IM 253401-01E
15-1
15
Specifications
Chapter 15 Specifications
15.1 Input
Item
Input circuit type
Rated inputs (range rms)
Input impedance
Instantaneous maximum allowable
input for 20 ms, 1 cycle
Instantaneous maximum allowable
input for 1 s
Continuous maximum allowable input
Continuous maximum common mode
voltage (at 50/60 Hz)
Common mode rejection ratio at 600
Vrms between input terminals and case
Input terminals
A/D conversion
Range switching
Automatic range switching
Measurement mode switching
Voltage (V)
Resistive voltage divider
15/30/60/150/300/600V
Input resistance approx.2M
Ω
, Input capacitance approx.13 pF
The peak is 2.8 kV or the RMS value is 2.0 kV, whichever is less.
The peak is 2.0 kV or the RMS value is 1.5 kV, whichever is less.
The peak is 1.5 kV or the RMS value is 1.0 kV, whichever is less.
Binding posts
600 Vrms (when the protective cover for the output connector is used)CAT II,
400 Vrms (when the protective cover for the output connector is removed)CAT II
50/60 Hz, better than -80 dB (
±
0.01% of range maximum)
Voltage input terminals : short, Current input terminals : open
Reference value: 50 kHz max.
±
{(maximum range rating)/(range rating)
×
0.001
×
f% of range} or less; 0.01% or more; the unit f: kHz
Simultaneous sampling of voltage and current inputs; Resolution: 12 bits; Maximum conversion rate: approx. 22
µ
s (approx. 45 kHz)
Range can be selected manually, automatically or by communication control.
Range up: When the measured value exceeds 110% of the rated range or the peak value exceeds approximately 300% of the rated range
Range down: When the measured value becomes less than 30% of the rated range and the peak value is less than approximately 300% of the
subordinate range
The following modes can be set manually or by communication control:
RMS: True RMS measurement for both voltage and current; V MEAN: Rectified Mean Calibrated to an RMS sine wave measurement for voltage,
and true RMS measurement for current; DC: Mean value measurement for voltage and current
Floating input
Current (A)
Shunt input
Direct input: 0.5/1/2/5/10/20 A
External input (optional): 2.5/5/10 V or 50/100/200 mV
Direct input: approx. 6 m
Ω
+ approx. 0.1
µ
H
External input: 2.5/5/10 V - approx. 100 k
Ω
; 50/100/200 mV - approx. 20 k
Ω
The peak is 450 A or the RMS value is 300 A, whichever is less.
External input: Peak value is 10 times the range or less.
The peak is 150 A or the RMS value is 40 A, whichever is less.
External input: Peak value is 10 times the range or less.
The peak is 100 A or the RMS value is 30 A, whichever is less.
External input: Peak value is 5 times the range or less.
Direct input: Large binding posts, External input: Safety terminals
15.2 Measurement Functions
Item
Method
Frequency range
Crest factor
Display accuracy
Accuracy (within 3 months after calibration)
(Conditions)
Temperature: 23
±
5
°
C
Humidity: 30% to 75% R.H.
Supply voltage: Specified Voltage
±
5%
Input waveform: Sine wave
Common mode voltage: 0 V DC
Filter: ON at 200 Hz or less
Scaling: OFF
This accuracy are guaranteed by
YOKOGAWA calibration system.
Note: The unit f in accuracy expressions is kHz.
Effect of power factor
Note: The
ϕ
is the phase angle between the
voltage and current, and the f is frequency.
Effective input range
Accuracy (within 12 months after calibration)
Temperature coefficient
Display update rate
Voltage/current
Effective power
cos
ϕ
= 0
45 Hz
≤
f
≤
66 Hz:add
±
0.25% of range
Reference data (up to 50kHz): add
±
{(0.23 + 0.4
×
fkHz)% of range}
1 > cos
ϕ
> 0
add the product of tan
ϕ
and the effect on cos
ϕ
= 0.
With the input range at 10% to 110%, the above specified accuracy is valid. With the input range at 110% to 130%, the above specified reading
accuracy increased 0.5 times is added to the accuracy.
The above specified reading accuracy increased 0.5 times is added to the accuracy (within 3 months after calibration).
±
0.03% of range/
°
C at 5 to 18
°
C, 28 to 40
°
C
4 times/s
Digital sampling method, summation averaging method
DC, 10 Hz to 50 kHz
"3" at rated input
* DC:
±
0.2% of range is added if the 0.5/1 A range is selected.
* DC:
±
0.2% of range is added if the 0.5/1 A range is selected.
DC :
10Hz
≤
f < 45Hz :
45Hz
≤
f
≤
66Hz :
66Hz < f
≤
1kHz :
1kHz < f
≤
10kHz :
10kHz < f
≤
20kHz :
Reference value
20kHz < f
≤
50kHz :
±
(0.2 % of rdg + 0.2% of rng)*
±
(0.3% of rdg + 0.2% of rng)
±
(0.15% of rdg + 0.1% of rng)
±
(0.3% of rdg + 0.2% of rng)
±
(0.2% of rdg + 0.3% of rng)
±
{(0.05
×
f)% of rdg}
±
(0.5% of rdg + 0.5% of rng)
±
[{0.15
×
(f-10)}% of rdg]
±
(0.5% of rdg + 0.5% of rng)
±
[{0.15
×
(f-10)}% of rdg]
DC :
10Hz
≤
f < 45Hz :
45Hz
≤
f
≤
66Hz :
66Hz < f
≤
1kHz :
1kHz < f
≤
10kHz :
10kHz < f
≤
20kHz :
Reference value
20kHz < f
≤
50kHz :
±
(0.3% of rdg + 0.3% of rng)*
±
(0.5% of rdg + 0.3% of rng)
±
(0.25% of rdg + 0.1% of rng)
±
(0.5% of rdg + 0.3% of rng)
±
(0.3% of rdg + 0.5% of rng)
±
{(0.08
×
f)% of rdg}
±
(0.8% of rdg + 0.8% of rng)
±
[{0.19
×
(f-10)}% of rdg]
±
(0.8% of rdg + 0.8 % of rng)
±
[{0.25
×
(f-10)}% of rdg]
15.3 Frequency Measurement
Input:
V1, V2, V3, A1, A2, A3
Operating principle:
Reciprocal counting method
Frequency ranges:
10 Hz to 50 kHz
Accuracy:
±
(0.1% of rdg + 1 digit)
Minimum input is more than 30% of rated range.
When an input frequency is less than 200Hz, FILTER must be
ON to obtain the specification accuracy.
Minimum input frequency is more than 20% of frequency
measurement range.
15.4 Communication
Communication Specifications (GP-IB & RS-232-C)
GP-IB:
Electrical specifications:
IEEE St’d 488.2-1987
Mechanical specifications: IEEE St’d 488.2-1987
Interface function:
SH1, AH1, T5, L4, SR1, RL1, PP0,
DC1,DT1, C0
RS-232-C:
Transmission mode: Start stop synchronization
Baud rate: 75, 150, 300, 600, 1200, 2400, 4800, 9600 bps
