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Related Manuals for AccuMac AM1850
Summary of Contents for AccuMac AM1850
- Page 1 AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide...
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Page 2: Table Of Contents
AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide Table of Contents Before you start ---- Warnings & Cautions ................ 2 Introduction......................... 3 Main Application ....................3 Main Features...................... 3 Calibrations ......................3 Specifications ......................4 Specifications...................... 4 General Operations ....................5 Connecting to the readout device................ -
Page 3: Before You Start
AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide Before you start ---- Warnings & Cautions Warnings: Follow these guidelines to avoid personal injury: 1. Only use this instrument in the manufacture specified temperature range. 2. The handle of this instrument can become hot when it is used to measure high temperatures for extended periods of time. -
Page 4: Introduction
AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide 1 Introduction 1.1 Main Application AM1860/1850 Standard Platinum Resistance Thermometer (SPRT) is an interpolating instrument converting temperature to resistance. It works together with readout device to measure temperature or change of temperature. It has wide applications for dry-wells or temperature baths. -
Page 5: Specifications
AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide 2 Specifications 2.1 Specifications 1850: -200°C to 500°C Temperature Range 1860: -200°C to 670°C Nominal 25 Ω or nominal 100 Ω Resistance Ratio W(Ga)>=1.11807 W(Hg)<=0.844235 1850 ΔR(0.01°C ) <0.002 °C/100 hours at 500°C Drift at 0.01°C* ΔR(0.01°C ) <0.008 °C/year 1860... -
Page 6: General Operations
White Yellow Blue Figure1 3.2 Drive Current AccuMac recommends 1mA as drive current to ensure the best measurement. 3.3 Stability of Readings To achieve the best accuracy, allow sufficient time for PRT to stabilize before taking the readings. 3.4 Immersion Requirements Stem effect can cause measurement errors due to heat lost or gained by the sensing element through the thermometer stem. -
Page 7: Thermal Emf
Do not submerge PRT handle when taking measurement. 3.5 Thermal EMF Each AccuMac PRT 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 point. -
Page 8: Care And Handling Guidelines
AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide 4 Care and Handling Guidelines 1. DO NOT subject the SPRT to any physical shocks and vibrations. a. When not using the SPRT, keep it in a place that’s not prone to drop, slam, bang, vibration or other strong physical contacts. -
Page 9: Troubleshooting
AM1860/1850 Standard Platinum Resistance Thermometer User’s Guide 5 Troubleshooting 5.1 Troubleshooting If the SPRT functions abnormally, it could be caused by several possible problem conditions that are described in this section. Try the solutions recommended and if the problems are still not solved, contact manufacture for warranty or repair service. -
Page 10: Limited Warranty & Limitation Of Liability
User’s Guide 6 Limited Warranty & Limitation of Liability Each product from AccuMac Corporation is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is 1 year for the Platinum Resistance Thermometer.