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Fluke 721 Pressure Calibration Instruments

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Product overview: Fluke 721 Precision Pressure Calibrator provides pressure calibration and temperature measurement for custody transfer applications

What's in the box:

  • Precision pressure calibrator with dual isolated sensors for gas flow calibration (custody transfer) applications
  • Features two isolated, stainless steel, pressure sensors with 0.025% accuracy
  • Includes Pt100 RTD input for temperature measurement (probe optional)
  • Measures 4 to 20 mA signals
  • Provides internal 24 V loop power supply to power a transmitter under test

Specifications: Fluke 721 Pressure Calibration Instruments

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 +16psi,
-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
1. Temperature 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