The Fluke 721 and 721Ex Precision Pressure Calibrators are tailor-made for gas custody transfer and other high-stakes applications, delivering precise pressure and temperature measurements with a single, robust tool. Equipped with dual isolated stainless steel sensors, they simultaneously measure static and differential pressure, with low-pressure options of 16 psi or 36 psi and high-pressure ranges up to 5000 psi, boasting 0.025% accuracy (0.035% for 5000 psi).
These calibrators also handle 4-20 mA, 0-30 VDC, and Pt100 RTD temperature measurements (with optional probe), while the 721 model’s 24 V loop power supply drives transmitters during tests. The 721Ex is intrinsically safe (IECEx/Atex Ex ia IIB T3 Gb), perfect for hazardous environments.
A large backlit display shows up to three inputs at once, and compatibility with over 50 750P series modules (721 only) extends pressure ranges from 0-1 inH2O to 10,000 psi. With five storable setups, a 35-hour battery life from four AA batteries, and a rugged IP-40 design, these calibrators are a reliable, versatile choice for process professionals needing accuracy and efficiency in demanding settings.
