Calibration technology
Page 1 of 8
WIKA data sheet CT 17.02
∙ 10/2018
Data sheets showing similar products:
ProcessCalibrator; model CPH6000; see data sheet CT 15.01
Precision hand-held pressure indicator; model CPH6400; see data sheet CT 14.01
Hand-held pressure indicator; model CPH6300; see data sheet CT 12.01
Calibration software; WIKA-Cal; see data sheet CT 95.10
Portable pressure calibrator
Model CPH7650
Applications
■
Calibration service companies and service industry
■
Measurement and control laboratories
■
Quality assurance
Special features
■
Measurement and electrical pressure generation
at the touch of a button with integrated pump, from
-0.85 ... +20 bar (-12 ... 290 psi)
■
Accuracy: 0.025 % FS (incl. calibration certicate)
■
Generation/measurement of 4 ... 20 mA, and DC 24 V
voltage supply to power transmitters
■
Robust case design, IP67
Description
General information
The portable pressure calibrator model CPH7650 is a
compact, portable pressure calibrator, which has been
designed for mobile use as well as for stationary workshop
and laboratory testing. An integrated electrical pump enables
you to generate pressures up to 20 bar (300 psi) and an
integrated electrical module also enables you to supply
transmitters or sensors with a current of max. 30 mA (voltage
(idling) = DC 24 V), in addition to the traditional measurement
of current and voltage signals.
Accuracy
The exchangeable model CPT6000 reference sensor
oers an accuracy of 0.025 % of span. The temperature
compensation of the built-in sensor safeguards the accuracy
for applications in the eld. Readings can be displayed in one
of 13 standard units.
Features
With the portable pressure calibrator, not only are accurate
pressure measurements possible, but also exact current and
voltage measurements, as well as a DC 24 V voltage supply
for test items are enabled. Pressure values and electrical
measured values are simultaneously shown in the display.
The calibrator is integrated into a robust, as well as dust
and waterproof transport case. Thus the mobile pressure
calibrator is particularly suited to use in harsh industrial
environments.
With the built-in NiMH rechargeable battery, a battery
life of approximately 50 hours or 125 pump cycles up to
20 bar (290 psi) is guaranteed. The external universal
power supply is designed for an operating voltage of
AC 100 ... 240 V.
Portable pressure calibrator, model CPH7650
Page 2 of 8 WIKA data sheet CT 17.02 10/2018
Specications
Model CPH7650
Measuring ranges
Pressure
1)
Gauge pressure -1 … +20 bar, -1 … +10 bar, 0 … 20 bar, 0 … 10 bar
Absolute pressure 0 … 10 bar abs., 0 … 20 bar abs.
Overpressure limit
2)
3 times
Accuracy 0.025 % FS
Resolution 5-digit
Temperature compensation 15 … 35 °C (59 ... 95 °F)
Temperature coecient 0.002 % of span/°C outside of 15 ... 35 °C (59 ... 95 °F)
Current
Measuring range 0 … 24 mA (max. load 1,000 Ω)
Resolution 1 µA
Accuracy 0.015 % of reading ±2 µA (simulation and measurement)
Voltage
Measuring range DC 0 … 30 V
Resolution 1 mV
Accuracy 0.015 % of reading ±2 mV (measurement)
1) Via exchangeable model CPT6000 reference pressure sensors
2) The electrical pump can generate -0.85 … +20 bar (-12 … 290 psi).
Base instrument
Pressure supply -0.85 ... +20 bar (-12 ... 290 psi), via integrated electric pump
Pressure connection for test item G ½" female thread
Permissible media For dry, clean and non-aggressive gases
Output
Voltage supply DC 24 V
Power supply
Battery type NiMH rechargeable battery
Permissible ambient conditions
Operating temperature -10 … +50 °C (14 ... 122 °F)
Storage temperature -20 … +60 °C (-4 ... +140 °F)
Relative humidity 35 ... 85 % r. h. (non-condensing)
Software
The WIKA-Cal calibration software is available for online
calibrations in connection with a PC. Using this software, the
data is automatically transferred into a printable calibration
certicate. Furthermore, WIKA-Cal also oers, over and
above PC-supported calibration, the management of the
calibration and instrument data in an SQL database. A USB
interface is available for the data transfer.
Certied accuracy
For the CPH7650, the accuracy is certied by a factory
calibration certicate which accompanies the instrument. On
request, we can provide a DKD/DAkkS calibration certicate
for this instrument.