The Fluke Calibration 787 is a versatile handheld ProcessMeter that combines the functions of a digital multimeter and a process loop calibrator in one instrument. Designed for industrial maintenance, process instrumentation and electrical troubleshooting, the Fluke Calibration 787 enables technicians to measure electrical signals, source current and simulate transmitter outputs.
With voltage measurement capabilities up to 1000 V AC/DC, current measurement up to 30 mA in the process measurement range and precision current sourcing for 4–20 mA applications, the Fluke Calibration 787 is a practical solution for industrial process calibration.
The instrument combines the familiar operation of a digital multimeter with specialized functions for testing current loops, transmitters, control systems and industrial instrumentation.
Its rugged handheld construction, clear LCD and integrated current source make it suitable for maintenance technicians, calibration engineers and industrial service personnel.
The Fluke Calibration 787 is the original ProcessMeter model and has been discontinued by the manufacturer. It remains relevant for organizations maintaining existing instruments and calibration equipment.
For professional electrical calibration and metrological traceability, europascal offers comprehensive support through the europascal Calibration Service.
Your Benefits at a Glance
- Digital multimeter and process loop calibrator in one instrument
- Voltage measurement up to 1000 V AC/DC
- True RMS measurement of AC voltage and current
- DC current measurement from 0 to 30 mA
- Current sourcing and simulation for industrial process loops
- 4–20 mA transmitter simulation
- Current output accuracy of 0.05% of span
- Simultaneous mA and percentage indication during current output
- Manual 25% current output steps
- Automatic stepping and ramp functions
- Resistance measurement up to 40 MΩ
- Frequency measurement up to approximately 20 kHz
- Continuity and diode testing
- MIN/MAX/AVG measurement functions
- Data Hold and Relative measurement modes
- Backlit LCD
- Rugged handheld construction
- Powered by one 9 V battery
- Suitable for industrial maintenance and process instrumentation
- Professional calibration support from europascal
Ideal for Industrial Process Calibration
The Fluke Calibration 787 is designed for technicians who need both electrical measurement and current loop calibration capabilities.
Industrial process control systems frequently use standardized electrical signals to transmit measurement information.
One of the most common signal standards is the 4–20 mA current loop.
These signals are widely used for transmitting pressure, temperature, flow and level measurements.
The Fluke Calibration 787 allows technicians to check the electrical characteristics of these signals and generate defined current values for testing connected equipment.
Combining both functions in one instrument reduces the number of devices required during maintenance and troubleshooting.
This makes the ProcessMeter particularly useful for service technicians working directly at industrial installations.
Precision 4–20 mA Current Loop Calibration
One of the most important functions of the Fluke Calibration 787 is its ability to generate and measure process current signals.
The instrument supports current sourcing and simulation for standard industrial current loops.
Typical calibration points include:
| Process Signal | Percentage of Span |
|---|---|
| 4 mA | 0% |
| 8 mA | 25% |
| 12 mA | 50% |
| 16 mA | 75% |
| 20 mA | 100% |
These current values are commonly used when checking industrial transmitters, indicators and control systems.
The Fluke Calibration 787 can generate defined current signals to verify how connected equipment responds.
For example, a current output of 12 mA corresponds to 50% of the configured span in a standard 4–20 mA measurement system.
This allows technicians to check the scaling of process indicators and control system inputs.
Current Sourcing and Simulation
The Fluke Calibration 787 provides two different methods for generating current signals.
Current Sourcing
In source mode, the instrument generates the required current signal.
This function can be used to test indicators, recorders and control system inputs.
The instrument provides a maximum load capability of approximately 500 Ω under the manufacturer’s specified conditions.
Current Simulation
In simulation mode, the Fluke Calibration 787 acts as a current regulating device within an externally powered current loop.
An external loop supply is required.
This allows technicians to simulate the behavior of a two-wire transmitter.
The distinction between sourcing and simulation is important when selecting the appropriate test configuration.
