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Fluke 1502A Tweener 1-Channel Thermometer (RS-232/IEE-488)

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Fluke 1502A
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Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs

The Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs can be used to read PRTs (Platinum Resistance Thermometers), including 100Ω, 25Ω and 10Ω probes.

It has a temperature range of -200°C to 962°C with an accuracy that ranges from ±0.004°C to ±0.024°C depending on the temperature. The Fluke 1502A- 256 Tweener 1-Channel Thermometer also has a resolution of 0.001°C across its entire range.

In order to maintain the linearity and accuracy of this thermometer, it has been equipped with a front panel which allows the user to enter the constants and coefficients of the probe-under-investigation. Via this front panel the user is also able to choose between the measurement units °C, °F and K, or may select to view the resistance measurement in Ω.

The user is also able to calibrate the Fluke 1502A- 256 Tweener 1-Channel Thermometer using the buttons located on the instrument’s front panel. Additionally, the Fluke 1502A- 256 Tweener 1-Channel Thermometer is supplied with a calibration report.

In terms of its functionality, the Fluke 1502A-256 Tweener 1-Channel Thermometer determines the temperature of the PRT through converting the measured resistance into a temperature reading using its integrated algorithms.

This instrument is capable of reading IEC-751 and “385” ALPHA RTDs without requiring the user to program the thermometer. However, in order to improve accuracy, it is possible to enter the R0 and ALPHA information for the probe-under-investigation.

Further to this, the Fluke 1502A- 256 Tweener 1-Channel Thermometer includes integrated ITS-90 formulas and can accept PRTs with the subranges 4 and 6 to 11. In order to utilise these programmed ITS-90 formulas, the user needs only enter the relevant coefficients into the Fluke 1502A- 256 Tweener 1-Channel Thermometer via the front panel.

The Fluke 1502A- 256 Tweener 1-Channel Thermometer is available in two models, which vary only in regards to their interfaces. As standard the Fluke 1502A- 256 Tweener 1-Channel Thermometer comes with an RS-232 interface which facilitates the user’s ability to conduct automated temperature data collection, calibrations and process control functions. However; it is possible to order this model with an IEE-488 interface. For further information, please see the following table.

Product Code Product Name  Interface Type 
1502A-256 Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs - Standard RS-232 Interface RS-232
1502A-2506-256 Fluke 1502A-2506- 256 Tweener 1-Channel Thermometer for PRTs - IEE-488 Interface  IEE-488

It is also possible to use these models in conjunction with Fluke’s 9934 LogWare Software (NOT included) in order to perform real-time data acquisition, as well as analyse collected data graphically and/or statistically. Alternatively, the Fluke 1502A- 256 Tweener 1-Channel Thermometer can be used with Fluke’s MET / TEMP II Software (NOT included), allowing it to serve as a reference thermometer.

Finally, this compact instrument can be powered using Fluke’s 9320A Battery Pack (NOT included) in order to provide the user with up to 36 hours of functionality between charges. This expands the Fluke 1502A- 256 Tweener 1-Channel Thermometer’s scope-for-use, allowing it to remain operational in areas without a power supply.

The Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs is an easy-to-use, adaptable and accurate temperature calibration instrument.

Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs Key Features

  • Can be used to read platinum resistance thermometers (PRTs)
  • Can read 100Ω, 25Ω and 10Ω probes
  • Temperature range: -200°C to 962°C
  • Accuracy: ±0.004°C to ±0.024°C, depending on the temperature
  • Resolution: 0.001°C
  • Front panel allows the user to enter the coefficients and constants of the probe-under-investigation, thereby improving linearity and accuracy
  • Choose to view temperature measurements in °C, °F or K
  • Option to view resistance measurements in Ω
  • Calibrate the instrument via the front panel
  • Supplied with a calibration report
  • Integrated algorithms convert resistance measurements into temperature readings
  • Capable of reading  IEC-751 and “385” ALPHA RTDs probes without programming the thermometer
  • R0 and ALPHA information can be entered via the front panel
  • Includes ITS-90 formulas
  • Can accept PRTs with the subranges 4 and 6 to 11
  • Enter relevant coefficients via the front panel in order to access the programmed ITS-90 formulas
  • Available in two models
  • The standard model is equipped with an RS-232 interface
  • The RS-232 interface can be used to conduct automated data collection, calibrations and process control functions
  • An optional IEE-488 interface is available
  • Can be used with Fluke’s 9934 LogWare Software (NOT included)
  • Can be used with Fluke’s MET/ TEMP II Software (NOT included)
  • OPTIONAL Fluke 9320A Battery Pack can be used to provide the instrument with up to 36 hours of power between charges
  • Easy-to-use, adaptable and accurate temperature calibration instrument

What’s Included?

