The
Dead Weight Tester is generally regarded as the most accurate method in
calibration of pressure instruments, and is either used as a primary or
secondary pressure standard.
Application - Calibration of Pressure Gauges, Transmitters, Transducers, Transfer Standards, Recorders, etc; direct, high accuracy measurement of pressure in system and process.
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Accuracy: | + 0.1%, + 0.06%, + 0.03% | ||
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Ranges: | Various models from 0-1000 kg/cm2. Both single and double range. | ||
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Units: | kg/cm2, bar, kPa, MPa, lb/in2, kN/m2 or any other unit. | ||
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Operating Medium: |
Water or oil or Sebacate oil as the operating fluid as per Applications. Air for Vacuum Testers. |
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Uncertainty: | Better than + 0.015%. | ||
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Design: | Top loading type weight carrier/Bell Type with over hanging weights. | ||
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Piston Material: | L.P: High Chromium Steel.
(artificially aged) H.P: High Chromium Steel / Tungsten carbide. |
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Cylinder Material: | Hardened martenistic Steel / Tungsten carbide. | ||
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Type of Pump: |
Built - in screw pump of adequate capacity to generate pressure by turning a handle permitting easy and accurate settings. |
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Weight Material: | MS Phosphated / Stainless Steel Non - magnetic AISI 304. | ||
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Electrical Motor Rotation: | Aapproximately 30 R.P.M
for free piston and weights (as an optional) |
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Certification: | Traceable to international standards. | ||
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Each unit includes (as standard accessories) a gauge connector of 1/2" BSP and complete with one set of weights in a storage box, 1 dust cover, instruction manual, 1 tin of oil (1/2 litre) and a tool box/bag containing, angle connection for testing back mounting gauges 1 pointer puller, 1 pointer punch, adapters of M 20 x 1.5, 1/4" & 3/8" BSP (many other adaptor sizes also available), 4 spanners, 1 Allan Key, 1 screw driver and 1 set of spare seals. |
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| Various Models: Ravika Engineers offers a wide range of Dead Weight Pressure Testers depending on the operating pressure. | ||||