bürkert 8201 Bedienungsanleitung Seite 15

3.4 Fluidic and electrical attachments
Fig 9: Terminal pin assignment
For interconnecting cables be-
tween the sensor and the meas-
uring transmitter
•
Carry out measuring transmitter and electrolyte vessel
earth connections carefully.
•
Check that the earth connections are in working order.
•
Screw on the connection cable on the sensor.
•
Connect the cable ends to the measuring transmitter inputs
in accordance with the attachment layout diagram.
•
Make the hose connection between the electrolyte vessel
and the sensor.
• Connect the measuring transmitter signal output with the
control electronics (controller, PLC or similar).
• With the measuring transmitter mains adapter switched off,
connect to the mains voltage.
• If required, attach the electrolyte vessel to the compressed
air supply.
Note: This attachment is required if the medium is pressur-
ised. In this case the pressure in the electrolyte vessel should be
0.5 bar above the medium pressure. A higher pressure difference
leads to unnecessarily high electrolyte consumption.
At a pressure difference of 0.5 bar, electrolyte consumption is ap-
proximately 0.01 to 0.02 ml/h.
•
The measuring transmitter must be adjusted and the sensor
conditioned and/or calibrated (see next section) before
commissioning the measuring system for the first time.
In order to avoid any type of potential loss, please ensure that
no moisture can enter the connector or the socket. If necessary, dry
both parts using a hair dryer or hot-air fan.
Table 1: Attachment layout plan for the connection cable
Description Colour
A black
B red
C grey
D blue
E white
F green
S green/yellow
Signal
pH sensor
Reference electrode
(coaxial protection)
Sensor body
Rhodium electrode
Pt1000
Pt1000
cable protection
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