Unlike certain other ProcessMeter models, the original Fluke Calibration 787 does not provide an integrated 24 V loop power supply.
Accurate DC Current Measurement
The Fluke Calibration 787 provides a dedicated measurement range for process current signals.
The instrument measures DC current from:
0 to 30 mA
The measurement resolution is:
0.001 mA
The specified accuracy is:
±(0.05% of reading + 2 digits)
This makes the instrument suitable for checking industrial 4–20 mA signals.
The high measurement resolution allows small deviations from the expected process current to be detected.
For example, a technician can measure the output of a pressure transmitter and compare it with the expected current at a defined pressure.
The measurement result can then be used to evaluate the transmitter’s electrical output.
Digital Multimeter Functions
The Fluke Calibration 787 also provides the functions of an industrial digital multimeter.
This allows technicians to perform electrical troubleshooting without changing instruments.
Available measurement functions include:
- AC voltage
- DC voltage
- AC current
- DC current
- Resistance
- Frequency
- Continuity
- Diode testing
The multimeter functions are useful for identifying wiring faults, checking power supplies and evaluating electrical components.
The integrated True RMS measurement capability supports the measurement of AC signals under the specified operating conditions.
Voltage Measurement up to 1000 V
The Fluke Calibration 787 supports AC and DC voltage measurements up to:
1000 V
The instrument provides multiple measurement ranges.
The specified DC voltage accuracy is:
±(0.1% of reading + 1 digit)
Voltage measurement is useful when troubleshooting industrial control cabinets, power supplies and electrical installations.
The instrument can be used to check supply voltages and investigate electrical faults.
Users must observe the applicable electrical safety requirements and the instrument’s measurement category.
Resistance Measurement up to 40 MΩ
The Fluke Calibration 787 provides resistance measurement up to:
40 MΩ
The manufacturer specifies an accuracy of:
±(0.2% of reading + 1 digit)
Resistance measurement is useful for checking electrical components, wiring and connections.
The instrument can also be used to investigate open circuits and unexpected resistance values.
Resistance measurements must be performed only on circuits that have been safely disconnected from their power supply.
Frequency Measurement up to 20 kHz
The Fluke Calibration 787 supports frequency measurement up to approximately:
20 kHz
The specified maximum frequency range is 19.999 kHz.
Frequency measurement is useful for checking suitable electrical signals in industrial control systems.
It can help technicians verify signal frequencies and identify deviations from expected operating conditions.
The instrument is not intended to replace a dedicated high-frequency counter for demanding frequency metrology applications.
Automatic Current Stepping and Ramping
The Fluke Calibration 787 provides convenient functions for testing industrial current loops.
Manual 25% Steps
The current output can be adjusted in 25% increments.
For a standard 4–20 mA loop, these correspond to:
4 mA, 8 mA, 12 mA, 16 mA and 20 mA.
This allows technicians to check multiple points without manually entering each current value.
Automatic Stepping
The instrument can automatically change the current output between predefined values.
This function is useful for checking the response of indicators and control systems.
Automatic Ramping
The automatic ramp function generates a changing current signal.
This allows technicians to observe how connected equipment responds over the measurement range.
Automatic stepping and ramping help simplify repetitive testing procedures.
MIN/MAX/AVG and Hold Functions
The Fluke Calibration 787 provides additional measurement functions for troubleshooting.
The MIN/MAX function records the minimum and maximum measured values.
The average function provides information about the average measurement value during the recording period.
The Hold function allows the current display value to be retained.
Relative measurement mode enables comparison with a stored reference value.
These functions are useful for identifying variations and intermittent electrical problems.
Rugged Handheld Construction
The Fluke Calibration 787 is designed for industrial use.
Its compact construction makes it suitable for transportation between measurement locations.
The instrument features a protective holster and a backlit LCD.
The manufacturer specifies dimensions of approximately:
201 × 98 × 52 mm
The weight is approximately:
642 g
The instrument operates using one 9 V alkaline battery.
