AccuMac AM1762 User Manual

AccuMac AM1762 User Manual

Secondary standard platinum resistance thermometer

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AM1760/1762 Secondary Standard
Platinum Resistance Thermometer
User's Guide
Please download the latest version at www.accumac.com
Rev. 201609V3

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Table of Contents
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Summarization of Contents

Safety Warnings and Cautions
Warnings: Personal Injury Prevention
Guidelines to avoid personal injury during instrument operation.
Cautions: Instrument Damage Prevention
Guidelines to avoid damage to the SPRT.
1 Introduction
1.1 Main Application
Describes the temperature range and use of the SPRT for calibration.
1.2 Key Features
Lists primary characteristics like accuracy, temperature range, and drift.
1.3 Calibration Requirements
Discusses the need for calibration and recommended intervals for the SPRT.
2 Specifications
2.1 SPRT Specifications
Detailed technical specifications including range, accuracy, and dimensions.
3 General Operations
3.1 Connecting to Readout Device
Instructions for connecting the four-wire cable to a readout device.
3.2 Drive Current
Recommends 1mA drive current for optimal measurement performance.
3.3 Stability of Readings
Advises allowing time for SPRT stabilization before taking readings.
3.4 Immersion Requirements
Explains the need for correct immersion depths to minimize stem effect errors.
3.5 Thermal EMF
Discusses minimization of thermal EMF through annealing and stability tests.
3.6 Over Heating
Warns about potential seal breach from prolonged overheating of the SPRT.
4 Care and Handling Guidelines
4.1 Shocks and Vibrations
Instructions to avoid physical shocks and vibrations when handling the PRT.
4.2 Contamination Prevention
Advises keeping the PRT clean and avoiding contamination.
4.3 Overheating Prevention
Instructions to avoid using the PRT above its specified temperature range.
5 Troubleshooting
5.1 Troubleshooting Steps
General advice on troubleshooting abnormal PRT functions and contacting support.
5.2 Problem Causes and Solutions
Explains common issues like R0/Rtpw changes and their likely causes.

Table of Contents