Crowcon Detective Net Manuale utente
H2S
CO
CH4
M070019/ENG
Issue 1 Jul 2013
Detective Net
User & Operator Manual
Detective Net
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Contents
Contents
3
CONTENTS
Functional Overview ....................................5
Safety Information......................................6
Glossary .............................................10
1. Operation .........................................12
1.1 In the box ...............................................12
1.1.1 Box contents ........................................12
1.2 Device details............................................12
1.3 Connection to Detective ...................................13
1.4 LED indications ..........................................14
1.4.1 LED1 - Power/Learn Mode (Red LED) ....................14
1.4.2 LED2 – Network Status (Red/Amber/Green LED)...........14
1.4.3 LED3 - Alarms (Red LED) ..............................15
1.4.4 LED4 – Master/Slave (Green LED) .......................15
1.4.5 Battery Indication LED (Red LED) .......................15
1.4.6 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 Conguration .....................................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 Adding additional slave devices to the network ...........20
1.6.7 Removing Slave Devices from the Network ...............20
1.6.8 Power Down master or slave device .....................21
1.6.9 Powering Up a Previously congured network ............21
Exit
4
1.7 Network Deployment......................................22
1.7.1 Deployment Process..................................22
1.7.2 Force Communication ................................23
1.7.3 Network Topology ....................................24
1.8 Alarms and Alerts ........................................27
1.8.1 Gas alarm ...........................................27
1.8.2 Network Alert ........................................27
1.8.3 Modulated Alert ......................................28
1.9 Network Operation .......................................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 specication ...........................32
3. Service and maintenance ............................33
4. Troubleshooting ....................................34
5. Accessories .......................................36
6. RICOCHET™ Mesh Technology .......................37
Warranty .............................................38
Crowcon contacts .....................................40
Exit
5
Functional Overview
i This manual should be read in conjunction with the Detective+ user manual.
Detective Net is a cable replacement wireless solution for Detective or Detective+ allowing wireless
transmission of gas alarm events between devices.
A gas alarm event on a Detective+ shall cause an alert to be transmitted to all other Detective Net
devices on the network which in turn will cause all Detective+ units in the network to go into alert.
This will ensure that all personnel being protected by the 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 congured 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 can be either congured prior to deployment or once the devices are
deployed. It is also possible to add or remove further slave devices once a network is congured and
operational.
Contents
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Overview
Operation
Specication
Service and
maintenance
Troubleshooting
Warranty
Glossary
Contacts
Accessories
6
Safety Information
• Detective Net is a hazardous area certied 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 ofce 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 certication 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 ofce or agent, for details reference the ‘Crowcon Contacts’ section of the manual
• Risk of static discharge. During installation in a xed location take care to avoid static
generating mechanism. Once installed do not touch certication label on rear of device if a
ammable 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.
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7
• The entity parameters of Detective Net are:
Uo = 3.7 V Ui = 10 V
Io = 14.3 mA Ii = 25 mA
Po = 8.7 mW Pi = 62.5 mW
Co = 999 uF Ci = 240 nF
Lo = 173 mH Li = 0
Lo/Ro = 2.68 mH/Ω
• When used and installed in accordance with IEC/EN60079-25 and IEC/EN60079-14, Detective
NET is suitable for use in Zones 0, 1, 2 for Groups IIA, IIB or IIC and Temperature Classes T1 –
T4 provided any device(s) Detective NET is connected to also provides an appropriate Level of
Protection, Group Classication and Temperature Classication.
• 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 meets the dielectric strength requirement of clause 6.3.13 in IEC/EN60079-11.
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8
Certication label
The certication marking is as follows:
Figure 1: Certication label
• Detective Net is certied for use in ambient temperatures in the range -20°C to +55°C (-4 to
131°F).
Applicable Standards
Refer to equipment marking for conrmation of applicable certication before use.
IECEx
IEC 60079-0 6th Edition (2011)
Electrical apparatus for explosive gas atmospheres Part 0: General requirements
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 ULD 13.0004X
2 BLACKLANDS WAY
ABINGDON BUSINESS PARK
OX14 1DY
UNITED KINGDOM
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9
ATEX
EN 60079-0:2012
Electrical apparatus for explosive gas atmospheres Part 0: General requirements
EN 60079-11: 2012
Explosive atmospheres - 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
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Overview
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10
Glossary
This section details the terms used within this manual.
Detective Net Master Device
One device in each network must be congured to be a master device that will control the network
and all slave devices.
Detective Net Slave Device
A network will consist of one master device that controls the network; all other devices will be slave
devices.
Network Hopping
Network hopping describes the process of the master Detective Net device communicating not
directly with a slave device but by passing the message through another slave device, or ‘hopping’.
Learn Mode
All slave devices must be congured to operate with the master device in the wireless network.
Learn Mode describes 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 cause all other Detective+ units within the network to go into network alert mode,
beacon and lights will ash at a slower rate than a gas alarm to differentiate it.
Force Communication
If no wireless connection exists between devices, the force communication feature can be utilized to
re-establish communications by pressing any button on a slave device.
Contents
Exit
Overview
Operation
Specication
Service and
maintenance
Troubleshooting
Warranty
Glossary
Contacts
Accessories
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