Fluke Calibration 1502A/1504 Thermometer Readout

Model#:Fluke 1502APart#:1648927UPC#:0 95969 12019 7
Fluke Calibration 1502A Thermometer Readout is rated 4.0 out of 5 by 1.
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  • Fluke Calibration 1502A/1504 Thermometer Readouts

Key features

  • 1502A: accuracy up to ±0.006 °C.
  • 1504: accuracy up to ±0.002 °C plus ability to measure thermistor temperature sensors.
  • 1502A: covers –200°C to 962°C
  • 1504: covers 0 to 100°C
  • Can take readings up to twice per second, making the calibration process faster.

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Product overview: Fluke Calibration 1502A/1504 Thermometer Readout

1502A Tweener PRT Readout

The Fluke Calibration 1502A Tweener features accuracy up to ±0.006 °C. In addition, it reads 100-ohm, 25-ohm, and 10-ohm probes, has a resolution of 0.001 °C across its entire range, and is the smallest unit in its class. It also has an optional battery pack for completely portable operation.

Each Tweener is programmable to match a probe's constants for maximum linearity and accuracy. All probe constants and coefficients are programmed through simple, front-panel keystrokes. Temperature is displayed in °C, °F, K, or resistance in ohms.

The 1502A accurately measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.

For convenience, the 1502A reads the common industrial grade IEC-751 or "385 ALPHA RTD without any programming. Enter the actual R0 and ALPHA of the individual probe for increased accuracy. For maximum accuracy, use the ITS-90 formulas. The Tweener accepts the subranges 4 and 6 through 11.

ITS-90 formulas reside in the Tweener's firmware. If your probe has been calibrated for any of the above subranges of the ITS-90, you simply enter the coefficients directly into your Tweener.

Each thermometer comes complete with an RS-232 interface for automation of temperature data collection, calibrations, or process control functions. An IEEE-488 interface is available as an option.

The 1502A is calibrated digitally using the front-panel buttons. You never have to open the box to calibrate it. This calibration protocol further reduces the cost of the 1502A. It goes where you go and works the way you want it to.

1504 Tweener Thermistor Readout

If you need more accuracy in a limited temperature range, the Model 1504 Tweener gives it to you as a thermistor readout. Thermistors are less fragile than PRTs and less likely to be impacted by mechanical shock. Thermistors are more sensitive to temperature, have faster response times, and come in many shapes for different applications.

Typical accuracy of a 1504 is ±0.002 °C with a resolution of 0.0001 °C.

Software

With our 9934 LogWare, both Tweener models may be used for real-time data acquisition. Collect data and analyze it graphically or statistically. Additionally, Tweeners may be used as reference thermometers with our MET/TEMP II software.

Battery pack

Want to take your Tweener on the road? Order Fluke Calibration's 9320A Battery Pack. Our battery gives you 36 hours between charges, allowing you to take your work wherever you need.

Calibration choices

Each Tweener and its accompanying probe (sold separately) have their own individual calibration reports. Overall system error can be calculated from the individual errors, rendering the added cost of system data unnecessary. However, for those requiring it, system data is available at two or more temperatures of your choice. (See Calibration Model 1929-X )

 

Specifications: Fluke Calibration 1502A/1504 Thermometer Readout

Specifications1502A1504
Temperature Range−200 °C to 962 °C (−328 °F to 1764 °F)Any thermistor range
Resistance Range0 Ω to 400 Ω, auto-ranging0 Ω to 1 MΩ, auto-ranging
ProbeNominal RTPW: 10 Ω to 100 Ω
RTD, PRT, or SPRT
Thermistors
CharacterizationsITS-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
±0.006 °C at 0 °C
±0.009 °C at 100 °C
±0.012 °C at 200 °C
±0.018 °C at 400 °C
±0.024 °C at 600 °C
±0.002 °C at 0 °C
±0.002 °C at 25 °C
±0.004 °C at 50 °C
±0.010 °C at 75 °C
±0.020 °C at 100 °C
(Using 10 KΩ thermistor sensor, a=0.04. Does not include probe uncertainty or characterization errors.)
Operating Temperature Range16 °C to 30 °C13 °C to 33 °C
Resistance Resolution0 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 Resolution0.001 °C0.0001 °C
Excitation Current0.5 and 1 mA, user selectable, 2 Hz2 and 10 µA, automatically selected
Measurement Period1 second
Digital FilterExponential, 0 to 60 seconds time constant (user selectable)
Probe Connection4-wire with shield, 5-pin DIN connector
CommunicationsRS-232 serial standard
IEEE-488 (GPIB) optional
Display8-digit, 7-segment, yellow-green LED; 0.5-inch-high characters
Power115 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)
Weight1.0 kg (2.2 lb.)
Probes from Fluke Calibration5615, 5627, 5626, 5628, 56225640-44, 5610-65
CalibrationISO 17025-accredited calibration provided
Temperature ranges and accuracy may be limited by the sensor you use.

Models: Fluke Calibration 1502A/1504 Thermometer Readout

Fluke 1502A
Fluke Calibration 1502A-156 Thermometer Readout
−200°C to 962°C (−328°F to 1764°F)
Part#: 1648927
UPC#: 0 95969 12019 7
1502A-2506
Tweener PRT Readout, with IEEE-488

Fluke 1504
Fluke Calibration 1504 Thermometer Readouts
Any thermistor range
Part#: 1648966
UPC#: 0 95969 12023 4
1504-2506
Tweener Thermistor Readout, with IEEE-488

9934-S
LogWare, Single Channel, Single User
Part#: 1658744
9934-M
LogWare, Single Channel, Multi User
Part#: 1658732
1929-2

System Verification, PRT with Readout, Accredited.

Part#: 3797087

Choose two temperature points, extra points at additional cost. Available temperature points are –197 °C, -80 °C , –39 °C, 0.01°C, 30 °C, 157 °C, 232 °C, 300 °C, 420 °C, 500 °C, 660 °C.

1929-5

System Verification, Thermistor with Readout, Accredited.

Part#: 3797093

Choose two temperature points; extra points at additional cost. Available temperature points are -30 °C, -20 °C, -10 °C, 0 °C, 10 °C, 20 °C, 30 °C, 40 °C, 50 °C, 60 °C, 70 °C, 80 °C, 90 °C, 100 °C.

1930

System Calibration, PRT with Readout, Accredited


Choose PRT temperature range for the calibration. Available temperature ranges are –200 °C to 500 °C, –200 °C to 420 °C, –80 °C to 420 °C, –40 °C to 420 °C, –40 °C to 232 °C, 0 °C to 420 °C.

1935

System Calibration, Thermistor with Readout, NVLAP-accredited


Choose thermistor temperature range for the calibration. Available temperature ranges are 100 °C span (6 points over span), 60 °C span (7 points over span), 100 °C span (11 points over span).

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Rated 4 out of 5 by from Lots of years of service so far Purchased over twenty-two years ago. Never a problem with the readout, but did have to buy one new probe so far. Just a minor detraction from 5-stars: Since this instrument is so old, the original software that came with it no longer works in current Windows environment and lots of button pushing is required to set up simple data logging.
Date published: 2022-10-11
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