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International Gas Detectors TOC-635, Installer'S Manual

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International Gas Detectors TOC-635 Installer'S Manual Download Page 42

PELLISTOR (CATALYTIC) FLAMMABLE
GAS DETECTOR INTERFACE 

P
Y

W

The Detector Node PCB is equipped with a Pellistor or Catalytic flammable gas detector 
interface. This supports all IGD manufactured pellistors as indicated below. Note that the 
correct pellistor option must be selected in the setup software routine for the pellistor to operate 
correctly.

The Pellistor can be mounted remotely from the PCB. When doing so do not exceed the 
indicated cable length.

For remote mounting use 1.5mmSQ Cable. Do not exceed 10M

V DC

Volts

Com

2.20

IGD Pellistors Supported

Type                                      Head         Head
                                              Current      Volts

MK3      ATEX EXD IIC T6    360mA         2.2V

MK6      Safe Area                 170mA        2.5V

MK7      Safe Area                 170mA        2.5V

MK8      ATEX                        170mA        2.5V

In operation and with zero air applied correctly to the detector the ‘balance’ between the two detector 
‘beads’ as measured P-Y and Y-W should not show a difference of more than 70mV. If the difference 
is larger than this then it could be an indication of aging or damage and the detector should be 
replaced.

This cable to the pellistor needs to 
be screened cable type, typically FP 
or CY. Use the commoning blocks 
provided for cable screens

Summary of Contents for TOC-635

Page 1: ...Guide 2 Wire Systems internationalgasdetectors com 44 0 161 483 1415 sales internationalgasdetectors com international gas detectors ltd International Gas Detectors 2 W I R E S Y S T E M S Gas Detecti...

Page 2: ...Each Detector Node Has Multiple I O ALL OK First Fit Cabling Fit Detector Nodes Fit Additional Devices Where You Need Them Safety Assured CO H2S LPG 4 20 Addressable 2 Wire WiFi Setup and Service Too...

Page 3: ...e required will depend on the complexity of the situation and the particular help you need IGD s gas detection systems are capable of installation by electrical installation engineers Design of a syst...

Page 4: ...SECTION 1 MOUNTING DETAILS FOR EQUIPMENT...

Page 5: ...SQ or 2 5mmSQ See IGD Cable System Calculator Typically SWA FP200 CY screened or Similar Note 150W and 24V DC Versions Can be Flush mounted into walls up to the front face flange 300W Versions have ac...

Page 6: ...D Cable System Calculator Typically SWA FP200 CY screened or Similar Note 150W and 24V DC Versions Can be Flush mounted into walls up to the front face flange 300W Versions have active ventilation and...

Page 7: ...ries 210mm 75mm 42mm 19mm 80mm TOCSIN 635 MICRO AND PLUS PHYSICAL Addressable 2 Wire Weight 2 7kg TOCSIN 750 PHYSICAL Installation Cables Supported Installation Cables 2 Core 1 5mmSQ or 2 5mmSQ See IG...

Page 8: ...des Share Common Mounting Details 145 0 126 0 128 5 COVER SECURING SCREW M20 x 1 5 40 0 25 0 7 0 EXTERNAL EARTH MKIII FLAMMABLE GAS DETECTOR SHOWN 40 0 110 128 0 Refer to individual data sheets for sp...

Page 9: ...om Face Side Face 56 5mm 30mm 10 o 20mm Cable Entries 360mm TOC 750 BAT1 7AH Battery Backup with 150W PSU TOC 750 BAT2 17AH Battery Backup with 300W PSU 460mm 292mm 115mm 20mm Front Face Bottom Face S...

Page 10: ...SECTION 2 SITING GAS DETECTORS...

Page 11: ...n the event of leaks However in the event of ventilation failure Helium could accumulate down towards the zone where personnel operate In this case a second set of life safety sensors would be appropr...

Page 12: ...ation Alarms 5M is a Maximum Detection Distance and Will be E ected by Topography Gas Levels Will Drop as Distance to Leak Source Increases Requiring Lower Alarm Set Points Heavier Than Air Gases Can...

