KROHNE OPTIWAVE 400 Series Supplementary Instructions Manual page 27

OPTIWAVE X400 / X500
CAUTION!
Proof tests done by the customer must be equivalent or more difficult than the tests given in
•
this section.
Keep a report of each proof test. These reports must include the date, the tests results
•
(performance of the safety function or faults found), a list of approved personnel who did the
test and the report revision number. These reports must be put into storage and made easily
available.
The location of the device and how it is installed on the tank can have an effect on the
•
performance. Obey the installation instructions given in the handbook.
Equipment needed:
• Device with the integrated display option
• Ammeter
• Reference device: an approved level measurement device
PART 1: How to make sure that the device parameters are correct
Do a check of the tank height
• Measure the height of the tank or the silo (or the depth of the pit).
• Make sure that the value shown agrees with the tank height.
• If necessary, go to menu item C1.2 Tank Height
the proof test report.
Do a check of the Current Output 1 Variable
• Make sure that the output function is set to the correct parameter.
• If necessary, go to menu item C.4.1.1 Current Out. 1 Var.
the new parameter in the proof test report.
Do a check of the 4 mA and the 20 mA values for current output 1
• Find the data for the 4 mA and the 20 mA values in the SIS specification.
• If the Scale 4mA value does not agree with the SIS specification, make sure that this data is
correct. If necessary, go to menu item C.4.1.2 0% Range
value in the proof test report.
• If the Scale 20mA value does not agree with the SIS specification, make sure that this data is
correct. If necessary, go to menu item C.4.1.3 100% Range
new value in the proof test report.
Do a check of the output range for current output 1
• Make sure that the current output range is set to "4-20", "4-20; reversed", "3.8-20.5 / NAMUR"
or "3.8-20.5 / reversed".
• If necessary, go to menu item C.4.1.4 Current Out. Range
the new parameter in the proof test report.
Make sure that the polling address is correct
• Do a check of the value in menu item C5.1.2.1 Polling Address
i If the Polling Address value is not set to "000", then the safety function will not operate
correctly.
• If necessary, push [> > > > ] to change the value to "000". Push [^ ^ ^ ^ ] to confirm.
10/2020 - 4008265401 - AD SIL OPTIWAVE x4-x500 R01a en
C1.2 Tank Height C1.2 Tank Height, change the value and record the new value in C1.2 Tank Height
C.4.1.1 Current Out. 1 Var., change the parameter and record C.4.1.1 Current Out. 1 Var. C.4.1.1 Current Out. 1 Var.
C.4.1.2 0% Range C.4.1.2 0% Range, change the value and record the new C.4.1.2 0% Range
C.4.1.3 100% Range, change the value and record the
C.4.1.3 100% Range C.4.1.3 100% Range
C.4.1.4 Current Out. Range, change the parameter and record
C.4.1.4 Current Out. Range C.4.1.4 Current Out. Range
C5.1.2.1 Polling Address C5.1.2.1 Polling Address. C5.1.2.1 Polling Address
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