Kidde AirSense Stratos Micra 25 User Manual Download

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Installer’s Handbook

LM 80022 • Issue 1

High Sensitivity Smoke Detector

www.acornfiresecurity.com

Summary of Contents for AirSense Stratos Micra 25

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

Page 2: ...enance 37 11 Troubleshooting 40 12 Do s and Don ts 42 13 Stratos Micra 25 Specification 43 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 Copyright 2011...

Page 3: ...te from Safety Extra Low Voltages and does not generate any hazardous voltages This label is located on the laser chamber 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 If this equipment is part of a fire detec...

Page 4: ...have expired Fault Illuminates when the unit has a fault and a fault signal is being sent to the fire alarm panel 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 1 2 3 1 2 3 www acornfiresecurity com www acornfiresecurity com ...

Page 5: ... 1 Interior view 1 Removable terminal blocks see section 2 2 2 Filter see section 10 3 Addressable bus interface card APIC port see section 7 3 4 Detector address DIP switch see section 7 1 5 RS232 serial port see section 7 4 1 5 www acornfiresecurity com www acornfiresecurity com ...

Page 6: ... see section 6 2 3 2 FIRE relay contacts Closed FIRE see section 6 2 3 3 APIC addressable bus connections for use in conjunction with interface card see sections 6 2 2 and 7 3 4 RS485 SenseNET connections see sections 6 2 2 and 7 2 5 Power supply connections see section 6 2 1 www acornfiresecurity com www acornfiresecurity com ...

Page 7: ...or 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 A copy of the remote control software is contained on a disk supplied with each detector Install the software in accordance with the on screen instructions To open the software select Start Programs AirSense Remote x where x is the version of software installed Access...

Page 8: ...IC card cannot be fitted at the same time as an Input Relay card This function is used to temporarily decrease the sensitivity of the detector by a known amount to prevent nuisance alarms generated by planned events e g opening fur nace doors or incense burning during church services When this function is set to a value other than zero the shorting together of the I P 3 contacts on the Input Relay...

Page 9: ...he 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 Note It will take a further ...

Page 10: ...ft and if the time at which this happens is within 70 minutes of the programmed switchover time it selects the night time histogram This means that changes in time setting e g changing to summer time may be ignored as the detec tor will take this into account The default times for day and night start are 08 00 and 19 00 respectively Note that if the environment actually becomes more contaminated d...

Page 11: ... 1 I P 2 or I P 3 terminals of a connected relay input card respectively as the activating terminals Remote terminals 4 and 5 are retained for future expansion The day night setting reverts to the previous state when the contacts are opened The function can be activated by a keyswitch latching push button or any other device that has volt free short circuit contacts when activated NB enabling the ...

Page 12: ... not the time that has elapsed since last power up but the sum total of run time since the detector memory was last reset 3 23 Watchdog count Device information tab The watchdog is a circuit built into the detector that restarts the detector in the event of a failure to function properly This could be as a result of electrical spikes This count shows the number of interruptions found The details o...

Page 13: ...requires the Remote Control Software version 3 2 or later available to download free on www airsensetechnology com The default flow fault thresholds on the Stratos Micra are set to meet the stringent airflow monitoring requirements of EN54 20 with a default flow fault delay of 30 sec onds This may lead to unwanted flow faults being generated when local conditions cause short term variations in air...

Page 14: ...cording 20 minutes 200 minutes 19 flow recording 50 minutes 500 minutes The chart log recording rates are as follows In the above table the grayed section indicates flow rate recording while the white sec tion indicates detector and alarm level recording At the slowest recording rate one month of data can be recorded The factory default setting is 8 If documented figures are unavailable for the fi...

Page 15: ...tart a FastLearn to reset the separator condition reading see section 3 7 3 36 Separator change date Miscellaneous tab This function defaults to which means that a separator fault will only appear when the efficiency decreases to 80 see 3 35 Separator condition However a date may be entered into this function to allow for a scheduled maintenance period The detector will then generate a separator f...

Page 16: ...ich updates every 15 minutes feeding information to the long term slow histograms which appear in yellow These set the detector sensitivity based on the ambient smoke conditions and it takes 24 hours for the two slow histograms the day and the night histograms to complete their learning phase see section 3 7 Detector sensitivity is based on the fast histogram during FastLearn and is thereafter bas...

