Fluke 721 Precision Pressure Calibrator

For gas custody transfer applications is the Fluke 721 Precision Pressure Calibrator. With dual isolated pressure sensors, it allows you to take simultaneous static and differential pressure measurements.

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Pressure Calibration and Temperature Measurement for Custody Transfer Applications

The ideal tool for gas custody transfer applications is the Fluke 721 Precision Pressure Calibrator. With dual isolated pressure sensors, it allows you to take simultaneous static and differential pressure measurements with a single tool.

The 721 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). 

  • Ideal for gas flow calibration (custody transfer) applications
  • Two isolated, stainless steel, pressure sensors with 0.025 % accuracy
  • 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
  • Measure up to 30 V dc, check 24 V loop power supplies
  • Extend pressure measurement range with connection to external 700 series pressure modules (29 ranges)
  • Large backlit graphic display can display up to three inputs simultaneously
  • Store five instrument setups for recall and use



Industrial Technical Services is an Authorized Fluke Distributor. We stock Fluke products in our Mississauga location. 

Industrial Technical Services from Mississauga, Ontario is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels.

 
Specification

Specifications 1-Year
Fluke-721-1601RangeResolutionAccuracy
Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
-12 psi to +100 psi,
-0.83 bar to 6.9 bar
0.01 psi,
0.0001 bar
0.025% of full scale
Fluke-721-1603Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
-12 psi to +300 psi,
-0.83 bar to 20 bar
0.01 psi,
0.001 bar
0.025% of full scale
Fluke-721-1605Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
-12 psi to +500 psi,
-0.83 bar to 34.5 bar
0.01 psi, 
0.001 bar
0.025% of full scale
Fluke-721-1610Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi, 
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +1000 psi,
0.00 bar to 69 bar
0.1 psi, 
0.001 bar
0.025% of full scale
Fluke-721-1615RangeResolutionAccuracy
Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +1500 psi,
0.00 bar to 103.4 bar
0.1 psi, 
0.001 bar
0.025% of full scale
Fluke-721-1630Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +3000 psi,
0.00 bar to 200 bar
0.1 psi, 
0.01 bar
0.025% of full scale
Fluke-721-1650Low pressure sensor
-14 psi to +16 psi,
-0.97 bar to 1.1 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +5000 psi, 
0.00 bar to 345 bar
0.1 psi, 
0.01 bar
0.035% of full scale
Fluke-721-3601RangeResolutionAccuracy
Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
-12 to +100 psi, 
-0.83 bar to 6.9 bar
.01 psi, 
0.0001 bar
0.025% of full scale
Fluke-721-3603Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
-12 psi to +300 psi, 
-0.83 bar to 20 bar
0.01 psi, 
0.001 bar
0.025% of full scale
Fluke-721-3605Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
-12 psi to +500 psi, 
-0.83 bar to 34.5 bar
0.01 psi, 
0.001 bar
0.025% of full scale
Fluke-721-3610RangeResolutionAccuracy
Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +1000 psi, 
0.00 bar to 69 bar
0.1 psi, 
0.001 bar
0.025% of full scale
Fluke-721-3615Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +1500 psi, 
0.00 bar to 103.4 bar
0.1 psi, 
0.01 bar
0.025% of full scale
Fluke-721-3630Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +3000 psi, 
0.00 bar to 200 bar
0.1 psi, 
0.01 bar
0.025% of full scale
Fluke-721-3650Low pressure sensor
-14 psi to +36 psi, 
-0.97 bar to 2.48 bar
0.001 psi,
0.0001 bar
0.025% of full scale
High pressure sensor
0 psi to +5000 psi, 
0.00 bar to 345 bar
0.1 psi, 
0.01 bar
0.035% of full scale
General Specifications
Instrument setup recallLast used on power-up
EnvironmentalOperating temperature -10°C to +50°C
Storage temperature (without batteries) -20°C to +60°C
Altitude2,000 m
Ingress protectionIP-40
Power requirements6.0 V DC
Battery life>35 hours, typical usage
Batteries required(4) Standard AA cells
Dimensions (H x W x D)7.9 x 4.3 x 2.3 in (20 x 11 x 5.8 cm)
Weight03539 kg (1 lb 3 oz)
Connectors/ports pressureTwo, 1/8 in NPT, 700P Series Pressure Module; RTD Probe
Electrical and Temperature Measurement 1-Year
FunctionRangeResolutionAccuracy
mA measure0 to 24 mA0.001 mA±0.015% of rdg
±0.002mA
V DC measure0 to 30 V DC0.001 V±0.015% of rdg
±0.002 V
Temperature measure (RTD/ Ohms)¹-40°C to 150°C
(-40°F to 302°F)
0.01°C, 0.01°F±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 power supply24 VN/A24 mA @ 24 V
¹Temperature measurement requires optional Fluke-720RTD Pt-100 RTD probe available as an accessory
Temperature Effect
No effect on accuracy on all functions from 15°C to 35°C
Add ±0.002% F.S./°C for temps outside of 15°C to 35°C
Available Pressure 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

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