IM 253401-01E
15-3
15
Specifications
Chapter 15 Specifications
15.10 External Input (optional)
Either /EX1 or /EX2 can be selected as a voltage-output-type current sensor.
/EX1:
2.5/5/10 V
/EX2:
50/100/200 mV
Specifications:
Refer to item “Input.”
15.11 Comparator Output (optional)
Output method:
Normally open and normally closed relay contact outputs (one pair)
Number of output channels and channel setup: 4 (Can be set for each channel.)
Contact capacity:
24 V/0.5 A
D/A output (4 channels): Refer to item “D/A Output (Optional).”
15.12 External Control and Input Signals
(in combination with the D/A converter and comparator options)
External Control and Input/Output signals
EXT-HOLD, EXT-TRIG, EXT-START, EXT-STOP, EXT-RESET,
INTEG-BUSY
(However, the /DA4 or /DA12 options must be installed. Only EXT-
HOLD and EXT-TRIG are available if the /CMP option is installed.)
Input level:-
TTL negative pulse
15.13 General Specifications
Warm-up time:
Approx. 30 min.
Ambient temperature and humidity range: 5 to 40
°
C, 20% to 80% R.H. (no condensation)
Operating altitude
2000m or below
Insulation resistance:
Between voltage input terminals and case
Between current input terminals and output terminals
Between voltage input terminals and current input terminals
Between voltage input terminals of each element
Between current input terminals of each element
Between voltage input terminals and power plug
Between current input terminals and power plug
Between case and power plug
Above: 50 MW or more at 500 V DC
Withstanding voltage:
Between voltage input terminals and case
Between current input terminals and output terminals
Between voltage input terminals and current input terminals
Between voltage input terminals of each element
Between current input terminals of each element
Between voltage input terminals and power plug
Between current input terminals and power plug
Above: AC 3700 V for 1 minute at 50/60 Hz
Between case and power plug: AC 1500 V for 1 minute at 50/60 Hz
Power supply:
Any power supply voltage between 100 and 240 V; frequency: 50/
60 Hz
Vibration test condition:
Sweep test - Frequency:
8 to 150 Hz sweep, all 3 directions for
1 minute
Endurance test - Frequency: 16.7 Hz, all 3 directions; amplitude of
4 mm for 2 h
Impact condition:
Impact test: Acceleration at 490 m/s
2
, all 3 directions
Free-fall test - Height: 100 mm, 1 time for each 4 sides
Power consumption:
WT110: 30 VA maximum; WT130: 50 VA maximum (Power supply :
240V)
WT110: 20 VA maximum; WT130: 32 VA maximum (Power supply :
100V)
External dimensions:
WT110: Approx. W
×
H
×
D : 213
×
88
×
350 (mm),
8-3/8
×
3-1/2
×
13-3/4 (inch)
WT130: Approx. W
×
H
×
D : 213
×
132
×
350 (mm),
8-3/8
×
5-3/16
×
13-3/4 (inch)
Weight:
WT110: Approx. 3.0 (kg), 6.6 (lbs)
WT130: Approx. 5.0 (kg), 11.0 (Lbs)
Accessories:
Power cord: UL/CSA, VDE, SAA or BS standard 1 pc
Spare fuse (for WT130 only)
24-pin connector
User’s Manual
Rubber feed
Emission*
Complying Standard:EN55011-Group1, Class A
This is a Class A product for industrial environment. In a
domestic environment, this product may cause radio
interference in which cause the user may be required to take
adequate measures.
Cable Condition:
Measuring Input
WT100
To bundle the wires between source and load with
Ferrite Core (A1179MN).
WT130
To bundle the wires between source and load for each
phase and to separate the input signal wires by less
than 50 mm between each phase and neutral line.
External Senser Input (installed /EX1 or /EX2 option)
500 mm max
External Input/Output Signals (installed /DA4, /DA12, /CMP option)
To use shielded wires
Immunity*
Complying Standard: EN50082-2:1995
Susceptibility Under Immunity Condition
Measuring Input
:
±
5 % of range max
DA Output
:
±
40 % of range max
Testing Condition
Voltage
: range 150 V Input, 100 V/50 Hz
Current
: range 1 A Input, 1 A/50 Hz
Safety standard*
Complying Standard :EN61010
Overvoltage Category II
Pollution degree 2
* Applies to products manufactured after Jan. 1997 having the CE Mark. For all other
products, please contact your nearest YOKOGAWA representative as listed on the back
cover of this manual.
15.14 Total Harmonic Analysis Function (optional)
Method:
synchronization to the fundamental frequency by using a phase
locked loop (PLL) circuit
Frequency range:
Fundamental frequency between 40 Hz and 440 Hz
Maximum reading:
9999
Items to be analyzed:
V1, V2, V3, A1, A2, A3, W1, W2, W3, deg1, deg2, deg3
Each harmonic components, Total Vrms, Total Arms, Total
effective power, PF of the fundamental, Phase-angle of
fundamental, For each harmonic phase-angle related to the
fundamental, Total harmonic distortion ratio in %, and contents
ratio in %.
However, a simultaneous analysis can be made for a specified
input module.
Sampling speed/method:
The sampling speed depends on the fundamental frequency to be
input:
Input
frequency
range
Sampling
frequency
Window
up to the n'th
harmonic
Order
40
≤
f
<
70Hz
70
≤
f
<
130Hz
130
≤
f
<
250Hz
250
≤
f
<
440Hz
f
×
512Hz
f
×
256Hz
f
×
128Hz
f
×
64Hz
1 period of f
2 period of f
4 period of f
8 period of f
50
50
50
30
FFT number of points :
512 points FFT
FFT calculation accuracy:32 bits
Window:
Rectangular window
Display update interval:
Approx. 3 s
Accuracy:
±
0.2% of range is added to the normal display accuracy.