Page 17: ...period When this period has elapsed it will read OFF Alarm factor This is the ClassiFire alarm factor see section 3 5 Alarm factor Day night This indicates the currently active slow histogram Alarm levels These figures give the position of the various alarm flags in terms of a percentage of full scale deflection Detector output This shows the real time variation in background smoke levels in terms...

Page 18: ...ding window allows the chart recording to be saved to disk or printed to a connected printer and allows a previously saved chart recording to be loaded Chart recording files have the extension rcw Where a custom set of programmable function settings is commonly used these may conveniently be saved to or loaded from disk To open a detector function settings dfs file select the menu options File Ope...

Page 19: ...icated 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 in the remote2k directory Loading this file will reset the detector to the factory default www acornfiresecurity com www acornfiresecurity com ...

Page 20: ...st be recommended that if in doubt PipeCAD be used to ensure that transit times balance of suction and individual sampling point sensitivity are within desired limits In order for the installation to conform to EN54 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 5mm diameter and free from b...

Page 21: ...ling void Note The piped exhaust docking station needs to be used in this case A Above ceiling sampling with exposed detector False ceiling Exhaust pipe Stratos Micra Sampling hole Sampling pipe Sampling hole False ceiling Stratos Micra Sampling pipe www acornfiresecurity com www acornfiresecurity com ...

Page 22: ...s keeps the cool smoke from an incipient fire reaching from reaching ceiling level In this instance 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 There is no substitute for carrying out smoke tests prior to installation of pipe work to indicate suitable sampling point location No more than ONE Air Han...

Page 23: ...calculation options dialog box Enter the sensitivity value obtained from the practical test and then click OK The new calculated value will use the the eal sensitivity from the practical test r 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 Fi...

Page 24: ...guidelines on installing detectors The detector will normally be mounted at a level where there is easy access to the unit for configuration and programming The exhaust air from the unit must not be impeded in any way If the unit is mounted in a different air pressure from where the air is being sampled for example an air duct then a pipe must be taken from the exhaust port back to the same air pr...

Page 25: ...ction proc ess NB All connections should be made with the power turned off 6 2 1 Power supply connections The power supply cable should be of screened type and should be led through the metal cable gland provided leaving about 35mm of the cable extending from the bot tom of the cable gland Depending on the type of cable used it may be necessary to increase the diameter of the cable with sleeving o...

Page 26: ... next to the power supply socket if con necting the detector to a SenseNET system or the four way Bus terminal block if connecting the detector to an alarm panel in conjunction with the APIC addressable bus card see section 7 3 For example in a SenseNET system using screened cable connect the screen wire s to the SCN terminal Bus A wire s to the A terminal and Bus B wire s to the B terminal If the...

Page 27: ...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 To comply with radiated immunity requirements it is recommended that the relay connection wires be looped once around a suppression ...

Page 28: ...ckets 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 NB The detector is designed solely for operation with the front cover securely fitted using all four fixing screws Removing the detector is simply the reverse of this process leaving the pipe work and wiring connections installed in the dock...

Page 29: ...elf to the PC Command Module or fire panel each detector needs to have a unique address ranging from 1 to 127 The detector address is simply set on the red DIP switch SW1 at the top left of the opened detector on the main circuit board The switch settings are on for 1 and off for 0 and the detector address is set as a 7 bit binary code switch 8 equates to a value of 128 and so is outside the usabl...

Page 30: ... 1 1 1 0 0 57 1 0 0 1 1 1 0 0 58 0 1 0 1 1 1 0 0 59 1 1 0 1 1 1 0 0 60 0 0 1 1 1 1 0 0 61 1 0 1 1 1 1 0 0 62 0 1 1 1 1 1 0 0 63 1 1 1 1 1 1 0 0 64 0 0 0 0 0 0 1 0 65 1 0 0 0 0 0 1 0 66 0 1 0 0 0 0 1 0 67 1 1 0 0 0 0 1 0 68 0 0 1 0 0 0 1 0 69 1 0 1 0 0 0 1 0 70 0 1 1 0 0 0 1 0 71 1 1 1 0 0 0 1 0 72 0 0 0 1 0 0 1 0 73 1 0 0 1 0 0 1 0 74 0 1 0 1 0 0 1 0 75 1 1 0 1 0 0 1 0 76 0 0 1 1 0 0 1 0 77 1 0 1 ...

