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AT520/AT520SE/AT520L/AT520M User’s Guide
20
%
Deviation
display
High/In/Low The results of comparator
Step3: The VFD no.2 line will display the deviation value.
ABS = Measurement Value – Nominal Value
% =
ABS / Nominal Value * 100
4.10
Lock
out
the
keypad
Step1: Under measurement mode
Step2: Press Shift Key Lock key to lock/unlocked the keypad.
Step3: The VFD no.2 line will display the deviation value.
indicator lit means the keypad is locked.