ROTRONIC PF4 - Manual (Page 28)

E-M-PF4-V1_00
Rotronic AG
Bassersdorf, Switzerland
Document Code Unit
PF4 Differential Pressure Transmitter:
Instruction Manual
Instruction Manual
Document Type
Page 28 of 54
Document Title
© 2014; Rotronic AG E-M-PF4-V1_00
6.1.2 Dust and Humidity
Since the flow of air through the differential pressure sensor is very low (max. 180 µl/min), dust particles already
settle on the inside walls of the inlet tube and do not reach the sensor. The device is thus largely insensitive to
dust in the air being measured. The same applies to condensing air in the tube. As a result very little humidity
is transported to the sensor.
6.2 Analog Outputs
The analog outputs of the PF4 are configured at the factory according to the order specifications. If a change
is required use HW4 software to modify the instrument configuration.
6.3 Ethernet Connection
The PF4 with digital option uses the standard RO-ASCII protocol. Users who wish to evaluate the measured
data without ROTRONIC HW4 software are asked to consult ROTRONIC.
The Ethernet interface of the PF4 can be used best together with a PC with installed HW4 software (version 3.2
or later). Users may in principle access the measured data of the PF4 with any communication software. This
is described in detail in the document E-M-AC3000-CP.
Before connecting the PF4 to an active Ethernet network, it is first necessary to configure the TCP/IP settings.
You can find instructions for this in the HW4 manual E-M-HW4v3-Main (chapter 7.4) and the technical
guidelines E-M-TCPIP-Conf. The manuals can be downloaded from the website www.rotronic.com .
WARNING:
Before connecting the PF4 to an active Ethernet network, make sure it is configured correctly for IP
communication. Otherwise conflicts could disturb communication in the network.