Fluke Calibration 1523H Reference Thermometer
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Fluke Calibration 1523H is a single-channel reference thermometer for PRTs, thermocouples, and thermistors with ±0.002°C accuracy and graphical data trending.
Product details
| Model | 1523H |
| Manufacturer | Fluke Calibration |
| Category | Digital Thermometers |
| Availability | Made to order |
Description
Overview
The Fluke Calibration 1523H is a single-channel reference thermometer that measures PRTs, thermocouples, and thermistors with one handheld tool. Using current reversal—a precision measurement technique that eliminates thermal EMFs—it delivers exceptional accuracy guaranteed from -10°C to 60°C ambient. The instrument combines precision resistors and a stable reference voltage source to maintain accuracy across varying environmental temperatures.
Key Features
- Measures three sensor types: PRTs/RTDs, thermocouples, and thermistors
- Current reversal technique eliminates thermal EMF errors
- Accuracy to ±0.002°C with thermistors, ±0.015°C with PRTs
- Wide measurement range: -200°C to 2315°C
- 128x64 backlit LCD graphic display with real-time trend visualization
- Memory for 25 readings with automatic statistics (average, standard deviation, max, min)
- Supports thermocouple types J, K, T, E, R, S, B, L, U, C, M, and N
- RS-232 interface for PC data transfer with included software
- Battery powered (3 AA batteries, 20+ hour runtime) or DC adapter option
- Optional magnetic hanger for hands-free operation
Applications
- Temperature calibration and loop checking
- Plant startup and field troubleshooting
- Maintenance and repair of temperature-critical systems
- Verification in calibration baths, dry-block calibrators, and thermowells
- Monitoring in engines, heat exchangers, furnaces, and freezers
Included Accessories
- NIST traceable certificate of calibration
- User's guide and technical manual (CD-ROM)
- RS-232 serial cable
- Software for computer interface
- DC power supply
Specifications
| Accuracy (Thermistor) | ±0.002°C |
| Accuracy (PRT) | ±0.015°C |
| Temperature Range | -200°C to 2315°C |
| Measurement Capability | 4-wire RTD, Thermistor, Thermocouple, Resistance, Voltage |
| Display | 128x64 backlit LCD graphic |
| Memory | 25 readings with statistics |
| Thermocouple Types | J, K, T, E, R, S, B, L, U, C, M, N |
| RTD Resistance Accuracy | 0.004% + 0.002 Ω |
| Thermistor Resistance Accuracy | 0.01% + 0.5 Ω |
| Thermocouple Voltage Accuracy | 0.005% of reading + 5µV |
| TC Reference Compensation Accuracy | 0.35°C |
| Operating Temperature | 13°C to 33°C |
| Storage Temperature | -20°C to 70°C |
| Power | 3 AA batteries or DC universal supply |
| Battery Life | 20 hours minimum |
| Dimensions | 96 x 200 x 47 mm |
| Weight | 0.65 kg |
| Computer Interface | RS-232 SCPI protocol |
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Fluke Calibration 1523H Reference Thermometer
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