Pneumatic deadweight tester 789 series

hydraulic

A range of very accurate and stable pressure standards that is commonly used across industries to calibrate pressure measurement devices and instrumentation like pressure transmitters and gauges. Models are available for pneumatic pressure calibration up to 120 bar, and hydraulic to 2600 bar. All units are top loading for ease of use and weight sets are interchangeable for hydraulic models. The hydraulic models also have a base that features a dual area screwpress which allows low pressure priming and high pressure control. Each model is a robust design, with a fully hardened and stabilised tool steel piston. This unit gives extremely good sensitivity for high accuracy calibration, yet is tough enough for regular use in a workshop environment. Features • 7890 Hydraulic DWT: 1 to 700 bar • 7891 Hydraulic DWT: 1 to 1200 bar • 7892 Hydraulic DWT: 1 to 2600 bar • 7893: Pneumatic DWT: 1 to 120 bar • Simple operation primary standards • 0.015 % of rdg standard accuracy • Up to 0.006 % of rdg premium accuracy • Dual range on hydraulic models