Flameproof Gas Detection

Pellistor Replacement Infrared Type FGD 5/6-IR

For the direct replacement of oil and gas industry pellistors

Pellistor Replacement Flammable Gas Detector

Hazardous Area Certification Data

Certificate No's

IECEx KEM 06.0022U | Code Ex d IIC Ta -20 to +60 deg. C (T4)

KEMA 03ATEX2247U | Code II 2 G Ex d IIC Ta -20 to +60 deg. C (T4)

Download Certificates - IECEx | ATEX

Features

  • Temperature compensated infrared sensor for detection of Methane and other Hydrocarbon gases.
  • Compatible with industry standard control panels.
  • Eliminates all poisoning problems associated with pellistors.
  • No routine maintenance required.
  • Minimises operating costs.
  • Weatherguard protects sensor from rain and salt spray.
  • Remote gas testing facility.
  • Does not utilise mirrors, lenses or separate heaters.
  • Self heating sensor to protect against obscuration.
  • Output signal can be set as rising or falling.
  • 3.2 to 7.5 volt dc operating range.
  • Constructed in grade 316 stainless steel and nylon.
  • Tested and approved by major oil companies.

Description

The FGD5/6-IR Infrared Flammable Gas Detector is available in two different versions:-

  • A Voltage Output, Pellistor Replacement version.
  • A Current Output, 4-20mA version.

The Voltage Output, Pellistor Replacement version of the FGD5/6-IR is a direct replacement for existing pellistor a positive output.

Unless otherwise requested, the FGD5/6-IR is set during manufacture to provide an output signal of 20mV per % volume methane. However, it can be configured to provide an output signal of between 15 and 30mV per % volume methane. This enables it to simulate the output from the various pellistor types currently in use.

In order for the FGD5/6-IR to simulate the wide range of pellistor types in use, the voltage output type has two different operating current versions available:-

  1. Type 200 version - having a nominal 200mA operational setting. This version has a typical current range from 160 to 250mA. This unit is stamped '200' on its top rim.
  2. Type 300 version - having a nominal 300mA operational setting. This version has a typical current range from 250 to 350mA. This unit is stamped '300' on its top rim.

In order to comply with the certification requirements, the gas detector must be installed and terminated into a suitable Ex d flameproof junction box.

Plug-in Sampling Adaptor

A plug-in sampling adaptor is available for applications where no weather guard is fitted. This can be used in two ways:-

  1. Routine gas testing - where a known test gas sample is temporarily applied to the FGD5/6-IR to confirm its operation.
  2. Sampling systems - where the plug-in adaptor is permanently connected to the FGD5/6-IR and gas samples are drawn through sample tubes.
FGD5/6-IR Adaptor

The adaptor plugs directly into the gas inlet in the main body of the FGD5/6-IR. The standard fitting is a push fit connector for 6mm O.D tubing. Other fittings are available upon request.

FGD5/6-IR Gas Detectors - Order Codes

Stock No. Description
SS660-200W FGD5/6 Infrared Pellistor Replacement 0-100% LEL (200mA Version) Complete with Weatherguard
SS660-300W FGD5/6 Infrared Pellistor Replacement 0-100% LEL (300mA Version) Complete with Weatherguard
SS660-200A FGD5/6 Infrared Pellistor Replacement 0-100% LEL (200mA Version) Complete with Metal Sampling Adaptor Kit
SS660-300A FGD5/6 Infrared Pellistor Replacement 0-100% LEL (300mA Version) Complete with Metal Sampling Adaptor Kit
SS661-200W FGD5/6 Infrared Pellistor Replacement 0-100% Volume (200mA Version) Complete with Weatherguard
SS661-300W FGD5/6 Infrared Pellistor Replacement 0-100% Volume (300mA Version) Complete with Weatherguard
SS661-200A FGD5/6 Infrared Pellistor Replacement 0-100% Volume (200mA Version) Complete with Metal Sampling Adaptor Kit
SS661-300A FGD5/6 Infrared Pellistor Replacement 0-100% Volume (300mA Version) Complete with Metal Sampling Adaptor Kit
SS662 FGD5/6 Weatherguard
SS663 FGD5/6 'C' Spanner
SS665 FGD5/6 Duct Mounting Kit
SS674 FGD5/6 Metal Sampling Adaptor

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