The model 3689-A Precision Pressure Standard system is based on a digital pressure transfer standard that is unmatched in the industry for its accuracy: ± 0.025% IV (Indicated Value). Auto-ranging circuitry enables step-less readings from vacuum to 10,000 psi without input from the operator, preventing damage to the instrument due to the over-pressurization of the transducers. The Model 3689-A Precision Pressure Standard displays direct reading measurements using a wide range of units, including psi, in-Hg, kPa, bar, in-H20, and ft./seawater. Three measurement modes are available: absolute mode, gauge mode, and vacuum mode.
Operating Range: 30 in-Hg vacuum; 0 to 10,000 psig
Input Power:
Voltage: 115 VAC, 50 to 60 Hz
Fuse Type: 3 AG, 2 Amps, Slo-Blo
Fluid Medium: Dry Nitrogen or inert gas
Accuracy, Pressure:
0 to 4 psig: ±0.001 psi
4 to 10,000 psig: ±0.025% IV (indicated value or reading)
Accuracy, Vacuum:
0 to 30 in-Hg: ±0.025% IV (indicated value or reading) or ±0.002 in-Hg, whichever is greater
Accuracy, Absolute:
0.5 to 35 in-Hg: ±0.002 in-Hg
35 to 200 in-Hg: ±0.025% IV (indicated value or reading)
Resolution:
Below 100 psig: Display 0.001 psig, Printer 0.0001 psig
100 to 1,000 psig: Display: 0.01 psig, Printer 0.001 psig
1,000 to 10,000 psig: Display: 0.1 psig, Printer 0.01 psig
Case Dimensions & Weight:
18”W x 12”H x 11”D
35 lbs.
