An electro pneumatic pressure controller PRO HC is a precision pressure regulator that electronically converts a pre selected pressure quantity into a pneumatic pressure with the highest accuracy. Fluctuations in the supply as well as changing flow rates are precisely compensated. The device precisely regulates a preselected pressure. The pressure can be regulated in relation to the ambient pressure or to the absolute pressure (vacuum). The device has a quartz resonance pressure sensor. With this sensor a particularly high accuracy can be achieved. The adjustment times are longer due to the relatively slow measuring frequency of the quartz resonance pressure sensor.
The system pressure display shows the measured value applied to the pressures sensor.
The pressure preselection signal is represented by the internal microcontroller or transferred to it as an external analog preselection voltage. The actual pressure value is measured with a high precision pressure sensor. The microcontroller corrects and scales the characteristic curve and prepares it for output via the interface for a PC or an automation device. The standard version of the device already has a USB interface. As further options RS232, CAN, Ethernet and RS485 are available. The communication can be done in all common protocols.
The pressure controller is supplied with a standard program with which customer-specific program sequences can be created. The program can be operated from any PC. Several pressure controllers can also be operated with one PC. The sequences can be stored on the pressure controller. Thus, an individual test sequence is possible without a PC.
The PRO HC is only suitable for operation with gaseous, non-aggressive and non-flammable media such as dry air or nitrogen.
Application fields: production, development, research, calibration, simulation, testing technology
Measuring range: 0 … 50 mbar to 0 … 1000 bar, absolute, relative or differential pressure
Accuracy: +/-0.004% of full scale
Manual / computer operation
The PRO HC can be controlled in both manual and remote mode (PC mode). In manual mode, the unit is operated via the keypad.
System pressure display
The system pressure display, shows the applied pressure in bar or mbar, absolute or relative, depending on the version.
The keypad is used for manual control of the PRO HC.
Up to 100 pressure points with rise/fall times can be stored in the device. Free programming of any sequences is possible via PC or automation devices.
Certificates: Factory calibration (DAkkS as option), CE marking, declaration of conformity, certificate of origin
Dimensions: 444 x 88.4 x 264.5 mm (19“ housing)
Weight: Appr. 6.0 kg depending on equipment
Scope of delivery: Pressure controller with interface USB, power cable (1.5m), certificates (calibration, declarations of conformity), software for PC control
Options: RS232 interface, CAN interface, Ethernet interface, DAkkS calibration, RS485 interface, analog output 0 – 2V, 0 – 5V, 0 – 10V or -10V …. +10V, day pressure sensor, analog input 0 – 10 V for pressure specifications, 19“ built-in housing instead of desktop housing. Other interfaces are possible on request.
Accessories: Interface cable, calibration software for calibrating the device, pressure connection adapter