The Fluke Calibration 724 is a versatile handheld temperature calibrator designed for professional testing, troubleshooting and calibration of temperature sensors, transmitters and industrial temperature measurement systems. Combining accurate measurement and simulation functions in one compact instrument, the Fluke Calibration 724 provides a practical solution for maintenance technicians, calibration laboratories and industrial process engineers.

The Fluke Calibration 724 measures and simulates thermocouples, resistance temperature detectors (RTDs), resistance and voltage signals. It also measures current in 4–20 mA process loops and provides a 24 V loop power supply for testing temperature transmitters.

One of the most important advantages of the Fluke Calibration 724 is its ability to simultaneously generate a temperature signal and measure the corresponding transmitter output. This makes it particularly useful for calibrating temperature transmitters without requiring several separate instruments.

The calibrator supports 12 thermocouple types and seven RTD types, providing compatibility with many industrial temperature measurement systems.

Its dual display allows technicians to monitor input and output signals simultaneously, while automatic stepping and ramping functions simplify repetitive calibration procedures.

The Fluke Calibration 724 is designed for field applications. Its rugged construction, illuminated display and battery-powered operation make it suitable for use in industrial installations and maintenance environments.

At europascal, the Fluke Calibration 724 provides a flexible solution for temperature calibration and process instrumentation testing. europascal supports customers with professional calibration equipment, accessories and calibration services.

For reliable measurement results and metrological traceability, visit the europascal Calibration Service.

Your Benefits at a Glance

• Portable handheld temperature calibrator
• Measurement and simulation of thermocouples
• Measurement and simulation of RTD sensors
• Supports 12 thermocouple types
• Supports seven RTD types
• Voltage measurement up to 30 V DC
• Voltage generation up to 10 V DC
• Current measurement up to 24 mA DC
• Integrated 24 V loop power supply
• Resistance measurement up to 3200 Ω
• Resistance simulation from 15 Ω to 3200 Ω
• Simultaneous temperature simulation and current measurement
• Dual display for input and output signals
• Automatic cold junction compensation
• Automatic temperature stepping
• Automatic ramp functions
• 25% and 100% step functions
• Storage of eight instrument configurations
• Illuminated display
• Rugged industrial construction
• Battery-powered operation
• Typical battery life of 25 hours
• Compact dimensions
• Weight of approximately 650 g
• Suitable for laboratory and field calibration
• Professional calibration support from europascal

Professional Temperature Calibration

The Fluke Calibration 724 is designed for the calibration and testing of industrial temperature measurement equipment.

Temperature sensors and transmitters are widely used in industrial processes to monitor and control operating conditions.

Accurate temperature measurements are essential for process stability, product quality and operational safety.

The Fluke Calibration 724 provides measurement and simulation functions for common temperature sensor technologies.

These include thermocouples and resistance temperature detectors.

The instrument can simulate the electrical output of a temperature sensor, allowing the response of a temperature transmitter or indicator to be checked.

It can also measure signals from temperature sensors for troubleshooting and verification.

This makes the Fluke Calibration 724 a versatile instrument for temperature instrumentation maintenance.

Thermocouple Measurement and Simulation

The Fluke Calibration 724 supports the measurement and simulation of multiple thermocouple types.

Supported thermocouple types include:

• Type J
• Type K
• Type T
• Type E
• Type R
• Type S
• Type B
• Type L
• Type U
• Type N
• Type XK
• Type BP

Thermocouples generate a thermoelectric voltage depending on the temperature difference between the measuring junction and the reference junction.

The Fluke Calibration 724 can measure this voltage and convert it into a temperature indication according to the selected thermocouple characteristic.

In simulation mode, the calibrator generates the corresponding thermoelectric voltage for a selected temperature.

This allows temperature transmitters, indicators and controllers to be tested without requiring a physical temperature source.

Automatic Cold Junction Compensation

Accurate thermocouple measurement requires consideration of the reference junction temperature.

The Fluke Calibration 724 includes automatic cold junction compensation.

An internal temperature sensor measures the temperature at the thermocouple connection.

The instrument uses this information to compensate for the reference junction temperature.

This allows thermocouple temperatures to be measured and simulated without requiring an external ice-point reference.

Automatic cold junction compensation simplifies field calibration and reduces the number of additional instruments required.

