The Fluke Calibration 1524 is a high-precision handheld reference thermometer with two independent measurement channels and integrated data logging capabilities. Designed for demanding temperature measurement applications, the Fluke Calibration 1524 combines excellent accuracy, versatile sensor compatibility and advanced temperature monitoring functions in one compact instrument.
Developed by Fluke Calibration, the 1524 supports platinum resistance thermometers (PRTs), resistance temperature detectors (RTDs), precision thermistors and thermocouples.
With readout accuracy down to ±0.002 °C when measuring precision thermistors, the Fluke Calibration 1524 provides outstanding performance for laboratory temperature measurements, industrial calibration and temperature metrology.
The instrument supports temperature measurements from −200 °C to +1000 °C with PRTs, −200 °C to +2315 °C with thermocouples, and −50 °C to +150 °C with precision thermistors.
One of the most important advantages of the Fluke Calibration 1524 is its ability to measure two temperature sensors simultaneously.
This allows technicians to perform direct temperature comparisons, monitor temperature differences and evaluate temperature stability using a single instrument.
The integrated data logger stores up to 15,000 measurements with date and time stamps, making the Fluke Calibration 1524 particularly suitable for long-term temperature monitoring and automated measurement documentation.
A graphical display, intelligent sensor connectors and fast measurement rates simplify operation and improve calibration efficiency.
At europascal, the Fluke Calibration 1524 provides a professional solution for reference temperature measurements and temperature calibration applications.
europascal supports customers with reference thermometers, temperature calibration equipment and professional calibration services.
For reliable measurement results and metrological traceability, visit the europascal Calibration Service.
Your Benefits at a Glance
- High-precision handheld reference thermometer
- Two independent temperature measurement channels
- Simultaneous measurement of two temperature sensors
- Readout accuracy down to ±0.002 °C with precision thermistors
- Compatible with platinum resistance thermometers
- Compatible with industrial RTDs
- Compatible with precision thermistors
- Compatible with thermocouples
- PRT measurement range from −200 °C to +1000 °C
- Thermocouple measurement range from −200 °C to +2315 °C
- Thermistor measurement range from −50 °C to +150 °C
- Integrated data logger
- Storage of up to 15,000 measurements
- Automatic date and time stamps
- Additional storage of 25 readings with statistics
- Fast measurement rates down to 0.3 seconds
- Illuminated graphical LCD
- Real-time temperature trend display
- Simultaneous display of both measurement channels
- Intelligent sensor connectors
- Automatic recognition of stored probe coefficients
- Resistance measurement up to 500 kΩ
- Millivolt measurement for thermocouples
- RS-232 communication interface
- Compatible with Fluke LogWare II software
- Battery-powered operation
- Compact and rugged construction
- Suitable for laboratory and field calibration
- Professional calibration support from europascal
Two Independent Temperature Measurement Channels
The Fluke Calibration 1524 features two independent temperature measurement channels.
This allows two temperature sensors to be connected and measured simultaneously.
Both channels support compatible PRTs, RTDs, thermistors and thermocouples.
The ability to measure two sensors simultaneously provides several advantages.
For example, one channel can be connected to a calibrated reference thermometer while the second channel measures a temperature sensor under test.
This allows direct comparison of both temperature indications.
The two-channel design is particularly useful for temperature comparison calibration and stability measurements.
It also reduces the need for separate thermometer readouts.
High-Precision Temperature Measurement
The Fluke Calibration 1524 is designed for applications requiring accurate and repeatable temperature measurements.
The manufacturer specifies the following best-case readout accuracies:
Precision thermistors: ±0.002 °C
Platinum resistance thermometers: ±0.011 °C
Thermocouples: ±0.24 °C for selected thermocouple types and temperature ranges
These values describe the accuracy of the thermometer readout under specified conditions.
The overall measurement uncertainty of a complete temperature measurement system also depends on the connected sensor, its calibration, stability and measurement conditions.
This distinction is particularly important in professional temperature metrology.
Wide Temperature Measurement Range
The Fluke Calibration 1524 supports several temperature sensor technologies.
Platinum Resistance Thermometers
−200 °C to +1000 °C
PRTs provide excellent stability and reproducibility.
They are widely used as reference temperature sensors in calibration laboratories.