Page 13: ...t of a site safety system IGD can work with operators to provide advice service and spares to ensure an appropriate level of cover Applications involving Cryogenically cooled gases such as liquid Nitr...

Page 14: ...cing downwards to protect from contamination Sensor Facing Down Sensor Mounted to Vertical Wall in Various Orientations Do NOT Mount With The Sensor Facing Upwards GENERAL MOUNTING POSITIONS ATEX BS E...

Page 15: ...or Away From the Sensor Face This Situation May Result in Contamination and or reduced Detection Capability Air Flows up to 6M S Are Allowable Without Any Performance Issue Across the front of The Se...

Page 16: ...Another option is to t IGD s range of annunciators Annunciators Annunciators are addressable devices typically tted at door entry points They provide a clear audible visual alarm in the event of a gas...

Page 17: ...SECTION 3 GENERAL CABLING PRINCIPLES CABLE TYPES AND CABLE SIZING...

Page 18: ...e no specific requirements and our typical advised cable types are indicated below Cable screens either foil and drain wire braid or armouring must be continuous between devices and grounded for effec...

Page 19: ...ill potentially cause damage to the PCB and or connector mating parts and invalidate any warranty If it is necessary to remove the PCB connectors use long nose pliers Note that connectors can be plugg...

Page 20: ...EL SN 20235 1 1 ADD 4110 GAS DETECTOR H2S LPG 0 100 LEL SN 20235 1 1 ADD 4110 GAS DETECTOR CH4 LPG 0 100 LEL SN 20235 1 1 ADD 4110 GAS DETECTOR CH4 LPG 0 100 LEL SN 20235 1 1 ADD 4110 GAS DETECTOR CO...

Page 21: ...ntrollers have an in built memory map allowing access to alarm status panel status readings etc using Modbus RTU protocol Wiring between units is as follows Refer to users guide for Modbus channel map...

Page 22: ...Series Annunciator Modules are interconnected as follows using two core cable The system is designed to operate using screened cable In some circumstances for instance in ATEX Zone 1 areas a protecti...

Page 23: ...250 500 750 1000 Toxic 32 32 32 30 Pellistor MK6 7 32 30 21 16 Pellistor MK3 25 20 14 11 Booster Module Required For Increased Detector Nodes Beyond Indicated Numbers 2 1 5mm Cable 15AWG Length M 250...

Page 24: ...SECTION 4 MAKING DEVICE CONNECTIONS TO DETECTOR NODES...

Page 25: ...Gell Lead Acid Batteries Fitted as an option where battery backup required Display Option 1 750 7 Colour Touch Screen HMI Display Option 2 650 635 2 x 8 RGB LCD and Jog Wheel Important In all cases ma...

Page 26: ...s Note dependent on PSU type the incoming voltage may require to be set using a switch setting between 110V AC and 230V AC If this is the case note the current switch setting indicated on the PSU labe...

Page 27: ...N 635 Incoming Panel Earth Battery Backup Battery Connection Point PSU is 100 to 240V AC 50 60Hz Cable Screens L N Note the backbox can be mounted so cable entries face either UP or DOWN the wall to s...

Page 28: ...ble Note that one 2 Wire addressable highway running Sentinel protocol can support up to 32 modules Each module can have up to 8 connected devices IGD Con guration software is used to con gure the mod...

Page 29: ...t Digital Input Pellistor Port Sounder Display Comm Port 1 2 3 4 5 6 7 TOC 750 Series ABS or Copper Free Aluminium For ATEX Versions IP65 using suitable glanding for TOC 750 IP68 for ATEX Versions 0 9...

Page 30: ...ector running at the same time You can also operate a beacon sounder from the module so long as its operating current at 24V DC is less than 100mA In addition there is a relay output that can be used...

Page 31: ...nd hold the right hand button release when all LED s go out The LED s now indicate the address in binary 2 The LED pattern now indicates the base address in binary Note it is only possible to see addr...

