Page 1
Pressure balance
High-pressure version
Model CPB5000HP
for further approvals
see page 5
Applications
■
Primary standard for representing the pressure scale in a
hydraulic range up to 5,000 bar (70,000 psi)
■
Reference instrument for factory and calibration
laboratories for the testing, adjustment and calibration of
pressure measuring instruments
■
Complete, stand-alone system, also suitable for on-site
use
Calibration technology
WIKA data sheet CT 31.51
Special features
■
Total measurement uncertainty to 0.02 % of reading
■
Factory calibration included as standard, traceable to
national standards; with DKD/DAkkS calibration possible
as an option
■
High long-term stability with recommended recalibration
interval every ve years
■
Masses manufactured from stainless steel and aluminium,
can be adjusted to local gravity
Description
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 purely
mechanical measuring principle, the model CPB5000HP is
ideal for on-site use for maintenance and service.
Pressure balance, high-pressure version,
model CPB5000HP
Basic principle
Pressure is dened as the quotient of force and area. The
core component of the CPB5000HP 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
standard, these masses are manufactured to the standard
gravity (9.80665 m/s²), though they can be adjusted to a
specic location and also DKD/DAkkS calibrated.
∙ 05/2016
Data sheets showing similar products and accessories:
Dead-weight tester in compact design; model CPB3800; see data sheet CT 31.06
Pneumatic pressure balance; model CPB5000; see data sheet CT 31.01
Hydraulic pressure balance; model CPB5800; see data sheet CT 31.11
Pressure balance for dierential pressure; model CPB5600DP; see data sheet CT 31.56
CalibratorUnit; model CPU6000; see data sheet CT 35.02
Page 1 of 9WIKA data sheet CT 31.51
Page 2
Easy operation
The setting of the pressure is made via an integrated pump.
For ne adjustment, a very precisely controllable spindle
pump is tted, with a spindle running within it.
As soon as the measuring system reaches equilibrium, there
is a balance of forces between the pressure and the masses
applied. The excellent quality of the system ensures that
this pressure remains stable over several minutes, so that
the pressure value for comparative measurements can be
read without any problems, or also so that more complex
adjustments can be carried out on the test item.
The piston-cylinder system
Robust instrument design
With the high-pressure model, calibrations up to a maximum
of 5,000 bar (70,000 psi) are possible.
It is built into a stable base and oers exceptional ease-of-
use. With the integrated priming pump and the 250 ml tank,
large test volumes can also be easily lled and primed.
Both the piston and cylinder are manufactured from
hardened steel or tungsten carbide, respectively. These
pairings of materials, in comparison to other materials, have
very low pressure and temperature coecients of expansion,
which results in a very good linearity for the eective area of
the piston and a very high accuracy.
The overall design of the piston-cylinder system and the
very precise manufacturing of both the piston and the
cylinder, ensures excellent operating characteristics with
long free-rotation time and low sink rates. Thus a high
long-term stability is ensured. Therefore, the recommended
recalibration interval is two to ve years dependent on the
conditions of use.
Tables of masses
The following tables show the number of masses within a
mass set with their nominal mass values and the resulting
nominal pressures for the respective measuring ranges.
Should the instrument not be operated under reference
conditions (ambient temperature 20 °C (68 °F), atmospheric
pressure 1,013 mbar (14.69 psi), relative humidity 40 %), the
measured values must be corrected arithmetically.
Both test connections are tted with knurled nuts and
exchangeable thread adapters with sealing cones. M16 x 1.5,
M20 x 1.5 and 9/16-18 UNF thread adapters with male
threads are included in the scope of delivery.
For the measurement of the ambient conditions, the
CPU6000 CalibratorUnit can be used, see page 6.
The masses are manufactured, as standard, to the standard
gravity (9.80665 m/s²) although they can be adjusted for any
local gravity.