RTD Measurement and Simulation

The Fluke Calibration 724 also supports resistance temperature detectors.

Supported RTD characteristics include:

• Ni120
• Pt100 (385)
• Pt100 (3926)
• Pt100 (3916)
• Pt200 (385)
• Pt500 (385)
• Pt1000 (385)

Resistance thermometers change their electrical resistance as a function of temperature.

The Fluke Calibration 724 measures the sensor resistance and converts it into a temperature indication according to the selected RTD characteristic.

In simulation mode, the instrument electronically simulates the resistance corresponding to a selected temperature.

This allows temperature transmitters and measurement systems to be tested without connecting a physical RTD sensor.

The instrument supports RTD measurement using two-, three- and four-wire connections.

Four-wire measurement minimizes the influence of connecting lead resistance.

Pt100 Temperature Calibration

Pt100 resistance thermometers are among the most widely used industrial temperature sensors.

A Pt100 sensor has a nominal resistance of 100 Ω at 0 °C.

The Fluke Calibration 724 supports several Pt100 characteristics, including the widely used Pt100 (385) characteristic.

For Pt100 (385), the manufacturer specifies a measurement accuracy of:

±0.33 °C

The temperature resolution is:

0.1 °C

This makes the instrument suitable for many industrial temperature measurement and transmitter calibration applications.

The appropriate Pt100 characteristic must be selected to ensure correct temperature conversion.

Temperature Transmitter Calibration

One of the main applications of the Fluke Calibration 724 is the calibration of temperature transmitters.

Temperature transmitters convert temperature sensor signals into standardized electrical output signals.

Many industrial temperature transmitters use:

4–20 mA

During calibration, the Fluke Calibration 724 simulates a thermocouple or RTD signal corresponding to a defined temperature.

The transmitter converts this simulated temperature into an electrical output signal.

The Fluke Calibration 724 simultaneously measures the transmitter output current.

The measured current can then be compared with the expected value.

For a transmitter configured for a linear 4–20 mA output, the expected current can be calculated as:

I = 4 mA + 16 mA × (T − T_min) / (T_max − T_min)

Where:

• I = Expected output current
• T = Simulated temperature
• T_min = Lower temperature range value
• T_max = Upper temperature range value

This allows technicians to evaluate transmitter linearity and measurement deviation.

Integrated 24 V Loop Power Supply

The Fluke Calibration 724 includes an integrated 24 V loop power supply.

This function is particularly useful when testing two-wire temperature transmitters.

The calibrator can provide the electrical power required by the transmitter while simultaneously measuring the loop current.

The manufacturer specifies:

Loop supply voltage: 24 V DC

Maximum current: 22 mA

The output is short-circuit protected.

This eliminates the need for an additional external power supply in many field calibration applications.

Current Measurement up to 24 mA

The Fluke Calibration 724 measures direct current up to:

24.000 mA

The manufacturer specifies an accuracy of:

±(0.02% of reading + 2 counts)

This function is particularly useful for testing industrial 4–20 mA process signals.

The instrument can measure the output of a temperature transmitter while simultaneously generating the corresponding sensor input signal.

This combination simplifies temperature transmitter calibration and reduces the number of required instruments.

Voltage Measurement and Generation

The Fluke Calibration 724 provides voltage measurement and generation functions.

The instrument can measure DC voltage up to:

30.000 V

It can generate DC voltage up to:

10.000 V

The specified voltage accuracy is:

±(0.02% of reading + 2 counts)

The calibrator also supports millivolt measurement and generation for thermocouple applications.

These functions allow technicians to test temperature measurement systems that use voltage signals.

Resistance Measurement and Simulation

The Fluke Calibration 724 supports resistance measurement from:

0 Ω to 3200 Ω

Resistance simulation is available from:

15 Ω to 3200 Ω

This makes the instrument suitable for testing resistance-based temperature measurement systems.

The measurement accuracy depends on the selected resistance range and connection method.

The resistance simulation accuracy also depends on the excitation current supplied by the connected instrument.

These specifications should be considered when evaluating the measurement uncertainty of a calibration procedure.

Dual Display for Simultaneous Measurements

The Fluke Calibration 724 features a dual display.

The upper display can show measured voltage or current.

The lower display can show measured or simulated temperature, voltage or resistance.

This allows technicians to monitor two related signals simultaneously.

