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6

Safety Information

•

Detective Net is a hazardous area certified product and as such must be operated and

maintained in strict accordance with the instructions, warnings and label information included in

this manual. Detective Net must be operated within the limitations stated.

•  This document is applicable to Detective Net 433 and Detective Net 868.
•  Read and understand all instructions in this manual prior to use.
•  Before use ensure that the equipment is in good condition and that the enclosure is intact has

not been damaged in any way.

•

If there is any damage to the equipment do not use, contact your local Crowcon office or agent

for repair/replacement

• There are no user replaceable internal parts and only Crowcon or Crowcon agent service

personnel can service this product.

• Only genuine Crowcon replacement parts must be used; substitute components may impair

intrinsic safety and invalidate safety certification and warranty of Detective Net.

• Detective Net has a non-rechargeable battery that must only be changed in non-hazardous

(safe) areas by Crowcon or Crowcon agent service personnel

•  No live maintenance is permissible
•  Observe all warnings and instructions marked on the unit and within this manual.
•  If this product is not working properly, read the troubleshooting guide and/or contact your local

Crowcon office or agent, for details reference the ‘Crowcon Contacts’ section of the manual

•

Risk of static discharge. During installation in a fixed location take care to avoid static

generating mechanism. Once installed do not touch certification label on rear of device if a

flammable hazard is present.

• The metal connector shell has a capacitance of 7 pF when measured in accordance with IEC/

EN60079-0. Installations where the resistance to earth of this exposed metal surface is greater

than 1G Ω must consider the potential electro-static charge risk (e.g. in accordance with CLC/

TR 50404 or other relevant publications).

• Detective Net should be used with one of the following interconnection cables, Crowcon part

number E070010, E070012 & E070028, having the following parameters: Cmax = 15 nF/m;

Lmax = 75 uH/m, Rmin = 30 mΩ/m.

Contents

Exit

Overview

Operation

Specification

Service and

maintenance

Troubleshooting

Warranty

Glossary

Contacts

Accessories

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Содержание Detective Net

Страница 1: ...H2 S CO CH4 M070019 ENG Issue 1 Jul 2013 Detective Net User Operator Manual Detective Net Click here fo contents list Click here for navigation instructions ...

Страница 2: ...previous page Click on this button to display the next page Click on this button to display the previous view use it to return from a reference jump Click on this button to display next view use it to return to a reference jump Click this button to print some or all of the document specific pages can be chosen Exit Click this button to exit the user guide Press the Esc key to display normal Acroba...

Страница 3: ... 6 LED repetition rates 15 1 5 Function buttons 16 1 5 1 Function Button 1 FB1 16 1 5 2 Function Button 2 FB2 16 1 5 3 Function Button 1 FB1 Function Button 2 FB2 16 1 6 System Configuration 17 1 6 1 Switching on a device 17 1 6 2 Resetting a device 17 1 6 3 Toggle Devices between Master Slave Functionality 18 1 6 4 Setting Up a Simple Wireless Network 18 1 6 5 Network connection test 19 1 6 6 Add...

Страница 4: ...ation 29 1 9 1 Normal Operation 29 1 9 2 Loss of Connection to Wireless Network 29 1 9 3 Re establishing Network Connection 30 1 9 4 Detective Net Device Low Battery Alert 31 1 9 5 Detective Power Down or Inadvertent Switch Off 31 1 9 6 Internal Fault 31 2 Detective Net specification 32 3 Service and maintenance 33 4 Troubleshooting 34 5 Accessories 36 6 RICOCHET Mesh Technology 37 Warranty 38 Cro...

Страница 5: ... network are alerted to a gas event that may be remote from their current location Detective Net is simply connected to the existing interconnecting cable connector and is supplied with a clip for mounting A Detective Net device can be configured as either a master or a slave device and a full wireless network can consist of one master device master and up to 25 slave devices The wireless network ...

Страница 6: ...non hazardous safe areas by Crowcon or Crowcon agent service personnel No live maintenance is permissible Observe all warnings and instructions marked on the unit and within this manual If this product is not working properly read the troubleshooting guide and or contact your local Crowcon office or agent for details reference the Crowcon Contacts section of the manual Risk of static discharge Dur...

