AM1640 Precision Industrial PRT 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 ................
AM1640 Precision Industrial PRT 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.
AM1640 Precision Industrial PRT User’s Guide 1 Introduction 1.1 Main Application AM1640 Precision Industrial Platinum Resistance Thermometer (PRT) 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.
AM1640 Precision Industrial PRT User’s Guide 2 Specifications 2.1 Specifications Temperature Range -200 °C to 420 °C Resistance at 0 °C Nominal 100 Ω 0.00385 Ω/ Ω/°C Temperature Coefficient ±0.04 °C at -200 °C Accuracy ±0.035 °C at 0 °C ±0.05 °C at 200 °C...
3 General Operations 3.1 Connecting to the readout device The AM1640 is equipped with a four-wire cable (see Figure 1). Four lead wires are used to cancel lead wire resistance. For best results, the readout device should be equipped to handle four-terminal resistors.
3.6 Over Heating The sensing element of AM1640 PRT is sealed inside an Inconel sheath to ensure the best stability and repeatability. The seal can be breached if the PRT is over heated for an extended period of time.
AM1640 Precision Industrial PRT User’s Guide 4 Care and Handling Guidelines 1. DO NOT subject the PRT to any physical shocks and vibrations. a. When not using the PRT, keep it in a place that’s not prone to drop, slam, bang, vibration or other strong physical contacts.
AM1640 Precision Industrial PRT User’s Guide 5 Troubleshooting 5.1 Troubleshooting If the PRT 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.