Thermocouples
−200 °C to +2315 °C
Thermocouples are suitable for industrial applications requiring high-temperature measurements.
Precision Thermistors
−50 °C to +150 °C
Precision thermistors provide excellent sensitivity and accuracy over relatively limited temperature ranges.
The actual usable temperature range depends on the connected sensor and its calibration.
Platinum Resistance Thermometer Measurement
The Fluke Calibration 1524 supports platinum resistance thermometers, commonly referred to as PRTs.
PRTs are widely used in temperature calibration laboratories because of their excellent stability and reproducibility.
The instrument measures the electrical resistance of the connected PRT and converts it into temperature according to the selected sensor characteristic.
The Fluke Calibration 1524 supports calibrated PRT characteristics and sensor-specific coefficients.
This allows the thermometer readout to be used with high-accuracy reference temperature probes.
Typical applications include:
- Reference temperature measurements
- Calibration bath monitoring
- Temperature comparison calibration
- Industrial temperature verification
- Laboratory temperature metrology
RTD Temperature Measurement
The Fluke Calibration 1524 also supports industrial resistance temperature detectors.
These include common Pt100 sensors and other supported RTD characteristics.
RTDs are widely used in industrial processes because of their accuracy, stability and relatively simple construction.
The Fluke Calibration 1524 measures the sensor resistance and converts it into a temperature indication.
For accurate results, the correct sensor characteristic and measurement configuration must be selected.
The instrument supports high-accuracy resistance measurements suitable for professional temperature measurement applications.
Precision Thermistor Measurement
One of the most important features of the Fluke Calibration 1524 is its compatibility with precision thermistors.
Thermistors are temperature-dependent resistors that provide excellent sensitivity over limited temperature ranges.
The manufacturer specifies a best-case readout accuracy of:
±0.002 °C
This value applies at 0 °C under the specified measurement conditions.
The accuracy depends on the measured temperature.
Precision thermistors are particularly suitable for reference temperature measurements near room temperature.
The Fluke Calibration 1524 can therefore be used with calibrated thermistors for demanding temperature comparison measurements.
Thermocouple Measurement
The Fluke Calibration 1524 supports twelve thermocouple types.
Supported thermocouple types include:
- Type B
- Type C
- Type E
- Type J
- Type K
- Type L
- Type M
- Type N
- Type R
- Type S
- Type T
- Type U
Thermocouples generate a thermoelectric voltage depending on the temperature difference between the measuring junction and the reference junction.
The Fluke Calibration 1524 measures this voltage and converts it into temperature according to the selected thermocouple characteristic.
The instrument includes internal reference junction compensation.
This simplifies thermocouple measurements in industrial environments.
Integrated Data Logger with 15,000 Measurements
The Fluke Calibration 1524 features an integrated data logger.
The instrument can store up to:
15,000 measurements
Each recorded measurement is associated with a date and time stamp.
This makes the Fluke Calibration 1524 particularly suitable for long-term temperature monitoring.
The logging interval can be configured according to the application.
Measurements can be recorded at intervals as short as approximately 0.3 seconds or at longer intervals for extended monitoring.
The recorded data can be transferred to a computer for further analysis and documentation.
Typical applications include:
- Temperature stability measurements
- Calibration bath monitoring
- Temperature drift analysis
- Industrial temperature monitoring
- Laboratory measurement documentation
- Long-term temperature measurements
Real-Time Clock and Time-Stamped Measurements
The Fluke Calibration 1524 includes an integrated real-time clock.
This allows measurement data to be stored with date and time information.
Time-stamped measurements are particularly useful when evaluating temperature changes over extended periods.
The recorded information can be used to analyze temperature stability, identify measurement trends and document calibration conditions.
This makes the Fluke Calibration 1524 suitable for professional temperature monitoring applications.
Simultaneous Temperature Comparison
The two-channel design makes the Fluke Calibration 1524 particularly useful for temperature comparison measurements.
A calibrated reference thermometer can be connected to the first channel.
The temperature sensor under test can be connected to the second channel.
Both sensors can then be placed in the same temperature source.
The difference between the two temperature indications can be calculated as:
ΔT = T_DUT − T_REF
Where:
- ΔT = Temperature indication difference
- T_DUT = Temperature indicated by the device under test
- T_REF = Reference temperature
This method is commonly used for temperature comparison calibration.
