The Fluke Calibration 714B is a high-precision handheld thermocouple calibrator designed for measuring and simulating thermocouple signals in industrial process applications, calibration laboratories and maintenance environments.
With support for 17 different thermocouple types, millivolt measurement and simulation, and simultaneous 4–20 mA current measurement, the Fluke Calibration 714B provides a versatile solution for professional temperature instrumentation calibration.
The instrument combines accurate measurement performance with intuitive operation and a compact, battery-powered design. It is particularly suitable for technicians who need to calibrate thermocouple temperature transmitters, temperature indicators, controllers and industrial measurement systems directly in the field.
Unlike temperature calibration baths or dry block calibrators, the Fluke Calibration 714B generates and measures electrical signals corresponding to thermocouples. This allows temperature instrumentation to be tested without physically generating the corresponding temperature.
The integrated current measurement function enables technicians to verify the output of temperature transmitters while simultaneously simulating a thermocouple input signal.
Additional features include automatic ramp functions, configurable 0% and 100% output settings, a backlit display and an integrated magnetic hanging accessory.
The Fluke Calibration 714B is designed for industrial users who require accurate, reliable and convenient thermocouple calibration without the complexity of a multifunction process calibrator.
For professional calibration services and metrological traceability, visit the europascal Calibration Service.
Your Benefits at a Glance
- Measurement and simulation of 17 thermocouple types
- Precision millivolt measurement
- Precision millivolt simulation
- Simultaneous 4–20 mA current measurement
- Support for common thermocouple types J, K, T, E, N, R, S and B
- Additional support for specialized thermocouple characteristics
- Automatic reference junction compensation
- Configurable 0% and 100% output settings
- Automatic 25% step functions
- Linear ramp functionality
- Suitable for thermocouple transmitter calibration
- Suitable for temperature indicator verification
- Suitable for temperature controller testing
- Backlit display
- Compact handheld design
- Battery-powered operation
- Magnetic hanging accessory included
- Automatic recall of previous settings
- One-year and two-year accuracy specifications
- Traceable manufacturer calibration certificate included
- Protection rating IP52
- Suitable for industrial maintenance and field calibration
- Professional calibration support from europascal
Thermocouple Measurement and Simulation
The Fluke Calibration 714B provides two essential functions for temperature instrumentation calibration.
Thermocouple measurement allows the instrument to measure the thermoelectric voltage generated by a connected thermocouple and display the corresponding temperature.
Thermocouple simulation allows the instrument to generate the electrical voltage corresponding to a selected thermocouple type and temperature.
These functions make the Fluke Calibration 714B suitable for checking temperature transmitters, indicators, controllers and other thermocouple measurement systems.
For example, an industrial temperature transmitter can be disconnected from its thermocouple sensor and connected to the Fluke Calibration 714B.
The calibrator then simulates defined temperatures, allowing the technician to verify the transmitter’s output signal.
This procedure is particularly useful when the actual process temperature cannot be changed during maintenance.
The simulated thermocouple voltage is generated according to the selected thermocouple characteristic.
Supports 17 Different Thermocouple Types
The Fluke Calibration 714B supports 17 different thermocouple characteristics.
These include commonly used industrial thermocouples and specialized high-temperature thermocouple types.
Supported thermocouple types include:
- Type E
- Type N
- Type J
- Type K
- Type T
- Type B
- Type R
- Type S
- Type C
- Type L
- Type U
- Type BP
- Type XK
- Type G
- Type D
- Type P
- Type M
This wide selection makes the Fluke Calibration 714B suitable for numerous industrial temperature measurement applications.
The correct thermocouple characteristic must be selected before performing a measurement or simulation.
Using an incorrect thermocouple type can introduce significant temperature errors.
Type K Thermocouple Calibration
The Fluke Calibration 714B is particularly suitable for calibrating Type K thermocouple instrumentation.
Type K thermocouples are widely used in industrial temperature measurement because of their broad temperature range and robust construction.
The Fluke Calibration 714B supports Type K temperatures from:
−200 °C to +1372 °C
The instrument can measure the voltage generated by a Type K thermocouple and convert it into temperature.
