DETECTIVE INSTRUCTION MANUAL - Sure-Safe
Contents
1. On successful Zeroing there is an option to END the set up and return to measuring or to CONTinue with the set up CALIBRATE Before this can be done the instrument should be zeroed You will need a Detective aspirator and a supply of Crowcon test gas Scroll through the available gas channels and press YES to calibrate the desired channel Aspirate gas over the sensors at Y2 litre minute when the reading is stable press the UP and DOWN options until the reading matches the concentration of the test gas and then press YES On successful calibration there is an option to END and return to measuring or to CONTinue with the set up Should a CAL FAILED message appear either the gas concentration was not equal to the value set and calibration should be repeated or the sensor has deteriorated PRINT DATA Ensure that the instrument is connected to a printer ready to receive XONIXOFF serial data via the four pin connector on the back of the instrument marked COMPUTER INTERFACE A full LOG STATS see TERMINAL INTERFACE listing will now be downloaded to the printer BATTERY CHARGING M07096 6 Issue 4 7 03 CROWCON The built in battery pack has sufficient capacity to power the instrument for 24 hours monitoring and half an hour in alarm mode The Detective has a built in two stage charging circuit enabling the instrument to be left on charge indefinitely The red LED indicates that the instrument is on fast charge and the green L2. 2G EEx ib d IC 4 d Cert No Sira 3ATEX2102 f a Wes XXXX S N XXXXX Static Hazard clean only with a damp cloth Use Qno NP12 or IBT BT1 batterles o be used in hazardous areas containing greater than 21 oxygen INTERCONNECTION SOCKETS TO OTHER DETECTIVES ARE WTRINSICALLY SAFE CHARGING Um 250Vec DO NOT CHARGE IN HAZARDOUS AREA Manuiactured by Crowcon Abingdon OX14 10 UK 21
3. heard TURN OFF Press the ON and unmarked buttons together BATTERY CHARGING Plug charging lead into the socket on the backplate and then plug into mains Recharge time is 6 8 hours GENERAL DESCRIPTION M07096 3 Issue 4 7 03 CROWCON The Crowcon Detective is a transportable gas detecting unit capable of monitoring up to four gases simultaneously and provide warning of hazardous levels For small area monitoring while personnel are working a single unit can be used For protecting a larger area a number of Detectives can be linked together providing a protective barrier around the work site The main body of the unit is made from fire retardent high impact UV stabilised ABS plastic and is protected against water and dust ingress to 1P66 The unit is mounted on an epoxy painted steel tripod frame which maximises stability The frame encircles the unit to add further protection therefore making it ideal for the most hostile areas The sensors are located underneath the body of the unit for protection and a calibration aspirator can be attached for spot sampling The sealed lead acid batteries provide enough capacity for 24 hours monitoring and half an hour in alarm mode When not in use Detective units can be conveniently stacked one on top of the other or the legs can be removed to minimise longer term storage space See diagram at back of manual for leg assembly instructions OPERATION To SWITCH ON press the ON butt
4. inserted between each of the numbers SHORT TIME mins Sets the Short Term Exposure Limit which may be set between 5 and 15 mins 15 mins is the UK standard CAL DUE day month year Sets the date after which a CALIBRATION DUE message will appear at switch on CHANNEL INFO chani To alter the configuration of FACTORY PRE SET sensor modules The following prompts are given Sensor NAME Sensor UNITS FALLING ALARM threshold RISING ALARM threshold SHORT TERM exposure limit LONG TERM exposure limit Mid Span 1 oxy 0 other 1 toxic other 0 1 or 2 decimal places gt Existing sensor information by be edited or accepted NOTE Certain alarm types are inappropriate for certain sensors and should be disabled be setting unrealistic levels SHORT and LONG TERM limits may be set to 1 for flammable and oxygen channels as they are deactivated within the software Mid span is a sensor specific M07096 8 Issue 4 7 03 CROWCON constant used by the processor to control calibration Use default factory values at the end of section For channels other than oxygen there is the option to define the number of decimal places the extra decimal places are only relevant on low range measurements TWA REPORT A glance view of the LONG TERM exposure levels TWA RESET Resets the LONG and SHORT TERM exposure levels READ chan View current gas level of specific channel MID SPAN values Oxygen O2 Methane CH4 Hydroge
