Baumer CombiLyz AFI4 Operating Instruction

English
CombiLyz AFIx conductivity transmitter is a compact sensor/transmitter,
based on inductive technology, which is designed and produced to meet
the requirements in hygienic and general industry where measuring of
medium range conductivity is used.
Description
CombiLyz AFIx consists of a conductivity sensor and a transmitter built
into one compact unit.
The output from the transmitter are two 4...20 mA, which is available for
both conductivity, concentration and temperature.
The display features more user selectable modes and user specified
"product labels" and warnings. Further there are two relay outputs for
alarms or control.
The background colour can be set in three colours, white, green or red
- steady or flashing, controlled by the alarm settings. The transmitter and
display can be programmed by either the touch screen on the display or
by the FlexProgrammer programming unit and software.
Safety instruction
This instrument is built and tested according to the current EU-directives
and packed under technically safe conditions. In order to maintain these
conditions and to ensure safe operation, the user must follow the hints
and warnings given in this instruction.
During the installation the valid national rules have to be observed. Ig-
noring the warnings may lead to severe personal injury or substantial
damage of property.
The product must be operated by trained staff. Correct and safe opera-
tion of this equipment is dependent on proper transport, storage installa-
tion and operation.
All electrical wirings must conform to local standards. In order to prevent
stray electrical radiation, we recommend twisted and shielded input
cables and also to keep power supply cables separated from the input
cables. The connection must be made according to the connection dia-
grams.
Before switching on the power supply take care that other equipment is
not affected. Ensure that the power voltage, the conditions are the envi-
ronment comply with the specification of the device.
Before switching off the power supply voltage, check the possible effects
on other equipment and the processing system.
WARNING
The device is not approved for electrical installations in explosion proof
areas.
After mounting of the device - do check that the housing has a ground
potential.
The product contains no direct replaceable parts, except for the DFON
display. In case of malfunction the product must be sent to Baumer for
repair.
www.baumer.com
CombiLyz, AFI4 / AFI5
Operating Instruction
Working principle
The measuring cell is a homogeneous sealed body all in PEEK.
Through the body is a hole, through which the media is flowing. Built-in
around the hole are two coils; a primary coil supplied with an AC volt-
age and a secondary coil, which picks up a small signal through the
media inducted voltage. The size of this voltage is dependent on the
conductivity of the media. This signal is handled and amplified in the
electronics to a linear analogue 4...20 mA output signal. Also built into
the body is a Pt100 sensor placed in the tip of the sensor. This is meas-
uring the media temperature to enable temperature compensation of
the conductivity signal, which is very temperature dependent. The
Pt100 sensor signal also features an analogue 4...20 mA output signal.
The coils and sensor are encapsulated in the PEEK sensor body, which
have a surface with surface roughness (Ra) <0,8 µm. It is therefore well
suited for use in hygienic processes or direct in concentrated acids or
alkalis.
Range setting
~
input R1 and R2
VAC
A
CPU
D
D
A
Media
Primary coil Secondary coil
Pt100
Operating Instruction: 11126179 05
English page 1...11
Deutsch Seite 12...22
Français page 23...33
AFI5 page 34...35
Conductivity/Concentration
4...20 mA output
4...20 mA output
Temperature
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