Model KM1/KE1 combination list
A-3
Appendix
Main part specifications
KM1
KE1
Model
Item
PMU1A (Electric power)
PMU2A (Power
two-system)
EMU8A (Pulse/temperature)
CTD8E (CT expansion)
Voltage
±1.0% FS ±1 digit
* However, intra Vtr voltage shall be ±2.0% FS ±1digit under the same
conditions.
Current
±1.0% FS ±1 digit
* However, S-phase current of 3-phase 3-wire and N-phase current shall be
±2.0% FS ±1 digit under the same conditions.
±1.0% FS ±1 digit
* However, S-phase current of
3-phase 3-wire and N-phase
current shall be ±2.0% FS ±1
digit under the same
conditions.
Electric power
(Active power,
reactive power)
Active power, reactive power
±2.0% FS ±1 digit (power factor)
Active power, reactive power
±2.0% FS ±1 digit (power
factor)
Frequency
±0.3 Hz ±1 digit
Power factor (*2)
±5.0% FS
(Ambient temperature of 23°C, standard input, standard frequency, power
factor = range of 0.5 to 1 to 0.5)
±5.0% FS (Ambient
temperature of 23°C,
standard input, standard
frequency, power factor =
range of 0.5 to 1 to 0.5)
Accuracy
(*1)
Temperature
After passage of 2 hours after power
distribution, ±5°C
(However, after compensation based
on the environment of the ambient
temperature)
Influence by temperature
±1.0% FS (Ratio to measurement value at ambient temperature of 23°C, with
standard input, standard frequency, and power factor of 1, within the working
temperature range)
±1.0%FS (Ratio to measurement
value at ambient temperature of
23°C within the working temperature
range)
±1.0%FS (Ratio to
measurement value at
ambient temperature of 23°C,
with standard input, standard
frequency, and power factor
of 1, within the working
temperature range)
Influence by frequency
±1.0% FS (Ratio to measurement value at ambient temperature of 23°C, with
standard input, standard frequency, and power factor of 1, within the standard
frequency range of ±5 Hz)
±1.0%FS (Ratio to
measurement value at
ambient temperature of 23°C,
with standard input, standard
frequency, and power factor
of 1, within the standard
frequency range of ±5 Hz)
Influence by higher harmonic
wave
±0.5% FS (Error generated when the 2nd-, 3rd-, 5th-, 7th-, 9th-, 11th-, or
13th-order higher harmonic wave is superimposed over the basic wave at
ambient temperature of 23°C with the content rates of 30% in current and 5%
in voltage)
±0.5% FS (Error generated
when the 2nd-, 3rd-, 5th-,
7th-, 9th-, 11th-, or 13th-order
higher harmonic wave is
superimposed over the basic
wave at ambient temperature
of 23°C with the content rates
of 30% in current and 5% in
voltage)
Low-cut current setting value
Variable in units of 0.1% between 0.1-19.9% of the standard input
Variable in units of 0.1%
between 0.1-19.9% of the
standard input
Sampling frequency
100 ms (with measurement voltage at 50 Hz), 83.3 ms (with measurement
voltage at 60 Hz)
100 ms
100 ms (with measurement
voltage at 50 Hz), 83.3
ms(with measurement voltage
at 60 Hz)
Insulation resistance
Insulation resistance value of 20 M
Ω
(500 VDC)
Voltage withstood
Common: 2000 V for 1 minute, place to which the voltage is applied: Between all terminals as a whole and the case
PMU1A
: Between power supplies as a whole and outputs of RS-485/USB/transistor as a whole
Between all power supplies as a whole and current/voltage inputs as a whole
: Between current/voltage inputs as a whole and outputs of RS-485/USB/transistor as a whole
PMU2A
: Between power supplies as a whole and outputs of RS-485/USB/transistor as a whole
Between all power supplies as a whole and current/voltage inputs as a whole
: Between current/voltage inputs as a whole and outputs of RS-485/USB/transistor as a whole
Between current/voltage input 1 and voltage input 2 as a whole
EMU8A
: Between power supplies as a whole and outputs of temperature input/RS-485/USB/transistor as a whole
CTD8E
: Between current inputs as a whole and USB/relay outputs as a whole
Vibration tolerance
Half amplitude of 0.35 mm, acceleration of 50 m/s
2
Frequency of 10 to 55 Hz, sweeping along three axes, 5 min x 10 times each
Shocks withstood
150 m/s
2
up/down, left/right, front/back in 6 directions, 3 times each
Mass
Approximately 230 g
Memory protection
EEPROM (non-volatile memory) Number of write times: :1 million times
Number of
input points
7
points
Input without
voltage
ON time current: 15 mA or less
ON time residual voltage: 8 V or less
OFF time leakage current of 1.5 mA or
less
Event input
Input with
voltage
H level: 4.75 to 30 VDC
L level: 0 to 2 VDC
Input impedance: Approximately 2 k
Ω
Number of
input points
1
point
Temperature
input
Applicable
thermistor
Model
E52-THE5A
Color code (blue): -50 to 50°C
Color code (black): 0 to 100°C
Combination
Connection to KM1-EMU8A-FLK can support 7 event input points and 1
temperature input point.
Number of
other points
Common to 3 open collector points (OUT1, OUT2, OUT3)
Output
capacity
30 VDC ,30 mA
ON residual
voltage
1.2 V or less
OFF time
leakage
current
100
μ
A or less
Integrated
power
amount
pulse output
1 pulse output when the power amount in the set pulse output voltage is
reached
1,10,100,1 k,2 k,5 k,10 k,20 k,50 k,100 k (W
x
h)
Alarm output
Outputs an alarm based on the set alarm output threshold
Transistor
output
Return
method
Automatic return only