5. 1 M D Shearman Date 27 June 2003 Certification Manager Index 14 This certificate and Its schedules may onty be reproduced n its entirety and without change Sira Certification Service Rake Lane Eccleston Chester CH4 9JN England Page 1 of 4 Tel 44 0 1244 670900 Fax 44 0 1244 581330 Email exhazard siratc co uk ST amp C Chester Form 9176 Issua 7 Sira Certification Service is a service af Sira Test amp Certification Ltd M07096 17 Issue 4 7 03 CROWCON Sira Certification Service SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira 03ATEX2102 13 DESCRIPTION OF EQUIPMENT The Detective is a battery powered transportable multiple gas detector It is based on the Crowcon Triple Plus Gas Detector containing oxygen toxic biased toxic thermal conductivity flammable and infra red sensors in any combination A cluster of LEDs mounted on top of the instrument and an audible sounder provides alarm status A continuous display is pravided on an LCD panel mounted on the side of the instrument The circuits are housed within an ABS IP65 enclosure which is mounted on a steel tripod The electronic circuits are located on two main circuit boards with up to four daughter boards located adjacent to the gas sensors The oxygen and toxic sensors are electrochemical and the thermal conductivity and flammable sensors are flameprocf component certified devices The unit is supplied from two internat battery packs each c
6. 106 11 Alt tones 800 970 at 7 8Hz 14 10101 105 12 Int tone 2830 at 1Hz 4 10100 Back up alarm HF 116 13 970Hz at sec on sec off 14 10011 102 14 Continuous 970Hz 14 10011 107 15 554Hz for QOms amp 440Hz for 14 10001 French fire sound 97 400ms 16 Int660Hz ISOms on ISOms off 14 1000 Swedish fire alarm 97 17 Int66OHz 1 8s on IBs off 14 01111 Swedish fire alarm 91 18 Int 660Hz 6 5s on 13s off 14 01110 Swedish fire alarm 90 M07096 14 Issue 4 7 03 CROWCON 19 Continuous 660Hz 14 01101 Swedish fire alarm 90 21 Int 660 at 7 8Hz 14 01011 Swedish fire alarm 87 22 n2850 150ms on 100ms off 14 01010 Pelican crossing 113 23 Sweep 800 970 at 50Hz 14 01001 Low frequency buzz 105 24 Sweep 2400 2850 at 50Hz 4 01000 High frequency buzz 112 NOTE The second sound is the low battery alarm In order to change the sounder tones gently turn the bottom half of the sounder until it can be removed taking great care not to damage the wiring Locate the set of 5 switches and set to the required combination Replace the bottom half of the sounder and the labels Test the unit by switching ON M07096 15 Issue 4 7 03 CROWCON CERTIFICATION INFORMATION M07096 16 Issue 4 7 03 CROWCON sira Certification Service EC TYPE EXAMINATION CERTIFICATE Equipment intended for use in Potentially Explosive Atmospheres Directive 94 9 EC Certificate Number Sira O3ATEX2102 Equipment Detective and Detective Plus Applicant Cro
7. CB schematic May 03 Converter PCB potting Apr03 Interface socket label Mar 03 General arrangement amp block diagram 02 Jun 03 Critical parts fist Dec 02 IR PCB schematic Nov 02 Main PCB layer 1 artwork Nov 02 Main PCS layer 2 artwork Nov 02 Main PCB layer 3 artwork Nov 02 Main layer 4 artwork Nov 02 Main PCB Silk Screen Nov 02 Main PCB schematic Nov 02 Explosive PCB schematic Nov 02 Toxic PCB schematic Nov 02 Oxygen PCB schematic Nov 02 Biased toxic PCB schematic Sept02 Biased toxic PCB component location 02 Biased toxic PCB component side copper Sept02 Biased toxic PCB layer 2 copper Sept 02 Biased toxic PCB layer 3 copper Sept 02 Biased toxic PCB solder side copper NovO2 TCS PCB schematic m CS Oa o XD e RJ I OI GU E p Wb 00 00 Ow Date 27 June 2003 This certificate and Its schedules may only be reproduced in tts entirety and without change Sira Certification Service Rake Lane Eccleston Chester CH4 9JN England Page 3 of 4 Tel 44 0 1244 670900 Fax 44 0 1244 681330 exhazard airatc co uk ST amp CIChester Form 9176 Issue 7 Sira Certification Servica is a service of Slra Test amp Certification Ltd M07096 19 Issue 4 7 03 CROWCON ira Certification Service SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira 2102 17 CONDITIONS OF CERTIFICATION 17 1 The use of this certificate is subject to the Regulations Applicable to Holder
