Limited Warranty & Limitation of Liability Each product from Fluke Corporation (“Fluke”) is warranted to be free from defects in material and work- manship under normal use and service. The warranty period is one year(s) for the thermometer. The warranty 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 a Fluke authorized reseller, and does not apply to fuses, dispo
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Table of Contents 1 Before You Start .................................................................................... 1 1.1 Symbols Used ............................................................................................................1 1.2 Safety Information ......................................................................................................1 1.2.1 WARNINGS .......................................................................................................
6.2 User Settings Screen ...............................................................................................57 6.3 Connecting a Probe or Resistor ...............................................................................58 7 Making Measurements ....................................................................... 61 7.1 Introduction ..............................................................................................................61 7.2 Measuring a Temperature P
Before You Start Safety Information 1 Before You Start 1.1 Symbols Used Table 1 lists the symbols that may be used on the instrument or in this manual and the meaning of each symbol. Table 1 Symbols Symbol Description Symbol Description AC (Alternating Current) PE Ground AC-DC Hot Surface (Burn Hazard) Read the User’s Guide Battery (Important Information) Complies with European Union Off directives DC On Double Insulated Standby Indication Canadian Standards Electric Shock Association Fuse C
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1594A/1595A Super-Thermometer Authorized Service Centers ●● DO NOT connect an AC mains supply that does not match the voltage setting on the back of the unit. ●● DO NOT use this instrument in combination with any probe ( PRT or thermistor) to measure the temperature or resistance of any device where the probe might come in contact with a conductor that is electrically energized. Severe electric shock, personal injury, or death may occur. ●● DO NOT position this instrument in a manner where it
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Before You Start Authorized Service Centers Fluke South East Asia Pte Ltd. Fluke ASEAN Regional Office Service Center 60 Alexandra Terrace #03-16 The Comtech (Lobby D) 118502 SINGAPORE Phone: +65 6799-5588 Telefax: +65 6799-5588 E-mail: antng@singa.fluke.com When contacting these Service Centers for support, please have the following information available: ●● Model Number ●● Serial Number ●● Voltage ●● Complete description of the problem 3
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Introduction and Specifications Specifications 2 Introduction and Specifications 2.1 Introduction The Fluke family of Hart Super-Thermometers long ago established the standard for easy-to-use, precision temperature measurement instrumentation. Laboratories worldwide have selected the Super-Thermometer not only for the assurance of achieving high-quality results, but also for the innovative features that increase productivity in the lab. The Fluke 1594A and 1595A Hart Super-Thermometers contin
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1594A/1595A Super-Thermometer Specifications Primary Specifications: the core set of measurement accuracy specifications of the Super-Thermometer. They are guaranteed for performance verification at the 99% confidence level. Ancillary Specifications: additional specifications that help the user understand more of the uncertainties involved in measurement. Since they may be subject to the application and setting in which the Super-Ther- mometer is used, they are not guaranteed for performance v
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Introduction and Specifications Specifications Table 3 Resistor Stability Specifications Resistor (Rs) Accuracy (ppm of reading), 95 % confidence level 24 hours 30 days 1 W 5 ppm 10 ppm 10 W 0.5 ppm 2 ppm 25 W 0.25 ppm 1 ppm 100 W 0.2 ppm 1 ppm 10 kW 0.25 ppm 1 ppm 2.2.2.3 Absolute Resistance Accuracy Absolute resistance accuracy is the ability of the instrument to measure absolute resistance, Rx, using the internal reference resistors. The following specifications apply using the given refere
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1594A/1595A Super-Thermometer Specifications Table 5 Measurement Current Accuracy Specifications Current Range Accuracy 99% confidence level, 1-year 0.001 mA to 0.005 mA 0.00005 mA 0.005 mA to 0.02 mA 1 % 0.02 mA to 0.2 mA 0.5 % 0.2 mA to 2 mA 0.2 % 2 mA to 20 mA 0.5 % 2.2.3 Ancillary Specifications 2.2.3.1 Temperature Measurement Noise Temperature measurement noise indicates typical measurement noise in temperature measurements. The speci- fications below are given for averages taken over a per
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Introduction and Specifications Specifications 2.2.4 General Specifications Table 8 General Specifications Warm-up period 30 minutes Measurement range 0 W to 500 kW Measurement current range 0.001 mA to 20 mA Measurement current reversal interval: Sample period of 1 second or 2 seconds 0.2 second Sample period of 5 second or 10 seconds 1.2 second Standby current range 0.001 mA to 2 mA AC power 100 V to 230 V (± 10 %) 50 or 60 Hz Fuse Rating 2 A – T – 250 V Specified operating temperature 15 °C
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1594A/1595A Super-Thermometer Specifications When calibrating an SPRT on the ITS-90, the W value is measured at required fixed-point temperatures. T90 This is done by measuring the resistance of the SPRT at a fixed-point temperature followed immediately by measurement of the RTPW. This is repeated for each temperature point. Once again the ratio accuracy of the Super-Thermometer, applied to each measured resistance, determines the accuracy of the resulting W value. T90 2.2.5.3 Example 1: Me
