Fluke 721EX-3650 Dual Sensor Pressure Calibrator
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Fluke 721EX-3650 is an intrinsically safe dual sensor pressure calibrator with 0.025-0.035% accuracy, ideal for custody transfer and field calibration with ranges to 5000 psi.
Product details
| Model | 721EX-3650 |
| Manufacturer | Fluke |
| Category | Pressure Calibrators |
| Availability | Made to order |
Description
Overview
The Fluke 721EX-3650 is an intrinsically safe dual sensor pressure calibrator designed for field and laboratory calibration of pressure instruments. Certified for Zone 1 hazardous areas under IECEx and ATEX standards, it provides two isolated stainless steel pressure sensors with 0.025% and 0.035% accuracy respectively, making it ideal for custody transfer and precision pressure measurement applications in regulated environments.
Key Features
- Intrinsically safe certification (IECEx and ATEX Ex ia IIB T3 Gb, Zone 1)
- Two independent isolated stainless steel pressure sensors
- Sensor 1: -14 to +36 psi (-0.97 to 2.48 bar), 0.025% accuracy, 0.001 psi resolution
- Sensor 2: 0 to +5000 psi (0 to 345 bar), 0.035% accuracy, 0.1 psi resolution
- Pressure measurements in 19 engineering unit formats
- Pt100 RTD input for temperature measurement (optional probe)
- 4-20 mA signal measurement capability
- Internal 24 V loop power supply for transmitter powering
- DC voltage measurement up to 30 V
- Large backlit graphic display showing up to three inputs simultaneously
- Five stored instrument setups for quick recall and configuration
- Expandable range with up to 50 optional external pressure modules (0 to 10,000 psi)
Applications
- Gas flow metering and custody transfer calibration
- Field pressure instrument calibration and verification
- Zone 1 hazardous area operations
- Process instrumentation testing and diagnostics
- Regulatory compliance and documentation
Specifications
| Sensor 1 Range | -14 to +36 psi (-0.97 to 2.48 bar) |
| Sensor 2 Range | 0 to +5000 psi (0 to 345 bar) |
| Sensor 1 Accuracy | 0.025% of full scale |
| Sensor 2 Accuracy | 0.035% of full scale |
| Sensor 1 Resolution | 0.001 psi, 0.0001 bar |
| Sensor 2 Resolution | 0.1 psi, 0.01 bar |
| Pressure Unit Formats | 19 engineering units |
| Temperature Input | Pt100 RTD (optional probe) |
| Current Measurement | 4 to 20 mA |
| Voltage Measurement | Up to 30 V dc |
| Loop Power Supply | Internal 24 V |
| Certification | IECEx and ATEX Ex ia IIB T3 Gb (Zone 1) |
| Display | Backlit graphic display (up to 3 inputs) |
| Setup Storage | 5 instrument setups |
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Fluke 721EX-3650 Dual Sensor Pressure Calibrator
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