Measuring range 25 ... 2,500 bar 25 ... 4,000 bar 25 ... 5,000 bar
Quantity Nominal
pressure per
piece in bar
Piston incl. mass carrier 1 25 1 25 1 25
Masses 5 kg - - 6 250 10 250
Masses 4 kg 8 200 8 200 8 200
Masses 2 kg 9 100 9 100 9 100
Masses 1 kg 1 50 1 50 1 50
Masses 0.5 kg 2 25 2 25 2 25
Masses 0.2 kg 1 10 1 10 1 10
Masses 0.1 kg 1 5 1 5 1 5
Masses 0.05 kg 1 2.5 1 2.5 1 2.5
Page 2 of 9 WIKA data sheet CT 31.51 ∙ 05/2016
Quantity Nominal
pressure per
piece in bar
Quantity Nominal
pressure per
piece in bar
Page 3
Measuring range 350 ... 40,000 psi 350 ... 60,000 psi 350 ... 70,000 psi
Quantity Nominal
pressure per
piece in psi
Piston incl. mass carrier 1 350 1 350 1 350
Masses 7 kg 2 5,000 6 5,000 8 5,000
Masses 3.5 kg 8 2,500 8 2,500 8 2,500
Masses 1.4 kg 8 1,000 8 1,000 8 1,000
Masses 1 kg 1 750 1 750 1 750
Masses 0.7 kg 2 500 2 500 2 500
Masses 0.35 kg 1 250 1 250 1 250
Masses 0.14 kg 1 100 1 100 1 100
Masses 0.07 kg 1 50 1 50 1 50
Quantity Nominal
pressure per
piece in psi
Quantity Nominal
pressure per
piece in psi
Specications
Model CPB5000HP
Piston-cylinder system
3) 4)
3) 4)
1)
2)
1)
2)
25 ... 2,500 bar 25 ... 4,000 bar 25 ... 5,000 bar
2.5 bar 2.5 bar 2.5 bar
350 ... 40,000 psi 350 ... 60,000 psi 350 ... 70,000 psi
50 psi 50 psi 50 psi
0.025 % of reading
0.02 % of reading
delivery)
5,000 bar / 70,000 psi: Sebacate oil (0.5 litres included in scope of delivery)
Measuring range
Required masses 50 kg 80 kg 100 kg
Smallest step
(Standard mass set)
Nominal eective area of the piston 0.02 cm² 0.02 cm² 0.02 cm²
Measuring range
Required masses 55 kg 83 kg 97 kg
Smallest step
(Standard mass set)
Nominal eective area of the piston 0.02 cm² 0.02 cm² 0.02 cm²
Accuracies
Standard
Premium
Pressure transmission medium to 4,000 bar / 60,000 psi: Hydraulic uid based on VG22 mineral oil (1 litre included in scope of
Material
Piston Hardened steel
Cylinder Tungsten carbide
Piping in base 1.4404 stainless steel, 6 x 2 mm
1) Theroretical starting value; corresponds to the pressure value generated by the piston (by its own weight). To optimise the operating characteristics more masses should be loaded.
2) The smallest pressure change value that can be achieved based on the standard mass set. To reduce this, a set of ne increment masses is also available.
3) The accuracy from 10 % of the measuring range is based on the measured value. In the lower range, a xed error based on 10 % of the range applies.
4) Measurement uncertainty assuming reference conditions (ambient temperature 20 °C (68 °F), atmospheric pressure 1,013 mbar (14.69 psi), relative humidity 40 %). For operation
without a CalibratorUnit, corrections must be made if required.
