§ BOX TRANSDUCER §TYPE CODE DESIGNATION■ TYPE CODE DESIGNATION● SMALL SIZED AC TRANSDUCER
TT2-90A series(1) TT2 (2) A - (3)(1) Kind of input(2) Kind of outer case and its dimensions

MarkKind of input

A or AEAC current

V or VE

Dimensions (mm)Mark

Material of outer caseAC voltage

91

Fire-retardant ABS resin

120×40×130

W

AC power

92

Fire-retardant ABS resin

120×56×130

WV

Reactive power

S

V-V phase angle

PV-I phase angle

SPPower factor

FFrequency

Length × Width × Height(3) Kind of circuit
MarkKind of circuit

12Single phase 2 wire

13

Single phase 3 wire

33

3 phase 3 wire

34

3 phase 4 wire

● AC TRANSDUCER
TT2-80A series(1) TT2 (2) A (3) – (4)(1) Kind of input
MarkKind of input

AEAC current

VE

AC voltage

W

AC power

MDA

Maximum demand

MDV

Maximum indication voltage

3) For the use of cycle control

Dielectric strength voltage

MarkKindNo markGeneral circuit

CCycle control

AC2,000V (50/60Hz) for 1 min. between input and output(4) Kind of circuit(2) Kind of outer case and its dimensions
MarkKind of circuit

Dimensions (mm)12Single phase 2 wire

Length × Width × Height

13Single phase 3 wireMark

Material of outer case82

Fire-retardant ABS resin

120× 56×130

33

3 phase 3 wire

83

Fire-retardant ABS resin

120×110×130

34

3 phase 4 wire§ BOX TRANSDUCER §AC SPECIAL TRANSDUCER

MAXIMUM DEMAND TRANSDUCER■ Standard specifications
Item

Specification

TypeStandard
Tolerance
Input
Output(loadresistance)
Auxiliary
supplyMDATT2-83A
In conformity with JIS C1111-1989±1%
1A, 5A (product range: 50-300A)
5V
10V
1-5V1mA(≧1kΩ) (≧2kΩ) (≧1kΩ) (≦10kΩ)

PeriodWarm-uptime
OutputrippleInfluence oftemperatureOver current
Overvoltage
Insulation
resistanceWithstandvoltage
Impulsewithstandvoltage
Appearancecolor
Operatingtemperature/humidity
range
Storagetemperature
range
Weight

4-20mA(≦500Ω)AC100/110V ±15% (50/60Hz) ≦3VA
AC 200/220V ±15% (50/60Hz) ≦3VA
DC 100/110V 6W
Time it takes to reach 95% (±2%) of final steady value
1 min, 3 min, 5 min,Times equals period after the power was turned on.
≦1% P-P against output span

MDATT2-83A(120×110×130mm/1.2kg)■ Dimensions (mm)23±20℃ ±1%
Input
40 times 1 sec. 1.2 times continuity
Auxiliary
1.5 times 10 sec. 1.2 times continuity
supplyBetween input terminal/output terminal/auxiliary
supply/outer case (earth)≧50MΩ at DC500V
Between input terminal/output terminal/auxiliary
supply/outer case (earth):
AC2, 000V (50/60Hz) 1 min.
Between electric circuit and outer case (earth)
5kV 1.2/50µs positive/negative polarity 3 times eachBlack (munsell N1.5)■ Connection diagram-10-＋55℃, 30-85%RH-40-＋70℃
Approx. 1.2kg■ Option● With peak-hold output
ItemOutput(load resistance)
Powerconsumption (VA)
Reset methodSpecifications

External switch

Reset time

≧20ms

5V
10V
1-5V
1mA
4-20mA(≧1kΩ) (≧2kΩ) (≧1kΩ) (≦10kΩ) (≦500Ω)

5VA●Non-insulation between demand output and peak output terminals. (Minus common)●Make sure to reset the device before use each time the power is turned on.

■ Dimensions (mm)■ Purchase specifications
When applied continuously a constant
input I, it operates according to exponentialfunction and outputs Io.
The device outputs the average value of
input at 3t.