In simulation mode, it generates the corresponding thermoelectric voltage for a selected temperature.
This makes it possible to verify temperature transmitters, indicators and controllers without requiring a physical temperature source.
The manufacturer specifies a one-year Type K simulation accuracy of:
±0.3 °C between −100 °C and +1372 °C
For temperatures below −100 °C, the specified accuracy is higher in numerical value.
The actual accuracy depends on the selected temperature range and operating conditions.
Type J Thermocouple Calibration
The Fluke Calibration 714B also supports Type J thermocouples.
Type J thermocouples are commonly used in industrial process applications and temperature measurement systems.
The supported temperature range is:
−210 °C to +1200 °C
The Fluke Calibration 714B allows technicians to measure and simulate Type J thermocouple signals.
This is particularly useful when checking industrial temperature transmitters and controllers.
For Type J simulation between −100 °C and +800 °C, the manufacturer specifies a one-year accuracy of:
±0.2 °C
The accuracy varies outside this temperature interval.
Type T Thermocouple Calibration
Type T thermocouples are frequently used for low-temperature measurements.
The Fluke Calibration 714B supports Type T temperatures from:
−250 °C to +400 °C
This makes the instrument suitable for testing temperature measurement systems used in refrigeration, laboratory and industrial applications.
The calibrator can measure and simulate the corresponding Type T thermocouple voltage.
For Type T simulation between 0 °C and +400 °C, the manufacturer specifies a one-year accuracy of:
±0.3 °C
At lower temperatures, the accuracy specifications depend on the selected temperature interval.
High-Temperature Thermocouple Calibration
The Fluke Calibration 714B supports several thermocouple types used for elevated temperatures.
These include:
- Type R
- Type S
- Type B
- Type C
- Type G
- Type D
- Type BP
The supported temperature range depends on the selected thermocouple type.
For example, Type B is supported up to:
+1820 °C
Type C is supported up to:
+2316 °C
Type BP is supported up to:
+2500 °C
These values describe the supported thermocouple simulation and measurement characteristics.
They do not represent the operating temperature of the calibrator itself.
The instrument generates the corresponding electrical signal without producing the physical temperature.
Precision Millivolt Measurement
In addition to thermocouple temperature measurement, the Fluke Calibration 714B can measure DC millivolt signals directly.
The millivolt measurement range is:
−10 mV to +75 mV
The manufacturer specifies a one-year measurement accuracy of:
±(0.015% of reading + 10 µV)
The millivolt measurement function is particularly useful when testing thermocouple measurement circuits.
It can also be used to evaluate compatible low-level DC voltage signals.
For accurate measurements, suitable connections and stable environmental conditions are essential.
Precision Millivolt Simulation
The Fluke Calibration 714B can also generate precise DC millivolt signals.
The output range is:
−10 mV to +75 mV
The specified one-year output accuracy is:
±(0.015% of output + 10 µV)
This function allows technicians to test temperature transmitters and indicators directly in millivolt mode.
It is particularly useful when a transmitter is configured to accept a linear millivolt input.
The millivolt output can be adjusted manually or used with the automatic step and ramp functions.
Simultaneous 4–20 mA Measurement
One of the most useful features of the Fluke Calibration 714B is its ability to measure current while simultaneously simulating a thermocouple signal.
The instrument provides a current measurement channel with a range of:
0 mA to 24 mA
The resolution is:
0.001 mA
The specified one-year accuracy is:
±(0.010% of reading + 2 µA)
This makes the instrument particularly suitable for checking industrial temperature transmitters with 4–20 mA outputs.
The Fluke Calibration 714B generates the corresponding thermocouple voltage while measuring the transmitter output current.
This allows the electrical conversion process to be evaluated without requiring a separate current meter.
Calibration of Temperature Transmitters
Temperature transmitters convert thermocouple signals into standardized electrical output signals.
A common industrial output range is:
4 mA to 20 mA
The Fluke Calibration 714B allows technicians to simulate a thermocouple and simultaneously measure the resulting transmitter current.
For a transmitter configured from 0 °C to 400 °C, typical test points are:
| Simulated Temperature | Expected Output |
|---|---|
| 0 °C | 4 mA |
| 100 °C | 8 mA |
| 200 °C | 12 mA |
| 300 °C | 16 mA |
| 400 °C | 20 mA |
This example assumes a linear transmitter output over the configured temperature range.