8. DETECTIVE INSTRUCTION MANUAL Crowcon Detection Instruments Limited Part No M07096 2 Blacklands Way Issue 4 Abingdon Business Park 7 03 Abingdon Oxfordshire 0X14 1DY ENGLAND Tel 44 0 1235 553057 Fax 44 0 1235 553062 CONTENTS OPERATING GUIDE GENERAL DESCRIPTION OPERATION Switch on Display Alarms Overrange Backlight Clock Switching off Linking together SETTING UP Calibration menu Off mode Display mode Alarm mode Zero Calibrate Print Data BATTERY CHARGING TERMINAL INTERFACE TROUBLE SHOOTING GUIDE MAINTENANCE amp CALIBRATION Recalibrating Replacing sensor module Replacing battery pack LIMITATIONS TO USE ACCESSORIES SPARES APPENDIX Data logging Alternative terminal interface Alternative sounder selection Leg assembly instructions Certification information CROWCON BR A N N C1 10 10 11 11 11 13 13 13 14 14 16 07096 Issue 4 7 03 CROWCON QUICK OPERATING GUIDE TURN ON Press ON alarm sequence will be tested then display either the gas levels or MONITORING ALARM Alarm sounds warbling tone and the red LEDs flash the hazardous gas symbol will flash or the display will read GAS HAZARD EVACUATE AREA RESET ALARM Press the unmarked button BACKLIGHT Press the button with the light symbol It will stay on for 30 minutes unless the button is re pressed LOW BATTERY A continuous tone is
9. ED that it is on trickle charge To recharge the instrument locate the charging socket on the back of the Detective and undo the cover Connect the charging lead between the mains and the Detective One of the two LEDs will illuminate indicating the charge rate The charging lead is supplied for connection to either 110 or 240V although the Detective must be factory set to the expected voltage Connect brown live blue neutral green yellow earth WARNING THE INSTRUMENT MUST NOT BE CHARGED IN A HAZARDOUS AREA TERMINAL INTERFACE This section describes how a computer may be used to reconfigure the instrument for a particular application An IBM compatible PC or Psion Organiser with an R5232 port can be connected to the Detective via its serial port and the four pin interface socket located at the back of the Detective see appendix if not using an IBM compatible PC Note the RS 232 port can only be used when the Detective is plugged into the mains power supply Crowcon recommend the use of CROWCOMMS software for easy interfacing between a PC and the Detective The Detective must be switched on for successful communication and plugged into a mains power socket via the battery charging lead If the communication link is working properly keyboard entries are echoed back on the screen and the prompt TPL lt software version gt appears after lt return gt or lt enter gt has been pressed Type help lt return gt to list the availab
10. button is 1 and the right hand button is 4 After pressing CAL you have 5 seconds to enter the password Within the SET UP menu the top line displays the option whilst the lower line defines the key functions of the buttons below YES accepts the option NO moves to the next option QUIT returns to the previous level There are 6 options OFF MODE This enables the off to be either ENabled or DiSabled making it impossible for unauthorised personnel to switch the instrument off DISPLAY MODE This enables the display to be set to M07096 5 Issue 4 7 03 CROWCON NORMAL gas measuring PEAK HOLD gas levels on display are held at peak values as soon as alarm thresholds are exceeded Pressing the unmarked button will update the display to the current value if the alarm is reset TWA time weighted average readout on toxic channels OFF the display will only indicate MONITORING or GAS HAZARD EVACUATE AREA ALARM MODE This enables the instrument to be set to acknowledge different toxic alarm types INSTantaneous sets the instrument to alarm as soon as a threshold toxic gas level is reached TWA causes the instrument to ignore temporary excursions above the instantaneous thresholds but go into alarm when the SHORT TERM or LONG TERM exposure levels are reached ALL ACTIVE enables both TWA and INSTantaneous alarm types ZERO ALL This should only be done when the instrument is in fresh air and a steady output is achieved
