Alarm levels and delays If this function is ticked, then the detector will ignore any pre-set time delays in the event of a rapid increase in smoke density, thereby minimising response time to 'rapid growth' fires. This function would normally only be used where there were long time delays programmed on the alarm levels.
  • Page 11 www.acornfiresecurity.com 3.14 Remote Reset – tab, subgroup Alarm actions Remote input This function allows latching alarms or faults (see sections 3.17 and 3.18) to be remotely reset when the relevant activating terminals are shorted together by volt-free contacts. When the function is enabled, entering a value of 01, 02 or 03 to the numeric field to the left of the tick-box assigns the “I/P 1”, “I/P 2”...
  • Page 12 www.acornfiresecurity.com 3.18 Latching faults – Alarm actions When this function box is ticked it requires a reset signal to clear a fault condition. Reset can be remote (see section 3.14), from the Remote Software (see section 4.1) or from a Command Module. If unticked, the fault signal is extinguished as soon as the fault condition ends.
  • Page 13 www.acornfiresecurity.com 3.27 Reference level – Referencing The value set with this function is the percentage reference signal subtracted from the detector’s signal, if a reference device has been allocated. The default value is 0. 3.28 Reference back-off – Referencing This value is the delay time between a build up of pollution being seen by the reference (if used) and the pollution being seen by the detector.
  • Page 14 www.acornfiresecurity.com If documented figures are unavailable for the fire panel reaction time, compliance with reaction time regulations may only be verified by post-installation testing. 3.33 Access code – Miscellaneous This is the access code required to amend programmable parameters. The default code is 0102.

  • Page 15: Other Remote Software Features

    www.acornfiresecurity.com 3.35 Separator condition – Miscellaneous The value given at this function is the efficiency rating of the dust separator element in the detector as a percentage of the efficiency of a clean separator. A new element will give a reading of 99 in this function. When the efficiency has decreased to 80%, the Fault indicator LED will illuminate and the event log will show “Separator renew”.
  • Page 16 www.acornfiresecurity.com 4.2 Histogram screen The histogram screen shows various aspects of the detector function. To enter the histogram screen, either select the menu options “View ‘ Histogram viewer…” or click the symbol indicated below. The following screen appears: Smoke density histogram Alarm flags There are two types of smoke density histogram;...
  • Page 17 www.acornfiresecurity.com picked up by the fast histogram so that early warning is given. Sensitivity: The current absolute sensitivity of the detector in percentage obscura- tion per metre (% obs/m) Mean: The current mean value of smoke density, taken from the currently “active” histogram and given as a percentage of full scale deflection.
  • Page 18 www.acornfiresecurity.com The following screen appears: The red trace is the current alarm level and the black trace is the detector output. By moving the cursor along the chart, the “Chart information” window (shown at the bottom left) updates to show the date and time, detector level and alarm level of the relevant period.
  • Page 19 www.acornfiresecurity.com Click on the “List files of type” drop-down box and select “Detector settings (*.dfs)” as indicated below. A list will appear of all detector settings files stored on the current drive. As a special case, if desiring to recall the factory default settings, there is a file named ‘default. dfs’...

  • Page 20: Design Limitations

    www.acornfiresecurity.com 5. Design Stratos-Micra is intended to provide LOCALISED incipient fire detection only. This Limitations means that it is suitable for the substantial range of applications typified by; small non-compartmentalised rooms, warehouse racking, or pieces of electronic or electromechanical equipment where it is desirable to achieve individual incipient fire reporting.
  • Page 21 www.acornfiresecurity.com (A.) Above ceiling Sampling hole sampling with exposed detector Note: The piped exhaust docking station needs to be used in this case. False ceiling Exhaust pipe Stratos-Micra Above ceiling sampling Sampling hole with detector mounted in ceiling void Stratos-Micra False ceiling Page 21 Stratos-Micra •...
  • Page 22 www.acornfiresecurity.com 5.1 System Design Simple designs with short sampling pipes produce the best results. Complex sampling pipe runs should be avoided with the Stratos-Micra detector. The use of ‘T’ branch- pipes is not recommended. To assist in design and to verify system performance, it is advisable to use the PipeCAD ®...
  • Page 23 www.acornfiresecurity.com The installation must be designed using PipeCAD software, which is provided free EN54-20 and on the CD shipped with each detector. After designing the installation including UL compliance pipes, endcaps and sampling holes, enter the detector type. To select the detector type, select Options, select Calculation options, and then select the detector from he Type drop-down list.

  • Page 24: Installation

    www.acornfiresecurity.com 6. Installation Before installing the detector the local standards for installation of aspirating detection systems must be consulted as these standards differ throughout the world. Specific advice for one country may not be applicable to another. The following is a brief set of guidelines on installing detectors.
  • Page 25 www.acornfiresecurity.com 6.1.2 Mechanical installation The docking station is connected to the installed sampling pipe-work and fixed to the wall or mounting surface using 3 off screws of a type appropriate to the mounting surface. Ensure that the sampling and/or exhaust pipes are securely seated in the pipe ports before fixing.
  • Page 26 www.acornfiresecurity.com 6.2.2 Signal connections APIC address RS485/SenseNET terminals terminals To connect the signal wire, lead a suitable wire type (RS485 cable 9841, 120 ohm screened twisted pair or equivalent) through the second cable gland and tighten it into position with about 35mm of cable from the bottom of the cable gland. Remove either the three-way terminal block next to the power supply socket if con- necting the detector to a SenseNET system, or the four-way “Bus”...
  • Page 27 www.acornfiresecurity.com 6.2.3 Relay connections The Stratos-Micra 25 is fitted as standard with a Fire relay (corresponding to the FIRE 1 alarm level), which closes on alarm, and a general Fault relay, which opens on any fault condition or on power-down. The relays are of the volt-free type, with a maximum current capacity of 500mA at 30V DC.
  • Page 28 www.acornfiresecurity.com 6.3 Final installation Once the power and signal connections are made, slide the detector body up into the docking station and fasten it into position using the M4 pan head screws provided. Slot the power and signal terminal blocks into the relevant sockets on the detector PCB (they will only click fully home in the correct orientation) and replace the detector cover using the four M3 pan head screws provided.