The measured current can be compared with the expected value to determine the transmitter error.
This procedure is suitable for routine calibration, commissioning and troubleshooting.
Configurable 0% and 100% Settings
The Fluke Calibration 714B allows users to define the lower and upper limits of a calibration range.
These settings are identified as:
0%
and
100%
Once the limits have been configured, the instrument can generate intermediate test points.
This simplifies calibration procedures involving standardized measurement ranges.
For example, a thermocouple transmitter configured for 0 °C to 800 °C can be tested at:
- 0 °C
- 200 °C
- 400 °C
- 600 °C
- 800 °C
The configurable output limits reduce the need to enter each temperature manually.
Automatic 25% Step Function
The Fluke Calibration 714B provides an automatic step function.
The instrument can generate output values in:
25% increments
This allows technicians to perform standardized five-point calibration procedures.
The function is particularly useful when testing temperature transmitters and indicators.
By automatically generating defined test points, the calibrator simplifies routine calibration work.
The measured output values can be documented and evaluated according to the required calibration procedure.
Linear Ramp Function
The Fluke Calibration 714B also provides a linear ramp function.
This function changes the simulated temperature continuously between configured limits.
Linear ramps are useful for checking the response of temperature indicators, controllers and transmitters.
They can also be used to evaluate switching points and general response behavior.
The ramp function is based on the configured 0% and 100% output settings.
Reference Junction Compensation
Thermocouple measurements require consideration of the reference junction temperature.
The Fluke Calibration 714B provides automatic reference junction compensation.
This function compensates for the temperature at the thermocouple connection.
Correct reference junction compensation is essential for accurate thermocouple measurements and simulations.
The temperature difference between the reference junction and the thermocouple measuring junction determines the thermoelectric voltage.
For demanding calibration applications, the uncertainty associated with reference junction compensation must be considered.
Compact Handheld Design
The Fluke Calibration 714B is designed for portable use.
Its dimensions are approximately:
188.5 × 84 × 52.5 mm
The instrument weighs approximately:
515 g
The compact design makes it suitable for use in industrial facilities, production environments and calibration laboratories.
The handheld construction allows technicians to perform measurements directly at the installation location.
Battery-Powered Operation
The Fluke Calibration 714B operates using:
Four AA batteries
Battery operation makes the instrument independent of external power supplies during field measurements.
This is particularly useful when calibrating temperature transmitters installed in production facilities.
The instrument also remembers its settings when switched off.
This allows technicians to continue calibration work without repeatedly configuring the same parameters.
Backlit Display
The Fluke Calibration 714B features a backlit display.
The display allows measurement values and simulation settings to be read clearly.
This is particularly useful in industrial environments with limited lighting.
The dual-input arrangement supports convenient operation when measuring transmitter current while generating a thermocouple simulation signal.
Magnetic Hanging Accessory
The Fluke Calibration 714B includes a magnetic hanging accessory.
This allows the instrument to be attached to suitable metal surfaces.
Hands-free operation is particularly useful when connecting test leads, adjusting transmitters or documenting calibration results.
The magnetic accessory helps improve convenience during field calibration.
Robust Industrial Construction
The Fluke Calibration 714B is designed for demanding industrial environments.
The manufacturer specifies a protection rating of:
IP52
The instrument is suitable for operation at ambient temperatures from:
−10 °C to +50 °C
The construction is designed to withstand normal industrial handling.
The maximum voltage between terminals or between a terminal and earth ground is:
30 V
The specified electrical safety limits must always be observed.
