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Dwyer-Dead Weight Tester-HJiDwyer-HL Tester And HLG Gauge-Hli

Dwyer-Deadweight Tester-RKi

( Dwyer )

General

The AMETEK RK Pneumatic Deadweight Tester is a primary standard that produces a pressure by applying force (weight set) over area (the ceramic ball and nozzle). The RK tester is NIST traceable and accurate to +0.05% using stainless steel weights calibrated to international standard gravity at 980.665cm/sec2. +0.025% and +0.015% accuracy are also available.

The RK tester is self-regulating with accuracy independent of the operator. The tester utilizes a virtually frictionless ceramic all floating on a layer of air within a stainless steel cylinder.

The RK 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.

 

Specifications:

Accuracy

+0.05%, +0.025%, +0.015% of indicated reading. Below

1PSI accuracy is +0.025%.

Repeatability

0.005% of output reading

Temperature Coefficient

0.00167% of output per °C based on 23°C

Maximum Supply Pressure

450 PSIG Instrument quality air per ISA Quality Standard S 7.3.

Minimum Supply Pressure

30 PSIG or 150% of output pressure

Flow Rate

1 SCFH at 4”H2O output

60 SCFH at 300 PSIG output

Connections

0.125-inch NPT female

Weight

Tester Only

18 to 31.5 lbs (8.2 - 14.3kg)

Weights

17.5 to 61.5 lbs (8.0 - 30.0kg)

Shipping Dimensions (L x W xH)

Tester

15.0 x 9.5 x 8.0-inches

Weights

8.5 x 12.0 x 11.5-inches