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User Guide

Landcal Blackbody Source

Type R1500T

Page 13

7  Calibration of Radiation Thermometers

7.1  Preparation

The furnace control setting will usually be the normal working temperature of 

the thermometer to be tested.  The target temperature is either that indicated 

by the measuring thermocouple displayed on the controller indicator, or that 

indicated by a standard radiation thermometer.

7.2  Thermometer calibration

When the source is stable at the chosen control temperature, place the 

thermometer under test in the holder and measure the thermometer output.  

Note the target temperature immediately.

7.3  Calibration procedures

When calibrating radiation thermometers it is important to follow documented 

step-by-step procedures to ensure that specified calibration conditions are met, 

irrespective of operator.  If difficulty is experienced in writing procedures, LAND 

Instruments International will be pleased to offer guidance.

Summary of Contents for LAND R1500T

Page 1: ...le 01246 410585 Email land infrared ametek co uk Internet www landinst com Land Instruments International 2008 2012 AMETEK Land Inc 150 Freeport Road Pittsburgh PA 15238 U S A Telephone 412 826 4444 F...

Page 2: ...at safety precautions are taken whenever the materials are handled Exposure to fibrous dust may cause respiratory disease When handling the material always use an approved respiratory protection equip...

Page 3: ...n It is possible that this equipment is to be installed on or near to machinery or equipment operating at high temperatures and high pressures Suitable protective clothing along with face and eye prot...

Page 4: ...s etc Design and Manufacturing Standards The Quality Management System of Land Instruments International is approved to BS EN ISO 9001 for the design manufacture and on site servicing of combustion en...

Page 5: ...ription 3 3 Specification 4 4 Electrical Supply 5 5 Commissioning 7 6 Using the Furnace 12 7 Calibration of Radiation Thermometers 13 8 Maintenance 14 9 Eurotherm Temperature Controller Type 3216CC 16...

Page 6: ......

Page 7: ...ller indication From previous work the indicated temperature has been found to agree with the radiance temperature to within 10 C at 1000 C when using thermometers operating at short wavelengths 2 The...

Page 8: ...some individuals be an irritant to the skin nose and throat Safety Note Refractory Fibrous Insulation This product contains alumino silicate wool products in its thermal insulation These materials ma...

Page 9: ...lection of standards will depend upon customer requirements e g working temperature range type of radiation thermometers to be calibrated etc Ideally the standards should be of a similar type to those...

Page 10: ...stalled in the source the distance from front face to cone point is 145mm 5 7in External aperture Approx 38mm 1 5in Emissivity Approximately 0 99 at short wavelengths Resistance heating elements 220V...

Page 11: ...m for 110 120V operation 300 500 volt PVC insulated 3 core cable Each core 2 5mm for 220 240V operation The colour code for the cable is Brown lead Live Blue lead Neutral Green Yellow lead Earth groun...

Page 12: ...ype R1500T CA970249 4 4 Wiring diagram GR Y L N E TC 2 3 5 9 Pin D connector RS 232 SSR ELEMENT S Mains filter L N R R Thermocouple HEAT PI G BU R BU Instrument switch Supply light F2 F2 F1 F1 F3 F3 R...

Page 13: ...ng elements and a set of element support brackets braids are supplied separately These items should be fitted as follows 1 Remove the stainless steel front panel unscrewing the four equally spaced scr...

Page 14: ...Page 8 Ceramic insulation Set of 6 elements held in place with support brackets Painted back panel Front insulation plug SiC target cavity Control thermocouple Stainless steel front plate Fig 3 Assemb...

Page 15: ...tions for the LANDCAL Blackbody Type R1500T 220 240V CA970250 Fig 5 Element connections for the LANDCAL Blackbody Type R1500T 110 120V CA970251 Term inal Post Element Braid Element Head Element Suppor...

Page 16: ...rocedure 2 When this check is completed two displays will be visible Upper display Actual source temperature Lower display Set point temperature 3 To modify the set point press the Up or Down button u...

Page 17: ...n or 25 pin to connect to the computer RS232 Cable Furnace to PC connections Furnace end of cable female Computer end of cable male 9 pin 9 pin 25 pin Rx 3 3 2 Tx Tx 2 2 3 Rx Com5 5 7 Com 7 8 4 5 Link...

Page 18: ...The controller s digital indicator on the side of the furnace displays the temperature measured Agreement between the thermocouple measurement and a reference standard radiation thermometer is better...

Page 19: ...dard radiation thermometer 7 2 Thermometer calibration When the source is stable at the chosen control temperature place the thermometer under test in the holder and measure the thermometer output Not...

Page 20: ...elements must be changed In the event of an element failure replace it in the manner described in Section 5 2 It is advisable to replace all elements if only one or two fail because new elements have...

Page 21: ...ed with a heatsink pad All remnants of the old heatsink paste must be removed The thin white heatsink pad must be fitted between the solid state relay and the plate to which it is mounted 5 Tighten th...

Page 22: ...e of operation These hidden features contain factory set parameters which should not be changed The Up and Down keys are used to alter the setpoint temperature in Level 1 operation and parameter value...

Page 23: ...ramp rate allowing heating and cooling at the maximum rate OFF is the default setting 9 4 Altering the Power Limit when applicable 1 Press the Scroll key until OP Hi Output High is displayed 2 Press...

Page 24: ...res The following spare parts are available for use with the Landcal Type R1500T Description Land Part N Silicon carbide target 135 161 Set of 6 heating elements 220 240 Volts 135 160 Set of 6 heating...

Page 25: ...ing case the bench to mid target dimension equals that of the optical bench assembly Note 2 Mounted onto the 36in 915mm long optical bench are vertical and horizontal adjustment positioners which allo...

Page 26: ...Landcal Blackbody Source Type R1500T User Guide Page 20...

Page 27: ...ters accessories and mountings and special instruments based on UNO Application dedicated processors based on LANDMARK Graphic ABTS S and ABTS U FTS VDT S and VDT U DTT FLT5 A This 36 month warranty i...

Page 28: ...onditions outside the Ambient Temperature Humidity and Vibration rating of the product environmental contamination solvent vapours deposition of airborne contamination cooling liquids of non neutral p...

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