Fluke 1504 - reference thermometer

Specifications

1502A 

1504 

Temperature Range^† 

–200 °C to 962 °C (–328 °F to 1764 °F) 

Any thermistor range 

Resistance Range 

Probe 

Nominal R_TPW: 10W to 100W
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) 

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 KW 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 

Temperature Resolution 

0.001 °C 

0.0001 °C 

Excitation Current 

0.5 and 1 mA, user selectable, 2 Hz 

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 

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 Hart

5615, 5627, 5626, 5628, 5622

5640-44, 5610-65

Calibration 

Accredited NIST-traceable calibration provided