  • Your Choice of Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs

Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs Technical Specifications 

The Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs is part of Fluke's series of 150X Tweener 1-Channel Thermometers; please find the technical specifications for all the models included in this series. 

Specifications  1502A 1504
Temperature Range −200 °C to 962 °C (−328 °F to 1764 °F) Any thermistor range
Resistance Range 0 Ω to 400 Ω, auto-ranging 0 Ω to 1 MΩ, auto-ranging
Probe Nominal RTPW: 10 Ω to 100 Ω
RTD, PRT, or SPRT
Thermistors
Characterizations ITS-90 subranges 4, 6, 7, 8, 9, 10, and 11
IPTS-68: R0, a, d, a4, and c4
Callendar-Van Dusen: R0, a, d, and b
Steinhart-Hart thermistor polynomial
Callendar-Van Dusen: R0, a, d, and b
Resistance Accuracy
(ppm of reading)
0 Ω to 20 Ω: 0.0005 Ω
20 Ω to 400 Ω: 25 ppm
0 Ω to 5 KΩ: 0.5 Ω
5 KΩ to 200 KΩ: 100 ppm
200 KΩ to 1 MΩ: 300 ppm
Temperature Accuracy ±0.004 °C at −100 °C ±0.002 °C at 0 °C
±0.006 °C at 0 °C ±0.002 °C at 25 °C
±0.009 °C at 100 °C ±0.004 °C at 50 °C
±0.012 °C at 200 °C ±0.010 °C at 75 °C
±0.018 °C at 400 °C ±0.020 °C at 100 °C
±0.024 °C at 600 °C (Using 10 KΩ thermistor sensor, a=0.04. Does not include probe uncertainty or characterization errors.)
Operating Temperature Range 16 °C to 30 °C 13 °C to 33 °C
Resistance Resolution 0 Ω to 20 Ω: 0.0001 Ω
20 Ω to 400 Ω: 0.001 Ω
0 Ω to 10 KΩ: 0.01 Ω
10 KΩ to 100 KΩ: 0.1 Ω
100 KΩ to 1 MΩ: 1 Ω
Temperature Resolution 0.001 °C 0.0001 °C
Excitation Current 0.5 and 1 mA, user selectable, 2 Hz 2 and 10 µA, automatically selected
Measurement Period 1 second
Digital Filter Exponential, 0 to 60 seconds time constant (user selectable)
Probe Connection 4-wire with shield, 5-pin DIN connector
Communications RS-232 serial standard
IEEE-488 (GPIB) optional
Display 8-digit, 7-segment, yellow-green LED; 0.5-inch-high characters
Power 115 VAC (±10 %), 50/60 Hz, 1 A, nominal
230 VAC (±10 %), 50/60 Hz, 1 A, nominal, specify
Size (HxWxD) 61 x 143 x 181mm (2.4 x 5.6 x 7.1 in)
Weight 1.0 kg (2.2 lb.)
Probes from Fluke Calibration 5615, 5627, 5626, 5628, 5622 5640-44, 5610-65
Calibration ISO 17025-accredited calibration provided
Temperature ranges and accuracy may be limited by the sensor you use.
PRT temperature vs Resistance Table Manuals & Guides Fluke 1502A- 256 Tweener 1-Channel Thermometer for PRTs - User Guide Manuals & Guides Fluke's Guide to Temperature Readouts and Probes Manuals & Guides

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Additional Information
SKU Fluke 1502A
Manufacturer Part Code 1648930

Made to Order item: This item is made-to-order with a lead time once the order is placed. Once an order is placed it cannot be cancelled or returned unless the unit is found to be faulty.