WIKA CPB3800 Series Hydraulic Deadweight Tester

The The DH-Budenberg CPB3800 deadweight tester features an accuracy of 0.025% and compact size making it ideally suited to on-site, field calibration as well as service and maintenance of pressure transmitters and mechanical gauges. With integrated (hydraulic) pressure generation and a purely mechanical measuring principle, there is no electrical power required for operation.

The pressure is set via an integrated, finely adjustable, precision spindle pump. As soon as the measuring system reaches equilibrium, there is a balance of forces between pressure and the force generated by the mass applied over the area of the piston. The quality of the piston / cylinder system ensures that this pressure remains stable over several minutes so that the device under test can be calibrated or adjusted.

In addition, the DH-Budenberg CPB3800 sets itself apart through its clearly arranged control elements. The built-in spindle pump is very easy to operate even at very high pressures, and features a threaded spindle which moves within the pump body. The spindle pump handle does not move in or out of the body of the pump as the handle is turned, therefore there are no cantilever forces or changes in the overall size of the base as the pressure is changed.

Deadweight testers are the most accurate instruments for the calibration of electronic or mechanical pressure instruments. The CPB3800 uses precisely machined, high-quality materials, resulting in high accuracy and an excellent long-term stability of five years.

Features:
Primary standard for pressure ranges up to 16,000 psi (1000 bar) hydraulic
Reference instrument for the test, adjustment and calibration of pressure measuring instruments in factories and
      calibration laboratories
Self-contained, complete system suitable for on-site measurements and calibrations
Uncertainty: to 0.025 % of reading
High long-term stability with a recommended recalibration cycle of 5 years
Masses manufactured from stainless steel and aluminum
Local gravity adjustment possible at no additional charge
Compact dimensions

What's In The Box:
(1) Base
(1) Dual-area spindle pump for filling, pressure generation and fine pressure adjustment
(1) Piston connection with G ¾ B male thread
(1) Test item connection with G ½ female thread, loose union connection
(1) Adapter set for test item connection selectable from 3 different sets:
Adapter set “BSP” G ½ male on G ⅛, G ¼, G ⅜ and G ½ female
Adapter set “NPT” G ½ male on ⅛ NPT, ¼ NPT, ⅜ NPT and ½ NPT female
Adapter set “metric” G ½ male on M12 x 1.5 and M20 x 1.5 female
(1) Piston-cylinder system
(1) Mass set manufactured to standard gravity (9.80665 m/s²)
(1) VG22 mineral oil (0.5 litre)
(1) Tool and maintenance set consisting of
1 hexagon wrench key 3 mm A/F 2 x 30 mm A/F open-ended spanners
1 spirit level 4 level plates 1 bag of seals 1 G ½ (½” BSP) angle connection
1 pointer press-on tool
1 pointer remover
1 test item connection
(1) Operating instructions in German and English language
(1) Factory calibration certificate