WIKA data sheet CT 31.51 ∙ 05/2016 Page 3 of 9
Page 4
Piston-cylinder system
Weight
Piston-cylinder system 2.7 kg / 5.0 kg (6.0 lbs / 11.0 lbs) (incl. storage case)
bar basic mass set, carrying case 1 34.0 kg (75.0 lbs) 34.0 kg (75.0 lbs) 34.0 kg (75.0 lbs)
bar basic mass set, carrying case 2 27.5 kg (60.6 lbs) 27.5 kg (60.6 lbs) 27.5 kg (60.6 lbs)
bar extension mass set,
carrying case 1
bar extension mass set,
carrying case 2
psi basic mass set, carrying case 1 51.0 kg (112.5 lbs) 51.0 kg (112.5 lbs) 51.0 kg (112.5 lbs)
psi basic mass set, carrying case 2 15.0 kg (33.1 lbs) 15.0 kg (33.1 lbs) 15.0 kg (33.1 lbs)
psi extension mass set,
carrying case 1
psi extension mass set,
carrying case 2
Dimensions (W x D x H)
Carrying case 1 for basic mass set 400 x 310 x 310 mm (15.7 x 12.2 x 12.2 in)
Carrying case 2 for basic mass set 215 x 310 x 310 mm (8.5 x 12.2 x 12.2 in)
Carrying case for extension mass
set
Storage case for the piston-cylinder
system
-- 33.5 kg (73.9 lbs) 33.5 kg (73.9 lbs)
-- -- 23.5 kg (51.8 lbs)
-- 31.8 kg (70.1 lbs) 31.8 kg (70.1 lbs)
-- -- 17.8 kg (39.2 lbs)
215 x 310 x 310 mm (8.5 x 12.2 x 12.2 in)
370 x 150 x 150 mm (14.6 x 5.9 x 5.9 in)
Base
Pressure transmission medium to 4,000 bar / 60,000 psi: Hydraulic uid based on VG22 mineral oil (1 litre included in scope of
delivery)
5,000 bar / 70,000 psi: Sebacate oil (0.5 litres included in scope of delivery)
Reservoir 250 cm³
Connections
Connection for piston-cylinder
system
Test item connection Freely positionable, standard with three thread adapters, M16 x 1.5, M20 x 1.5 and 9/16-18UNF
Material
Piping in base 1.4404 stainless steel, 6 x 2 mm
Weight
High-pressure base 32.5 kg (71.7 lbs)
Permissible ambient conditions
Operating temperature 18 ... 28 °C (64 ... 82 °F)
Dimensions (W x D x H)
Base 460 x 445 x 265 mm (18.1 x 17.5 x 10.4 in), for details, see technical drawings
M30 x 2 female with sealing cone
for further thread adapters, see Accessories
Page 4 of 9 WIKA data sheet CT 31.51 ∙ 05/2016
Page 5
Approvals
Logo Description Country
EC declaration of conformity
Pressure equipment directive
■
97/23/EC, module A (valid until 2016-07-18)
■
2014/68/EU, module A (valid from 2016-07-19)
Uzstandard
Metrology, measurement technology
- MTSCHS
Permission for commissioning
European Community
Uzbekistan
Kazakhstan
Certicates
Certicate
Calibration Standard: 3.1 calibration certicate per DIN EN 10204
Option: DKD/DAkkS calibration certicate
Recommended recalibration interval 2 to 5 years (dependent on conditions of use)
Approvals and certicates, see website
Transport dimensions for complete instrument
The complete instrument, in its standard version and standard scope of delivery, is shipped on two pallets.
The dimensions are 1,200 x 800 x 500 mm (47.3 x 31.5 x 19.7 in) and 800 x 600 x 500 mm (31.5 x 23.6 x 19.7 in).
The overall weight is dependent on the measuring range.