11. d idea to LOG CLEAR the memory after inspecting it Inspection is done using LOG STATS LOG DUMP and LOG LATEST Data is filed away in reports starting at report 0 which may be displayed individually A report is ended each time the instrument is switched off or it s memory is inspected The serial number is displayed at the beginning of data reports Configuration of the data logger and access to logged data is via the following TERMINAL INTERFACE commands LOG CLEAR Clears the data logging memory LOG PERIOD hour min secs Displays or changes the data logging interval from anywhere between 1 second and 24 hours NOTE the logger can store up to 24000 measurements therefore on a 4 channel instrument 6000 measurements per channel For most applications a LOG PERIOD of 1 minute provides a good compromise between duration and resolution storing 100 hours of data LOG STATS report Shows the mm mean max values of all logged data reports or single report LOG DUMP report Outputs all the logged data by report or a single report Every reading is outputted to the terminal screen LOG LATEST hour min sec Dumps all data reports logged over the past 30 minutes or requested time period All command lines shown in square brackets are optional if omitted then all reports are outputted or default values used NOTE Logged data is formatted and displayed according to current instrument calibration and therefore should be cleare
12. d prior to recalibration or sensor alteration ALTERATIVE TERMINAL INTERFACE If terminal interface other than an IBM compatible PC or Psion Organiser is used it must be to the following specification Capable of emulating a terminal VT52NTIOO mode BAUD rate 2400 B data bits 2 stop bits no parity ALTERNATIVE SOUNDER SELECTION M07096 13 Issue 4 7 03 CROWCON Detective may be fitted with either a Banshee grey sounder or a MEDC red sounder dependent on when it was produced The MEDC sounder has selectable tone patterns which are determined by rocker switch position settings To access these switches separate the sounder from its base by twisting the body The sounder is preset to give an alarm tone of sweeping 2400 2850Hz at 7Hz with a typical sound output of 114dBA and a low battery alarm continuous tone at 2850Hz with a typical sound output of 116dBA Other tones may be set according to the following table Factory set alarm tone No 5 No Tones 2nd Code Description Typical Tone dBA 1 Alt tones 800 970 at sec 14 11111 104 2 Sweeping 800 970 at 7Hz 14 11110 Fast sweep 105 3 Sweeping 800 970 at 1Hz 14 11101 Medium sweep 105 4 Continuous 2850 14 11100 116 5 Sweeping 2400 2850 at 7Hz 4 11011 Fast sweep 114 6 Sweeping 2400 2850 4 11010 113 7 Slow whoop 14 11001 Slow whoop 103 8 Sweeping 1200 500 at 1Hz 14 11000 Din Tone 103 9 Alt tones 2400 2850 at 2Hz 4 10111 113 10 Int tone 970 at 1Hz 14 10110 Back up alarm LF
13. itched on Pressing the button again or waiting for 5 seconds returns the display SWITCHING OFF This is done by pressing the ON and unmarked button together provided the off function is not disabled This prevents accidental switching off of the instrument LINKING TOGETHER Several Detectives can be connected together via the two four pin DIN sockets located on the back of the instrument These and the computer interface socket are protected to 1P66 A ten metre long linking cable is supplied with the Detective and other lengths are available on request To connect together undo the cover on one of the 2 sockets connect one end of the cable to one Detective and the other end of the cable to the next Detective in the chain Either of the two sockets can be used Detectives can be linked in a chain or a continuous loop When one Detective goes into alarm it sends all the other Detectives into audible and visual alarm via the linking cables The Detective which has initiated the alarm can be identified by its own LEDs rotating at a faster speed than the others The red alarm LED on the front panel will only flash on the unit which has seen gas If another unit detects gas it too will flash its front panel LED and rotate its LEDs faster SETTING UP To access the SET UP menu it is necessary to know the instrument s password Unless this has been changed by the user see Terminal Interface the password is 1 2 3 4 where the left hand