The overall measurement uncertainty must consider the reference thermometer, temperature source, immersion conditions and other relevant contributions.
Temperature Stability Measurements
Temperature stability is an important characteristic of calibration baths, dry-block calibrators and temperature-controlled environments.
The Fluke Calibration 1524 provides high-resolution measurements and integrated data logging.
This allows small temperature variations to be monitored over time.
For example, a calibrated reference thermometer can be placed in a liquid calibration bath.
The Fluke Calibration 1524 records the temperature continuously.
The recorded data can then be evaluated to determine temperature fluctuations during the measurement period.
The integrated statistical functions further support the evaluation of measurement results.
Graphical Temperature Display
The Fluke Calibration 1524 features a graphical LCD.
The manufacturer specifies a display resolution of:
128 × 64 pixels
The illuminated display provides clear temperature indications and graphical measurement information.
Both measurement channels can be displayed simultaneously.
The instrument can also show temperature trends in real time.
This allows users to observe temperature changes without requiring an external computer.
Real-Time Temperature Trend Monitoring
The Fluke Calibration 1524 allows temperature measurements to be displayed graphically.
The instrument can show changes in temperature over time.
Users can adjust the graphical scale to evaluate temperature trends.
This function is particularly useful for:
- Temperature stability measurements
- Calibration bath monitoring
- Temperature drift evaluation
- Laboratory measurements
- Industrial temperature monitoring
The graphical display simplifies the identification of temperature fluctuations.
Measurement Storage and Statistics
In addition to automatic data logging, the Fluke Calibration 1524 includes manual measurement storage.
The instrument can store:
25 individual measurement readings
These measurements can be evaluated using integrated statistical functions.
Available statistical values include:
- Minimum
- Maximum
- Average
- Standard deviation
These functions are useful when evaluating temperature stability and repeatability.
Intelligent Sensor Connectors
The Fluke Calibration 1524 supports intelligent sensor connectors.
These connectors can store information about the connected temperature probe.
The stored information may include sensor identification and calibration coefficients.
When a compatible probe is connected, the thermometer readout automatically retrieves the stored information.
This reduces the need for manual configuration.
It also helps prevent errors caused by incorrect sensor coefficients.
The intelligent connector system is particularly useful in laboratories where several reference temperature probes are used.
Fast Temperature Measurements
The Fluke Calibration 1524 provides fast measurement rates.
In normal operating mode, the instrument performs approximately:
One measurement per second
A fast measurement mode is available for applications requiring shorter sampling intervals.
Typical fast-mode sampling intervals are:
PRTs: 0.45 seconds
Thermocouples: 0.3 seconds
Thermistors: 0.3 seconds
These measurement rates allow users to monitor temperature changes efficiently.
The instrument supports simultaneous measurement of both channels in normal operating mode.
Precision Resistance Measurement
The Fluke Calibration 1524 provides accurate resistance measurement for PRTs, RTDs and thermistors.
The manufacturer specifies several resistance measurement ranges.
Low Resistance Range
0 Ω to 400 Ω
Accuracy:
±(0.004% of reading + 0.002 Ω)
Medium Resistance Range
200 Ω to 50 kΩ
Accuracy:
±(0.01% of reading + 0.5 Ω)
High Resistance Range
50 kΩ to 500 kΩ
Accuracy:
±0.03% of reading
The appropriate measurement range depends on the connected sensor.
The resistance measurement accuracy directly influences the calculated temperature measurement result.
Millivolt Measurement
The Fluke Calibration 1524 provides millivolt measurement for thermocouple applications.
The manufacturer specifies a measurement range from:
−10 mV to +75 mV
The specified accuracy is:
±(0.005% of reading + 5 µV)
This allows the instrument to measure thermoelectric voltages generated by supported thermocouple types.
The temperature indication is calculated according to the selected thermocouple characteristic.
Reference Temperature Measurements
The Fluke Calibration 1524 is suitable for use as a reference thermometer readout.
When combined with calibrated temperature probes, it provides a reliable reference temperature measurement system.
The two measurement channels allow simultaneous measurements with different sensors.
This is particularly useful for temperature comparison calibration and monitoring of calibration equipment.
The instrument can be used with temperature calibration baths, dry-block calibrators and other stable temperature sources.
