Calibration

WIKA data sheet CT 17.02

Page 1 of 9

WIKA data sheet CT 17.02

∙ 12/2019

Data sheets showing similar products:

Process calibrator; 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

Portable pressure calibrator, model CPH7650

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.

The external universal power supply is designed for an

operating voltage of AC 100 ... 240 V.

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

WIKA data sheet CT 17.02 ∙ 12/2019 Page 2 of 9

Specications

Model CPH7650

Sensor technology

Measuring ranges

Gauge pressure bar 0 ... 10 0 ... 16 0 ... 20

psi 0 ... 150 0 ... 300

Absolute pressure bar abs. 0 ... 10 0 ... 16 0 ... 20

psi abs. 0 ... 150 0 ... 300

Vacuum and +/- measuring range bar -1 ... 9 -1 ... 20

psi -14.5 ... 130 -14.5 ... 300

Overpressure safety

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]

Electrical safety

Resistance to overvoltage Yes

Short-circuit resistant Yes

Reverse polarity protection Yes

Voltage-resistant up to DC 60 V

Input resistance

Current measurement 20 Ω

Voltage measurement 1 MΩ

Measuring input, current

Measuring range 0 ... 20 mA; 4 ... 20 mA

Resolution up to 6 digits; adjustable

Accuracy 0.015 % of reading ±2 µA (simulation and measurement)

Measuring input, voltage

Measuring range DC 0 … 1 V; DC 0 ... 2 V; DC 0 ... 5 V; DC 0 ... 10 V

Resolution up to 6 digits; adjustable

Accuracy 0.015 % of reading ±2 mV (measurement)

Output

Voltage supply DC 24 V / max. 50 mA (can be activated via menu)

1) Via exchangeable model CPT6000 reference pressure sensors

2) The electrical pump can generate -0.85 … +20 bar [-12 … 290 psi].

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

RS-232 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.