Panasonic KW1M Eco-Power METER, User Manual

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KW1M Eco
－
POWER METER
45
8.5 Dedicated Current Transformer Specifications
Model No AKW4801C AKW4802C AKW4803C AKW4804C
Primary side rated current 5A / 50A 100A 250A 400A
Secondary side rated
current
1.67mA / 16.7mA 33.3mA 125mA 200mA
Winding (Turn) 3000 3000 2000 2000
Ratio error
±
2.0% F.S.
Hole Dia (mm)
φ
10
φ
16
φ
24
φ
36
Breakdown voltage(initial)
AC1000V/1min
（ Between through hole
and output lead wire
）
AC2000V/1min
（ Between through hole
and output lead wire
）
Insulation resistance (initial) Min. 100M Ω
(at DC500V) (Between through hole and output lead wire)
Functional
10 ～ 55Hz (1 cycle/ minute) single amplitude of 0.15mm
(10 min. on X,Y and Z axes) Vibration
resistance
Destructive
10
～
55Hz (1 cycle/ minute) single amplitude of 0.375mm
(1 hrs. on X,Y and Z axes)
Functional Min. 98m/s
2
(4 times on X,Y and Z axes) Shock
resistance
Destructive Min. 294m/ s
2
(5 times on X,Y and Z axes)
Output protection level
±
7.5V with clamp element
±
3.0V with clamp element
Permissible
clamping frequency
Approx. 100 times
Ambient temperature -10 to +50
℃
(without frost and non-condensing)
Storage temperature -20 to +60
℃
(without frost and non-condensing)
Ambient humidity 35
～
80%RH
（
at 20
℃
non-condensing
）
Weight (with relay cable) Approx. 60g Approx. 85g Approx. 215g Approx. 315g
Note) Dedicated current transformers (CT), AKW4801C, 4802C, 4803C, 4804C, are dedicated
for low voltage under 440V. They can not be used for high voltage circuit. In case
measuring high voltage circuit, make a 2-step construction by combination of a
commercial CT of secondary side current 5A for high voltage and the dedicated CT for
5A (AKW4801C).
8.6 Self-diagnostic function
If an error occurs, the following indication will be given.
Indicator Meaning Output status To recover
Err0 CPU error Turn the power off and then on again.
Err1 Memory error*
OFF
EEP-ROM life ended. Replace the unit.
*Includes the possibility that the EEP-ROM’s life has expired.
8.7 Power Failure Memory
Eco-POWER METER memories integrated electric power and working status to internal EEP-ROM
until when power supply is off. (Power failure guarantee)
And every time to change each setting, each setting value is memorized to internal EEP-ROM at the
same time. Therefore, change setting frequently makes EEP-ROM’s life short. Avoid to usage like
this.
*Especially be careful if you set by communication.