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CPB 5600DP -- Pressure Balance Differential Pressure Version

Category: PRESSURE, CALIBRATORS

Model: Dead Weight Tester, Dead Weight Tester

Avaibility: AVAILABLE

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Proven primary standard

Pressure balances (dead-weight testers) are the most accurate instruments available on the market for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable a very small measurement uncertainty, in conjunction with an excellent long-term stability. The pressure balance (dead-weight tester) has therefore been used for years in factory and calibration laboratories in industry, national institutes and research laboratories.

Stand-alone operation

Due to its integrated pressure generation and the pure mechanical measuring principle, the model CPB5600DP is ideal for on-site use for maintenance and service.

Basic principle

Pressure is defined as the quotient of force and area. The core component of the CPB5600DP is therefore a very precisely manufactured piston-cylinder system, onto which a mass load is applied in order to generate the individual test points.

The mass load is proportional to the target pressure and this is achieved through optimally graduated masses. As stand-ard, these masses are manufactured to the standard gravity (9.80665 m/s?2;), though they can be adjusted to a specific location and also DKD/DAkkS calibrated.

Specifications

Model CPB5600DP

PISTON-CYLENDER SYSTEMS

Version

pneumatic

Measuring range 1)

bar 2)

0.03 … 2

0.2 … 10

0.4 … 50

0.4 … 100

Required masses

kg

10

10

10

20

Smallest step

bar 3)

0.01

0.05

0.25

0.25

Sensitivity 4)

mbar

0.002

0.01

0.05

0.05

Nominal effective area of the piston

cm?2;

5

1

0.2

0.2

Version

pneumatic

Measuring range 1)

psi 2)

0.435 … 30

2.9 … 150

5.8 … 500

5.8 … 1,000

5.8 … 1,500

Required masses

kg

10

10

7

13

20

Smallest step

psi 3)

0.2

1

5

5

5

Sensitivity 4)

psi

0.00003

0.00015

0.00075

0.00075

0.00075

Nominal effective area of the piston

cm?2;

5

1

0.2

0.2

0.2

Version

hydraulic

Measuring range 1)

bar 2)

0.2 … 60

0.2 … 100

1 … 250

1 … 400

2 … 600

Required masses

kg

30

50

25

40

30

Smallest step

bar 3)

0.1

0.1

0.5

0.5

1

Sensitivity 4)

mbar

0.04

0.04

0.2

0.2

0.4

Nominal effective area of the piston

cm?2;

0.5

0.5

0.1

0.1

0.05

Version

hydraulic

hydraulic high pressure

Measuring range 1)

bar 2)

2 … 1,000

25 … 1,600

Required masses

kg

50

32

Smallest step

bar 3)

1

2.5

Sensitivity 4)

mbar

0.4

5

Nominal effective area of the piston

cm?2;

0.05

0.02

Version

hydraulic

hydraulic high pressure

Measuring range 1)

psi 2)

2.9 … 1,000

14.5 … 5,000

29 … 10,000

29 … 14,500

350 … 23,200

Required masses

kg

34

34

34

50

33

Smallest step

psi 3)

2

10

20

20

50

Sensitivity 4)

psi

0.006

0.003

0.006

0.006

5

Nominal effective area of the piston

cm?2;

0.5

0.1

0.05

0.05

0.02

Accuracies

Proportion of static pressure

0.0001 % of reading

Proportion of differential pressure

0.015 % of reading

standard 5) 6)

0.025 % of reading at hydraulic high pressure

Proportion of differential pressure]

0.008 % of reading

premium 5) 6)

0.02 % of reading at hydraulic high pressure

Lower limiting value of the measurement uncertainty

depending on the measuring range; corresponds to the sensitivity of the piston

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