Chentronics IScan3 Series Manuel utilisateur

MNL-ISCAN3, REVB INSTALLATION & OPERATION MANUAL Page 1 of 25

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KEEP THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE!

Read this manual before using this product. Failure to follow the instructions and safety precautions in this manual can result in

serious injury or death or damage to equipment.

Applicable Scanner Part Numbers

Contact Technical Support +1.866.821.5504 with any questions.

For a list of relevant patents and trademarks, please see http://www.chentronics.com/legal-notices.

PART NUMBER

MODEL

AREA CLASSIFICATION

TEMP RATING

FEATURE

CONNECTOR PINS

04004999-MB

iS3-MB

CLASS I/DIVISION II

-40°C to 80°C

Fully Programmable –Must Be

Configured Prior to Use

04004999-SB

iS3-SB

CLASS I/DIVISION II

-40°C to 80°C

Limited Programmability

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Contents 
IMPORTANT SAFETY INFORMATION..................................................................................................................................................3 
CUSTOMER SUPPORT ........................................................................................................................................................................5 
PRODUCT FEATURES..........................................................................................................................................................................6 
EASE OF INSTALLATION ................................................................................................................................................................................6 
THERMAL PROTECTION................................................................................................................................................................................8 
TECHNICAL SPECIFICATIONS ..............................................................................................................................................................9 
DEFINITIONS..............................................................................................................................................................................................9 
SPECIFICATION TABLE................................................................................................................................................................................10 
Technical Specification NOTES ........................................................................................................................................................11 
DEFAULT CONFIGURATION (SETTINGS)..........................................................................................................................................................12 
WIRING INSTRUCTIONS ...................................................................................................................................................................13 
WIRING DIAGRAM....................................................................................................................................................................................13 
Wiring Notes ...................................................................................................................................................................................13 
CABLE CONNECTION..................................................................................................................................................................................16 
POWER/CONTROL CABLE INSTALLATION .......................................................................................................................................................16 
LOCKING NUT INSTALLATION ......................................................................................................................................................................16 
COMMUNICATIONS WIRING ...........................................................................................................................................................18 
RS-485..................................................................................................................................................................................................18 
“DAISY CHAIN”CONFIGURATION.................................................................................................................................................................19 
SPLIT OR “Y” CONFIGURATION....................................................................................................................................................................20 
REMOTE FILE SELECT.................................................................................................................................................................................21 
SIGHTING THE SCANNER..................................................................................................................................................................22 
FLAME LINE OF SIGHT................................................................................................................................................................................22 
RING OF LIGHT SCANNER STATUS DISPLAY.....................................................................................................................................................23 
MAINTENANCE................................................................................................................................................................................24 
CLEANING THE LENS..................................................................................................................................................................................24 
SPECIAL,“X”, CONDITIONS OF USE..............................................................................................................................................................25 
 
 

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IMPORTANT SAFETY INFORMATION

Read All Instructions before Using Equipment

The instructions provided in this manual have been prepared to serve as a general guide. It is intended for use by

qualified personnel with knowledge of equipment of this type. It is not intended to cover all possible variations in

equipment or to provide for specific operating problems which may arise.

You are responsible for adhering to all warnings or cautions provided in this Manual.

In addition to any general safety measures provided in this Manual, you must comply with all current national, state,

local and company safety regulations at all times.

Safety Symbols used in this manual comply with ISO 3864.

THESE SYMBOLS ARE USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY HAZARDS.

OBEY ALL SAFETY MESSAGES THAT FOLLOW THESE SYMBOLS TO AVOID POSSIBLE INJURY OR DEATH.

Indicates a hazard with a high level of risk which, if not avoided will result in death or

serious injury.

Indicates a hazard with a medium level of risk which, if not avoided could result in

death or serious injury.

Indicates a hazard with a low level of risk which, if not avoided will result in minor or

moderate injury.

