Order #: 1594A-156-RENT2
Mfg #: 1594A-156-RENT2
Fluke Calibration 1594A-156 for Rent, Super Thermometer, 0.8ppm
Order #: 1594A-156-RENT2
Mfg #: 1594A-156-RENT2
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Product Highlights
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
1594A / 1595A General Specifications |
|
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, 95% Confidence Level, 1-yr |
||
. | 1594A | 1595A |
Ratio: 0.95 to 1.05 | 0.24 ppm | 0.06 ppm |
Ratio: 0.5 to 0.95, 1.05 to 2.0 | 0.64 ppm | 0.16 ppm |
Ratio: 0.25 to 0.5, 2.0 to 4.0 | 0.8 ppm | 0.2 ppm |
Ratio: 0.0 to 0.25 | 0.2 ppm of 1.0 | 0.05 ppm of 1.0 |
Ratio: 4.0 to 10.0 | 2.0 ppm | 0.5 ppm |
1594A / 1595A Absolute Resistance Accuracy, 95% Confidence Level, 1-yr |
|
(RS, current) | |
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 |
1594A / 1595A Internal Resistor Stability |
||
. | 24 hours | 30 days |
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 |
1594A / 1595A Temperature Measurement Noise - Typical Performance (standard error of the mean, °C)2 |
|
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 |
1594A / 1595A Measurement Current Accuracy (self-heating) |
|
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 % |
1594A / 1595A Mechanical Specifications |
|
Weight | 7.5 kg (16.5 lbs) |
External Width x Height x Length | 432 mm x 153 mm x 432 mm (17 x 6 x 17 inches) |
1594A / 1595A Operating Specifications |
|
AC power requirements | 100V to 230V ±10%, 50/60Hz |
Specified operating temperature | 15°C to 30 °C |
Max operating temperature | 5°C to 40 °C |
Storage temperature | 0°C to 40 °C |
Operating relative humidity, 5°C to 30°C | 10% to 70% |
Operating relative humidity, 30°C to 40°C | 10% to 50% |
Storage relative humidity | 0% to 95%, non-condensing |
Operating altitude | 3000 m |
Warranty period | 1 Year |
Report of Calibration3 | NVLAP accredited |
1Two second sample rate required for full accuracy
2Due to the subjective nature of measurement noise, it is not a guaranteed specification
3The standard Report of Calibration includes resistance data from 1 Ω to 100 kΩ. A Report of Calibration may be ordered if resistance data from 100 kΩ to 500 kΩ is desired (see model numbers 1994 and 1995 in the ordering information table).
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