Страница 7: ... an appropriate Level of Protection Group Classification and Temperature Classification The following conditions must also be met Other Device s Other Device s Ui 3 7 V Uo 10 V Ii 14 3 mA Io 25 mA Pi 8 7 mW Po 62 5 mW Ci Ccable 999 uF Co Ccable 240 nF Li Lcable 173 mH Lo Lcable When Detective NET is connected to multiple other devices the system must be considered per IEC EN60079 25 Detective Net ...

Страница 8: ...ents IEC 60079 11 6th Edition 2012 Explosive atmospheres Part 11 Equipment protection by intrinsic safety i IEC 60079 26 2nd Edition 2009 Explosive atmospheres Part 26 Equipment with protection level EPL Ga Ex ia IIC T4 Ga Tamb 20 C to 55 C IECEx ULD 13 0004X II 1 G 1180 WARNING ELECTRO STATIC HAZARD REFER TO MANUAL M07006 BEFORE USE Ex ia IIC T4 Ga Tamb 20 C to 55 C DEMKO 13 ATEX 1255796X IECEx U...

Страница 9: ...spheres Part 11 Equipment protection by intrinsic safety i IEC 60079 26 2007 Explosive atmospheres Part 26 Equipment with protection level EPL Ga II 1 G Ex ia IIC T4 Ga Tamb 20 C to 55 C DEMKO 13 ATEX 1255796X Contents Exit Overview Operation Specification Service and maintenance Troubleshooting Warranty Glossary Contacts Accessories ...

Страница 10: ...ibes the process of learning a slave device to the master device Slave devices must be learned to the network prior to deployment Gas alarm A gas alarm is initiated when a Detective unit detects gas and goes into alarm with the beacon and lights in operation Network Alert A network alert is the response of the network to a gas alarm event on a Detective unit within the network A network alert will...

Страница 11: ...ble to undertake a network connection test to ensure all Detective Net units are configured correctly and are within range on the network A Network Connection Test will cause all devices configured within the network to be placed in Network Alert for 10 seconds RICOCHET Mesh Network Each Detective Net device can provide alternative wireless transmission routes Should a wireless connection between ...

Страница 12: ... The box label details the contents 1 2 Device details The main components of the Detective Net are shown in Figure 2 below Figure 2 Device details À Function Button 1 FB1 Á Function Button 2 FB2 Â Indicator LEDs Ã Low battery indicator Ä Cable connector Å Detective Fixed Mount Bracket Æ Bracket securing screws À Á Ã Å Æ Ä Â Contents Exit Overview Operation Specification Service and maintenance Tr...

Страница 13: ...m interconnecting cable can be used see Accessories table page 36 i i Only these cables must be used and the maximum cable length must not exceed 20m otherwise intrinsic safety may be impaired Connect the Detective Net to a Detective module as shown in below Figure 3 Connection Contents Exit Overview Operation Specification Service and maintenance Troubleshooting Warranty Glossary Contacts Accesso...

Страница 14: ...rn mode Single flash Powered up in normal operation Continuous flash Device in Learn Mode 1 4 2 LED2 Network Status Red Amber Green LED Indicates the current status of the network connection or the status result of Learn Mode LED2 Single Flash green Master Device Network okay all configured slave devices connected to network Slave Device Network okay slave has network connection to master device À...

Страница 15: ...successful or force communications was unsuccessful 1 4 3 LED3 Alarms Red LED Indicates a Detective Net gas alarm or a network alert Single flash Gas alarm event Double flash Network alert event 1 4 4 LED4 Master Slave Green LED Indicates if the Detective Net is configured as a master or a slave device Single Flash green Device configured as Master Device LED off Device configured as Slave Device ...

Страница 16: ...nds Device on Resets a master or a slave device 1 5 2 Function Button 2 FB2 Hold down for 3 seconds Device on Toggles functionality between a master and slave device hold to change a master device to a slave device or visa Double click Enter leave learn mode slave device will leave learn mode automatically 1 5 3 Function Button 1 FB1 Function Button 2 FB2 Hold down for less than 1 second Initiates...

