Malvern Instruments Zetasizer 1000, Basic Reference Manual

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Undefined label
There is a Goto or Gosub which uses a label which you have not included in your Program.
To
correct this check that you have typed the label correctly. Add the required label if necessary.
THEN expected
There is an
If statement which is incomplete. For example:
If X > 0
GoTo 100
End if
Correct to
If X > 0 Then
GoTo 100
End if
TO expected
There is an error in the For statement.
For example:
For I = 1, 10
Correct to
For I=1 To 10
Too many nested FOR loops
For ... Next loops may be nested to a maximum of 25. Your program structure is too complex.
NEXT without FOR
Each block of statements beginning For ... must end with a corresponding Next. The error is most
easily caused when nesting several levels of For ... Next loops or when code has been cut and
pasted incorrectly.
Too many nested GOSUBS
When you call a subroutine you may call another subroutine before returning to the original point
in the Program.
This process can continue up to 25 levels. This error indicates that you have
exceeded the limit. Your Program structure is too complex.
RETURN without GOSUB
The most common cause of this error is not including an End statement. For example
For I = 1 to 10
GoSub 100
Next
100
Load Record I
Print Report
Return
Correct to:
For I = 1 To 10
GoSub 100
MAN0179
Page 2.14 Zetasizer 1000/2000/3000/4000/5000/4700
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