§ PLUG-IN TRANSDUCER § 2-OUTPUT TYPESENSOR TRANSDUCER

THERMOELECTRIC TEMPERATURE TRANSDUCER
WHTP2 –■ Use
By inputting thermal electromotive forces of various
kinds of thermocouples based on the JIS, this device
insulates and converts thermal electromotive forces
into outputs proportional to temperature.

WHTP2-J1H51(80×50×133mm/500g)■ Connection diagram■ Features
1. Constant voltage/current output.
2. Withstand voltage between input, output, auxiliary
supply and outer case is AC2, 000V (50/60Hz), complete
insulation for 1 min..
3. Withstand voltage between 1st output and 2nd output
is AC1, 000V.
4. Impulse withstands voltage 5kV, 1.2/50µs (betweenelectric circuit and outer case) positive/ negative
polarity 3 times each is guaranteed.

■ Specification
Kind ofthermocouple

Standardinput range

B

7-9

R

7-9

S

7-9

K
E

2-8
1-5

J

1-5T

1-2Input

1st Output(load resistance)

2nd Output(load resistance)

1 : 0-200℃

1 : DC0-100mV(≧200Ω)

1 : DC0-100mV (≧200Ω)

1 : AC100V±10%, 50/60Hz

Tolerance: ±0.5%

2 : 0-300℃

2 : DC0-1V(≧200Ω)

2 : DC0-1V(≧200Ω)

2 : AC110V±10%, 50/60Hz

Response time:

3 : 0-400℃

3 : DC0-5V(≧1kΩ)

3 : DC0-5V(≧1kΩ)

3 : AC200V±10%, 50/60Hz≦0.5sec./90%

4 : 0-500℃

4 : DC 0-10V(≧2kΩ)

4 : DC 0-10V(≧2kΩ)

4 : AC220V±10%, 50/60Hz

Consumption VA:

5 : 0-600℃

5 : DC1-5V(≧1kΩ)

5 : DC1-5V(≧1kΩ)

5 : DC24V±10%

AC power source:3VA

6 : 0-800℃

A : DC0-1mA (≧12kΩ)

A : DC0-1mA(≧7kΩ)

0 : other than those above

DC power source:3.5W

7 : 0-1,000℃

B : DC0-5mA (≧2.4kΩ)

B : DC0-5mA(≧1.4kΩ)

8 : 0-1,200℃

C : DC0-10mA (≧1.2kΩ)

C : DC0-10mA (≧700Ω)

AC power source:500g

9 : 0-1,400℃

D : DC0-16mA (≧750Ω)

D : DC0-16mA (≧430Ω)

DC power source:400g

0 : other thanE : DC1-5mA (≧2.4kΩ)

E : DC1-5mA(≧1.4kΩ)those above

F : DC4-20mA (≧600Ω)

F : DC4-20mA(≧350Ω)

0 : other than those above

0 : other than those above

H : DC4-20mA(≦800Ω)

5 : DC1-5V(≧1kΩ)

Auxiliary supply

Common specification

Weight:1 : AC100V+10%, -15%, 50/60Hz

DC1-5V(≧200kΩ)

2 : AC110V+10%, -15%, 50/60Hz

With output switching

3 : AC200V+10%, -15%, 50/60Hz

function

4 : AC220V+10%, -15%, 50/60Hz
5 : DC24V+10%, -15%,● Open of current output: even if the current output terminal is used in a state of regular open, there is no problem. Also, a voltage of approx. 25V occurs on the output terminal.
● please consult with us for N thermocouple.

● Built-in linearizer
Thermal electromotive force of a thermocouple is not proportional to temperature.
It is the linearizer that converts thermal electromotive force into an output
proportional to temperature.
● Built-in burnout
The device detects disconnection of thermocouple and does scale-out of output topositive (+) side. Scale-out to negative (-) side is also manufacturable if specified.

Products List1

§ PLUG-IN TRANSDUCER § 2-OUTPUT TYPESENSOR TRANSDUCER● Built-in cold junction compensation
In principle, a thermocouple and compensating wire generate a thermal electromotive force
equivalent to (T1℃) -V (T2℃) as Vin. A sensor for compensation RJC compensates for thermal
electromotive force equivalent to V (T2℃) In addition, the sensor for compensation is connected toterminal part (5, 6), and compensates for the terminal temperature as the temperature of input
terminal (4, 6).
● Compensating lead wire
A compensating lead wire compensates temperature difference between thermocouple terminals andtransducer terminals. Because color (material) of compensating wire varies according to thermocouple
type, choose a compensating lead wire in accordance with thermocouple. Match positive and negative
polarities when connecting.
● External resistance range
An External resistance range is the resistance value of a reciprocating circuit which consists ofthermocouple connected to the transducer, compensating wire, connecting wires and so on. Use theproduct within an external resistance range less than or equal to 500Ω reciprocally.
● Input wiring
Because signal of input wiring is very weak, try to make the wirings away from noise sources such as
an electrical power line, a precipitous voltage or a line with current fluctuation.

■ Block diagram①Burnout detecting circuit②High input resistance amplifying circuit③Ambient temperature correction circuit④Linearizer circuit⑤Pulse width modulation circuit⑥Pulse width demodulation circuit⑦Output circuit⑧Insulated power source circuit■ Purchase specifications

Type●Item to specify

WHTP2–J1H

51

Auxiliary
supply2nd Output

1st Output
Input
Kind of thermo-couple

Products List2