Fluke 719Pro Electric Pressure Calibrator
The Fluke 719Pro is a precision electric pressure calibrator designed for field calibration of pressure transmitters, pressure switches and pressure gauges. Its integrated electric pump allows technicians to generate test pressure without relying on a separate external pressure source, while the built-in loop calibrator provides electrical signal testing in the same instrument.
Integrated Electric Pump for One-Handed Calibration
One of the defining features of the Fluke 719Pro is its integrated electric pressure pump.
Instead of manually generating pressure with a hand pump, technicians can use the electric pump to reach the required test pressure, while the precision vernier provides fine pressure adjustment.
The programmable pump limit also allows a target pressure to be set, helping prevent unintended over-pressurization during calibration.
This makes the 719Pro particularly useful for repetitive pressure calibration work where speed and consistent pressure generation are important.
High-Accuracy Pressure Measurement
The 719Pro is available in three internal pressure ranges:
719Pro-30G: -12 to 30 psi / -0.8 to 2 bar
719Pro-150G: -12 to 150 psi / -0.8 to 10 bar
719Pro-300G: -12 to 300 psi / -0.8 to 20 bar
Pressure accuracy: ±0.025% of full scale, 6 months
Pressure accuracy: ±0.035% of full scale, 1 year
Dry air and non-corrosive gas only
Precision pressure adjustment vernier
The 30G version provides 0.001 psi / 0.0001 bar resolution, while the 150G and 300G versions provide 0.01 psi / 0.001 bar resolution.
Built-In mA Loop Calibrator
The Fluke 719Pro is more than a pressure calibrator. It includes a full-function loop calibrator capable of measuring, sourcing and simulating 0–24 mA.
Key electrical specifications include:
mA range: 0–24 mA DC
Resolution: 0.001 mA
Accuracy: ±0.015% of reading ±2 counts
mA source load: up to 1000 Ω
mA simulation: up to 26 V DC
Loop power: 24 V DC
Loop supply capability: 24 mA at 24 V
This allows the 719Pro to test both the pressure input and electrical output of a pressure transmitter.
Pressure Transmitter Calibration
A typical pressure transmitter calibration procedure can be performed directly with the 719Pro:
Generate pressure → Measure reference pressure → Measure transmitter mA output → Compare the response
The large backlit display can show three parameters simultaneously:
Pressure measurement
Sourced, simulated or measured mA
Temperature when an optional RTD probe is connected
This makes it easier to evaluate transmitter performance at multiple calibration points without switching between separate instruments.
Pressure Switch Testing
The Fluke 719Pro includes a dedicated pressure switch test function.
This allows technicians to determine switch operating behavior during increasing and decreasing pressure conditions, making it suitable for pressure switch verification during commissioning and maintenance.
Typical applications include:
Pressure switch set-point verification
Reset-point testing
Process protection testing
Maintenance and commissioning
Extended Pressure Measurement
When the internal pressure range is not sufficient, the 719Pro can be connected to compatible Fluke 750P pressure modules.
Fluke specifies compatibility with 29 different 750P pressure modules, allowing the pressure measurement range to be extended significantly beyond the internal 30, 150 and 300 psi sensors.
This makes the 719Pro more flexible for facilities where multiple pressure ranges need to be covered.
Optional Precision Temperature Measurement
The Fluke 719Pro can also measure temperature using an optional Pt100 RTD probe.
The specified temperature measurement range is:
-50 to +150 °C
Resolution: 0.01 °C
Accuracy: ±0.1 °C
Combined uncertainty with the optional 720 RTD probe: ±0.25 °C
This allows technicians to consider temperature effects during precision pressure calibration.
Fluid Protection for the Internal Pump
Pressure calibration can expose pump mechanisms to moisture or process fluids. The 719Pro therefore incorporates pump cleanout ports and includes a fluid trap to reduce the risk of pump damage from moisture or fluid contamination.
This is particularly useful when the calibrator is used in field environments where contamination of the pressure source is a concern.
Key Specifications
Pressure ranges: 30 / 150 / 300 psi
Maximum internal pressure range: up to 300 psi / 20 bar
Pressure accuracy: ±0.025% FS, 6 months
mA measurement: 0–24 mA
mA source/simulation: 0–24 mA
mA accuracy: ±0.015% reading ±2 counts
mA resolution: 0.001 mA
DC voltage measurement: 0–30 V
Voltage accuracy: ±0.015% reading ±2 counts
Loop power: 24 V DC
Temperature measurement: -50 to +150 °C with optional Pt100 RTD
Pressure modules: Compatible with Fluke 750P series
Pump: Integrated electric pump
Pump control: Programmable pressure limit
Pressure switch test: Yes
Display: Large backlit display
Battery: 8 × AA alkaline batteries
Weight: Approximately 1.2 kg with holster
Operating temperature: -10 to +50 °C
Fluke 719Pro vs. Fluke 718Ex
The Fluke 718Ex is primarily designed around intrinsically safe pressure calibration for hazardous areas, while the 719Pro focuses on high-accuracy electric pressure generation and multifunction pressure calibration.
In simple terms:
Fluke 718Ex → Intrinsically safe pressure calibration
Fluke 719Pro → High-accuracy electric pressure calibration
The 719Pro is the stronger choice when electric pressure generation, higher precision and integrated mA calibration are the main requirements. For hazardous-area applications, the appropriate Ex-certified instrument must be selected according to the site's certification requirements.
Fluke 719Pro vs. Fluke 719
The 719Pro builds on the standard 719 platform with a stronger emphasis on precision calibration and multifunction testing.
The 719Pro provides:
Higher 0.025% FS pressure accuracy
mA measurement, sourcing and simulation
24 V loop power
Optional RTD temperature measurement
Compatibility with 750P pressure modules
Programmable pump limits
Fluid trap and pump cleanout features
This makes it better suited to reference-class pressure transmitter calibration and more demanding process instrumentation work.
Typical Applications
Pressure Instrumentation
Pressure transmitter calibration
Pressure gauge verification
Pressure switch testing
Pressure sensor testing
Process Control
4–20 mA pressure transmitter testing
Loop calibration
Zero and span verification
Process instrument commissioning
Industrial Maintenance
Preventive maintenance
Field calibration
Troubleshooting
Multi-point transmitter verification
Precision Calibration
Reference-class transmitter calibration
High-accuracy pressure measurement
Pressure-to-current transmitter testing
FAQ
Q: What is the Fluke 719Pro used for?
A: The Fluke 719Pro is used for high-accuracy pressure calibration, pressure transmitter testing, pressure switch testing and 4–20 mA loop calibration.
Q: Does the Fluke 719Pro have an electric pump?
A: Yes. It has an integrated electric pump designed for one-handed pressure calibration.
Q: What pressure ranges are available?
A: The 719Pro is available in 30 psi, 150 psi and 300 psi versions, with ranges extending from approximately -0.8 bar vacuum to the selected positive-pressure range.
Q: Can the Fluke 719Pro measure 4–20 mA?
A: Yes. It measures 0–24 mA with 0.001 mA resolution and can also source and simulate mA signals.
Q: Does the Fluke 719Pro provide loop power?
A: Yes. It provides 24 V DC loop power, rated at 24 mA at 24 V.
Q: Can the pressure range be extended?
A: Yes. Compatible Fluke 750P pressure modules can extend the measurement range beyond the internal pressure sensors.