Temperature Calibration Baths
The Fluke Calibration 1524 is particularly useful for reference measurements in liquid calibration baths.
A calibrated temperature probe can be connected to the first channel.
A second temperature sensor can be connected to the second channel.
Both sensors are immersed in the calibration bath.
The thermometer readout measures both temperatures simultaneously.
This allows direct comparison of the reference thermometer and the sensor under test.
The integrated data logger can also record temperature changes during the calibration procedure.
Dry-Block Temperature Calibration
The Fluke Calibration 1524 can also be used with dry-block temperature calibrators.
A calibrated reference temperature probe is inserted into a suitable calibration insert.
The thermometer readout measures the actual reference temperature.
A second sensor can be measured simultaneously.
This allows the instrument to be used for temperature comparison calibration.
The Fluke Calibration 1524 measures temperature but does not generate a physical temperature.
RS-232 Communication
The Fluke Calibration 1524 includes an RS-232 communication interface.
The interface allows measurement data to be transferred to a computer.
This enables automated data acquisition and measurement documentation.
The instrument can also be integrated into compatible computer-controlled measurement systems.
Fluke LogWare II Software
The Fluke Calibration 1524 is compatible with optional Fluke LogWare II software.
LogWare II supports computer-based temperature monitoring and data acquisition.
The software can be used to record temperature measurements over time.
Typical applications include:
- Temperature data logging
- Temperature stability analysis
- Calibration bath monitoring
- Measurement documentation
- Temperature trend evaluation
This extends the functionality of the thermometer readout beyond its internal measurement memory.
Portable Battery-Powered Operation
The Fluke Calibration 1524 is designed for portable temperature measurements.
The instrument is powered by:
Three AA alkaline batteries
Battery operation makes the thermometer suitable for use in locations where mains power is unavailable.
The instrument can also be powered using a compatible external power supply.
Its compact construction and illuminated display make it convenient for field applications.
Compact Dimensions
The manufacturer specifies the following dimensions:
96 × 200 × 47 mm
The weight is approximately:
0.65 kg
This makes the Fluke Calibration 1524 easy to transport between different measurement locations.
The compact design is suitable for laboratory benches and mobile calibration setups.
Technical Highlights
| Feature | Fluke Calibration 1524 |
|---|---|
| Product type | Handheld Reference Thermometer with Data Logger |
| Manufacturer | Fluke Calibration |
| Measurement channels | 2 |
| Supported sensors | PRT, RTD, Thermistor, Thermocouple |
| PRT temperature range | −200 °C to +1000 °C |
| Thermocouple temperature range | −200 °C to +2315 °C |
| Thermistor temperature range | −50 °C to +150 °C |
| Best PRT readout accuracy | ±0.011 °C |
| Best thermistor readout accuracy | ±0.002 °C |
| Thermocouple readout accuracy | From ±0.24 °C, depending on type and range |
| Supported thermocouple types | 12 |
| Resistance measurement | Up to 500 kΩ |
| Millivolt measurement | −10 mV to +75 mV |
| Normal sampling interval | 1 second |
| Fast sampling, PRT | 0.45 seconds |
| Fast sampling, thermocouple | 0.3 seconds |
| Fast sampling, thermistor | 0.3 seconds |
| Display | Graphical LCD |
| Display resolution | 128 × 64 pixels |
| Backlight | Yes |
| Automatic data logging | Yes |
| Data logging memory | 15,000 measurements |
| Date and time stamps | Yes |
| Manual measurement memory | 25 readings |
| Statistical evaluation | Yes |
| Intelligent sensor connectors | Supported |
| Communication | RS-232 |
| Compatible software | Fluke LogWare II |
| Operating temperature | −10 °C to +60 °C |
| Ambient temperature for best accuracy | +13 °C to +33 °C |
| Power supply | 3 AA alkaline batteries or external power supply |
| Dimensions | 96 × 200 × 47 mm |
| Weight | 0.65 kg |
Fluke Calibration 1523 vs. Fluke Calibration 1524
The Fluke Calibration 1523 and 1524 belong to the same reference thermometer series.
Both instruments support PRTs, RTDs, thermistors and thermocouples.