14. le functions HELP CLOCK PASSWORD SHORT TIME CAL DUE CONFIDENCE ZERO CALIBRATE CHANNEL INFO LOG CLEAR LOG PERIOD LOG STATS M07096 Issue 4 7 03 this function Fead or set the clock set password Fead or set S T E L calc period Fead or set date for next calibration enable or disable confidence tick Zero one or all channels calibrate gas channel Set channel variables clear logger memory Fead or set logging interval Statistical display of logged data CROWCON LOG DUMP download of logger readings LOG LATEST download of recent logger readings TWA REPORT read eight hour TWA levels TWA RESET eset eight hour TWA levels READ ead gas channel SERIAL NO read or set serial number See DATA LOGGING for the use of these commands Type HELP followed by one of these commands to discover its usage ZERO Zero all channels Do this BEFORE calibrating CALIBRATE chanl value Set a specified channel to read a given value Aspirate known TEST GAS over the sensors once the sensor has stabilised press return These functions are only available when using the terminal interface ZERO Echan Set a specific channel to zero CLOCK hour min sec day month year Set or read the real time clock PASSWORD n1 n2 n3 n4 Used to set a new password for restricting access to the CALIBRATION MENU Each of the 4 numbers must be between and 4 and a space should be
15. low meter The direction of flow is marked on the flowhead Adjust the flowmeter to achieve a flowrate of 1 2 litre minute Wait until the reading has stabilised on the display before programming in the new level Shut off the supply and disconnect the test gas Aspirate fresh air through the flowhead using the rubber bulb until the reading has returned to zero REPLACING A SENSOR MODULE Carefully remove the black lamp cover retainer and remove the lens cover Using the box spanner provided remove the 13m8 nut and carefully lift off the top half of the case Remove the 6pm molex JP9 labelled LAMPS connecting the LEDs to the main board Remove the 5 pin molex JP3 labelled BATT connecting the battery to the main board Identify the sensor module to be replaced and disconnect the flexible pcb from it by lifting the shroud from the header and gently pulling on the tail Remove the two Pozi drive screws and the old sensor module Remove the old gasket membrane assembly Fit the new components according to a reverse of the above ensuring that the shroud is pushed home over the header to grip the flexible pcb tail securely Replace the LED lead onto the main board connected JP5 Replace the battery lead onto the main board connector JP3 Replace the top half of the case and tightly screw the 7 3m8 nut back in place Replace the lens and the lamp cover retainer M07096 10 Issue 4 7 03 CROWCON Detective sensor modules are
16. mbly Membrane switch label IP65 sounder LED cluster Lamp cover Sensor plate seal Interface socket Computer I F socket Charging socket Inter connecting lead 10 metres MB lock nut Lamp cover retainer Battery pack Interconnection lead adaptor Sensor assemblies o 100 LEL methane flammable o 100 Vol methane flammable 0 50 ppm hydrogen sulphide o 500 ppm carbon monoxide 0 10 ppm sulphur dioxide 0 5 ppm chlorine 0 10 ppm nitrogen dioxide 0 100 ppm nitric oxide 0 10 ppm hydrogen cloride o 25 ppm hydrogen cyanide 0 25 oxygen CROWCON 501326 M04385 6 MOI 461 E01468 E01160 E01456 M04289 M04290 E07392 E07393 E07391 E07397 M03624 M04315 C01406 E07413 011375 501423 501240 501727 501242 501829 501244 501245 501724 501725 501248 It is not recommended that sensor assemblies are stored for longer than 6 months prior to use M07096 Issue 4 7 03 APPENDIX CROWCON DATA LOGGING The integral data logger enables accurate historical record keeping of a individual s exposure to hazardous gas Data logging takes place continuously while the instrument is switched on and readings stored for each channel at a rate set by LOG PERIOD For each channel the maximum level seen that period is recorded The logged data is kept in battery backed memory when the instrument is switched off When the memory is full new data will overwrite the oldest data therefore it is a goo
17. n Sulphide H2S Carbon Monoxide CO Chlorine CL2 Pentane PEN 0 37 2 0 0 8 6 5 0 1 4 0 SERIAL NO nnnnnn Enables the factory setting of the serial number into non volatile RAM If this is corrupted the default number 0 is loaded in this case the serial number may be reprogrammed otherwise only viewing is permitted TROUBLE SHOOTING GUIDE SYMPTOM Does not switch on Does not switch off Alarm signals no gas Gas reading no gas Unstable inaccurate reading Alarm warbles but LEDs on top are off DIAGNOSIS REMEDY CHECK battery flat recharge battery OFF DISabled alter configuration alarm latched press unmarked button zero drifted zero instrument in fresh air sensor failed recalibrate replace sensor battery low recharge battery MAINTENANCE AND CALIBRATION M07096 Issue 4 7 03 CROWCON Crowcon recommend monthly gas response checks and a recalibration every 6 months Flammable sensors will respond to hydrogen and most hydrocarbons but will only be calibrated for a specific gas RECALIBRATING This may be done using the CALIBRATE option in the setting up or by the CALIBRATE function in the TERMINAL INTERFACE Zero the instrument in fresh air Locate the aspirator flowhead under the ledge below the sensors underneath the instrument and secure with the two half turn fasteners Starting with the flammable gases then moving onto toxic connect the cylinder of test gas to the inlet of the flow head via a f
