Patol 5000, 5410 Series Manual

SERIES 5000

Model 5410 Infra-red Transit Heat Sensor

MANUAL

INSTALLATION - COMISSIONING

OPERATION - MAINTENANCE

Applicable to Unit Part Numbers 720-002 / 720-012

Serial Numbers 98538-01 onwards

Issue Change Date Remarks

1 Original 18/03/09 Based on D1140

2 Table 3 - reference corrected to D 15/11/12 Page 8

3 New document format 18/12/14

Contact Details:

Patol Limited
Archway House
Bath Road
Padworth, Reading
Berkshire
RG7 5HR
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.Patol.co.uk

1 D1145-3

SERIES 5000

1. INTRODUCTION

2. EQUIPMENT DETAIL

2.1 General Description

2.2 Relay Mode

2.3 Low Power Mode

2.4 Sensor Arrangement

2.5 Specification

2.6 Operational Programmability - SIL Switch

INDEX

1.1 General

1.2 Principles

2.7 Connections

3. INSTALLATION

3.1 Detection Coverage

3.2 Supply / Signal Cable

3.3 Purge Air Supply

4. COMMISSIONING

4.1 Cable Checks

4.2 Controller Set Up

4.3 Power Up Procedure

4.4 Purge Air Supply and Pressure Switch

4.5 Hot Body Simulation Tests

5. OPERATION

5.1 Normal

5.2 Alarm Condition

5.3 Reset

5.4 Fault Warning

5.5 Test

6. MAINTENANCE

6.1 General

6.2 Purge Air Filter

6.3 Fault Monitoring Functions

6.4 Infra-red Detection

2 D1145-3

1 2 3 4 5 6 7 8 9

200 C

320 C

SOLAR

o

o

10

Typical Black Bo dy Energy Em issions

5000 RESPONSE FILTER

WAVELENGTH (Micrometres)

SERIES 5000

1 INTRODUCTION

1.1 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 5410 Sensor 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.

The system has many applications within industries such as Power Generation, Coal Mining, Process
Plant, Road Transportation and Rail Networks and has been specifically designed to both meet the rigors
of these environments and to provide the reliability required.

The equipment monitors for fire and fire potential of materials in transit. The system can detect anomalies
where combustion has not yet been reached, but where there is sufficient energy for a fire initiation upon
destination arrival.

A typical example is in the coal feed systems on power stations where coal on the ‘out field stack’ may

very well smoulder with little adverse effect for long periods of time. However, if imported to the power
station it may have devastating effects on conveyor systems, holding hoppers, blending plants etc.

 Detection of hazards at temperatures below flame point including both embers and buried hot spots.

 Air purged system for Dusty environments with air pressure monitoring.
 Two wire operation - Powered by direct connection to standard fire trigger circuits or addressable

 Patol remote controllers/interfaces available for two wire operation.
 Volt free relay contact output operation selectable as standard.
 Twin high integrity detection circuit channels for maximum reliability.
 Unique reflective cone lensing system provides wide uniform coverage superior to some ember/spark

 Coincidence - Double Knock - option for unit detector channels as standard.
 Timed auto reset / coincidence analyser circuit.
 Tuned response - solar blind.
 High degree of ingress protection - IP66.
 Specifically designed for high EMC compliance - CE Marked.

1.2 Principles

The principle of operation is that
temperature dependant black body
emissions occur for all materials.
These emissions range through the
infra red spectrum to visible light.
Both the wavelength and level of
peak energy emission are related to
temperature.

The 5410 Sensor are designed to
detect the changes in these
emissions that occur when a hot
body enters the field of view of the
detector.

By the use of both optical filtering and electronic analysis of the various parameters the system is blind to
visible light from the sun or local luminaires, whilst being able to detect relatively low temperature material
moving through the field of view.

loop interfaces - Signalling mode user configurable to simulate smoke & heat detector protocols.

detectors.

Fig. 1

3 D1145-3

MONITORED MATERIAL

UP TO 2m

0° TO 55°

SENSOR

SIGNAL/SUPPLY CABLE

AIR

AIR FILTER

AIR PURGE UNIT

110/230Vac

AIR HOSE

SERIES 5000

EQUIPMENT DETAIL

2.1 General Description

The 5000 Series system described here comprises two primary elements :-

 Sensor Unit - Model 5410
 Air Supply / Blower Unit

The Sensor 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 unit’s field of view. The
height and angle of the sensor determine the width of the monitored path.

The 5410 Sensor outer case is equipped with an air hose spigot for connection of an air supply. This is
required such that a positive air pressure is maintained around the inner module sensor “windows”.

There is a continuous air flow from the outer case optical path aperture which stops dust settling on the
inner sensor module. Also, by maintaining a positive pressure within the enclosure, ingress of explosive
gas or dust is prevented. The arrangement can permit the unit to be employed in a Hazardous Area
depending on applicable local regulations.

The air purging is essential in dusty environments such as coal conveyors, and is recommended in even

relatively clean applications. A series 5000 air purge blower and filter unit is employed when an ‘on site’

air supply is not available. (See section 2.7)
A pressure switch is located within the unit to monitor the purge air and signals a loss of pressure as a

Fault

Fig. 2

The unit may be user selected to either of two principal operating settings which are referenced as :-

 “Relay Mode” - Operation from a 20 to 30 Vdc supply.
 “Low Power Mode” - Operation from a fire alarm trigger circuit / addressable loop.

A description of these arrangements is provided in sections 2.2 and 2.3 following.

4 D1145-3

ADDRESSABLE

LOOP INTERFACE

MODULE

ANALOGUE

ADDRESSABLE

FIRE ALARM

CONTROL PANEL

2 WIRE CONNECTION

ALARM & EOL

RESISTOR

CONFIGURATION

AS PER FIG. 2

2 WIRE ADDRESS LOOP

ALARM AND EOL
RESISTOR AS PER
FIRE PANEL
REQUIREMENTS

ALARM

FAULT

SUPPLY

CONVENTIONAL

FIRE CONTROL
PANEL AND/OR

PATOL SIGNAL

RELAY MODULE

2 WIRE TRIGGER CIRCUIT

SOLID STATE OUTPUT SWITCHES

*

*

FIRE RELAY

(NORMALLY DE-ENERGISED)

FAULT RELAY

(NORMALLY ENERGISED)

TRIP

ALARM

FAULT

SUPPLY

24Vcd

POWER SUPPLY

2 WIRE SUPPLY CIRCUIT

VOLT FREE CONTACTS

SERIES 5000

2.2 Relay Mode

The unit is equipped with relays which are enabled in this mode.
A 24 Vdc (nom) supply is required to operate the unit (max current 24mA).
The unit’s volt free relay contacts are used for signalling of Fire and Fault conditions.
The Fire relay is normally de-energised and energises on an infra-red detection alarm.
The Fault relay is normally energised and de-energises on power supply removal, module regulation failure

or loss of purge air.

Refer to figure 3.

5410 SENSOR HEAD

Fig. 3

2.3 Low Power Mode

In this mode the relays are disabled and the unit’s quiescent supply current is very low and of a similar

level to conventional Smoke and Heat detectors.

By the connection of appropriate resistor values to the sensor’s “solid state” outputs the unit will signal

Normal, Fire & Fault conditions by line current levels, in a manner that permits the unit to be connected
directly to fire control panels via alarm trigger circuits, or to the monitored inputs of addressable loop
interface modules.

The unit can also be employed with the two wire connection to a remote Patol signal relay module.

Refer to figures 4 & 5.

5410 SENSOR HEAD

Fig. 4

5410 SENSOR HEAD

5 D1145-3

Fig. 5