ABB REF601 CEI - Test - Calibration

1MDU07205-YN rev. F
REF601 CEI
User’s manual
52
5.2.9.1 Sub menu – Calibration
Menu structure & LHMI Navigation
It is required to calibrate the fi xed error in the measurement chain because of
attenuation resistor in Line 1, Line 2 & Line 3 and also to calibrate the earth channel.
Interactive user screens provide step-by-step procedure for calibration process.
Calibration process is divided into subsections based on the type of CT selected.
User can select or skip calibration for particular CT.
In case of no selection during each calibration point from user i.e. either Yes or No,
automatically next screen will appear after timeout of 5sec.
Figure 33 shows complete calibration process fl ow.
Fig. 33- Test sub menu calibration with display
A
T e s t T e s t
C a l i b r a t i o n : N o
C a l i b r a t e I n 4 0
Y e s : U P N o : D O W N
Y e s
if user selects
C a l i b S t a r t e d
p l e a s e w a i t . . .
C a l i b D o n e
f o r I n 4 0
C a l i b F a u l t
f o r I n 4 0
C a l i b r a t e I n 8 0
Y e s : U P N o : D O W N
C a l i b S t a r t e d
p l e a s e w a i t . . .
C a l i b D o n e
f o r I n 8 0
C a l i b F a u l t
f o r I n 8 0
or
Y e s
if user selects
N o
if user selects
Y e s
if user selects
N o
if user selects
or
or times out
or times out