12.0996.0003
ROTRONIC AG, CH-8303 Bassersdorf
Tel. +41 44 838 11 44, www.rotronic.com
ROTRONIC Messgeräte GmbH, D-76275 Ettlingen
Tel. +49 7243 383 250, www.rotronic.de
ROTRONIC SARL, 56, F - 77183 Croissy Beaubourg
Tél. +33 1 60 95 07 10, www.rotronic.fr
ROTRONIC Italia srl
, I- 20157 Milano
Tel. +39 2 39 00 71 90, www.rotronic.it
ROTRONIC Instruments (UK) Ltd, West Sussex RH10 9EE
Phone +44 1293 571000, www.rotronic.co.uk
ROTRONIC Instrument Corp, NY 11788, USA
Phone +1 631 427-3898, www.rotronic-usa.com
ROTRONIC Instruments Pte Ltd, Singapore 159836
Phone +65 6376 2107, www.rotronic.sg
ROTRONIC Shanghai Rep. Offi ce, Shanghai 200233, China
Phone +86 40 08162018, www.rotronic.cn
A
Terminal Description
K2-1 V– Power supply −
K2-2 V+ Power supply +
K2-3 Earth
K3-1 NC Normally closed (relay not energized)
K3-2 COM Common terminal
K3-3 NO Normally open (relay energized)
K4-4 GND
GND
K4-3 GND
K4-2 OUT2 Analog temperature / humidity output +
K4-1 OUT1 Analog differential pressure output +
Terminal K2-3: Earth is usually connected to V–. If this is not wanted, the solder pad B5 on the
PCB must be opened.
Warning
Make sure that all settings have been made correctly before integrating and connecting the
transmitter in the network.
SHORT INSTRUCTION MANUAL
MENU button: open / close menu
ENTER button: select menu point
Menu navigation
Buttons + / - change value:
increase / decrease
Digital Differential Pressure Transmitter
Congratulations for the purchase of your new PF4
transmitter. Please read these short instructions
carefully before installing the device.
General Description
These short instructions are limited to a descrip-
tion of the main functions and installation of
the device. The detailed instruction manual can
be found on the internet at: www.rotronic.com
Commissioning
The device was adjusted in our factory per the accompanying certifi cate and therefore does not
need to be checked or readjusted during installation. After installation the device must be zeroed
by connecting the two pressure connections and the absolute air pressure (QFE) of the environs
entered into the device.
Supply Voltage / Current Consumption
Type
Supply Voltage /
Current Consumption
Load Output
PF431
15...40 VDC / 14... 28 VAC
<70 mA
(150 mA @ 15 VDC with Ethernet)
Max. 500 Ω
0...20 mA
PF432 4...20 mA
PF433
Min. 1000 Ω
0...1 V
PF434 0...5 V
PF435 0...10 V
Caution: Wrong supply voltages and excessively high loading of the outputs can
damage the transmitter.
Mounting with Drill Template
Drill the necessary holes using the drill template drawn
on the packaging. Then insert the plugs delivered with the
device and mount the transmitter with the screws.
Mounting on DIN Top-Hat Rail
The transmitter can be mounted directly on a TS35 DIN top-hat
rail with the AC5002 mounting kit (order separately). For this,
the DIN holders are screwed directly on to the pre-drilled holes
in the transmitter.
Specifi cations
Differential pressure measurement range:
-25...+25 Pa / -50…+50 Pa
-100...+100 Pa / -250…+250 Pa
-500...+500 Pa
Measurement range: -100...200 °C (depending on probe)
0...100 %rh
Range of application electronics 0...70 °C / 0…90 %rh
0...60 °C (with display)
Accuracy differential pressure:
±1.0 % full scale @23 °C ±3 K
Long-term stability sensor: ±0.3 %/year
Accuracy temperature: Probe-dependent
Protection: IP65 / IP40 (model with Ethernet)
Outputs: 0…1 V / 0…5 V / 0…10 V / 0…20 mA / 4…20 mA
Scale:
0…10 Pa / 0...25 Pa / -25...25 Pa / 0…50 Pa / -50...50 Pa
0…100 Pa / -100...100 Pa / 0…250 Pa / -250...250 Pa
0...500 Pa / -500...500 Pa
Interfaces: Ethernet (option)
HW4 compatibility: Version v3.2 / v3.4 (with HC2) and later
Relay switching capacity: <50 VAC / <75 VDC / <1 A, confi gurable with HW4
Housing material: ABS
Terminal Confi guration / Wiring Diagrams
The type is defi ned using the table Supply Voltage / Technology and then one of the following
wiring diagrams used:
Dimensions / Connections
Note
Unauthorized use of the menus can be blocked with the HW4 software.
The function for this is to be found in
HW4 Software > Device Manager > Display
.
Main Menu Points
Main Menu Submenu Selection / Information
Device Settings
Units
Metric / English
Back Light
Key Press / On / Off
Pressure
Absolute air pressure
Value 1
DiffPress / Humi HC2 / Temp HC2 / Calc / None
Value 2
DiffPress / Humi HC2 / Temp HC2 / Calc / None
Value 3
DiffPress / Humi HC2 / Temp HC2 / Calc / None
Device Information
Version
Firmware version
Serial Nbr
Serial number
Differential Pressure
Unit
Unit of measured value
Filter
Pa / inH2O / mpsi / mbar / mmHg / mmH2O / Torr / g/m2
0 τ63 = 0 s
7 τ63 = 32 s
Adjust
Sensor adjustment
Zero Adjust
Zero adjustment
Probe information (PF4 with HC2 connector)
SensorType
HC2 / Analog In
Scaling / Adjustment / Firmware Update
The following settings can be changed using the HW4 software and a link to your computer per
AC3006 service cable:
• output scale
• adjustment
• fi rmware update
IMPORTANT
The PF4 can just be adjustet with AC3006 cable and external power supply.
You can fi nd a detailed description in the manual that you can download from our web site at
www.rotronic.com.
Periodic Calibration of the Transmitter
Both the differential pressure sensor and the corresponding electronics are very stable and
do not normally need to be changed or calibrated after factory calibration. For maximum
accuracy we recommend regular calibration of the device.
Caution
Any movement of the sensor or the pipes during calibration and adjustment, will result in
deviated values.
Ethernet
Current Output
Voltage Output
=
~
V+
GND
GND
OUT1
OUT2
V+
GND
GND
OUT1
OUT2
1
2
3
K 2
V –
V +
K4
GND
GND
OUT2
OUT1
4
3
2
1
OUT 1 = Pa
OUT 2 = %rh / °C / °F
1 2 3
NO
NC
COM
K 3
B5
26
12.5
20.5
(54 pages)
(2 pages)
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