Fluke 1504 Thermometer Readout

Includes: Fluke 1504-256 Thermometer, Extra Probe Connector, Power Cord, Manual, Probe (optional—must be purchased separately), Battery Pack (optional - must be purchased separately).

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The Fluke 1504 Thermometer Readout is a low-cost high-accuracy digital thermometer readout designed to be used with thermistors or RTDs with a nominal resistance of 1,000Ω or greater. Its unique combination of features makes it suitable for a wide variety of applications from laboratory measurement to industrial processes.

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.

FEATURES

Measures with most any thermistor.
Four-wire connection eliminates lead resistance effects.
Accuracy: 0.003°C, typical.
Resolution: 0.0001°C.
Fast one-second measurement cycle.
Adjustable digital filter.
Accepts Steinhart-Hart characterisation coefficients.
Also accepts Callendar-Van Dusen coefficients.
Auto-ranging from 0Ω to 1 MΩ.
Excitation current adjusts automatically to minimise self-heating.
Displays temperature in Celsius, Fahrenheit, or Kelvin or displays resistance in ohms.
Password protection of critical parameters.
Large, bright eight-digit LED display.
Serial RS-232 interface standard; IEEE-488 GPIB interface optional.
Detachable power cord.
Optional 12 V DC power.
Light weight, small and portable.
Sturdy, reliable construction.

Fluke 1504 Specifications

Temperature Range†	Any thermistor range.
Resistance Range	0 Ω to 1 MΩ, auto-ranging.
Probe	Thermistors.
Characterisations	Steinhart-Hart thermistor polynomial Callendar-Van Dusen: R0, a, d, and b.
Resistance Accuracy (ppm of reading)	0 Ω to 5 KΩ: 0.5 Ω 5 KΩ to 200 KΩ: 100 ppm 200 KΩ to 1 MΩ: 300 ppm.
Temperature Accuracy†	±0.002 °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 characterisation errors.).
Operating Temperature Range	13 °C to 33 °C.
Resistance Resolution	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	0.0001 °C.
Excitation Current	2 and 10 mA, 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.
Probes from Hart	5640-44, 5610-65.
Calibration	ISO 17025-accredited calibration provided.
Dimensions (H x W x D)	61 x 143 x 181mm (2.4 x 5.6 x 7.1 in).
Weight	1.0 kg (2.2 lb.).
Fluke 1504 Warranty	1 year.
†Temperature ranges and accuracy may be limited by the sensor you use.