ROTRONIC PF4 - Manual (Page 8)

E-M-PF4-V1_00
Rotronic AG
Bassersdorf, Switzerland
Document Code Unit
PF4 Differential Pressure Transmitter:
Instruction Manual
Instruction Manual
Document Type
Page 8 of 54
Document Title
© 2014; Rotronic AG E-M-PF4-V1_00
Inside View:
Figure 3: Inside view with description of the main components of the PF4
3.2.1 Differential Pressure Measurement Ranges
The following sensor measurement ranges are available:
 -25...+25 Pa
 -50…+50 Pa
 -100…+100 Pa
 -250…+250 Pa
 -500…+500 Pa
Differential pressures outside the specified ranges are shown, but the measurement results are not reliable.
Mini-USB
service connector Differential pressure
sensor Terminals K3 for
isolated relay contacts
Differential pressure
tubes
HC2 sensor for
temperature and
relative humidity
Terminals K4 for analog
temp. and differential
pressure values
Terminals K2 for power
supply