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The thermal measurement technique of the PF4 transmitter allows exact measu- rements in the smallest of ranges. The differential pressure transmitter enables ROTRONIC customers to measure a further important parameter in addition to humidity, temperature low dew point and CO2.
Features
• Accuracy: ±1.0 % full scale • Fast response time • Freely configurable analog signals • Integrated relay switch contact • High resistance to pressure • Thermal mass flow measurement at low flow rate • High immunity to dust and humidity in the environment • Integrated damping function for variable response times
Power supply • Low voltage: 3-wire
Signal outputs
• Current output • Voltage output • Ethernet • Relay switch contact
Version • Wall version
Output parameters
• Differential pressure • Differential pressure & temperature • Differential pressure, temperature & relative humidity
Measurement ranges • -25...+25 Pa / -50…+50 Pa / -100...+100 Pa / -250...+250 Pa / -500…+500 Pa
Display
• Display with backlight, trend indicator and keypad • Without display