I0=I(1-e-3t/t0)
Products List①③⑤⑥Type② Input
Output④ Load resistance
Auxiliary supply
Period⑦ Quantity§ BOX TRANSDUCER §AC SPECIAL TRANSDUCER

MAXIMUM INDICATING VOLTAGE TRANSDUCER■ Standard specifications
Item

Specification

TypeStandardTolerance
Input
Output(loadresistance)ResetmethodReset time

MDVTT2-83A
In conformity with JIS C1111-1989±1%
150V, 259V, 300V (product range: 50-300V)

Auxiliary
supplyResponsetime
Outputripple
Influence oftemperature

5V(≧1kΩ)

10V(≧2kΩ)

1-5V(≧1kΩ)

1mA(≦10kΩ)

4-20mA(≦500Ω)External switch (peak hold output)
20ms (peak hold output)
AC100/110V ±15% (50/60Hz) ≦5VA
AC 200/220V ±15% (50/60Hz) ≦5VA
DC 100/110V 8W
0.2 sec.
(time it takes to reach 90% of final steady value)

MDVTT2-83A(120×110×130mm/1.2kg)≦1% P-P against output span

■ Dimensions (mm)23±20℃ ±1%
2 times 10 sec. 1.2 times
continuity
1.5 times 10 sec. 1.2 times
Auxiliary supply
continuity
Between electric circuit andouter case (earth)
Between input terminal and≧50MΩ
output/reset terminal
DC500Vmegger
Between input/output/reset
and auxiliary supply terminal
Between reset terminal andoutput
Between electric circuit andouter case (earth)
AC2000V
Between input terminal and(50/60Hz)
No
output/reset terminal
1 min.
abnormality
Between input/output/reset
and auxiliary supply terminal
Between reset terminal and
AC500Voutput1min.
Between electric circuit
5kV 1.2/50µs
and outer case (earth)positive/No
negative
Between input/ output/abnormalitypolarity 3
reset and auxiliary
times eachsupply terminal
Input

Overvoltage

Insulation
resistanceWithstandvoltage

Impulsewithstandvoltage■ Connection diagram

AppearanceBlack (munsell N1.5)
color
Operating temperature/-10-＋55℃, 30-85%RH
humidity range
Storage temperature-40-＋70℃
range
WeightApprox. 1.2kg●Non-insulation (minus common) between instantaneous output and peak output terminals.
●Make sure to reset the device before use each time the power is turned on.

●As a special response, 0.1s/99% (only available during start-up) is manufacturable.

■ Purchase specifications①⑤Type② Input③ Output
Auxiliary supply⑥ Quantity

Products List

④Load resistance§ BOX TRANSDUCER §AC SPECIAL TRANSDUCER

TT2-AC SERIESWTT2-83AC-33(120×110×130mm/1.2kg)

AETT2-82AC(120×56×130mm/700g)■ Use■ Features●When electric furnace is controlled by SCR(cyclic control), current/voltage and powerfluctuate periodically and those can not beread by general indicating instrument ortransducer.
●This product can measure voltage/currentand power in cycle control accurately andread them in stable condition. As those can beread by data logger, etc., this product can beused for cycle control measurement.

●High reliability design.
●Withstand voltage between input/ output/ auxiliary supply/
earth. 2000V AC 50/60Hz 1 min.. Complete insulation.
●With electrostatic shield between primary and secondary,equipment on output side can be protected from lightning
surge, etc. on input side.
●With output line surge protection (2,000A, ±8/20μs), cantransmit an output directly to a distant place.
●Output operation is stable against cycle control input.

■ Cycle control waveform■ Operating connection diagram■ Output comparison table against input continuity
Input
Current/voltage
continuity
0.05 (5%)
0.25 (25%)
0.5 (50%)
0.75 (75%)
1 (100%)Approximate
formulaProducts List

Output (%)
Current/voltage

Power

22.4
50.0
70.7
86.6
100.0
A (V) =
√input × 100%

5.0
25.0
50.0
75.0
100.0
P=VI=
√input×√input × 100%

§ BOX TRANSDUCER §AC SPECIAL TRANSDUCER

TT-AC SERIES■ Specifications
Requirement of use

700g
700g

Weight1.0kg
1.2kg

Products List

1.5Type② Input③ OutputAuxiliary supply⑤ Quantity

2①④2■ Purchase specifications

Auxiliarysupply■ Dimensions(mm) See above connection diagram for terminal arrangement.

1/ phase■ Connection diagram-*1. In the case of less than 50% of rated output value, tolerance doubles. *2. In the case of less than 25% of rated output value, tolerance doubles.
*3. Time it takes to fall within 90% and 10% of final steady state value.

