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The 1523/24 Reference Thermometers from Fluke Calibration measure, graph, and record PRTs, thermocouples, and thermistors. These thermometer readouts deliver exceptional accuracy, wide measurement range, temperature logging, and trending, all in a handheld tool you can take anywhere.
The 1523/24 lets you handle field applications, laboratory measurements, and data logging with ease. And with the dual channel measurement capabilities of the model 1524, you can do twice the work in half the time.
The 1523 Reference Thermometers are versatile single-channel thermometers that measure, graph and record three sensor types with one tool. Support for PRTs/RTDs, thermocouples, and thermistors provide flexibility to choose the right probe for the job.
1. RS-232 serial interface connector. For PC communications, uploading and downloading data from memory and from the probe INFO-CON connectors. 2. Sensor connector (PRT, thermocouple, or thermistor) 4. External power adapter connection, for continuous use without changing batteries. Alternatively, 3 AA batteries will last more than 20 hours in the field |
Specifications | |
Input channels | 1 |
Logging | 25 readings with statistics |
Sample interval (normal) | 1 second |
Sample interval (fast mode) | 0.3 seconds (see technical manual for details) |
Sensor types | PRTs, RTDs, Thermistors, and Thermocouples |
Thermocouple types | C,E,J,K,L,M,N,T,U,B,R,S |
Operating temperature | -10°C to 60°C (Best accuracy 13°C to 33°C) |
Power requirements | 3 AA alkaline batteries |
Size | 96 x 200 x 47 mm (3.75 x 7.9 x 1.86 in) |
Weight | 0.65 kg (1.4 lb) |
Environmental conditions for best accuracy | 13°C to 33°C |
Millivolt range and accuracy | –10 mV to 75 mV ±(0.005% + 5 μV) |
Resistance range and accuracy | 0 Ω to 400 Ω ±(0.004% + 0.002 Ω) 200 Ω to 50 kΩ ±(0.01% + 0.5 Ω) 50 kΩ to 500 kΩ ±(0.03%) |
Temperature coefficient, voltage (–10°C to 13°C , +33°C to 60°C) | ±(0.001%/°C + 1 μV/°C) |
Temperature coefficient, resistance (–10°C to 13°C , +33°C to 60°C) | 0.0008%/°C + 0.0004 Ω (0 Ω to 400 Ω) 0.002%/°C + 0.1 Ω (0 Ω to 50 kΩ) 0.06%/°C + 0.1 Ω (50 kΩ to 500 kΩ) |
Excitation current, resistance | 1 mA (0 Ω to 400 Ω) 10 μA (0 Ω to 50 kΩ) 2 µA (50 kΩ to 500 kΩ) |
Thermocouple Equivalent Temperature Accuracies (readout only) | |
Type B | ±0.85°C from 600°C to 800°C ±0.68°C from 800°C to 1000°C ±0.57°C from 1000°C to 1800°C |
Type C | ±0.32°C from 100ºC to 550°C ±0.71°C from 550°C to 2300°C |
Type E | ±0.52°C from -200°C to 0°C ±0.22°C from 0°C to 950°C |
Type J | ±0.52°C from -200°C to 0°C ±0.23°C from 0°C to 1200°C |
Type K | ±0.61°C from -200°C to 0°C ±0.24°C from 0°C to 1370°C |
Type L | ±0.36°C from -200°C to 0°C ±0.23°C from 0°C to 1370°C |
Type M | ±0.26°C from -20°C to 0°C ±0.25°C from 0°C to 400°C ±0.22°C from 400°C to 1400°C |
Type N | ±0.72°C from -200°C to 0°C ±0.28°C from 0°C to 1300°C |
Type R | ±1.09°C from -20°C to 0°C ±0.97°C from 0°C to 500°C ±0.49°C from 500°C to 1750°C |
Type S | ±1.05°C from -20°C to 0°C ±0.95°C from 0°C to 500°C ±0.56°C from 500°C to 1750°C |
Type T | ±0.60°C from -200°C to 0°C ±0.25°C from 0°C to 400°C |
Type U | ±0.54°C from -200°C to 0°C ±0.24°C from 0°C to 400°C |
Accuracies are based on internal Reference Junction Compensation. Refer to Technical manual for equivalent accuracies with an external reference junction. | |
Accuracies with Selected Probes (±°C) | |
-200°C | 5616-12: 0.014 5615-6: 0.025 5627A-12: 0.027 5610-9: n/a |
0°C | 5616-12: 0.021 5615-6: 0.021 5627A-12: 0.049 5610-9: 0.009 |
100°C | 5616-12: 0.027 5615-6: 0.028 5627A-12: 0.065 5610-9: 0.009 |
300°C | 5616-12: 0.040 5615-6: 0.043 5627A-12: 0.103 5610-9: n/a |
420°C | 5616-12: 0.050 5615-6: n/a 5627A-12: 0.130 5610-9: n/a |
Includes readout accuracy, probe calibration, and probe drift | |
PRT Equivalent Temperature Accuracy (readout only) | |
–100°C | ±0.011 |
0°C | ±0.015 |
100°C | ±0.019 |
200°C | ±0.023 |
400°C | ±0.031 |
600°C | ±0.039 |
Thermistor Equivalent Temperature Accuracy (readout only) | |
0°C | ±0.002 |
25°C | ±0.003 |
50°C | ±0.006 |
75°C | ±0.014 |
100°C | ±0.030 |