As an in-process gauge or portable calibrator, the hand-held Model AI delivers long-lasting performance with enhanced accuracy. Accuracy of 0.05 % coupled with an enhanced resolution, 4½-digit display makes this unit an excellent transfer standard for calibrating pressure measuring equipment. The AI is rugged and features high/low pressure capture with a field-adjustable update rate from three-to-ten times per second. These units are manufactured from stainless steel and use sensor technology which has no moving parts, requires little recalibration and has excellent overpressure tolerance. NEMA 4 construction provides EMI and RFI protection. Units of measure are field-selectable, and the unit is offered with gage, absolute, vacuum, or compound reference. The Model AIW is powered by one or two common 9 V alkaline batteries. The Model AIV is powered by an 11 Vdc to 32 Vdc power supply. Intrinsically safe systems limit the thermal and electrical energy to the hazardous area to help prevent ignition.
Division 1: present or likely to be present in normal operation Division 2: not present in normal operation
Group A: Acetylene Group B: Hydrogen Group C: Acetaldehyde, Ethylene, Methyl Ether Group D: Acetone, Gasoline, Methanol, Propane Group E: Metal dust Group F: Carbon dust Group G: Grain dust