Page 31: ... that bare wire joints be insulated to prevent possible shorting of the data bus which will cause a drop out of data on the SenseNET bus In the above example there could be a total length of RS485 cable of up to 1 2km between the Command Module and Detector 3 since these are all on a single bus However Detector 3 is a Stratos HSSD 2 which has a second communications bus RS485 bus 2 and an RS485 re...

Page 32: ... 2 The only settings that need to be made are on the APIC address DIP switches The start loop address Is entered on SW1 and the end loop address on SW2 In the case of a single Stratos Micra the start and end addresses will be the same NB The detector address on the SenseNET loop and the Fire Panel addressable protocol address are the same i e no address translation is performed Some protocols may ...

Page 33: ...alone detector to a PC connect the PC s serial port directly to the detector s 9 way RS232 port Connections for this cable are shown below 9 pin female D connector 2 3 5 7 8 3 2 5 8 7 9 pin female D connector Serial port connection to PC serial port www acornfiresecurity com www acornfiresecurity com ...

Page 34: ...eration demonstration mode start stop FastLearn start stop Power on or off The detector stores an internal log of the last 200 events and this can either be viewed on a PC screen or downloaded to disk by use of the remote control software When the event log is full 200 events are stored and a new event occurs the oldest event in the log is deleted First In First Out To download the event log conne...

Page 35: ...ent event log as a evl file with a user defined name Print prints the event log to a connected printer Filter clicking on this option brings up the following screen This allows the user to limit the information printed or viewed on the PC screen For example the user might wish to concentrate on alarm events only To do this click on None which unticks all boxes and then on Alarms To tick all the bo...

Page 36: ...e smoke fully dissipate 7 Perform another FastLearn this time not putting the detector into demonstration mode The detector will generate no alarms during the 15 minute FastLearn period and after this the detector will operate at a reduced sensitivity for 24 hours whilst ClassiFire acclimatises to the protected environment and sets up appropriate day and night sensitivity settings 9 1 Commissionin...

Page 37: ...d replacing To replace the filter simply remove the front cover and pull the filter out from the main unit Slide the replacement filter in so that the Direction of flow arrow printed on the carton duplicates that on the Direction of flow label beside the filter slot It is recommended that dust separators be changed at an interval of not more than 3 years After replacing the filter the detector mus...

Page 38: ...message will then appear on the screen The software will then scan the loop for up to 127 detectors For a single detector wait until the first detector has been identified and the window indicates that it is scanning for Detector 2 then press the Cancel button The following window appears Click on the list entry to highlight it and click on the Diagnostics button The software will then commence th...

Page 39: ... rate which updates in real time Relays Brings up a screen allowing the function of the volt free Fire and Fault LEDs to be tested with the aid of a continuity meter or other tester The Fire relay contacts are open in normal operation and will close on test The Fault relay contacts operate on a Fail safe basis and are held closed in normal operation They will therefore open on test Save As Saves t...

Page 40: ...1 3 Elevated smoke levels do not generate alarms Check that detector is not Isolated or in FastLearn if Isolated the Fault light will be lit Check that the detector sampling points are in the smoke stream Check that the correct ClassiFire alarm setting has been set see section 3 5 Check that the detector has either had a 24 hour learning period or that it has been placed in demonstration mode 11 4...

Page 41: ...be installed using the piped exhaust docking station see section 6 1 Intermittent flow faults may indicate local short term fluctuations in air pressure To overcome this problem the flow fault delay is programmable from 30 to 240 seconds 11 6 1 Low flow error messages Check that the pipe giving the error is not blocked Check that the low flow fault threshold is not set too high see section 3 29 In...

Page 42: ...e 10 to 60 C humidity 0 90 non condensing DON T Forget to set the appropriate ClassiFire alarm factor for the area to be detected Forget to set the Detector Address Switches correctly when used in a network Site detectors in damp or exposed areas Remove or connect boards when the detector is powered up Connect internal 0 volt terminals to local earth Attempt to re use dust separator cartridges onc...

Page 43: ...tivity range 0 0003µm to 10µm Current consumption 250mA Relay contact rating 500mA 30V Maximum sampling pipe length 50 metres total see design limitations on section 5 Sampling pipe inlets 1 Sampling pipe internal diameter 15 25mm 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 separato...

Page 44: ...www acornfiresecurity com www acornfiresecurity com ...

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