KROHNE OPTISWIRL 4200 Supplementary Instructions Manual page 22

SERVICE
4
• Increase frequencies stepwise. The loop current must follow according to the following table:
Frequency [Hz]
355
817
1229
1636
2000
• Continue only if test is successful. Stop if any current is out of the accepted limits!
• To finish or cancel the proof test press "Enter". The device will display "Device will be reset
now!" and perform an automatic reboot after pressing the "Enter" key once again.
• Re-attach the electronics housing: Carefully place the electronics housing with the gasket 3
on the device as shown in the figure "Unfixing of the electronics housing".
Pay attention not to pinch the cable! Fasten the cylinder screws 1 including the washers 2
with a bolting torque of 8 Nm.
INFORMATION!
A current value below or above the acceptable limits is an indicator for wear out of the
electronics. Please refer to chapters "Maintenance" and "Availability of service".
INFORMATION!
The frequency test does not consider the sensor element, configuration and drift errors.
22
Nominal current [mA]
4.0
8.5
12.5
16.5
20.0
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OPTISWIRL 4200
Acceptable current range
[mA]
3.96...4.04
8.41...8.58
12.38...12.63
16.30...16.63
19.81...20.21
07/2017 - 4005006101 - AD OPTISWIRL4200 SIL R01 en