Ask an Expert

Fluke 721EX Series Dual Sensor Pressure Calibrators

Model: 721EX Series

Range: 16 psig
Range: 36 psig

Ideal for gas flow calibration (custody transfer) applications allowing you to take simultaneous static and differential pressure measurements with a single tool. Intrinsically Safe - IECEx and Atex Ex ia IIB T3 Gb (Zone 1).

Ordering Information

Help with Ordering

Fluke 721EX Series Offers

Features

Can be configured by selecting either a 16 psi (1.1 bar) or 36 psi (2.48 bar) low pressure sensor then add any of 7 high pressure ranges including 100, 300, 500, 1000, 1500, 3000 or 5000 psi (6.9, 20, 24.5, 69, 103.4, 200, 345 bar)
Two isolated, stainless steel, pressure sensors with 0.025% accuracy
Switch test on both pressure inputs
Pressure displayed in the user's choice of 19 engineering units: psi, bar, mbar, kPa, kgcm², cmH₂O @ 4°C, cmH2O @ 20°C, mH₂O @ 4°C, mH₂O @ 20°C, inH₂O @ 4°C, inH₂O @ 20°C, inH₂O @ 60°F, mmHg @ 0°C, inHg @ 0°C, ftH₂O @ 4°C, ftH₂O @ 20°C, ftH₂O @ 60°F
Precision temperature measurement with optional RTD probe
Measures 4 to 20 mA signals
Large backlit graphic display shows up to three inputs simultaneously
Store five instrument setups for recall and use

Application Selection Guide


Model number	754	721/721Ex	719Pro	719	718	717	700G	3130	2700G	Dead-weight Testers
Application
Calibrating pressure transmitters (field)	●	●	Ideal	●	●	●		●
Calibrating pressure transmitters (bench)	●	●	●	●	●	●		Ideal		●
Calibrating HART Smart transmitters	Ideal
Documenting pressure transmitter calibrations	Ideal
Testing pressure switches in the field	Ideal	●	●	●	●	●		●
Testing pressure switches on the bench	●	●	●	●	●	●		Ideal
Documenting pressure switch tests	Ideal
Testing pressure switches with live (voltage) contacts	Ideal
Gas custody transfer computer tests	●	Ideal	●
Verifying process pressure gauges (field)	Ideal	●	●	●	●	●	●
Verifying process pressure gauges (bench)	●	●	●	●	●	●		●	●	Ideal
Logging pressure measurements	●						Ideal		●
Testing pressure devices using a reference gauge									Ideal
Hydrostatic vessel testing							Ideal
Leak testing (pressure measurement logging)	●						Ideal

Pressure Calibration Selection Guide

Fluke 721EX Series Specifications

Pressure Range	Available from 16 to 36 psi (1.1 to 2.48 bar) with 7 high pressure ranges including 100, 300, 500, 1000, 1500, 3000 or 5000 psi (6.9, 20, 24.5, 69, 103.4, 200, 345 bar)
Resolution	0.001 psi (0.0001 bar)
Accuracy	±0.025% f.s.
Current Range	0 to 24mA
Resolution	0.001mA
Accuracy	±0.015% of rdg ±0.02 ohms; ±0.1°C (±0.2°F) ±0.25°C (±0.45°F) combined uncertainty when using 720 RTD probe accessory
Loop Supply Range	24V
Temperature Range	-40 to 150°C (-40 to 302°F)
Connectors/Ports	Two, 1/8" NPT, 750P Series Pressure Module RTD Probe
Power Supply	(4) standard AA batteries
Dimensions	7.9 x 4.3 x 2.3 (20 x 11 x 5.8 cm)
Weight	035 kg (1 lb 3 oz)

What's included with the Fluke 721EX Series

721EX-1601 Dual Sensor Pressure Calibrator
Test leads
4 AA batteries
Manual
Calibration certificate
Soft case

Accessories

Click on a category to view a selection of compatible accessories with the Fluke 721EX Series Dual Sensor Pressure Calibrators.

Carrying Cases

Fluke TB25 Tool Bucket Organizer Bag, 5.2 gal TB25

Durable and rugged, this tool bucket organizer bag has a 5.2-gallon capacity that can be relied on to protect and safely carry a variety of test tools and accessories. With its waterproof hard bottom shell, this versatile organizer has a total of 28 pockets that can fit hand tools, DMMs, clamp meters, test probes, and more.