Ametek R4 System 4 User Manual
Ametek R4 System 4 User Manual

Ametek R4 System 4 User Manual

Low temperature thermometer

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R4 Low Temperature Thermometer
User Guide
Issue 3
28 April 2015
Publication Nº 807382
Language: English
Copyright © 2003 - 2015 Land Instruments International

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Summary of Contents for Ametek R4 System 4

  • Page 1 R4 Low Temperature Thermometer User Guide Issue 3 28 April 2015 Publication Nº 807382 Language: English Copyright © 2003 - 2015 Land Instruments International...
  • Page 2 IMPORTANT INFORMATION - PLEASE READ Health and Safety Information Read all of the instructions in this booklet - including all the WARNINGS and CAUTIONS - before using this product. If there is any instruction which you do not understand. DO NOT USE THE PRODUCT. Safety Signs WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or...
  • Page 3 This instrument complies with current European directives relating to Electromagnetic Compatibility 89/336/EEC, Low Voltage Directive 73/23/EEC, and ATEX Directive 94/9/EC. The Quality Management System of Ametek Motors (Shanghai) Co. Limited is approved to ISO9001:2008 for the Design and Manufacturing of Motors and the Manufacturing of Gas Analysers.
  • Page 4 R4 Thermometer User Guide...
  • Page 5: Table Of Contents

    User Guide R4 Thermometer Contents Introduction About the Thermometer Unpacking the Thermometer Nomenclature Specifications Installing the Thermometer Positioning the Thermometer Target Size Thermometer Operation Alignment Laser Aiming the Thermometer at the Target Electrical Connections Connections to the LMG Signal Processor Maintenance Accessories Protective Jacket Assembly...
  • Page 6 R4 Thermometer User Guide Fig. 1 Land R4 thermometer S4970222 Air Purge Thermometer Jacket Back Cap Fig. 2 System 4 Thermometer with Air Purge, Protection Jacket and Back Cap S4970223...
  • Page 7: Introduction

    User Guide R4 Thermometer Introduction This User Guide gives the necessary information required to operate a LAND R4 Thermometer. 1.1 About the Thermometer The LAND R4 Thermometer is an accurate, non-contact thermometer designed for use in conjunction with a LAND LMG signal processor containing an R4 I/O card (card type = 6) from which it derives the nominal +/-20V d.c.
  • Page 8: Specifications

    R4 Thermometer User Guide Specifications Thermometer type: R42x Temperature range: 300 to 600°C Uncertainty: ±5°C Repeatability: Detector: InGaAs, Silicon Response time: 1s to 98% Output: ≈10V d.c at 600°C Optics: Two element, reflective Nominal field of view: 30:1 Focus distance: R423 = 600mm R429 = infinity Ambient temperature range: 5 to 45°C Vibration: 3G any axis 10 to 300Hz Sealing:...
  • Page 9: Installing The Thermometer

    User Guide R4 Thermometer Installing the Thermometer If the thermometer is to be used in conjunction with a protection jacket and air purge (recommended), cross-refer to the Installation Guides provided with those accessories. Fig. 3 R4 Thermometer Installation Dimensions 3.1 Positioning the Thermometer A position should be chosen for the thermometer that is accessible for servicing and where it is not exposed to heat, fumes and water spray etc.
  • Page 10: Target Size

    R4 Thermometer User Guide 3.2 Target Size The R423 Thermometer is nominally focused at 600mm. The R429 Thermometer is focused at infinity. Fig. 4 R4 Thermometer Target Size tables Fig. 5 R4 Thermometer laser warning labels Page 4...
  • Page 11: Thermometer Operation

    User Guide R4 Thermometer Thermometer Operation 4.1 Alignment Laser Warning CLASS 2 Laser Product. DO NOT stare into laser beam. (1.0mW maximum output at 635nm) DO NOT look directly towards the thermometer window, or into the laser beam during operation. If the laser is projected onto a highly reflective surface, DO NOT look at the laser spot from a position where a direct (‘mirror-like’) reflection may enter the eye.
  • Page 12: Aiming The Thermometer At The Target

    R4 Thermometer User Guide 4.2 Aiming the Thermometer at the Target When the thermometer has been correctly installed in the desired location, it must then be aimed at the target area using the in-built Laser Alignment facility. The laser is triggered into operation by the use of a push button switch which applies a transient signal (changing from a positive voltage to 0V) to the signal 4 terminal.
  • Page 13: Connections To The Lmg Signal Processor

    User Guide R4 Thermometer Electrical connections to the thermometer Lugs Keyway Marker must be made through the pre-wired plug supplied with the thermometer or through the plug housed in the protective jacket back cap. Marker To connect either plug type to the thermometer socket: •...
  • Page 14: Maintenance

    R4 Thermometer User Guide Maintenance Thermometer maintenance consists mainly of ensuring that the front lens remains clean and free from contamination. If the lens becomes dirty, it is recommended that a soft, lint-free cloth and a suitable lens cleaning fluid is used to clean any contamination from the lens surface. Should it be found that the lens becomes repeatedly dirty, it may be necessary to utilise an air purge accessory which can be supplied by Land Instruments.
  • Page 15: Accessories

    User Guide R4 Thermometer Accessories The following section gives information about the range of mountings and accessories available for use with this thermometer system. If the thermometer is to be used in an environment where the ambient temperature is higher than that specified, or where the atmosphere contains a high proportion of dust/smoke/steam etc, then the thermometer must be housed in a Protective Jacket Assembly.
  • Page 16: Ratio Thermometry

    R4 Thermometer User Guide Ratio Thermometry A ratio (or two colour) thermometer measures the radiation from a target surface at two separate wavelengths. The two signals are then electronically divided to produce the ratio signal; this signal is taken as a measure of the target surface temperature: Ratio Signal = Voltage signal at short wavelength Voltage signal at long wavelength...
  • Page 17 PRODUCT WARRANTY Thank you for purchasing your new product from Land Instruments International. This Land manufacturer’s ‘back-to-base’ warranty covers product malfunctions arising from defects in design or manufacture. The warranty period commences on the instrument despatch date from the Land Instruments International Ltd.
  • Page 18 • Tel: +44 (0) 1246 417691 • Fax: +44 (0) 1246 410585 Email: land.enquiry@ametek.co.uk • www.landinst.com A M E T E K L a n d , I n c . • 1 5 0 F r e e p o r t R d .

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