Страница 17: ... i i A reset will cause the device to erase any previous network configuration but will not change the function of the device For example if the device was previously a master device it will continue to be so after a reset but the master will no longer retain any slave information previously learned It will effectively become a blank master device X X With the device powered up hold down FB1 for 3...

Страница 18: ...to flash green X X Take a device configured as a slave device ensuring it has been reset see Section 1 6 2 and place a minimum of 1m apart from the master device i i The slave and master devices must be placed a minimum of 1m apart to ensure correct operation during normal operation and also when setting up the paired network X X Double click FB2 on the slave device to enter learn mode LED1 will c...

Страница 19: ...he network X X Press and hold both FB1 and FB2 on either a master or slave device momentarily to initiate a system connection test i i A network connection test will cause all devices configured within the network to be placed in network alert for 10 seconds i i If a configured device is not placed into network alert upon initiation of the network test it may be out of range and must be moved clos...

Страница 20: ...ble click FB2 button on the master device to exit learn mode LED4 continues to flash green LED2 will single flash green to show the slave is connected to the network and LED1 turns off i i It is important to undertake a network connection test if slaves are added to the network This ensures all devices are functioning and correctly connected to the network 1 6 7 Removing Slave Devices from the Net...

Страница 21: ... device to exit Learn mode LED4 continues to flash green LED2 will flash green to show the slave is connected to the network and LED1 turns off i i It is important to ensure the master device exits learn mode or the network will not operate correctly X X The slave is now removed from the network 1 6 8 Power Down master or slave device When the wireless network is decommissioned to preserve battery...

Страница 22: ...ireless device will deem the Detective to have exhausted its battery and will initiate an alert on the network The master device should be powered first and placed as centrally as possible in the network this will make best use of the benefits of the mesh network LED2 will flash amber twice to indicate no network connection as no slave devices are powered at this point and LED4 will flash green in...

Страница 23: ...network If the sequence as described above is not followed when powering up the network dependant upon the network configuration it may take up to an hour before the whole network is fully established 1 7 2 Force Communication The force communication process can be used to force a slave device to re establish communication to a master device X X Press any button on the slave device and this will f...

Страница 24: ...e the benefits of the mesh network the following best practices should be followed A network must contain only one master device A device must not be deployed if the low battery LED is illuminated Place the master device as close as possible to the centre of the network Wherever possible place slave devices such that wireless communication to the master is direct and network hopping is not necessa...

Страница 25: ... slave device or hopping This may occur if the slave device is placed at the maximum distance from the master device If each slave devices is placed at the maximum distance apart in a straight line from the master device network hopping will be utilised In this case the maximum number of hops in each direction from a centrally located master device will be three see Figure 7 Any slave device beyon...

Страница 26: ...ve reliable communications Robustness is increased as this will provide an increased number of potential paths for wireless communications between master and salve devices This effectively increases the mesh network without the need for additional Detective units Figure 8 Repeaters SLAVE SLAVE REPEATER REPEATER MASTER Contents Exit Overview Operation Specification Service and maintenance Troublesh...

Страница 27: ...act that another Detective unit in the network is in Gas Alarm or that a Detective on the network has turned off due to an exhausted battery A Network Alert received by a Detective Net device via the wireless network shall activate a Network Alert on the locally attached Detective This will cause the Detective to go into Network Alert the beacon and lights will flash at a slower rate than a Gas Al...

Страница 28: ...ert is to signify a difference to the Gas Alarm or Network Alert The following conditions can cause a Modulated Alert to be instigated A slave device losing network connection to a master device see Section 1 9 2 A Detective Net device detects a low internal battery see Section 1 9 4 A Detective Net device detecting an internal fault see Section 1 9 6 i i A Detective Net device in Modulated Alert ...

Страница 29: ...lar intervals The master Detective Net device will indicate a slave device has lost connection and is attempting to re establish connection by a double amber flash on LED2 It must be noted that due to the mechanism of the wireless network it may take several minutes for LED2 on the master to be illuminated amber If a slave device cannot re establish wireless connection to the master LED2 will flas...

