The Fluke 721-3615 is a precision dual sensor pressure calibrator designed for demanding industrial applications. With two isolated stainless steel pressure sensors covering 36 PSIG and 1500 PSIG ranges, it delivers exceptional 0.025% accuracy for critical gas flow calibration and custody transfer tasks. This calibrator also measures temperature via a Pt100 RTD input (probe optional) and 4-20 mA signals, while its internal 24V loop power supply can power transmitters under test. The large backlit graphic display simultaneously shows up to three inputs, and the device stores five instrument setups for quick recall. Built for field use, it includes a soft case, four AA batteries, manual, traceable calibration certificate, and test leads.
Key Features & Highlights
- Dual isolated stainless steel pressure sensors: 36 PSIG and 1500 PSIG with 0.025% accuracy
- Ideal for gas flow calibration (custody transfer) applications
- Pt100 RTD input for temperature measurement (probe optional)
- Measures 4-20 mA signals and up to 30 V DC; checks 24 V loop power supplies
- Internal 24 V loop power supply can power a transmitter under test
- Extend pressure measurement range with external 700 series pressure modules (29 ranges)
- Large backlit graphic display shows up to three inputs simultaneously
- Stores five instrument setups for recall and use
Applications
The Fluke 721-3615 is essential for HVAC technicians, instrumentation engineers, and maintenance professionals who require accurate pressure calibration in gas flow measurement, custody transfer, and process control environments. Its dual sensors and versatile measurement capabilities make it a reliable tool for field calibration and troubleshooting.
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