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EXPLOSION HAZARD

Do not open the equipment cover or service the equipment if an explosive atmosphere may be present.

Equipment must be installed and serviced by qualified personnel in accordance with applicable local and

national codes, standards, and ordinances.

Lisez toutes les instructions avant d'utiliser l'équipement

Les instructions fournies dans ce manuel ont été préparées pour servir de guide général. Il est destiné à être utilisé par

du personnel qualifié connaissant l'équipement de ce type. Il n’est pas destiné à couvrir toutes les variations possibles

d’équipement ni à régler les problèmes de fonctionnement spécifiques qui peuvent survenir.

Vous êtes responsable du respect de tous les avertissements ou mises en garde fournis dans ce manuel.

En plus des mesures de sécurité générales fournies dans ce manuel, vous devez respecter à tout moment toutes les

réglementations de sécurité nationales, nationales, locales et de l'entreprise.

Les symboles de sécurité utilisés dans ce manuel sont conformes à la norme ISO 3864.

CES SYMBOLES SONT UTILISÉS POUR VOUS AVERTIR DES RISQUES DE BLESSURES POTENTIELS.

RESPECTEZ TOUS LES MESSAGES DE SÉCURITÉ QUI SUIVENT CES SYMBOLES POUR ÉVITER LES BLESSURES POTENTIELLES OU LA MORT.

Indique un danger avec un niveau élevé de risque qui, s’il n'est pas évité, entraînera la

mort ou des blessures graves.

Indique un danger avec un niveau de risque moyen qui, s’il n'est pas évité, pourrait

entraîner la mort ou des blessures graves.

Indique un danger avec un niveau de risque bas qui, s’il n'est pas évité, entraînera des

blessures mineures ou modérées.

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TENSION DANGEREUSE

N'ouvrez pas le capot de l'équipement et ne le réparez pas si une atmosphère explosive peut être

présente. L'équipement doit être installé et entretenu par du personnel qualifié conformément aux codes,

normes et ordonnances locales et nationales applicables

Customer Support

For Technical Support

Inside USA Call: 866.821.5504

Outside USA Call: +1.607.334.5531

Website: www.chentronics.com

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Product Features

The iScan3 flame scanner is designed to detect flame from fossil fuels such as natural gas, refinery gas, waste gas, fuel oils,

biomass and coals. The iScan3 consists of an integrated viewing head and signal processor. No secondary signal processor or

amplifier is required.

Ease of Installation

QUICK-CONNECT BURNER MOUNT:

The simple cam-and-groove mechanism allows for quick mounting, release, and rotation of the scanner.

QUICK CONNECT I/O CABLE:

The iScan3 input connector allows quick disconnect even in hazardous areas

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LED STATUS INDICATORS; “Ring of Light”:

The iScan3 is equipped with a highly visible LED status indicator ring. This “Ring of Light” communicates the scanner’s

operating modes including FLAME SIGNAL STRENGTH, GAIN LEVEL (the amount of signal amplification), and

WARNINGS/FAULTS. This ring aids with “sighting”the flame; or in other words: proper aiming of the scanner. This

must be done with care to ensure that a good flame signal is present over a range of operating conditions. With the

“Ring of Light”, the operator can quickly recognize marginal conditions (such as low flame strength and/or high gain).

REMOTE FILE SELECT

The Remote File Select feature provides a means for selecting one

[A1]

of the configuration files resident within the

scanner. Single-Burner, “SB”, models have limited programmability while Multi-Burner, “MB”, models have a high

degree of programmability, as outlined in the table below.

SCANNER

PART NUMBER

USER PROGRAMMABLE FEATURES (with iScan Software)

4-20 mA

SIGNAL

MAPPING

4-20 mA

Calibrate

4-20 mA

Gain

SECONDARY

RELAY:

Redundant

Flame N.O. or

N.C. -or-

Fault N.O. or N.C.

