KEWT-23B-J 概述
Plug-in Signal Conditioners K-UNIT
KEWT-23B-J 数据手册
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PDF下载MODEL: KEWT
4: 220 V / 5 A AC
Plug-in Signal Conditioners K-UNIT
A: 100 V / 200 V / 1 A AC (single-phase / 3- wire)
B: 100 V / 200 V / 5 A AC (single-phase / 3- wire)
WATT TRANSDUCER
Functions & Features
[3] OUTPUT
Current
• Providing a DC output signal in proportion to AC active
power
A: 4 – 20 mA DC (Load resistance 600 Ω max.)
B: 2 – 10 mA DC (Load resistance 1200 Ω max.)
C: 1 – 5 mA DC (Load resistance 2400 Ω max.)
D: 0 – 20 mA DC (Load resistance 600 Ω max.)
E: 0 – 16 mA DC (Load resistance 750 Ω max.)
F: 0 – 10 mA DC (Load resistance 1200 Ω max.)
G: 0 – 1 mA DC (Load resistance 12 kΩ max.)
J: 0 – 5 mA DC (Load resistance 2400 Ω max.)
GW: -1 – +1 mA DC (Load resistance 10 kΩ max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
• Measuring bidirectional power flow
• DC output containing little ripple is ideal for computer
input
• "Time division multiplication" method accepts distorted
waveforms
• Isolation up to 2000 V AC
• High-density mounting
Typical Applications
• Centralized monitoring and control of power management
system in a manufacturing facility or building
• SCR – Silicon Controlled Rectifier
1: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3: 0 – 1 V DC (Load resistance 1000 Ω min.)
4: 0 – 10 V DC (Load resistance 10 kΩ min.)
5: 0 – 5 V DC (Load resistance 5000 Ω min.)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
1W: -10 – +10 mV DC (Load resistance 10 kΩ min.)
2W: -100 – +100 mV DC (Load resistance 100 kΩ min.)
3W: -1 – +1 V DC (Load resistance 1000 Ω min.)
4W: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W: -5 – +5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)
50
(1.97)
80
(3.15)
132
(5.20)
mm (inch)
MODEL: KEWT–[1][2][3]–[4][5]
[4] AUXILIARY POWER SUPPLY
AC Power
ORDERING INFORMATION
• Code number: KEWT-[1][2][3]-[4][5]
Specify a code from below for each of [1] through [5].
(e.g. KEWT-11A-C/Q)
B: 100 V AC
C: 110 V AC
D: 115 V AC
F: 120 V AC
• Calibration range (e.g. -750 – +750 W)
• VT ratio, CT ratio (e.g. VT 3300 / 110 V, CT 250 / 5 A)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
G: 200 V AC
H: 220 V AC
J: 240 V AC
DC Power
R: 24 V DC
V: 48 V DC
[1] CONFIGURATION
1: 3-phase / 3-wire
P: 110 V DC
2: Single-phase / 2-wire
3: Single-phase / 3-wire
[5] OPTIONS (multiple selections)
Custom specification
(Refer to the custom specification list for difference
of specification and combination of code numbers.)
blank: none
[2] INPUT (unbalanced load)
1: 110 V / 5 A AC
2: 110 V / 1 A AC
/X1: Input range
3: 220 V / 1 A AC
Other Options
KEWT SPECIFICATIONS
ES-3666 Rev.6 Page 1/6
http://www.m-system.co.jp/
MODEL: KEWT
I INPUT RANGE
• 3-phase / 3-wire
blank: none
/Q: Option other than the above (specify the specification)
BURDEN (VA)
VOLT. CURR.
INPUT
AVAILABLE
RANGE
STD.RANGE
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
110V/1A
110V/5A
220V/1A
220V/5A
200 W
000 W
0.2
0.1/ph
0.5/ph
0.1/ph
0.5/ph
100
500
–
–
–
–
240
1200 W
480
2400 W
W
/phase
1
400 W
200
W
0.4
/phase
2
000 W
1000
/C02: Polyurethane coating
/C03: Rubber coating
• Single-phase / 2-wire
TERMINAL SCREW MATERIAL
/S01: Stainless steel
BURDEN (VA)
VOLT. CURR.