This makes it independent of an external power supply during normal measurement and calibration work.
Technical Highlights
| Specification | Fluke Calibration 787 |
|---|---|
| Manufacturer | Fluke |
| Model | 787 |
| Product type | ProcessMeter |
| Instrument functions | Digital multimeter and loop calibrator |
| AC voltage measurement | Up to 1000 V |
| DC voltage measurement | Up to 1000 V |
| DC voltage accuracy | ±(0.1% reading + 1 digit) |
| Process current measurement | 0–30 mA DC |
| Process current resolution | 0.001 mA |
| Process current accuracy | ±(0.05% reading + 2 digits) |
| Current sourcing | 0–20 mA and 4–20 mA applications |
| Current output accuracy | 0.05% of span |
| Maximum current output load | 500 Ω |
| Current simulation | Yes |
| Integrated 24 V loop supply | No |
| Resistance measurement | Up to 40 MΩ |
| Resistance accuracy | ±(0.2% reading + 1 digit) |
| Frequency measurement | Up to 19.999 kHz |
| Continuity testing | Yes |
| Diode testing | Yes |
| True RMS measurement | Yes |
| Automatic current stepping | Yes |
| Automatic current ramping | Yes |
| MIN/MAX/AVG | Yes |
| Display | Backlit LCD |
| Operating temperature | −20 °C to +55 °C |
| Battery | One 9 V alkaline battery |
| Dimensions | 201 × 98 × 52 mm |
| Weight | Approx. 642 g |
| Manufacturer status | Discontinued |
| Successor model | Fluke 787B |
Fluke Calibration 787 or Fluke 787B?
The Fluke Calibration 787 is the original ProcessMeter.
The Fluke 787B is the newer generation recommended by the manufacturer.
Both instruments combine digital multimeter functions with process current calibration.
The original Fluke Calibration 787 remains suitable for maintaining existing process measurement systems.
However, users purchasing a new instrument should also consider the Fluke 787B.
The availability of the original model, replacement parts and accessories should be confirmed before ordering.
Calibration Service by europascal
Regular calibration is essential for maintaining reliable electrical measurements and process calibration results.
europascal provides professional calibration services for electrical measuring instruments and process calibrators.
The Fluke Calibration 787 combines several measurement functions, each requiring appropriate calibration procedures.
Relevant functions include DC voltage, AC voltage, DC current, AC current, resistance, frequency and current output.
During calibration, the measured or generated values are compared with suitable traceable reference standards.
The measurement uncertainty depends on the selected function, measurement range and calibration procedure.
For professional calibration and metrological traceability, visit the europascal Calibration Service.
Why Choose the Fluke Calibration 787?
The Fluke Calibration 787 combines the functionality of a digital multimeter and a process loop calibrator in one rugged handheld instrument.
Its integrated current source and simulation functions make it particularly useful for testing industrial 4–20 mA systems.
The instrument supports voltage measurement up to 1000 V, current measurement, resistance measurement and frequency measurement.
Automatic current stepping and ramping simplify the verification of industrial indicators and control systems.
The compact design allows technicians to perform electrical measurements and process calibration tasks directly at the installation site.
For organizations already using the original ProcessMeter, the Fluke Calibration 787 remains a practical instrument for routine maintenance and troubleshooting.
europascal supports customers with professional electrical calibration services and technical advice.
Typical Applications for the Fluke Calibration 787
The Fluke Calibration 787 is suitable for numerous industrial measurement and calibration applications.
Typical applications include process current loop calibration, 4–20 mA transmitter simulation, control system input testing, industrial electrical troubleshooting, voltage measurement, resistance measurement, frequency measurement, preventive maintenance, commissioning, instrumentation maintenance and calibration laboratory applications.
The combination of digital multimeter functions and process current calibration makes the Fluke Calibration 787 a versatile solution for industrial service and maintenance.
Find more Fluke Calibration products here.
Manufacturer information for the Fluke Calibration 787 can be found on the official Fluke website.