0.5

Rise:
10sec

2kW

Rise:
10 sec220V, 5ARise:
10 sec

1kW

Rise:
5 sec

110V, 5A

Rise:
10sec

1kW

Currentside≦1%500W

220V, 5A

0.5/ phase

5V (≧1kΩ)
10V (≧2kΩ)
1-3-5V(≧1kΩ)
1mA (≦10kΩ)
4-12-20mA(≦500Ω)

100V, 5A

1.0≦1%

VETT2-82AC-5V (≧1kΩ)
10V (≧2kΩ)
4-20mA(≦500Ω)

Voltage side

≦1%

150V or 300V

AETT2-82AC

Rise:
5 sec

5V (≧1kΩ)
10V (≧2kΩ)
4-20mA(≦500Ω)Response(second)*3Ripple (p-p)

50/60Hz5A*2 ±1.0%50/60HzDC output(loadresistance)*1 ±1.0%50/60HzWTT2-83AC-33

unbalance

unbalance--Interval
1 sec.

50/60HzInterval
1 sec.

-Interval
1 sec.

3-phaseHall multiplying methodSinglephase

AC power-Interval
1 sec.

RMS value-RMS value

AC voltage-AC current

WTT2-83AC-12Input*1 ±1.0%

TypeTolerance

Frequency

Current
sideVoltage
side

Cycle wave
form

Operation
methodProductApproximate
VA consumption

§ BOX TRANSDUCER §AC SPECIAL TRANSDUCER

INTEGRATING POWER/ REACTIVE POWER TRANSDUCER

INTEGRATING POWER TRANSDUCER
WHP-83A-□
INTEGRATING REACTIVE POWER TRANSDUCER
WVHP-83A-□■ Use
This product converts power/reactive power of single phase/ 3-phaseand 3-phase 4-wire to proportional pulse output/ analog output.

■ Features
1. Power/reactive power can be measured accurately in distortedwave.
2. Integrating power can be measured in short period of time such as
20-30 seconds.
3. Variety of pulse output signal method can be selected.
4. Product with analog output (option) can be manufactured.
Analog output: with line surge (2,000A 8/20µs) protection andsignal is outputted in remote place.
5. As output limiter circuit is equipped, output can be limited toapprox. 1.5 times of rated value even at an excessive input.

WHP-83A-33■ Standard specifications
ItemSpecifications

Tolerance% against output span

Influence of

23±20℃ tolerance %temperature
Influence of frequency

45-65Hz tolerance %Characteristic

In conformity with JIS C1111-1989

Response time

Time to be within ±1% of constant output value when a stepped input of 90% output is applied.

Output ripple

P-P against rated output value 1% or less (analog output)

External adjustment tooutput±5% adjustment is possible.

Output limiter circuit

Limiting analog output (option) to approx. 1.5 times of rated value against an excessive input.

Auxiliary supply

AC100/110 or AC200/220V ±15% (50/60Hz); DC24V ±15% ; DC110V (88-143V)

Overvoltage
Over currentinput

2 times of rated voltage (10 sec.), 1.2 times (continuity)

Auxiliary supply

1.5 times of rated voltage (10 sec.), 1.2 times (continuity)

Rated current: 40 times (1 sec.), 20 times (4 sec.), 10 times (16 sec.), 1.2 times (continuity)
Between input/output/auxiliary supply and outer case (earth).

Insulation resistance

Between pulse output terminal and analog output terminal (option) (Non-insulation between
voltage output and analog output).
DC500V 50MΩ or more.
Between input/output/auxiliary supply and outer case (earth).

Withstand voltage

Between pulse output terminal and analog output terminal (option) (Non-insulation between
voltage output and analog output).
AC2, 000V

Impulsewithstandvoltage
Appearance color
Operating temperature/humidity range

Between input/output/reset and auxiliary supply terminal.
5kV 1.2/50µS; positive and negative polarity 3 times each.
Black (munsell N1.5)-10-＋55℃, 30-85%RH (no condensation)

Storage temperature
range

Products List

(50/60Hz) 1min.

Between electric circuit and outer case (earth).

-40-＋70℃

Weight (kg)

1.3

1.3

1.4
3.5 (2.0) *2
1/ phase

1.1

10.5/ phase

Auxiliary
supplyCurrentside
0.5

1.3

5V (1kΩ or more), 10V (2kΩ or more), 1-5V (1kΩ or more), 1mA (10kΩ or less), 5mA (2kΩ or less), 4-20mA (525Ω or less).