Version in bar Weight
net gross
25 ... 2,500 bar 100 kg (220.5 lbs) 130 kg (286.7 lbs)
25 ... 4,000 bar 133 kg (293.3 lbs) 166 kg (366.0 lbs)
25 ... 5,000 bar 156 kg (344.0 lbs) 194 kg (427.8 lbs)
Version in psi Weight
net gross
350 ... 40,000 psi 104 kg (229.3 lbs) 134 kg (295.5 lbs)
350 ... 60,000 psi 136 kg (299.9 lbs) 169 kg (372.6 lbs)
350 ... 70,000 psi 153 kg (337.4 lbs) 191 kg (421.2 lbs)
WIKA data sheet CT 31.51 ∙ 05/2016 Page 5 of 9
Page 6
587 (23.11)
669 (26.34)
Dimensions in mm (in)
Side view (left)Front view
1
2
ø 558 (21.97)
Top view
9
8
7
460 (18.11)
345.5 (13.6)
3
44.5 (1.75)
115.5
(4.55)
380 (14.96)
268 (10.55)
161.5 (6,36)
Test item connection
11
10
1
4
445 (17.52)
36
56
1
Priming pump
2
Test item connection
3
Rotatable feet
4
Spindle pump with star handle
5
High-pressure shut-o valve (HP)
6
Low-pressure shut-o valve (LP)
7
Level
8
Connector for piston-cylinder system
9
Reservoir with plug screw
10
Knurled nut
11
Thread adapter
Page 6 of 9 WIKA data sheet CT 31.51 ∙ 05/2016
Page 7
CalibratorUnit model CPU6000
The models of the CPU6000 series are compact tools for use
with a pressure balance (dead-weight tester). In particular
when highly accurate measuring values, with measurement
uncertainties of less than 0.025 %, are required, complicated
mathematical calculations and corrections are necessary.
With the CPU6000 in combination with the CPB-CAL
®
(iPad
app) and/or WIKA-CAL (PC software) all critical
ambient parameters can be registered and automatically
corrected.
The CPU6000 series is made up of three
instruments
Weather station, model CPU6000-W
The CPU6000-W provides measured values such as
atmospheric pressure, relative humidity and the ambient
temperature of the laboratory environment.
Pressure balance sensor box, model CPU6000-S
The CPU6000-S measures the piston temperature and
displays the oating position of the masses.
CPU6000 series and iPad® app CPB-CAL
Digital multimeter, model CPU6000-M
The CPU6000-M fulls the function of a digital multimeter
and power supply unit when electronic pressure transmitters
must be calibrated.
Typical application
CPB-CAL iPad® app
The iPad
balances (dead-weight testers) or the reference pressure
while taking the measured parameters from the CPU6000
into account. The conversion can be carried out in all
common pressure units. As an additional parameter, the local
gravity can be given for location-independent measurements.
WIKA-CAL PC software - Weight calculator
With the demo version of the WIKA-CAL software and a CPB
series pressure balance (dead-weight tester), the masses to
be applied and the corresponding reference pressure can be
determined. The pressure balance data (dead-weight tester
data) can be entered into the database manually or imported
automatically via an XML le available online.
All ambient parameters and piston temperature can be
entered manually into WIKA-CAL or can be measured
automatically with the CPU6000 series, so that the highest
accuracy can be achieved. WIKA-CAL demo version can be
downloaded free of charge from the WIKA website.
®
application calculates the masses for pressure
Model CPU6000-W, CPU6000-S, CPB5800 and PC with
WIKA-CAL software
Further specications on the CPU6000 series can be found
in data sheet CT 35.02.
For details of the WIKA-CAL calibration software see data
sheet CT 95.10.