Page 32: ...on Sounders Connected Directly to the Controller A V Output Are Active on Any Alarm When the controller is rst powered the option is displayed for 10s to run the FIND wizard Select by pressing the jog...

Page 33: ...as channel 3 Front Panel E Stop can be disabled in panel setup shows as channel 4 This means the rst in eld detector will always show as Channel 5 Channel label stickers are provided for easy identi c...

Page 34: ...de module is designed to read the data from this address and report it back to the control panel using its own unique address This makes service replacement very simple as the detector assembly is pre...

Page 35: ...back EMF Where these are not fitted the following two diagrams provide guidance Failure to observe this may result in damage to the Detector Node IMPORTANT NOTE Power to switch external devices is NE...

Page 36: ...eened cabling I O Port 1 Wiring to I O Port 1 and 2 Select OUT SSR DUAL SW Option Each Detector Node has 2 multi function input output ports These can be con gured independently as either 4 20mA input...

Page 37: ...rnative Banshee Excel Version Beacon Sounder PN 5083101 Strobe Ve Strobe Ve Sounder Ve Sounder Ve Sounder Ve Sounder Ve Strobe Ve Strobe Ve I O Port 2 The Solid State Outputs Can be used to Switch LED...

Page 38: ...on Allows Logic inputs from External Devices Anything Less Than 1 5V DC is Treated as Off Anything Greater is On Select IN DIGITAL 0V Option TOC 10 Unit 1 TOC 10 Unit 2 External System V 4 20mA Spare...

Page 39: ...SW Normally ON Select IN Digital 24V I O Port 1 Call Point Relay O P 1 Call Point 12 24V DC I O Port 2 Call Point Connections Node I O Port Connections Illuminated Call Point Wiring Diagram Illuminate...

Page 40: ...cable and eld wiring to a volt free contact The Solid State Input Will Accept up to a 0 2 Hz Pulse Train Input From a Gas Meter or Similar Device With a Volt Free Contact The Following Scaling Option...

Page 41: ...d PN TOC MA ISO I O Port 1 I O Port 2 Wiring to I O Port 1 and 2 a For a 2 Wire Loop Powered Device Select OUT 4 20MA 24V Option b For a 2 Wire 4 20mA Device Externally Powered Device Select OUT 4 20M...

Page 42: ...ote mounting use 1 5mmSQ Cable Do not exceed 10M V DC Volts Com 2 20 IGD Pellistors Supported Type Head Head Current Volts MK3 ATEX EXD IIC T6 360mA 2 2V MK6 Safe Area 170mA 2 5V MK7 Safe Area 170mA 2...

Page 43: ...SECTION 5 Control Panel Interfaces and Connections...

Page 44: ...porting 32 Devices 128 Devices in Total Notes Two display options either 650 style with jog wheel or HMI Style touch screen display Note both displays can be tted at the same time which can allow the...

Page 45: ...in Total Notes Two display options either 650 style with jog wheel or HMI Style touch screen display Note both displays can be tted at the same time which can allow the HMI display to be remote from t...

Page 46: ...Display TOC 650 635 2x8 LCD Fitted to Controller PN TOC 635 PLUS Gateway Product Versions The hub cards indicated can be purchased as Gateways These are used in applications where it is desirable to...

Page 47: ...trial environments Failure to t this correctly may result in operational problems Note the indicated incoming Earth position E Note the link between the PSU earth and PSU 0V connections Signal cables...

Page 48: ...uts This is to prevent damage should the port be set to mA input The resistor prevents port damage should the port be configured to a mA input and the links left in place They appear during a FIND com...

Page 49: ...ll 4 relays are normally energised de energising on alarm or on loss of power to panel Panel Beacon Sounder Output The 750 hub card is fitted with two SSR outputs intended for use with Beacon Sounders...

Page 50: ...different ports on the same hub card TOC 650 Style display connects using an RS485 connection via 4 way JST style connector TOC 750 Style display connects through an RS485 Interface which allows the d...