18. of Sira Tes amp Certification Ltd M07096 18 Issue 4 7 03 CROWCON sira Certification Service SCHEDULE EC TYPE EXAMINATEON CERTIFICATE Sira Q3ATEX2102 14 DESCRIPTLVE DOCUMENTS 141 Drawing No Sheet Rev Date Title CUS 2107 A4 1of1 DTV 1904 PCA 1of1 DTV 1904 PCB lofi DTV 1904 SS lofi DTV 1905 PCA lofi DTV 1905 5S lofi DTV 1917 A4 lofi DTV 1931 A2 loft DTV 1922 CD ito2 DTv 1933 CD 1of1 DTV 1937 A3 lofi DTV 2332 A3 lofi DTV 3615 A1 lofi DTV 3616 A4 1to2 IRSM 5152 A3 lof1 TRP 1630 PCA lofi TRP 1630 PCB 1 of 1 TRP 1630 PCC lofi TRP 1630 PCD lofi TRP 1630 SS lol TRP 1636 CD 1of1 TRP 1638 CD lofi TRP 1639 CD lofi TRP 1640 CD loft TRP 1663 CD 1of1 TRP 1688 CL lof1 TRP 1688 PCA lofi TRP 1688 PCB Lori TRP 1688 PCC lofl TRP 1688 PCD lof1 TRP 2317 CD lofi 14 2 Report No R52A9051A 15 SPECIAL CONDTTIONS FOR SAFE USE denoted by X after the certificate number None 16 ESSENTIAL HEALTH AND SAFETY REQUIREMENTS OF ANNEX II EHSRs The relevant EHSRs that are not addressed by the standards listed in this certificate have been identified and individually assessed in Report No R52A90514 Jun 03 Fuse encapsulation Dec96 main board solder side Dec96 DTV main board component side Jun 03 DTV main board silkscreen Dec96 Voltage converter board solder side Dec96 Voltage converter board silk screen Mar03 Certification label Oct95 Battery assembly Feb 03 P S amp alarm PCB schematic Apr03 Voltage converter P
19. on The instrument will display a TESTING ALARM message and indicate the battery voltage If this is less than 6 4V the batteries may need recharging The red LEDs will sequence and the sounder operate After 5 seconds the display will change to display the gas levels DISPLAY This is dependant on the type of sensors installed For each sensor the display indicates the gas concentration units of measurement and the gas name The green power LED will flash intermittently to reassure the user that all is well ALARMS When the Detective detects gas above a dangerous level the red LEDs on top of the unit flash in quick succession and the sounder emits a fast warbling noise The channel responsible for the alarm flashes on the display Alarms may be reset by pressing the unmarked button once the gas hazard has passed OVERRANGE If a sensor is out of range it causes the relevant information on the display to flash indicating a high gas level or a faulty sensor module Calibration should then be checked BACKLIGHT This can be activated to illuminate the display be pressing the button marked with the light symbol It will remain on for 30 seconds unless the button is re pressed The backlight will be activated automatically if a gas alarm condition is reached CLOCK This can be displayed by pressing the unmarked button The display shows the time and the M07096 4 Issue 4 7 03 CROWCON elapsed time since the instrument was sw
20. ontaining two 6 V lead acid batteries and has an integral charger that may be connected to a 110 Vac or 240 Vac mains supply depending on the factory setting of the supply voltage Charging or replacement of the batteries is only permitted in non hazardous area The mains connection is accessed via a panel on the back of the instrument The Detective incorporates a data logger and has an RS232 port far connection to a Computer interface for the downloading of data when in the non hazardous area A single unit can be used alone a number linked together via the two four pin DIN sockets located on the back of the instrument thus providing protection for a larger area The Safety description for these interface socket is as follows Second Third RS232 Detective Detective safe area 2 6 1 3 JP6 4 6 JPG 9 12 U 7 05 V 7 05 V 25 V ojc I gt uu 18 mA 18 mA P 0 028 W 0 028 W 120 mw Ci 0 0 E 0 0 Uy 7 05 V 7 05 V I 18 mA 18 mA E Po 0 028 W 0 028 W The Detective is identical to the Detective except for software and the style of the front label Date 27 June 2003 This certificate and its schedules may only be reproduced In its entirety and without change Sira Certification Service Rake Lane Eccleston Chesler CH4 SUN England Tal 44 0 1244 670900 Fax 44 0 1244 681330 2 Page 2 of 4 Email exhazard siratc co uk ST amp C Chaster Form 9176 Issue 7 Sira Certification Service is a service