DETECTION

SETTINGS:

Gain, Freq,

Threshold

MULTIPLE

SETUP

FILES

(max of 4)

RESPONSE TIMES

(FLAME ON/

FLAME OFF)

04004999-SB

YES

04004999-MB

YES

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Thermal Protection

The iScan3 Flame Scanner has redundant safety features for exposure above the maximum temperature rating. The modes of

operation are described below:

Mode

Internal Temperature (TINT)

4-20 Output Setting

Indicator Light Setting

Relay Operation

Normal

TINT ≤ 95°C

Normal (4-20 mA)

Normal

Warning

95°C < TINT < 100°C

3mA steady

Alternate left half yellow 0.5s

/ right half yellow 0.5s

Normal

Fault

100°C < TINT ≤ 105°C

2mA steady

Blink yellow 0.5s on 0.5s off

Relays Open and will not

Disable

TINT > 105°C

1mA steady

Yellow Solid

Relays Permanently Open

and will not Close

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Technical Specifications

Definitions

FLICKER –Flicker or Flicker Frequency refers to the modulation of flame intensity due to micro-explosions.

FDORT –Flame Detector ON Response Time –the period of time from flame intensity rising above the user adjustable

threshold to flame relay contacts closed.

FDRT –Flame Detector Response Time –the period of time between the loss of a sensed flame and the signal

indicating the absence of flame.

MFFRT –Marginal Flame Fail Response Time –period of time from flame intensity falling below the the user

adjustable threshold to the flame relay contacts open.

ROL –Ring of Light –multi-colored LED status indication on the back of the scanner.

iScan Software –Flame Scanner Communications software used to monitor and configure the iScan3 device.

GAIN –When a signal is amplified, GAIN is the ratio of the amplified signal relative to the original.

DISCRIMINATION –The ability to distinguish between multiple flames. An example of good discrimination is when

the MB scanner is able to recognize a pilot flame with other burner’s main fuel flame in the background. The status of

the background Flames

[A2]

does not affect the ability to detect the pilot flame (ON or OFF).

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Specification Table

AREA CLASSIFICATION

Hazardous/Non-Hazardous Area

Part Number

PN 04004999-SB, 04004999-MB

Area Classification

Input Cable

Quick Disconnect - Separate Cable

Weight

2.25 lb. (1.02 kg)

Mounting

1” NPT(F)

Purge Air NOTE 1

Flow

Pressure

5 scfm (8.5 Nm3/hr)

5” w.c. (13 mbar)

ROL - Ring of Light Status

Indicator

Color Coded Status

Field of View

6 Degrees

Optics

Quartz Lens

Sensor Type

Solid-State

Sensor Range

300 nm 750 nm

Communication

USB/RS485: up to 127 up to a distance of 4000 Ft. (1200 M).

Temperature

-40°C to 80°C

Humidity

0 to 100% Relative Humidity, Condensing

Input Power NOTE 2

24 VDC, +10%/-15%, 5.28 W (220 mA)

Relay Contacts NOTE 3

Primary Relay with Normally Open and Normally Closed Voltage Free Contacts (i.e.

NO contact closes when flame is detected, NC opens when flame is detected)

Secondary Relay with Voltage Free Contacts

(configurable as NO Flame Relay or Fault Relay configurable as NO or NC contacts)

0.125A @ 250 VAC Resistive Load

0.250A @ 125 VAC Resistive Load

1.0 A @ 24 VDC Resistive Load

Signal Output NOTES 4,5

Output #1, 4–20 mA, Flame Signal

Output # 2, 4-20 mA, Selectable as Gain or Internal Temperature

Maximum Current Loop Resistance = 750 ohms

FDORT (FLAME ON)

Configurable from 1-4 seconds in 1 second increments

FDRT (FLAME OFF)

Configurable from 1-4 seconds in 1 second increments

MFRRT

Configurable from 1-6 seconds in 1 second increments

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