Fluke 718EX Intrinsically Safe Pressure Calibrator

Overview

The Fluke 718EX is designed for pressure calibration in hazardous (explosion-risk) environments. It is ATEX II 1G Ex ia IIC T4 certified, making it safe for use in gas zones. The device includes an internal pressure/vacuum hand pump with fine adjustment and bleed valve, and can measure pressure using its internal sensor or external intrinsically safe 700PEx modules for extended ranges.

With an internal sensor, the Fluke 718EX achieves 0.05 % of full-scale accuracy. When paired with compatible 700PEx modules, it can measure pressures up to 3,000 psi (≈200 bar). It also supports current (mA) measurement up to 24 mA with 0.02 % accuracy, making it capable of calibrating transmitters. The unit offers functions such as pressure switch test, min/max/hold, multiple engineering units, and simultaneous display of pressure and current.

This calibrator is rugged, compact, and tailored for field use under hazardous conditions, combining safety and performance.

Key Features

• ATEX II 1G Ex ia IIC T4 (intrinsically safe) certification

• Internal pressure/vacuum pump with fine adjust and bleed valve

• Internal sensor ranges: −12 psi to 30 / 100 / 300 psi (multiple model variants)

• 0.05 % of full-scale accuracy with internal sensor

• Supports external intrinsically safe Fluke 700PEx modules to measure up to 3,000 psi / ~200 bar

• Current measurement up to 24 mA with 0.02 % accuracy and 0.001 mA resolution

• Pressure switch test function

• Min, Max, Hold functionality

• Simultaneous display of pressure and mA

• Wide selectable units (psi, kPa, bar, in H₂O, etc.)

• Compact and rugged for field use

• Long battery life (4 to 20 hours depending on usage)

• Safety design: overpressure protection consistent with module ratings

• Zeroing modes (gauge, differential, absolute)

Applications

• Calibration of pressure transmitters, gauges, and switches in hazardous areas

• Field maintenance and verification in process plants, petrochemical, oil & gas, refining

• Ex-zone calibration tasks where intrinsically safe equipment is mandatory

• Pressure loop verification (pressure ↔ current)

• Pressure switch setpoint testing

• Portable calibration on-site in explosion-risk atmospheres

Technical Specifications

Package Contents

A typical Fluke 718EX kit includes:

• Fluke 718EX calibrator (one of 30G / 100G / 300G)

• Protective red holster

• TL75 test leads

• AC72 alligator clips

• User manual (multi-language)

• Calibration certificate / control drawing

• Accessories as required (e.g. connectors, adapters)

Call to Action

Equip your team with the Fluke 718EX intrinsically safe pressure calibrator today for safe, accurate, and reliable field calibration in hazardous areas. Contact us now for pricing, calibration support, or to request a demonstration.

【FAQ】

Q1: What makes the Fluke 718EX intrinsically safe?
It is certified ATEX II 1G Ex ia IIC T4 and built for use in explosion-risk gas zones, ensuring it meets strict safety requirements for hazardous environments.

Q2: What is the internal sensor accuracy of the 718EX?
It achieves 0.05 % of full-scale accuracy when using its internal pressure sensor.

Q3: Can it support higher pressure ranges beyond its internal sensor?
Yes — via compatible intrinsically safe Fluke 700PEx modules, it can reach up to ~200 bar (≈ 3,000 psi).

Q4: Does the 718EX support mA calibration?
Yes — it measures current up to 24 mA with 0.02 % accuracy and 0.001 mA resolution, useful for transmitter loop calibration.

Q5: What functions does it offer for switch testing?
It supports pressure switch testing modes, capturing set/reset/deadband values, along with min, max, and hold operations.