Technical Highlights
| Specification | Fluke Calibration 714B |
|---|---|
| Manufacturer | Fluke |
| Model | 714B |
| Product type | Thermocouple Calibrator |
| Supported thermocouple types | 17 |
| Thermocouple measurement | Yes |
| Thermocouple simulation | Yes |
| Millivolt measurement | −10 to +75 mV |
| Millivolt simulation | −10 to +75 mV |
| mV measurement accuracy | ±(0.015% + 10 µV) |
| mV output accuracy | ±(0.015% + 10 µV) |
| Current measurement | 0–24 mA |
| Current resolution | 0.001 mA |
| Current accuracy | ±(0.010% + 2 µA) |
| Simultaneous TC simulation and mA measurement | Yes |
| Automatic step function | 25% increments |
| Linear ramp function | Yes |
| Configurable 0% and 100% settings | Yes |
| Reference junction compensation | Automatic |
| Display | Backlit |
| Magnetic hanging accessory | Included |
| Power supply | 4 AA batteries |
| Operating temperature | −10 °C to +50 °C |
| Storage temperature | −30 °C to +60 °C |
| Protection rating | IP52 |
| Maximum terminal voltage | 30 V |
| Dimensions | 188.5 × 84 × 52.5 mm |
| Weight | 515 g |
| Calibration certificate | Traceable manufacturer certificate included |
Fluke Calibration 714B or 712B?
The Fluke Calibration 714B and Fluke Calibration 712B are both portable temperature calibrators.
However, they are designed for different sensor technologies.
The Fluke Calibration 714B is optimized for thermocouple calibration.
It measures and simulates thermocouple signals and millivolt voltages.
The Fluke Calibration 712B is designed for resistance temperature detector calibration.
It measures and simulates RTD characteristics and electrical resistance.
Both instruments support simultaneous current measurement for checking temperature transmitters.
Choose the Fluke Calibration 714B when calibrating Type K, J, T, E, N, R, S, B and other thermocouple-based temperature instrumentation.
Choose the Fluke Calibration 712B when working primarily with Pt100, Pt1000 and other RTD sensors.
Calibration Service by europascal
Regular calibration is essential for maintaining reliable and traceable temperature measurements.
europascal provides professional calibration services for electrical and temperature measuring instruments.
When the Fluke Calibration 714B is used for thermocouple simulation, the relevant temperature or millivolt output accuracy must be considered.
For transmitter calibration, the uncertainty of the simulated thermocouple signal and the uncertainty of the current measurement must be included in the overall measurement uncertainty evaluation.
Additional uncertainty contributions may arise from reference junction compensation, thermocouple extension cables and connection conditions.
The uncertainty contributions depend on the selected thermocouple type, temperature range and measurement configuration.
For professional calibration services and metrological traceability, visit the europascal Calibration Service.
Why Choose the Fluke Calibration 714B?
The Fluke Calibration 714B combines precise thermocouple measurement and simulation with convenient handheld operation.
Support for 17 different thermocouple characteristics makes it suitable for a wide variety of industrial temperature measurement systems.
The integrated millivolt measurement and simulation functions provide additional flexibility.
Simultaneous 4–20 mA measurement allows temperature transmitters to be tested efficiently without requiring a separate current meter.
Automatic 25% step functions and linear ramps simplify routine calibration procedures.
The compact, battery-powered construction and magnetic hanging accessory make the instrument particularly suitable for field service applications.
A backlit display and automatic recall of previous settings improve everyday usability.
For calibration technicians, maintenance engineers and industrial users requiring a precise and portable thermocouple calibrator, the Fluke Calibration 714B provides an excellent combination of functionality, accuracy and convenience.
europascal supports customers with professional calibration equipment, technical advice and calibration services.
Typical Applications for the Fluke Calibration 714B
Typical applications include:
- Thermocouple calibration
- Type K thermocouple calibration
- Type J thermocouple calibration
- Type T thermocouple calibration
- Type R and S thermocouple calibration
- Thermocouple simulation
- Millivolt measurement
- Millivolt simulation
- Temperature transmitter calibration
- 4–20 mA transmitter testing
- Temperature indicator verification
- Temperature controller testing
- PLC thermocouple input testing
- Industrial process instrumentation
- Preventive maintenance
- Commissioning
- Field calibration
- Calibration laboratories
- Industrial quality assurance
The combination of accurate thermocouple measurement, millivolt simulation, integrated current measurement and portable construction makes the Fluke Calibration 714B a professional solution for demanding temperature instrumentation calibration.
Find more Fluke Calibration products here.
Manufacturer information for the Fluke Calibration 714B can be found on the official Fluke website.
