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Rotronic Differential Pressure Measurement & Monitoring

 CRP5 - Clean Room Panel - Measure differential pressure and humidity

The Clean Room Panel, which is fitted with a diaphragm sensor for differential-pressure measurement, is a top-quality device. Validated according to GMP directives, and with its well thought-out design, the CRP5 is optimized for applications in laboratories and clean rooms. Optical buttons, and the magnet-mounted, removable HC2-CRP humidity and temperature probe permit efficient and effective cleaning. Up to 6 measurement values and messages can be displayed via its graphical color display. The colors of the display can be adjusted individually. Alarms, such as faults, exceeded limit values, or warnings are highlighted on the CRP5 display, and can also be forwarded digitally via MODBUS, Ethernet, or relays. Thanks to its analog and digital communication capabilities, the CRP5 is very easy to integrate in any monitoring system. Its comprehensive functional capabilities allow the CRP5 to be configured perfectly for each application. The CRP5 is distinctive in the marketplace through its tough glass front plate and a removable humidity sensor.

The CRP5 clean-room panel is the obvious choice wherever a high degree of cleanliness is vital, in addition to precise measurement of differential pressure, humidity, and temperature. The CRP5 is used particularly in clean-rooms in hospitals, in the pharmaceutical, electronics, and foodstuffs industries, and wherever small variances in pressure are monitored. The very comprehensive functional capabilities of the CRP5 provide solutions for many measurement and control tasks.


1. Measures differential pressure, humidity and temperature
2. Designed specifically for clean rooms
3. Removable humidity and temperature probes for simpler adjustment and cleaning
4. FDA- and GAMP-compatible
5. Digital communication via Ethernet RJ45 and/or MODBUS TCP / RTU


 PF1 - Differential Pressure Transmitter for HVAC applications


Differential pressure measurement made easy.

The PF1 series is a low-cost, high-precision and stable transmitter for measurement of differential pressure. The devices have an MEMS diaphragm sensor and boast excellent long-term stability.


1. High stability and repeatability
2. Compact design
3. Measurement ranges configurable by jumpers
4. Simple mechanical installation
5. Excellent value for money
6. Ideal for HVAC applications


 PF4/5 Differential-Pressure Transmitter

he new differential pressure transmitters PF4 and PF5 with two different sensor technologies (thermal measuring method in PF4 and diaphragm sensor in PF5) consistently produce perfect measurement results thanks to an integrated ambient pressure sensor. Both sensors are equipped with automatic zero point compensation. In the PF4, this is carried out automatically every 5 ms in the sensor, in the PF5 automatic compensation is performed with the help of an internal valve and programming in the HW4 V3.9.0. Both instruments can also be ordered with a HygroClip2 connection or a B4 connector for PT100. The new color display allows users to display up to 4 lines and a maximum of 3 measured values. All analog outputs, inputs and alarm settings can be changed via the intuitive menu. Thanks to analog and digital communication, both device types can be integrated easily into any monitoring system.


1. Flow or diaphragm differential pressure sensors
2. 1 to 3 analog outputs, 1 analog input
3. Network-compatible (Ethernet)
4. Modbus capable TCP or RTU via RS485
5. Potential-free relay with changeover contacts


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