  • Page 29: Interfacing

    www.acornfiresecurity.com 7. Interfacing Because of the flexible nature of the Stratos-Micra ® detector and the many possible configurations, there are many options for interfacing the detectors to the Fire Panel. These include many third party interfaces available from various manufacturers. Because of this, it is not possible to give a complete list of all interfacing methods but the following pages will give details of the most common methods that are likely to be used.
  • Page 30 www.acornfiresecurity.com 7.1.2 Address table Addresses chosen for detectors do not have to be consecutive or in a given order so long as they are all different. ADDRESS Page 30 Stratos-Micra • INSTALLER’S HANDBOOK • Iss. 16 www.acornfiresecurity.com...
  • Page 31 www.acornfiresecurity.com 7.2 Connecting a Stratos-Micra to a SenseNET/RS485 detector network RS485 1A RS485 1A RS485 1A RS485 1B RS485 1B RS485 1B SCRN SCREEN 1 SCREEN 1 RS485 2A RS485 2A RS485 2A RS485 2B RS485 2B RS485 2B SCRN SCREEN 2 SCREEN 2 Command...
  • Page 32 www.acornfiresecurity.com 7.3 Connecting a Stratos-Micra to an addressable Fire Panel An Addressable Protocol Interface Card (APIC) may be used to decode detector infor- mation and to relay this to a Fire Panel. The APIC is fitted to the four mounting studs on the Stratos-Micra PCB using the sup- plied screws as shown below: Mounting studs x 4...
  • Page 33 www.acornfiresecurity.com 7.4. Connecting To connect a single stand-alone detector to a PC, connect the PC‘s serial port directly to a PC to the detector‘s 9-way RS232 port. Connections for this cable are shown below. 9 pin female ‘D‘ 9 pin female ‘D‘ connector connector Serial port...

  • Page 34: Event Log

    www.acornfiresecurity.com 8. Event Log An event is defined as • a change to any programmed function • a signal received from an external controller such as the remote software, APIC or SenseNET • a detector output level meeting or exceeding the Pre-Alarm, Aux, Fire 1 or Fire 2 alarm thresholds •...
  • Page 35 www.acornfiresecurity.com This shows the time and date of each event stored in the log along with its general description. The buttons at the bottom of the screen allow control over the input and output of the log. Open: opens a previously saved event log. Event logs have the file extension “.evl”.

  • Page 36: Commissioning

    www.acornfiresecurity.com 9. Commissioning Before commissioning the detector the local standards of aspirating detection systems must be consulted. These standards differ widely throughout the world and specific advice for the market in one country may not be applicable to another. Commissioning strategy will initially depend upon the environment in which the detector is installed.

  • Page 37: Maintenance

    www.acornfiresecurity.com 10. Maintenance Stratos-Micra is a very low maintenance detection system. If required, external cleaning of the unit should be performed using a damp (not wet) cloth. Do not use solvents as these may mar the front panel label. The only part that may require field replacement during servicing is the dust separator assembly*.
  • Page 38 www.acornfiresecurity.com 10.1 Diagnostics The remote control software includes a diagnostic function which carries out a number of checks to verify the correct functioning of the detector. A good time to run these tests is as a part of planned maintenance. To call up diagnostic mode, select the menu options “View ‘...
  • Page 39 www.acornfiresecurity.com When the test has finished and no problems have been found, the following screen appears: If any problems were found during the diagnostic tests, the nature of the fault will be indicated in the “Status” column. Scan: Reads in the status of all connected detectors. Read Button: This brings up a display of the detector output and flow rate which updates in real time.

  • Page 40: Troubleshooting

    www.acornfiresecurity.com 11. Troubleshooting 11.1 Nuisance alarms occur too often • Check that the ClassiFire alarm factor setting is appropriate for the normal working environment of the protected area. See section 3.5 Check that the detector is not in Demonstration mode. This can be ascer- •...
  • Page 41 www.acornfiresecurity.com 11.6 Flow fault errors • These occur when the airflow rate into the detector is outside the pre-programmed limits. As the detector ‘learns‘ the flow setup from the initial installation, this usually means that there has been some change in conditions. A Flow high fault may indicate that a sampling pipe is damaged, and a Flow low fault may indicate that the pipe has been blocked, e.g.

  • Page 42: Do's And Don'ts

    www.acornfiresecurity.com 12. Do’s and Don’ts Ensure that the ClassiFire alarm factor is appropriately set. Ensure that cables are correctly connected before powering up by use of cable identifiers or electrical continuity checks. Incorrect connection could damage the detector. Ensure that cable of an appropriate approved type is used for interconnection. Place sampling points so that the detector will be able to detect smoke at the earliest opportunity.

  • Page 43: Stratos-Micra 25 Specification

    www.acornfiresecurity.com 13. Stratos-Micra SELV rating (EN 60950) Class III specification Supply Voltage 21.6V - 26.4V DC PSU Type: conforming to EN 54-4 Electrical safety complies with BS EN 610190-1 Size (mm) 145W x 220H x 90D Weight 1.7kg with docking station Operating temperature range 0 to +38°C (UL268) –10 to +60°C (EN54-20)
  • Page 44 www.acornfiresecurity.com www.acornfiresecurity.com...

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