Fluke 721Ex Precision Pressure Calibrator

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

This precision pressure calibrator has many useful features, including data logging, pass/fail testing, and calibration management. It is compatible with Fluke Calibration software, allowing users to create and run automated calibration procedures, generate reports, and manage calibration data.

Overall, the Fluke 721Ex Precision Pressure Calibrator is a reliable and accurate tool for measuring and calibrating pressure in hazardous environments. The Fluke 721Ex is rugged design, integrated electric pump, and advanced features make it a valuable asset to professionals in the oil and gas industry as well as other industries requiring precise pressure measurement.

Best Practices for Fluke Pressure Calibration Setup

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Fluke-721Ex Features

• 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
• Pt100 RTD input for temperature measurement, (probe optional)
• Switch test on both pressure inputs
• Pressure displayed in the user’s choice of 19 engineering units
• The large backlit graphic display can display up to three inputs simultaneously
• Store five instrument setups for recall and use

Fluke-721Ex Precision Pressure Calibrator specifications:

• Instrument setup recall: Last used on power-up
• Environmental: Operating temperature -10°C to +45°C
  Storage temperature (without batteries) -20°C to +60°C
• Altitude: 2,000 m
• Ingress protection: IP-40
• Power requirements: 6.0 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)
• Weight: 03539 kg (1 lb 3 oz)
• Connectors/ports pressure: Two, 1/8 in NPT, 700P Series Pressure Module; RTD Probe
• 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

Fluke-721Ex Accessories

• Fluke 700LTP-1 Low-pressure Test Pump
• Fluke 71XTrap Liquid and Dirt Trap for 718 and 719Pro
• Fluke 700ILF In-Line Filter

Related Products 

• Fluke 718ex
• Fluke pressure gauge 700G31