INPUT
AVAILABLE
RANGE
STD.RANGE
110V/1A
110V/5A
220V/1A
220V/5A
100 W
500 W
200 W
50
250
100
500
–
–
–
–
120 W
600 W
240 W
1200 W
0.1
0.2
0.5
GENERAL SPECIFICATIONS
Construction: Plug-in
0.1
0.4
0.5
1
000 W
Connection: M3.5 screw terminals
Screw terminal: Chromated steel (standard) or stainless
steel
• Single-phase / 3-wire
BURDEN (VA)
VOLT. CURR.
AVAILABLE
RANGE
INPUT
STD.RANGE
Housing material: Flame-resistant resin (black)
Isolation: Voltage input to current input to output to
auxiliary power
200 W
000 W
200V/1A
200V/5A
0.2
0.1/ph
0.5/ph
100
500
–
–
240 W
/phase
1
1200 W
Computation: Time division multiplication
Overrange output: Approx. -10 to +120 % at 1 – 5 V
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
OUTPUT SPECIFICATIONS
■ DC Current: 0 – 20 mA DC and ± 1 mA
Minimum span: 1 mA
Offset: Max. 1.5 times span
Load resistance: Output drive 12 V max.
■ DC Voltage: -10 – +12 V DC
Minimum span: 5 mV
INPUT SPECIFICATIONS
Frequency: 50 or 60 Hz
• Voltage Input
Offset: Max. 1.5 times span
Operational range: 0 – 120 % of rating
Overload capacity: 150 % of rating for 10 sec., 120 %
continuous
Load resistance: Output drive 1 mA max. at ≥ 0.5 V
■ OPERATION DIAGRAM (example)
OUT
20 mA
OUT
10 V
• Current Input
Operational range: 0 – 120 % of rating
Overload capacity: 1000 % of rating for 3 sec., 200 % for 10
sec., 120% continuous
12
4
5
■ How To Determine Wattage Range
Calibration Range [W] = (Measuring Wattage) ÷
((VT Ratio) × (CT Ratio))
0
500
1000 W
0
500
1000 W
OUT
20 mA
OUT
+10 V
Check that the required calibration range is within the
available range in the table.
[example]
12
4
0
3-phase / 3-wire, measuring wattage 750 kW,
VT 3300 / 110 V, CT 250 / 5 A
-10 V
-1000 W
(750 × 10 [W]) ÷ ((3300 ÷ 110) × (250 ÷ 5)) = 0 – 500 [W]
3
-1000 W
0
+1000 W
0
+1000 W
INSTALLATION
Auxiliary power supply
•AC: Operational voltage range: rating -15/+10 %,
50/60 Hz, approx. 2 VA
•DC: Operational voltage range: rating ±10 %,
or 85 – 150 V for 110 V rating, ripple 10 %p-p max.,
KEWT SPECIFICATIONS
ES-3666 Rev.6 Page 2/6
http://www.m-system.co.jp/
MODEL: KEWT
approx. 2 W (18 mA at 110 V)
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 85 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 450 g (0.99 lb)
PERFORMANCE in percentage of span
Accuracy: ±0.5 % (at 23°C ±10°C or 73.4°F ±18°F,
45 – 65 Hz)
Response time: ≤ 2 sec. (0 – 100 % ±1 %)
Ripple: 0.5 %p-p max.(The output ripple may increase when
there is great difference between the frequencies of input
signal and power supply)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(voltage input to current input to output to auxiliary power
to ground)
Impulse withstand voltage: 1.2 / 50 μsec., ±5 kV
(input to output or ground)
CONNECTION DIAGRAM
■ 3-PHASE/3-WIRE
■ SINGLE-PHASE/2-WIRE
SOURCE
SOURCE
3
1
2
1
2
VT
VT
FUSE
FUSE
U
V
u
P1
P2
U
u
P1
P2
P3
3
9
4
1
2
5
6
1
2
+
–
+
–
OUTPUT
OUTPUT
V
V
v
v
v
U
u
K
K
K
L
k
1S
1L
3S
3L
k
l
1S
1L
5
6
7
8
7
8
k
CT
*
*
*
CT
10
11
10
11
U(+)
V(–)
U(+)
V(–)
l
l
L
L
AUXILIARY POWER**
AUXILIARY POWER**
LOAD
*CT Protector (model: CTM) attached to these terminals.