±1%±0.5%100mS＋1/fo *1

1

Voltage side
AnalogoutputPulse output
AnalogoutputAnalogoutput

1kW
1kW

2kW

1kW

2kW

100V, 5A

LAG 1kvar

220V, 5A

LAG 2kvar

110V, 5A

LAG 1kvar

Voltage 10Vp±10% (2kΩ or more) or Transistor open collector (DC48V/DC100mA MAX.) or Photo MOS FET relay (DC48V DC100mA MAX )1kW

220/√3V, 5A

1.4

LAG 2kvar

220V, 5A

Example: DC0.1-10V: From min. 0-0.1V to max. 0-10V can be manufactured.

Pulse output

500W

110/√3V, 5A

WVHP-83A-34

220V, 5A

WVHP-83A-33

50/60

110V, 5A

WHP-83A-34

50/60

110V, 5A

WHP-83A-33

50/60

220V, 5A

WHP-83A-13

50/60

110V, 5A

WHP-83A-12

50/60

3-phase 4-wire* Values in this table are Max. Values (except frequency).

Pulse output

Secondpower

Rating50/60

TypeFrequency(50/60Hz)

unbalance

Balanced (line)
Positive phase sequence

unbalance

Balanced
Positive phase sequence

unbalance

Balanced (phase voltage)
Positive phase sequence-unbalance

unbalance-------Single phase

Hall multiplying method-3-phase 4-wire

3-phase4-wireCurrentside-3-phase

Hall multiplying method

Single phase3-wire3-phase4-wireVoltageside
Cycle wave
form

Operation method
Single phase

INTEGRATING REACTIVE POWER

3-phaseIntegrating
reactivepower3-phaseIntegrating
powerSingle phase3-wireApproximate
consumption VA (W)INTEGRATING POWER

AC50-240V

DC0.1-10V
DC0.1-20mA
Minus output is not
manufacturable.

AC50-240V

0.01667-277.8pps(60-1,000, 000plse/h)Single phase

Response(second)*3
Product

Products List

AC50-240V

45-65Hz

Analog output(option)

AC0.1-5V

Pulse output

frequency

ToleranceOutput
Input
Requirement of use

current

Ratingvoltage

Second power
225-600W (110V, 5A)
450-1,200W (220V, 5A)
0.25-1.2kW(110V, 5A)
0.25-1.2kW (110V, 5A)
0.5-2.4kW (220V, 5A)
0.25-1.2kW(110/√3V, 5A)
0.5-2.4kW (220/√3V, 5A)
LAG0.25-1.2kvar(110V, 5A)
LAG0.5-2.4kvar(220V, 5A)

Item

INTEGRATING POWER/ REACTIVE POWER TRANSDUCER

AC SPECIAL TRANSDUCER§ BOX TRANSDUCER §■ Specifications*1. fo: output frequency*2. AC 4.5VA, DC 2.5W in the case of a product with analog output (option) .

■ Product range§ BOX TRANSDUCER §AC SPECIAL TRANSDUCER

INTEGRATING POWER/ REACTIVE POWER TRANSDUCER■ Pulse output ((Specify any one of the following)●Voltage pulse output

H……10V±10%
L……≦0.4V●Tr. open contactor output●Photo MOS/FET relayoutput●Load operates when contact is ON.
●Load operates when internal transistor is ON.
●Connect an external assistant relay if it●Do not apply reverse polarity voltage.
exceeds switching capacity.

* When inductive load such as electromagnetic relay is connected to output contact, installation of diode around load is recommended.

■ Pulse output width (standard: 100ms)■Dimensions(mm)See connection diagram forterminal arrangement.

F. output
5pulse/sor less

F.S.
outputpulse/s ormore■Connection diagram■ Purchase specifications① Type② Max. input power③ Rating (voltage/current/VTratio/CT ratio/frequency)④ Pulse constant⑤ Pulse output signal method⑥ Option (with analog output,terminal cover)⑦ auxiliary supply⑧ no. of unit

(1) In the case of DC power source: S1 (＋), S2 (−) .
(2) OUTPUTⅠis analog output (option), OUTPUTⅡ is pulse output. Output notation of standard product without analog output(option) is indicated as OUTPUT

Products List