Trouble Shooting - ADTEK MW-5 Operating Manual

TROUBLE SHOOTING

■
Display Issue:
PROBLEM
1.To inspect the input
Active power
range of meter whether
shows ovfl
did match with range in
the field or not?
2.To inspect whether the
input of voltage and
current did over the input
range of meter +120%?
To inspect the current
Display tiny
inputs in each phase
value when it's
whether did have tiny
"no load"
current or not?
1.To inspect the connection
Active power
system of meter whether
shows error
did match with the
value.
system or not?
2.To inspect the parameter
setting whether did
correct or not?
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CHECKING LIST
MW-5 Operating Manual 2012-07-19
Please check wehether did the primary of CT is 1A or 5A?
Please check the input volatges and currents.
A.Please use a clamp meter with suittable measuring range to
check the current in each phase's current of load. (The
measuring range of clamp meter is better in 2 times of rated
current.)
B.Please try to set the [lOcut](A-13) to eliminate the tiny value.
A.Please checks carefully the connection diagram of label on
the meter(1P2W/1P3W/3P3W/ 3P4W).
B.Please check the connection system of meter during the
power on process that will shows
3p3w 3p3w
/
A.Please check the setting of PT's primary and secondary,
[Vunit](A-01): Voltage unit of PT's promary
[pTpri](A-02): Voltage value of PT's promary
[pTsec](A-03): Voltage value of PT's secondary
If it dosen't install PT, the primary and secondary will be
500.0V.
B.Please check the setting of CT's primary and secondary,
[cTpri](A-04): Current value of CT's promary
[cTsec](A-05): Current value of CT's secondary
C.Please check the unit and resolution of Active power
[ Wunit](A-06)
D.Please check the [pVzro](A-07) & [pVspn](A-08) in
[input group] whether did correct or not?
Recommented to clear the [pVspn] in [Sclr](A-09) first.
REMEDY
3p3w
).
3p3w
/ /