The AMETEK PK II Pneumatic Deadweight Tester is a primary standard that produces a pressure by applying force (weight set) over area (the ceramic ball and nozzle). The PK II tester is NIST traceable and accurate to +0.015% using stainless steel weights calibrated to international standard gravity at 980.665cm/sec2. The PK II tester is self-regulating with accuracy independent of the operator. The tester utilizes a virtually frictionless ceramic ball floating on a layer of air within a stainless steel cylinder. The PK II tester features a cast-metal base with a quick levelling system for field or lab setup. The unit may also be mounted to an optional tripod for more convenient setup. The tester may be operated with the cover opened or closed. Weights are located in foam-protective slots in the case. Special Calibrations/Local Gravity The PK II tester are optionally available with an accuracy of +0.015%. Calibration to your local gravity is available for all stainless steel models. Please provide your gravity when ordering Gas Industry Models Standard testers in inches or cm of H2O are calibrated reference water columns at 20oC (68oF) per ISA recommended practices. Calibration to reference water columns at 68 °F per AGA standards is available | 
Test & Calibration 