WIKA data sheet CT 31.51 ∙ 05/2016 Page 7 of 9
WIKA-CAL PC software - Weight calculator
Page 8
Further pressure balances (dead-weight testers) within our calibration technology
programme
Dead-weight tester in compact design, model CPB3800
Measuring ranges:
Hydraulic 1 ... 120 to 10 ... 1,200 bar
(10 ... 1,600 to 100 ... 16,000 psi)
Accuracy: 0.05 % of reading
0.025 % of reading (optional)
For specications see data sheet CT 31.06
Pneumatic pressure balance, model CPB5000
Measuring ranges:
Pneumatic -0.03 ... -1 to +0.4 ... +100 bar
(-0.435 … -14 to +5.8 … +1,500 psi)
Accuracy: 0.015 % of reading
0.008 % of reading (optional)
For specications see data sheet CT 31.01
Hydraulic pressure balance, model CPB5800
Measuring ranges:
Hydraulic Single-piston measuring ranges:
1 ... 120 to 2 ... 300 bar
(10 ... 1,600 to 30 ... 4,000 psi)
Dual-piston measuring ranges:
1 ... 60 bar / 10 ... 700 bar to
1 ... 60 bar / 20 ... 1,400 bar
(10 ... 800 psi / 100 ... 10,000 psi to
10 ... 800 psi / 200 ... 20,000 psi)
Accuracy: 0.015 % of reading
up to 0.006 % of reading (optional)
Dead-weight tester in compact design, model CPB3800
Pneumatic pressure balance, model CPB5000
For specications see data sheet CT 31.11
Pressure balance for dierential pressure, model
CPB5600DP
Measuring ranges (= static pressure + dierential
pressure):
Pneumatic 0.03 ... 2 to 0.4 … 100 bar
(0.435 ... 30 to 5.8 … 1,500 psi)
Hydraulic 0.2 ... 60 to 25 … 1,600 bar
(2.9 ... 1,000 to 350 … 23,200 psi)
Accuracy: 0.015 % of reading
0.008 % of reading (optional)
For specications see data sheet CT 31.56
Page 8 of 9 WIKA data sheet CT 31.51 ∙ 05/2016
Hydraulic pressure balance, model CPB5800
Pressure balance for dierential pressure,
model CPB5600DP
Page 9
Set of ne increment masses M1 and F1
The masses included in the standard mass set are ideally
suited for everyday use. If even smaller intermediate values
need to be generated, using one of the class M1 or F1
set of ne increment masses with the following masses is
recommended:
1 x 50 g, 2 x 20 g, 1 x 10 g, 1 x 5 g, 2 x 2 g, 1 x 1 g,
1 x 500 mg, 2 x 200 mg, 1 x 100 mg, 1 x 50 mg, 2 x 20 mg,
1 x 10 mg, 1 x 5 mg, 2 x 2 mg, 1 x 1 mg
Designation/Version Order number
Set of ne increment masses (1 mg up to 50 g), class F1 7093874
Set of ne increment masses (1 mg up to 50 g), class M1 14025325
Adapter for test item connection with G ½ female thread, max. 1,600 bar, material 1.4571 stainless steel 11095912
Adapter for M30 x 2 male thread to M16 x 1.5 male thread for piston-cylinder connector block, operation as
comparison test pump possible
Operating uid for CPB5000HP up to max. 4,000 bar (60,000 psi), 1 litre 2099882
Operating uid for CPB5000HP up to max. 5,000 bar (70,000 psi), 0.5 litres 11123150
Set of ne increment masses
11360071
Scope of delivery
■
Base with dust protection cover
■
Priming pump
■
Spindle pump for lling, pressure generation and ne
Options
■
Systems with increased accuracy to 0.02 %
■
Mass set manufactured to local gravity
■
DKD/DAkkS calibration certicate
pressure adjustment
■
Piston connection
■
Test item connection with three thread adapters,
M16 x 1.5, M20 x 1.5 and 9/16-18 UNF
■
Piston-cylinder system
■
Mass set divided between several transport cases, see
specications
■
Masses, manufactured to local gravity
(standard value: 9.80665 m/s²)
■
VG22 mineral oil, 1.0 litre (up to 4,000 bar / 60,000 psi)
■
Sebacate oil, 0.5 litres (for 5,000 bar / 70,000 psi)
■
Flats 36 and ats 46 open-ended spanner
■
Operating instructions in German and English language
■
Factory calibration certicate
Ordering information
Model / Instrument version / Accuracy / Calibration for the pressure balance / Installation of CPU6000-S Calibrator Unit sensor
system / Additional ordering information
© 11/2010 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modications to the specications and materials.
05/2016 EN
WIKA data sheet CT 31.51 ∙ 05/2016 Page 9 of 9
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 9372 132-0
Fax +49 9372 132-406
info@wika.de
www.wika.de
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