The main differences are the number of measurement channels and data logging capabilities.
| Feature | Fluke 1523 | Fluke 1524 |
|---|---|---|
| Measurement channels | 1 | 2 |
| PRT measurement | Yes | Yes |
| Thermocouple measurement | Yes | Yes |
| Thermistor measurement | Yes | Yes |
| Graphical display | Yes | Yes |
| Manual measurement memory | 25 readings | 25 readings |
| Automatic data logging | No | Yes |
| Data logging capacity | — | 15,000 measurements |
| Date and time stamps | No | Yes |
| Simultaneous measurement of two sensors | No | Yes |
The Fluke Calibration 1523 is suitable for applications requiring a single reference thermometer channel.
The Fluke Calibration 1524 is particularly useful when two temperature sensors must be measured simultaneously or when extensive measurement data logging is required.
Compatible Temperature Probes
The Fluke Calibration 1524 can be combined with different compatible temperature probes.
Examples include:
- Fluke 5616 PRT
- Fluke 5615 PRT
- Fluke 5627A PRT
- Fluke 5628 PRT
- Fluke 5610 thermistor
- Compatible thermocouple probes
The appropriate probe should be selected according to the required temperature range, accuracy and measurement application.
For the highest measurement accuracy, a calibrated probe with suitable sensor coefficients should be used.
Available Configurations
The Fluke Calibration 1524 is available as a standalone thermometer readout and in different probe configurations.
Examples include:
Fluke Calibration 1524
Two-channel handheld reference thermometer with integrated data logger.
Fluke Calibration 1524-P1
Reference thermometer package with Fluke 5616 PRT.
Fluke Calibration 1524-P2
Reference thermometer package with Fluke 5628 PRT.
Fluke Calibration 1524-P3
Reference thermometer package with Fluke 5627A PRT.
Fluke Calibration 1524-P4
Reference thermometer package with Fluke 5615 PRT.
The exact delivery configuration depends on the selected model and ordering options.
Typical Applications
The Fluke Calibration 1524 is suitable for:
- Reference temperature measurements
- Temperature calibration laboratories
- PRT temperature measurement
- Pt100 temperature measurement
- RTD temperature measurement
- Precision thermistor measurement
- Thermocouple measurement
- Temperature comparison calibration
- Temperature calibration bath monitoring
- Dry-block temperature calibration
- Temperature stability measurements
- Long-term temperature monitoring
- Temperature data logging
- Temperature trend analysis
- Industrial temperature measurement
- Quality assurance
- Research laboratories
- Pharmaceutical laboratories
- Production testing
- Field temperature calibration
- Temperature metrology
Calibration by europascal
Regular calibration is essential for maintaining reliable temperature measurement results.
europascal provides professional calibration services for temperature measuring instruments and reference temperature measurement systems.
The Fluke Calibration 1524 can be calibrated to verify its resistance and voltage measurement functions.
When combined with calibrated temperature probes, the instrument can be used as part of a traceable reference temperature measurement system.
The two measurement channels allow simultaneous measurements with a reference thermometer and a sensor under test.
For professional calibration and metrological traceability, visit the europascal Calibration Service.
europascal also supports customers with the selection of suitable reference temperature probes and temperature calibration equipment.
Why Choose the Fluke Calibration 1524?
The Fluke Calibration 1524 combines high measurement accuracy, versatile sensor compatibility and advanced data logging capabilities in a compact handheld instrument.
Its two independent measurement channels allow simultaneous temperature measurements with different sensor types.
This makes the instrument particularly useful for temperature comparison calibration and stability measurements.
Readout accuracy down to ±0.002 °C with precision thermistors provides excellent measurement performance.
The integrated data logger stores up to 15,000 measurements with date and time stamps.
The graphical display allows temperature trends to be monitored directly on the instrument.
Fast measurement rates down to 0.3 seconds support applications requiring rapid temperature monitoring.
Intelligent sensor connectors simplify operation and reduce configuration errors.
The internal memory and statistical functions support the evaluation of measurement results.
Battery-powered operation and compact dimensions make the instrument suitable for laboratory and field applications.
For professional users requiring a portable and precise reference thermometer with extensive data logging capabilities, the Fluke Calibration 1524 provides an excellent combination of accuracy, flexibility and ease of use.
europascal supports customers with temperature calibration equipment, reference thermometers and professional calibration services.
