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AM1751 Secondary Reference PRT User’s Guide

                 

 

 

Rev. 201609V3 

3/10

1  Introduction 

 

1.1  Main Application 

AM1751 Secondary Reference Platinum Resistance Thermometer 
(PRT)

 

is an interpolating instrument converting temperature to 

resistance. It works together with a readout device to measure 
temperature or change of temperature. It has wide applications for dry-
wells or temperature baths. 

1.2  Main Features 

 

High accuracy: 0.015 ºC at 0.01 °C 

 

Temperature range: 

-200 °C to 670 °C  

 

Durable and shock resistance  

1.3  Calibrations 

It is recommended to calibrate this PRT annually over the full 
temperature range. In between annual calibrations, user can check the 
drift rate by comparing Rtpw against the last calibration results. Refer 
to specifications section for normal drift rate. 

 

 

Summary of Contents for AM1751

Page 1: ...Rev 201609V3 AM1751 Secondary Reference Platinum Resistance Thermometer User s Guide Please download the latest version at www accumac com...

Page 2: ...librations 3 2 Specifications 4 2 1 Specifications 4 3 General Operations 5 3 1 Connecting to the readout device 5 3 2 Drive Current 5 3 3 Stability of Readings 5 3 4 Immersion Requirements 5 3 5 Ther...

Page 3: ...live component 5 Follow all other safety guidelines listed in this user s guide Cautions Follow these guidelines to avoid possible damage to the instrument 1 Avoid mechanical shocks DO NOT drop or sla...

Page 4: ...e temperature or change of temperature It has wide applications for dry wells or temperature baths 1 2 Main Features High accuracy 0 015 C at 0 01 C Temperature range 200 C to 670 C Durable and shock...

Page 5: ...005 C Self heating 50 mW C Response Time 9 seconds for 63 response to step change in water moving at 3 feet per second Measurement Current 0 5 mA or 1 mA Sensor Length 32 mm Sensor Location 5 mm from...

Page 6: ...ach end of the sensor are identified by red black and white blue insulation 3 2 Drive Current AccuMac recommends 1mA as drive current to ensure the best measurement 3 3 Stability of Readings To achiev...

Page 7: ...has gone through an annealing process and stability test to minimize the thermal EMF which is caused by either impurities of sensing element or temperature differentials at lead wires connection poin...

Page 8: ...ssible b When shipping the PRT use protective box and other protective packaging materials to minimize mechanical shocks as much as possible c When using dry blocks make sure the well diameter is appr...

Page 9: ...service Be sure to have the model number and serial number of your PRT available 5 2 Problem Causes and Solutions a R0 Rtpw becomes higher significantly This is likely caused by mechanical shocks The...

Page 10: ...ty period begins on the date of the shipment Parts product repairs and services are warranted for 90 days The warranty extends only to the original buyer or end user customer of an AccuMac authorized...

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