Страница 30: ...ber indicating network communication has not be re established implement the Force Communications feature see Section 1 7 2 to quickly re establish communications This process must be repeated for each slave device that has lost network connection and LED2 is double flashing amber i i If this process is not followed dependant upon the network configuration it may take up to an hour before the whol...

Страница 31: ...into low battery alarm there will be no indication of this on the wireless network 1 9 6 Internal Fault Detective Net internally monitors it s status and if an internal fault is detected it will indicate this by illuminating the LED s in turn from right to left and then immediately left to right It will then pause for 5 seconds and repeat this cycle It will also initiate a Modulated Alert see Sect...

Страница 32: ...vironmental conditions Maximum Devices Maximum number of devices in a network is 25 Approvals IECEX Ex ia IIC T4 Ga Tamb 20 C to 55 C ATEX II 1 G Ex ia IIC T4 Ga Tamb 20 C to 55 C Compliance EN 300220 2 V2 3 3 2010 02 EN301489 3v1 4 1 EN301489 1v1 9 2 EN50270 2006 Type 1 EN60950 1 2006 A12 2011 IEC60950 1 2005 2nd Edition A1 2009 Available Frequencies 433MHz 868MHz variant available if required de...

Страница 33: ... the devices develops a fault it should not be opened or a repair attempted as this may impair intrinsic safety and invalidate safety certification and warranty of Detective Net Contents Exit Overview Operation Specification Service and maintenance Troubleshooting Warranty Glossary Contacts Accessories ...

Страница 34: ...icated by a continuous flash on LED1 Toggle functionality of device to a slave device A slave device cannot be removed from the network unlearn process from master device not successful Slave and master devices not a minimum of 1m apart Master device not in learn mode Slave device not in unlearn mode Place master and slave device a minimum of 1m apart and repeat learn process Check the master devi...

Страница 35: ...es initiated Use extended 10m or 20m interconnecting cables to elevate Detective Net to improve network connectivity Deploy Detective Net devices as repeaters to improve network robustness in challenging environments Relearn slave to master device Replace interconnecting cable and repeat network connection test Detective Net LED s illuminating in turn from right to left then left to right repeated...

Страница 36: ...necting Cable 0 7m E070010 Interconnecting Cable 10m E070011 Interconnecting Cable 20m M041147 Detective Fixed Mount Bracket M03219 Clip mounting screws M040401 Protection Vent Contents Exit Overview Operation Specification Service and maintenance Troubleshooting Warranty Glossary Contacts Accessories ...

Страница 37: ... systems that can go further be smarter and be easier than ever before RICOCHET enabled wireless devices receive and repeat wireless transmissions from other devices The size scalability and range of an entire system are extended as wireless signalling is no longer limited by point to point communications Each RICOCHET enabled device provides alternative wireless transmission routes Should a wirel...

Страница 38: ...ut a Crowcon Returns Number CRN It is essential that the address label is securely attached to the outer packaging of the returned goods The guarantee will be rendered invalid if the instrument is found to have been altered modified dismantled tampered with or has not used Crowcon spares for replacement parts or has been serviced or repaired by any party not authorised and certified by Crowcon to ...

Страница 39: ... guarantee shall not affect a customer s statutory rights Crowcon reserves the right to apply a handling and carriage charge whereby units returned as faulty are found to require only normal calibration or servicing which the customer then declines to proceed with For warranty and technical support enquiries please contact Customer Support Tel 44 0 1235 557711 Fax 44 0 1235 557722 Email customersu...

Страница 40: ...232 eu crowcon com SG Block 194 Pandan Loop 06 20 Pantech Industrial Complex Singapore 128383 65 6745 2936 sales crowcon com sg CN Unit 316 Area 1 Tower B Chuangxin Building 12 Hongda North Road Beijing Economic Technological Development Area Beijing PRC 100176 86 10 6787 0335 saleschina crowcon com www crowcon com www crowcon us Contents Exit Overview Operation Specification Service and maintenan...

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