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Infra-red Fire Detection System
Internal Lens Cleansing & Purge Air Configuration
Issue
1
2
Patol Limited
Rectory Road,
Padworth Common,
Berkshire. RG7 4JD
United Kingdom.
Tel : +44 (0) 118 9701 701
Fax : +44 (0) 118 9701 700
Email : info@patol.co.uk
Web : www.patol.co.uk
Series 5000 - Manual 5010 / 5020
5000 Series
5010 Sensor Head - 5020 Controller
SPECIFICATION
INSTALLATION - COMMISSIONING
OPERATION - MAINTENANCE
Document Ref : D1125
Change
Original
Additions
D1125 - Issue 2 - 1 December 2009
Patol Limited
Date
25/05/05
01/12/09
Remarks
Page 1 of 15
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Summary of Contents for Patol 5000 Series
- Page 1 Patol Limited 5000 Series Infra-red Fire Detection System Internal Lens Cleansing & Purge Air Configuration 5010 Sensor Head - 5020 Controller SPECIFICATION INSTALLATION - COMMISSIONING OPERATION - MAINTENANCE Document Ref : D1125 Issue Change Date Remarks Original 25/05/05 01/12/09 Additions...
- Page 2 Patol Limited INDEX INTRODUCTION General Principles EQUIPMENT DETAIL Description Type 5010 Sensor Head Type 5020 Controller General Specification - Sensor & Controller Operational Programmability - DIL Switch Connections Series 5000 Blower Units INSTALLATION Sensor Head Controller Cable Purge Air Supply...
- Page 3 Patol Limited INTRODUCTION General The Patol 5000 Series of equipment is specifically designed for the protection of establishments and systems where a movement of materials with a potential fire hazard is a routine occurrence. The 5000 Series system employs enhanced Infra-red monitoring technology that enables the detection of fire initiating materials, whilst they are being transported, and before they have reached a flame condition.
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Page 4: Equipment Detail
Patol Limited EQUIPMENT DETAIL Description The 5000 Series system described here comprises three primary elements :- Sensor unit - Type 5010 Control Unit - Type 5020 Air Supply / Blower Unit The Sensor Unit is located above the materials transit path (e.g. conveyor) by means of the adjustable mounting bracket and aligned such that the monitored hazard passes through the sensor’s field of view. - Page 5 175 mm HEAD LAMP POLYCARBONATE (6.9 inches) RESET TEST TEST COVER Pa tol L imite d 5000 Series TWO PART SCREW TERMINALS 2.5 sq mm (14AWG) REMOVABLE PCB MODULE GREY POLYCARBONATE GLASS FILLED MOUNTING HOLES 157x 157 mm (6.18 x 6.18 inches) Fig.
- Page 6 Patol Limited General Specification (Sensor and Controller) 2.4.1 Electrical:- Supply Voltage : 20 - 30 Vdc Stand-by Current : 35 mA Maximum Current : 70 mA (Full Alarm) Terminals : 2.5 mm² (14 AWG) 2.4.2 Purge Air Supply:- Pressure : 5 mBar (2”WG) Delivery : 5.0 litres / sec (11 cubic feet per min)
- Page 7 Patol Limited Operational Programmability - DIL Switch The system is fitted with eight IR detectors that are arranged in pairs within a four channel configuration. The DIL switch located at the top of the controller PCB permits the selection of system parameters related to the triggering of these channels.
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Page 8: Sensor Head
The Sensor is connected to the Controller by means of a ten core shielded/ screened cable. This cable may be provided by Patol Ltd., as part of a “system package”, and may be of a five pair form. The screen (earth) of the cable should be tailed and connected as show in the above figure. - Page 9 Patol Limited Series 5000 Blower Units Where a suitable “on site” air supply is not readily available Patol 5000 Series air purge units may be employed. These devices are single and multistage centrifugal blowers that can be provided in a variety of configurations that accommodate differing application requirements such as air delivery volume / pressure, supply voltage and mounting arrangements.
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Page 10: Installation
Patol Limited INSTALLATION Sensor Head The angle and height of mounting determine the monitored width. Fig. 8 Height ° Angle Plane Of Conveyor Monitored Width The example shown on the chart is for a sensor mounted 0.8m above the transit path at an angle of 30°. This provides a maximum monitored width 55°... - Page 11 5000 Series Air Purge units (APBs) are centrifugal blowers available in a variety of multistage configurations. The standard unit is a two stage unit Type 5040, the second most prevalent is the four stage Type 5044.
- Page 12 POLE 1 Power Up Procedure 4.3.1 Check that the air supply is connected and operational. If a 5000 Series blower is employed this must be powered. 4.3.2 Check at the Sensor Head that purge air is blowing from the lens aperture.
- Page 13 Patol Limited Sensor Head & Purge Air Supply The purge air is monitored by a pressure switch located within the sensor casing. The switch is factory set to operate at approximately 3.74 mBar (1.5 inch water gauge). The operation of the switch is dependant on the differential pressure between the air input point to the Sensor and the external atmosphere.
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Page 14: Operation
Patol Limited OPERATION Normal When the system is healthy only the green supply LED will be illuminated. Alarm Condition An Alarm condition will occur on abnormal Infra-red detection by the Sensor Head. Normally this status will Latch On, however in special configurations the condition can be set to momentary operation;... -
Page 15: Maintenance
100W Lamp Bulb - (The Sensor responds to the glass temperature - not the visible light). Domestic Flat Iron (smoothing iron). Electrical or Catalytic soldering iron. Note : Infra-red LED Torches are NOT suitable for testing 5000 Series equipment. Patol Limited Rectory Road, Padworth Common, Berkshire, United Kingdom.
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