KEWTN-3BJ/Q [MSYSTEM]
Plug-in Signal Conditioners K-UNIT;
| 型号： | KEWTN-3BJ/Q |
| 厂家： | 
M-SYSTEM |
| 描述： | Plug-in Signal Conditioners K-UNIT |
| 文件： | 总4页 (文件大小：130K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEL: KEWTN
Plug-in Signal Conditioners K-UNIT
[2] INPUT (unbalanced load)
1: 110 V / 5 A AC
2: 110 V / 1 A AC
WATT TRANSDUCER
(self-powered)
3: 220 V / 1 A AC
4: 220 V / 5 A AC
Functions & Features
A: 100 V / 200 V / 1 A AC (single-phase / 3- wire)
B: 100 V / 200 V / 5 A AC (single-phase / 3- wire)
• Providing a DC output signal in proportion to AC active
power
• Measuring bidirectional power flow
• DC output containing little ripple is ideal for computer
input
[3] OUTPUT
Current
• "Time division multiplication" method accepts distorted
waveforms
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
• Isolation up to 2000 V AC
• High-density mounting
• No auxiliary power source required
Typical Applications
• Centralized monitoring and control of power management
system in a manufacturing facility or building
• SCR – Silicon Controlled Rectifier
50
(1.97)
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)
80
(3.15)
132
(5.20)
mm (inch)
MODEL: KEWTN–[1][2][3][4]
ORDERING INFORMATION
• Code number: KEWTN-[1][2][3][4]
Specify a code from below for each of [1] through [4].
(e.g. KEWTN-11A/Q)
[4] OPTIONS
blank: none
/Q: With options (specify the specification)
• Calibration range (e.g. -750 – +750 W)
• VT ratio, CT ratio (e.g. VT 3300 / 110 V, CT 250 / 5 A)
• Special DC output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
TERMINAL SCREW MATERIAL
/S01: Stainless steel
[1] CONFIGURATION
1: 3-phase / 3-wire
2: Single-phase / 2-wire
3: Single-phase / 3-wire
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals
Screw terminal: Chromated steel (standard) or stainless
KEWTN SPECIFICATIONS
ES-3671 Rev.2 Page 1/4
http://www.m-system.co.jp/
MODEL: KEWTN
steel
Offset: Max. 1.5 times span
Housing material: Flame-resistant resin (black)
Isolation: Voltage input to current input to output
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)
Load resistance: Output drive 12 V max.
■ DC Voltage: -10 – +12 V DC
Minimum span: 5 mV
Offset: Max. 1.5 times span
Load resistance: Output drive 1 mA max. at ≥ 0.5 V
■ OPERATION DIAGRAM (example)
OUT
20 mA
OUT
10 V
INPUT SPECIFICATIONS
Frequency: 50 or 60 Hz
12
4
5
• Voltage Input
Operational range: 85 – 110 % of rating
Overload capacity: 150 % of rating for 10 sec., 110 %
continuous
0
500
1000 W
0
500
1000 W
• Current Input
OUT
20 mA
OUT
+10 V
Operational range: 0 – 120 % of rating
Overload capacity: 1000 % of rating for 3 sec., 200 % for 10
sec., 120 % continuous
12
4
0
■ How to determine Wattage Range
Calibration Range [W] = Measuring Wattage ÷ ((VT Ratio) ×
(CT Ratio))
-10 V
-1000 W
-1000 W
0
+1000 W
0
+1000 W
Check that the required calibration range is within the
available range in the table. Specify this range when
ordering.
INSTALLATION
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 85 %RH (non-condensing)
Mounting: Surface or DIN rail
[Example]
3-phase / 3-wire, measuring wattage 750 kW,
VT 3300/110 V, CT 250/5 A
Weight: 450 g (0.99 lb)
750 × 10 [W] ÷ ((3300÷110) × (250÷5)) = 500 [W]
3
I INPUT RANGE
• 3-phase / 3-wire
PERFORMANCE in percentage of span
Accuracy: ±0.5 % (at 23°C ±10°C or 73.4°F ±18°F,
45 – 65 Hz)
BURDEN (VA)
VOLT. CURR.
INPUT
AVAILABLE
RANGE
STD.RANGE
Response time: ≤ 2 sec. (0 – 100 % ±1 %)
Ripple: 0.5 %p-p max.
110V/1A
110V/5A
220V/1A
220V/5A
200 W
000 W
0.1/ph
P1: 2.5
100
500
–
–
–
–
240
1200 W
480
2400 W
W
P3: 0.2
1
0.5/ph
400 W
0.1/ph
P1: 2.5
200
W
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(voltage input to current input to output to ground)
Impulse withstand voltage: 1.2 / 50 μsec., ±5 kV
(input to output or ground)
P3: 0.4
2
000 W
0.5/ph
1000
• Single-phase / 2-wire
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
2.5
0.5
0.1
2.5
0.5
1
000 W
• Single-phase / 3-wire
BURDEN (VA)
VOLT. CURR.
AVAILABLE
RANGE
INPUT
STD.RANGE
200 W
000 W
200V/1A
200V/5A
0.1/ph
P1: 2.5
100
500
–
–
240 W
P2: 0.2
1
0.5/ph
1200 W
OUTPUT SPECIFICATIONS
■ DC Current: 0 – 20 mA DC and ± 1 mA
Minimum span: 1 mA
KEWTN SPECIFICATIONS
ES-3671 Rev.2 Page 2/4
http://www.m-system.co.jp/
MODEL: KEWTN
CONNECTION DIAGRAM
■ 3-PHASE/3-WIRE
■ SINGLE-PHASE/2-WIRE
SOURCE
3
SOURCE
1
1
2
2
VT
VT
FUSE
FUSE
U
V
u
v
P1
P2
U
u
P1
P2
P3
3
9
4
1
2
5
6
1
2
+
–
+
–
OUTPUT
OUTPUT
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
l
l
L
L
LOAD
LOAD
*CT Protector (model: CTM) attached to these terminals.
*CT Protector (model: CTM) attached to these terminals.
■ SINGLE-PHASE/3-WIRE
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
l
l
L
L
LOAD
*CT Protector (model: CTM) attached to these terminals.
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.
KEWTN SPECIFICATIONS
ES-3671 Rev.2 Page 3/4
http://www.m-system.co.jp/
MODEL: KEWTN
TERMINAL ASSIGNMENTS unit: mm (inch)
CT PROTECTOR
(model: CTM)
Positions of CTM
2
1
2
KEWTN-2
1
2
KEWTN-1, 3
8
7
6
5
4
9
3
2
10 11
1
Specifications are subject to change without notice.
KEWTN SPECIFICATIONS
ES-3671 Rev.2 Page 4/4
http://www.m-system.co.jp/
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