Data Sheet

Technical Data
Product highlights
The 721 and 721Ex can be configured by select-
ing 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).
•
Intrinsically Safe (721Ex version only) – IECEx
and Atex Ex ia IIB T3 Gb (Zone 1)
•
Ideal for gas flow calibration (custody transfer)
applications
•
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
•
Pt100 RTD input for temperature measurement,
(probe optional)
•
Measures 4 to 20 mA signals
•
Internal 24 V loop power supply can power a
transmitter under test (721 models only)
•
Measure up to 30 V dc, check 24 V loop power
supplies (721 models only)
•
Extend pressure measurement range with
connection to one of 50 external 750 series
pressure modules from 0 to 1 inH20 to 10,000
psi (2.5 mBar to 690 bar) (721 models only)
•
Large backlit graphic display can display up to
three inputs simultaneously
•
Store five instrument setups for recall and use
Fluke 721 and 721Ex
Precision Pressure
Calibrators
Pressure calibration and temperature
measurement for custody transfer
applications
The Fluke 721 and 721Ex Precision Pressure Calibrators
with dual isolated pressure sensors are the ideal tool
for gas custody transfer applications allowing you to
take simultaneous static and differential pressure mea-
surements with a single tool.