21. s of Sira Certificates 17 2 Holders of EC type exemination certificates are required to comply with the production contro requirements defined in Article 8 of directive 94 9 EC 17 3 This certificate relies on the following previously certified products When used as part of the equipment the key attributes listed in the table below shall still be maintained cy their original certificate Product Certificate no Key attributes MEDC Type D85 sounder BAS OOATEX1259 EEx ia IIC T4 Ui 28 V Pi 0 81 W 2 ER Li 20 mH 1000 BEKA LED cluster BAS O1ATEX1062X EEx ia IIC T4 Ui 30 V Ii 185 5 mA Pi 1 3 E2V formerly Marconi Sira 9S9ATEX1121U EEx d Tic IRIxx x infra red sensing head Flemmable Block Sira O2ATEX1281U EEx d IIC Littelfuse 259 series 62mA fuse BAS 01 12780 EEx ia IIC Sensor 501 881 Sira 02ATEX1411U EEx d IIC Date 27 June 2003 This certificate and its schedules may only be reproduced in its entirety and without change Sira Certification Service Rake Lane Eccleston Chester CH4 SJN England 44 Fax 44 3 Page 4of4 0 1244 670900 Fax 0 1244 681320 Ema exhazard siratc co uk ST amp C Chester Form 9176 Issue 7 Sira Certification Service is a service of Sia Test amp Certification Lio M07096 Issue 4 7 03 20 M07096 Issue 4 7 03 CROWCON INS TECT yp C oc VE
22. supplied precalibrated from the Crowcon factory and will identify themselves to the instrument when it is switched on It is advisable to check the response to test gas to ensure that no damage has occurred in transit and that installation has been carried out successfully REPLACING BATTERY PACK Carefully remove the black retaining screw and the lamp cover Using the box spanner provided remove the 13MB nut and carefully remove the top half of the case Remove the 6 pin molex JP5 labelled LAMPS enabling the top half of the case to be fully removed Disconnect all the molex connectors to the main board Remove the four pozi drive screws holding the metal base plate down Carefully lift off the board and metal plate Remove the old batteries and replace with new ones Replace the metal base and main board and screw back in place the four pozi drive screws Replace the molex connectors Replace the top half of the case tightly screw the 13MB nut back in place Replace the lens and lamp cover retainer If any further maintenance is required contact the Crowcon Service Department LIMITATIONS TO USE i LONG TERM STORAGE LIMITS OPERATING LIMITS MIN MAX MIN MAX ACCESSORIES FOR DETECTIVE Aspirator probe 1 metre C01297 Extra aspirator hose 2 metre length M04032 Computer interface lead E07394 Crowcomms Software for computer terminal emulation C01715 M07096 11 Issue 4 7 03 SPARES Main pcb Moulding set Frame asse
23. wcon Detection Instruments Limited Address 2 Blacklands Way Abingdon OX14 1DY UK 7 This equipment and any acceptable variation thereto is specified in the schedule to this certificate end the documents therein referred to a wm A U N e Sira Certification Service notified body number 0518 in accordance with Article 9 of Directive 94 9 EC of 23 March 1994 certifies that this equipment has been found to comply with the Essential Health ana Safety Requirements relating to the design and construction of equipment intended for use in potentially explosive atmospheres given in Annex II to the Directive The examination and test results are recorded in confidential report number 52 9051 Compliance with the Essential Health and Safety Requirements with the exception of those listed in the schedule to this certificate has been assured by compliance with the following documents EN 50014 1997 EN 50018 2000 EN 50020 2002 10 It the sign X is placed after the certificate number it indicates that the equipment is subject to special conditions for safe use specified in the schedule to this certificate 11 This EC type exemination certificate relates only to the design and construction of the specified equipment If applicable further requirements of this Directive apply to the manufacture and supply of this equipment 12 The marking of the equipment shall Include the following II 2G EEx ib d IIC T4 Project Number 524905
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