The HydraLite Hydraulic Deadweight Tester is a primary standard that features a re-entrant type measuring piston and cylinder assembly that helps maintain accuracy as the test pressure increases. The HL Series tester is designed for rapid interchanging between high and low pistons and is NIST traceable and accurate to ±0.05% using non-magnetic die-cast alloy or aluminum weights calibrated to international standard gravity at 9.80665 m/s2. A compact screw pump with ratchet handle is easy-to-use. The unit is also available as a deadweight gauge (HLG) for accurate measurements and use as a comparison standard.
Specifications
FUNCTIONAL SPECIFICATIONS Model:..................................................................... HydraLite HL and HLG Type:.......................................................................Hydraulic, piston gauge Pressure range:.................... to 22,500 kPa / 3,000 psi (model dependent) Accuracy (12 months):....................................................... to ±0.050% rdg Increments (low - min):...................0.1 psi, 0.005 kg/cm2, 5 mbar, 0.5 kPa Increments (high - min):...............0.5 psi, 0.025 kg/cm2, 25 mbar, 2.5 kPa Gravity:..............................................9.80665 m/s2 (international standard) Piston/cylinders:................................................ Single or dual (as ordered) Columns:............................................................................................ Single Weight sets:...................................................................Single (as ordered) Pressure source:............................................Screwpump, hand-actuated, ........................................................... hydraulic pump (tester models only) Medium:........................................................................................... AAA oil Reservoir capacity:...............................0.24 l /14.4 in3 (tester models only) Wetted surfaces:..................... 300 series stainless steel, brass, aluminum O-rings:.............................................................................................Buna N Test connections:................................................... 1/4” NPT and 1/2” NPT Weight material:.......................... Hard, non-magnetic alloy and aluminum Engineering units:....................................................... psi, kg/cm2, bar, kPa Cases:.............................................................................. 1 (self-contained) PHYSICAL SPECIFICATIONS Tester size (L x W x H):..................... 22.9 x 22.9 x 25.4 cm / 9 x 9 x 10 in Weight:..................................................................................20.4 kg / 45 lb Configuration:................................................ Single or dual piston/cylinder ............................................single column hydraulic deadweight or gauge Delivery:..........................Pump (tester), piston(s), weight set, tools, gauge ...........................post, adapters, manual, and NIST traceable certification
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