Burkert 8221 - Calibration; Product with 2 Electrodes and a 5-Pin M12 Male Connector; Calibration While the Product Is Disassembled from Process

8.5. Product with 2 electrodes and a
5-pin M12 male connector
Temperature sensor
Pt1000
Cell
1
2
5
3
4
Fig. 17: 5-pin M12 male connector, pin assignment
→ To connect the product to a device Type 8619, obey the instruc-
tions given in the Operating Instructions Type 8619 and in
Fig. 18.
C+
P+
P-
C-
GD
FE
SE
TS
TS
12 345678 9
1
3
4
5
2
3
5
2
4
1
Fig. 18: Wiring the product with 2 electrodes and a 5-pin M12
male connector to the device Type 8619
9. CALIBRATION
There are 2 possible calibration procedures:
• calibration while the product is disassembled from process;
• calibration in the process.
9.1. Calibration while the product is
disassembled from process
For precise determination of the cell constant, it is recommended
that you do the calibration procedure in the conditions that are
similar to the process conditions. The cell constant may vary
according to the final mounting position in the process.
→ Rinse the product thoroughly with deionized water.
→ Use a beaker with an internal diameter of at least 60 mm. (The
product can be directly immersed into the Bürkert conductivity
standard calibration solutions).
→ Use a solution of known conductivity.
→ Make sure the temperature of the solution is measured and
stable.
→ Immerse the product in the calibration solution. Make sure the
surfaces of all electrodes (2 or 4, depending on the version) are
immersed. The product should be placed in the center of the
beaker.
→ Leave the product in the solution for at least 5 minutes for equili-
bration, before initiating the calibration on the instrument.
29
Calibration
Type 8221
English