LOAD
*CT Protector (model: CTM) attached to these terminals.
■ SINGLE-PHASE/3-WIRE
**The transducer can be powered from the input voltage
when the voltage is sufficiently stable and meets within
the range of auxiliary power supply of the unit specified
in the data sheet/instruction manual.
SOURCE
N 2
1
VT
FUSE
U
u
P1
P0
P2
3
9
4
1
2
+
–
OUTPUT
V
V
v
v
U
u
K
K
k
1S
1L
2S
2L
5
6
7
8
k
*
*
CT
10
11
U(+)
V(–)
l
l
L
L
AUXILIARY POWER**
LOAD
*CT Protector (model: CTM) attached to these terminals.
KEWT SPECIFICATIONS
ES-3666 Rev.6 Page 3/6
http://www.m-system.co.jp/
MODEL: KEWT
EXTERNAL DIMENSIONS unit: mm (inch)
CLAMP
(top & bottom)
7.8 (.31)
DIN RAIL
35mm wide
8
9
7
6
5
4
2
–4.5 (.18) dia.
MTG HOLE
25 (.98) deep
3
2
10 11
1
11
–M3.5
SCREW
50 (1.97)
103 (4.06)
132 (5.20)
40 (1.57)
50 (1.97)
[3.3 (.13)]
• When mounting, no extra space is needed between units.
TERMINAL ASSIGNMENTS unit: mm (inch)
CT PROTECTOR
(model: CTM)
Positions of CTM
2
1
2
KEWT-2
1
2
KEWT-1, 3
8
7
6
5
4
9
3
2
10 11
1
Specifications are subject to change without notice.
KEWT SPECIFICATIONS
ES-3666 Rev.6 Page 4/6
http://www.m-system.co.jp/
MODEL: KEWT
CUSTOM SPECIFICATION LIST
Refer to the following pages for each detailed custom specification.
Custom specification: Option /X1
■ Major specification changes
Input 0%: -65 - 0 % of input 100% (W)
KEWT SPECIFICATIONS
ES-3666 Rev.6 Page 5/6
http://www.m-system.co.jp/
MODEL: KEWT
CUSTOM SPECIFICATION : OPTION /X1
Major specification changes
Input 0%: -65 - 0 % of input 100% (W)
MODEL: KEWT–[1][2][3]-[4][5]
Same as standard specification (without customization)
except followings.
Refer to standard specification pages.
ORDERING INFORMATION
• Code number: KEWT–[1][2][3]-[4][5]
For each of [1] through [5] same code as standard
specification is available.
Be sure to specify /X1 of option [5].
(e.g. KEWT-11A-C/X1/Q)
Refer to standard specification pages.
SPECIFICATION CHANGES
■ Input specifications
• Available input range
The value for 0% is within -65 - 0 % of input 100%.
e.g. Input range: -75 to 1000 [W]
-75 [W] ÷ 1000 [W] × 100 = -7.5 [%]
■ OPERATION DIAGRAM (example)
OUTPUT
20 mA
OUTPUT
+10 V
12
4
0
INPUT
+1000 W
INPUT
+1000 W
-10
-1000
-1000
-75
0
-75 0
KEWT SPECIFICATIONS
ES-3666 Rev.6 Page 6/6
http://www.m-system.co.jp/
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