Kobold NGR, Operating Instructions Manual

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2
Commissioning the NGR
1 5
2.3 Foam commissioning (with factory settings)
For use in applications with a significant buildup of foam.
Performing foam calibration
1. Mount the sensor according to the installation conditions (see Chapter 1.4 "Installation conditions"
and 1.7 "Mounting the coaxial tube")
2. Log into expert mode (see Chapter 5.1 "Expert mode")
3. Empty the tank completely
○
The probe rod must be completely free from medium and foam.
○
Buildup must be removed from the probe.
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The end of the probe must not be fixed to the bottom of the tank.
4. Select the measuring mode
○
Access the EXPRT-CONFIG-MeasMd menu using the arrow and Set pushbuttons, and configure
to HiAcc .
5. Perform empty calibration
Access the EXPRT-FOAM-CalEmp menu using the arrow and Set pushbuttons.
○
!CalOk: proceed to step 6.
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!faild: Ensure that the tank is empty and repeat step 5.
6. Fill with medium (without foam) until the probe is covered by at least 200 mm. The maximum level
must remain 200 mm from the process connection, however.
7. Adjust the sensitivity
Exit the EXPRT menu with the ESC pushbutton. The
NGR
must now display a valid measured
value. If the measured value is invalid, adjust the TrsHld value in the EXPRT-CONFIG menu.
Access the EXPRT-CONFIG-T rsHld menu using the arrow and Set pushbuttons.
The following information applies:
○
50% = high sensitivity
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100% = standard
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200% = low sensitivity
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Value range 20 to 500%
8. Run EXPRT-Foam-CalMe d
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!CalOk: Everything in working order, proceed to step 9
○
!faild: Carry out step 5 again
9. Check the foam calibration in EXPRT-Foam-FomSta
○
active: Foam commissioning was completed successfully.
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inactive: Commissioning unsuccessful. Please repeat the process.