Page 51: ...ress set up LED s and interface for the relay card In all Cases Relay contact ratings 5A 250V AC Non Inductive 5A 30V DC Non Inductive Spike suppression must be fitted Note that FAULT relays are norma...

Page 52: ...mal Conductivity Relay cards also have analogue and digital inputs that can be used to read data onto the system from external devices Setup of the inputs type range addressing etc is controlled via I...

Page 53: ...terminals can then be used to provide power to external devices Care should be taken not to exceed the overall capability of the internal PSU This option is a factory fit item A typical example shown...

Page 54: ...ery back options are available 7AH and 17AH as follows OR 650 or 750 Series Controller TOC 750 BAT1 7AH Option 150W PSU TOC 750 BAT2 17AH Option 300W PSU Note that the main control panel needs to be a...

Page 55: ...With Relay TOC 750 X NDE 0 79 Room Status Indicator TOC 750 AN x 1 03 Flammable or CO2 IR Sensor TOC 750 X xxx 0 96 Infra Red Refrigerant Sensor TOC 750X IRR 1 56 SF6 Sensor TOC 750X SF6 1 56 PID VOC...

Page 56: ...e Example Calculation 2 81 2 4 TOC 635 PLUS Controller with 10 Flammable Gas Detectors 17 07 0 75 1 15 1 71 0 93 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Use the table provided to work out the total...

Page 57: ...stem This may be due to the cable size being too small resulting in a large volt drop over the cable run or that there are a large number of devices drawing power Booster modules are mains powered and...

Page 58: ...ned as above 50 V AC with a 10 A rating In General Parallel runs of instrument cables and power cables should be avoided however where unavoidable adequate physical separation should be provided A spa...

Page 59: ...atch Control Panel Screen Display Location Tags If Required Order as TOC TAG A and supply Table of Required Tag Descriptions Cabling Fitted to Tray Using Stainless Steel Cable Ties Ceiling Height Bask...

Page 60: ...t Cable Tray Note Segregation Requirement Installation to be in Accordance with BS6761 amendment 3 Reg 521 11 201 BS EN 7671 2008 BS EN 50174 2 BS EN 6701 2016 and BS6739 2009 20mm White Plastic Condu...

Page 61: ...e and are Within 150mm of the Opening so it is Clear Which Room it is Associated With Ceiling Height Cable Tray Note Segregation Requirement Installation to be in Accordance with BS6761 amendment 3 Re...

Page 62: ...Installation to be in Accordance with BS6761 amendment 3 Reg 521 11 201 BS EN 7671 2008 BS EN 50174 2 BS EN 6701 2016 and BS6739 2009 Accessory Cables Typically Belden Style Security Cable 4502 FE Fo...

Page 63: ...ch Control Panel Screen Display Location Tags If Required Order as TOC TAG A and supply Table of Required Tag Descriptions Cabling Fitted to Tray Using Stainless Steel Cable Ties Gas Detection Cabling...

Page 64: ...n to be in Accordance with BS6761 amendment 3 Reg 521 11 201 BS EN 7671 2008 BS EN 50174 2 BS EN 6701 2016 and BS6739 2009 TYPICAL ROOM INSTALLATION SCHEME G Onto Dado Trunking Systems 20mm Plastic Co...

Page 65: ...ed and cables are stripped to the enclosed guide See Cable Calculator for Cable Core Size vs Distance VS Number of Devices Cable Screen or Drain Wire Tubing 6 x 4 Polyurethane Other Tube Options Avail...

Page 66: ...fitting a no volt release module to control the power to the gas valve this then requires manual re set of the supply before it is re instated With the module fitted to re instate the supply there mu...

Page 67: ...Notes...

Page 68: ...House Crosby Street Stockport SK2 6SH internationalgasdetectors com 44 0 161 483 1415 sales internationalgasdetectors com international gas detectors ltd International Gas Detectors 2 W I R E S Y S T...

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