Fluke 1595A Super-Thermometer

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Product Code: 1595A
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Specifications: (See all)
0 Ω to 1.2 Ω (1 Ω, 10 mA)
Greater of 40 ppm or 0.000012 Ω
0.001 mA to 0.005 mA
0.00005 mA
1 Ω
5 ppm 10 ppm
25Ω SPRT at 0°C
0,00002
Dimensions
432 mm x 153 mm x 432 mm
Description

Thermometry bridge accuracy combined with time-saving features

The Fluke Calibration 1594A and 1595A Super-Thermometers combine the accuracy of complex and expensive bridges with innovative features that simplify measurement processes and provide excellent value. They are accurate enough for the primary lab and economical enough for the secondary lab. With temperature-controlled internal reference resistors, six input channels, a large graphical display, and a multitude of temperature-specific measurement functions, PRT, thermistor and SPRT calibration (0 Ω to 500 kΩ) has never been so easy and economical. And with the built-in Ratio Self-Calibration function, you can verify or calibrate the Super-Thermometer’s ratio accuracy in-house with the press of a button—no other single thermometry bridge can do so much, so well!

Super-Thermometer features at a glance 

  • Calibrate SPRTs, PRTs, RTDs and thermistors (0 Ω to 500 k Ω)
  • Accuracy as good as 0.06 ppm (0.000015 °C)
  • “Ratio Self-Calibration” verifies and calibrates resistance ratio accuracy
  • Automatic zero-power measurements calculate thermometer probe self-heating
  • Temperature-controlled internal reference resistors
  • Calibrated sensing current lowers overall instrument uncertainty
  • Four input channels on the front panel accept sensors under test or external references
  • Two dedicated external reference input channels on the rear panel
  • Standby current reduces transient effects when scanning between channels
  • Channel Select keys turn measurement mode on or off at the touch of a button
  • Sample rates as fast as one second
  • USB data transfer and computer control
  • Remote view and device control via Ethernet
  • Compatible with MET/TEMP II automated calibration software and LogWare II multichannel, real-time data acquisition software
Specifications
General characteristics of thermometers
Measurement capability
4-wire PRT, Thermistor, Resistance, Resistance Ratio
Input resistance range
0 to 500 kΩ
Ratio range
0 to 10
Accepted external RS range
1 Ω to 10 kΩ
Internal RS
1 Ω, 10 Ω, 25 Ω, 100 Ω, and 10 kΩ
PRT conversion types
ITS-90, PT-100, CVD-ABC, CVD-ALPHA, Polynomial
Thermistor conversion types
R(T) Polynomial, T(R) Polynomial
Display units
ratio (RX / RS), K, °C, °F, Ω
Display resolution
0.1 to 0.000001
Sample period
(seconds)1 1, 2, 5, and 10
Statistics
Average, Std Dev, SE of Mean, Max, Min, Difference, Peak-Peak, Delta, N
Front panel channels
Four PRT/Thermistor inputs (channels 2 & 4 can be configured for either RX or RS inputs)
Rear panel channels
Two dedicated reference resistor inputs (RS)
Input terminals
DWF Connector, Tellurium Copper
Data logging to internal memory
80,000 individual time- and date-stamped readings (~6 MB)
Internal real-time clock
Yes
Computer communications
RS-232, USB, IEEE-488, Ethernet
Display type
Full VGA, LCD
User interface languages
English, French, Spanish, German, Russian, Chinese, Japanese
Resistance Ratio Accuracy
Ratio: 0.95 to 1.05
0.06 ppm
Ratio: 0.5 to 0.95, 1.05 to 2.0
0.16 ppm
Ratio: 0.25 to 0.5, 2.0 to 4.0
0.2 ppm
Ratio: 0.0 to 0.25
0.05 ppm of 1.0
Ratio: 4.0 to 10.0
0.5 ppm
Absolute Resistance Accuracy
0 Ω to 1.2 Ω (1 Ω, 10 mA)
Greater of 40 ppm or 0.000012 Ω
0 Ω to 12 Ω (10 Ω, 3 mA)
Greater of 10 ppm or 0.000024 Ω
0 Ω to 120 Ω (25 Ω, 1 mA)
Greater of 5 ppm or 0.000024 Ω
0 Ω to 400 Ω (100 Ω, 1 mA)
Greater of 4 ppm or 0.00008 Ω
0 kΩ to 10 kΩ (10 kΩ, 10 µA)
Greater of 5 ppm or 0.000012 Ω
10 k to 40 kΩ (10 kΩ, 10 µA)
8 ppm
40 kΩ to 100 kΩ (10 kΩ, 2 µA)
20 ppm
100 kΩ to 500 kΩ (10 kΩ, 1 µA)
80 ppm3
General parameters
Dimensions
432 mm x 153 mm x 432 mm
Weight
7.5 kg
Power supply
100V to 230V ±10%, 50/60Hz
Internal Resistor Stability
1 Ω
5 ppm 10 ppm
10 Ω
0.5 ppm 2 ppm
25 Ω
0.25 ppm 1 ppm
100 Ω
0.2 ppm 1 ppm
10 kΩ
0.25 ppm 1 ppm
Temperature Measurement Noise
25Ω SPRT at 0°C
0,00002
25Ω SPRT at 420°C
0,00006
100Ω PRT at 0°C
0,00001
100Ω PRT at 420°C
0,00003
Thermistor at 25°C
0,000003
Measurement Current Accuracy
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 %
Environmental parameters
Working temperature
5°C to 40 °C
Storage temperature
0°C to 40 °C
Working humidity
10% to 70%
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Fluke 1595A Super-Thermometer
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