For example, the calibrator can simulate a temperature of 100 °C while displaying the corresponding transmitter output current.

This significantly simplifies calibration procedures.

The illuminated display also improves readability in poorly lit industrial environments.

Automatic Step Functions

The Fluke Calibration 724 includes automatic and manual step functions.

The manufacturer specifies:

25% steps

100% steps

These functions are useful for testing the linearity of temperature transmitters.

For example, a transmitter can be tested at:

• 0% of measuring range
• 25% of measuring range
• 50% of measuring range
• 75% of measuring range
• 100% of measuring range

The step function reduces manual adjustment and improves the consistency of repeated calibration procedures.

Automatic Ramp Functions

The Fluke Calibration 724 also provides automatic ramp functions.

Available functions include:

• Slow ramp
• Fast ramp
• 25% step ramp

These functions are particularly useful for testing temperature transmitters, controllers and indicators.

A continuously changing simulated temperature can be used to observe the response of a connected measurement system.

Automatic ramping also simplifies repetitive testing procedures.

Storage of Instrument Configurations

The Fluke Calibration 724 can store up to:

Eight instrument configurations

Frequently used calibration settings can be saved and recalled.

This is particularly useful when technicians regularly calibrate similar temperature transmitters or sensors.

Stored configurations reduce setup time and help prevent operating errors.

Rugged and Portable Construction

The Fluke Calibration 724 is designed for demanding industrial environments.

Its compact housing provides reliable protection during daily field use.

The instrument is powered by four AA alkaline batteries.

The manufacturer specifies a typical battery life of:

25 hours

The battery compartment is easily accessible, allowing batteries to be replaced quickly.

The backlit display supports operation in poorly illuminated areas.

The compact design makes the calibrator suitable for mobile maintenance and field calibration.

Technical Highlights

Scope of Delivery

The standard Fluke Calibration 724 package includes:

• Fluke 724 Temperature Calibrator
• Protective boot
• AC175 alligator clips
• Stackable test leads
• TL75 test leads
• Four AA alkaline batteries
• Traceable calibration report with measurement data
• Quick reference guide
• Safety instructions

The exact delivery configuration may vary depending on the market and ordering version.

Typical Applications

The Fluke Calibration 724 is suitable for:

• Temperature transmitter calibration
• Thermocouple simulation
• Thermocouple measurement
• Pt100 calibration
• RTD simulation
• Resistance thermometer testing
• Temperature indicator verification
• 4–20 mA loop testing
• Process instrumentation maintenance
• Industrial temperature measurement
• Temperature sensor troubleshooting
• Production testing
• Quality assurance
• Field calibration
• Laboratory calibration
• Temperature metrology
• Maintenance departments
• Industrial automation
• Process control systems

Calibration by europascal

Regular calibration is essential for maintaining accurate temperature measurements and reliable industrial process control.

europascal provides professional calibration services for temperature measuring instruments and electrical measurement equipment.

The Fluke Calibration 724 can be calibrated to verify its measurement and simulation functions.

Depending on the required calibration scope, relevant functions may include thermocouple simulation, RTD simulation, resistance measurement, voltage measurement and current measurement.

For professional calibration and metrological traceability, visit the europascal Calibration Service.

europascal also supports customers with the selection of suitable temperature calibration equipment and accessories.

Why Choose the Fluke Calibration 724?

The Fluke Calibration 724 combines temperature measurement, sensor simulation and process loop testing in one compact handheld instrument.

Its ability to measure and simulate thermocouples and RTDs makes it suitable for many industrial temperature calibration applications.

The integrated 24 V loop power supply and simultaneous current measurement simplify temperature transmitter calibration.

The dual display allows technicians to monitor simulated temperature and transmitter output at the same time.

Automatic stepping and ramping functions reduce manual operation and improve calibration efficiency.

Support for 12 thermocouple types and seven RTD types provides excellent flexibility.

The compact construction, backlit display and battery-powered operation make the instrument suitable for demanding field applications.

For technicians who require a reliable and versatile temperature calibrator, the Fluke Calibration 724 provides an excellent combination of measurement functions, portability and ease of use.

europascal supports professional users with temperature calibration equipment, accessories and calibration services.

Further products from Fluke Calibration can be found here.

Manufacturer information about the Fluke Calibration 724 can be found on the official Fluke website.

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