1502A / 1504 Tweener Thermometer Readouts
Best performance PRT and Thermistor thermometers in their price range
One of Fluke Calibration's best-selling products is the Tweener thermometer, and there’s a reason. No other company, not one, has a reference thermometer that comes close to the performance and features of the Tweener for anywhere near its price.
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.
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 Tweener features a PRT readout, but if you need more accuracy in a limited temperature range, the 1504 Tweener gives it to you as a thermistor readout.
• Two Tweeners to choose from—reading PRTs (1502A) or Thermistors (1504)
• Comes complete with an RS-232 interface
• Optional IEEE-488 interface
• Both Tweener models may be used for real-time data acquisition using the 9934 LogWare
• Best performance thermometers in their price range
1502A | 1504 | |
Temperature Range† | −200°C - 962°C (−328°F - 1764°F) | Any thermistor range |
Resistance Range | 0 Ω - 400 Ω, auto-ranging | 0 Ω - 1 MΩ, auto-ranging |
Probe | Nominal RTPW: 10 Ω - 100 Ω | Thermistors |
Characterizations | ITS-90 subranges 4, 6, 7, 8, 9, 10, and 11 | Steinhart-Hart thermistor polynomial |
Resistance Accuracy | 0 Ω - 20 Ω: 0.0005 Ω | 0 Ω - 5 KΩ: 0.5 Ω |
Temperature Accuracy† | +/- 0.004°C at −100°C | +/- 0.002°C at 0°C |
Operating Temperature Range | 16°C - 30°C | 13°C - 33°C |
Resistance Resolution | 0 Ω - 20 Ω: 0.0001 Ω | 0 Ω - 10 KΩ: 0.01 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 s | |
Digital Filter | Exponential, 0 to 60 s time constant (user selectable) | |
Probe Connection | 4-wire with shield, 5-pin DIN connector | |
Communications | RS-232 serial standard | |
Display | 8-digit, 7-segment, yellow-green LED; 0.5-inch-high characters | |
Power | 115 VAC (+/- 10 %), 50/60 Hz, 1 A, nominal | |
Size (H x W x D) | 61 mm x 143 mm x 181 mm (2.4 in x 5.6 in 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.
| Fluke Calibration 1502A / 1504 Tweener Thermometer Readouts - Data Sheet 92 KB |
| Fluke Calibration 1502A / 1504 Tweener Thermometer Readouts - 1502A Manual 303.8 KB |
| Fluke Calibration 1502A / 1504 Tweener Thermometer Readouts - 1504 Manual 370.2 KB |
