§Small-sized plug-in transducer§
2-output type

Thermoelectric temperature transducer
FWHT■ Application
By inputting thermal electromotive forces of various kindsof thermocouples based on the JIS, the device insulates input
and output, and then converts thermal electromotive forces
into an output proportional to temperature. Because thistransducer can extract two insulated outputs, control andmonitor can be done by a single unit. Up to 16 units can behoused in an installation base.

■ Feature
1.
2.
3.
4.
5.
6.
7.

Compact and high withstand voltage.
Withstand voltage between input/output/auxiliary
supply/outer case is AC2, 000V (50/60Hz) for 1 min..
Withstand voltage between outputs is AC500V (50/60Hz)
for 1 min..
Constant voltage/current output type. No need to adjust
the product if it operates within load resistance range.
A LED can confirm status of electric power applied.
Zero/span of 1st and 2nd output can be adjusted
individually. (±2% adjustable)
Plus (+) or minus (-) burnout can be specified.

■ Block Diagram

Burnout detecting circuit
Insulated power source circuit
Input amplifying circuit
Ambient temperature correction circuit
Linearized circuit
Oscillating circuit
Pulse width modulation circuit
Photo coupler insulation
Pulse width demodulation circuit⑩ Reference voltage⑪ Output circuit①②③④⑤⑥⑦⑧⑨29.5×76×125mm/180g■ Connection diagram (socket)●Compensating wire

A compensating wire compensates for thetemperature difference between thermocouple
terminals and transducer terminals.
Different thermocouple needs different
compensating wire.

●Built-in cold junction compensation

Thermal electromotive force as an input varies along with temperature change of input
terminal. Terminal temperature is measured by a RJC (compensating sensor) and thechanged portion of thermal electromotive force caused by this temperature change iscompensated.

1Products List§Small-sized plug-in transducer§
2-output type

Thermoelectric temperature transducer■ Specification●How to specify

Kind ofthermocouple
B : *1
Range 600-1700℃
Span ≧1000℃
R:
Range 0-1600℃
Span ≧1000℃
S:
Range 0-1600℃
Span ≧1000℃
K:
Range 0-1200℃
Span ≧250℃
E:
Range 0-800℃
Span ≧150℃
J:
Range 0-750℃
Span ≧200℃
T:
Range 0-350℃
Span ≧200℃
N:
Range 0-1250℃
Span ≧300℃

Type nameFWHTInput
01 :0-150℃
02 :0-200℃
03 :0-250℃
04 :0-300℃
05 :0-350℃
06 :0-400℃
07 :0-450℃
08 :0-500℃
11 :0-600℃
12 :0-700℃
13 :0-800℃
14 :0-900℃
15 :0-1000℃
21 :0-1100℃
22 :0-1200℃
23 :0-1300℃
24 :0-1400℃
25 :0-1500℃
31 :600-1600℃*1
32 :600-1700℃*1
ZZ :otherthan thoseabove *2
(See productrange)

1st Output(loadresistant)
1:DC0-100mV(≧200Ω)
2:DC0-1V(≧200Ω)
3:DC0-5V(≧600Ω)
4:DC0-10V(≧2kΩ)
5:DC1-5V(≧600Ω)
A:DC0-1mA(≦10kΩ)
B:DC0-5mA(≦2kΩ)
C:DC0-10mA(≦1kΩ)
D:DC0-16mA(≦600Ω)
E:DC1-5mA(≦3kΩ)F:DC4-20mA(≦750Ω)Z :other thanthose above *2(See productrange)

Specification code

-2nd Output(loadresistant)
1:DC0-100mV(≧200Ω)
2:DC0-1V(≧200Ω)
3:DC0-5V(≧1kΩ)

Auxiliary
supplyCommonspecification
Conversion accuracy:
K,E,J,T,N: ±0.4%
B,R,S:±0.5%
Temperature
characteristics:
0.25%/10℃Response time:≦0.5s/90%
Accuracy of cold
junctioncompensation:
At 20±10℃
K, E, J, T, N
thermocouple:≦0.5℃
S.R thermocouple:≦1.0℃
Burnout time:≦10s
Input external
resistance: ≦500Ω
Consumption VA:
At AC110V: 4.0VA
At AC220V: 5.0VA
At DC110V: 2.5W
At DC24V: 2.5W
CE marking item:
At DC24V: 3.3WF:1:

1 : plus

without

2 :minus

Rated Voltage
AC100/110V
50/60Hz50/60Hz
DC100/110V

A:DC0-1mA(≦7kΩ)
B:DC0-5mA(≦1.4kΩ)
C:DC0-10mA(≦700Ω)D:DC0-16mA(≦4300Ω)
E:DC1-5mA(≦1.4kΩ)F:DC4-20mA(≦350Ω)

Burnout

AC/DC80-264V

AC200/220V

5:DC1-5V(≧1kΩ)

Power
fuse

5 :DC24V(DC19-30V)
A :DC24V(DC19-30V)
CE marking*3

Z :other thanthose above *2(See productrange)fuse
2 :withfuse

Weight:Without socket:
approx.130g
With socket:
approx.180g*1 Only input code 31 or 32 is available for B thermocouple. *2 Consult with us for specification other than those indicated in the table above.

Product Range (including special handling)
Input (production measurement range)
T: -270-400℃*4
B: 0-1820℃
N: -270-1300℃
R: -50-1760℃
S: -50-1760℃
ZZ: because it varies
K: -270-1370℃
by thermocouple
E: -270-1000℃specification, consult
J: -210-1200℃
with us.

1st Output
Current output:
1mA-20mA
Voltage output:
10mV-10V*6*3 CE marking compliant specifications●EMC compliant specifications

EMI (emission) EN61000-6-4
EMS (immunity) EN61000-6-2●Safety standard

EN61010-1
CAT Ⅲ, pollution degree: 2

2nd Output
Current output:
1mA-20mA
Voltage output:
10mV-10V *5*6*4 T: 0-100℃, 0-150℃ arespecially manufacturable.
*5 2nd output: output more than
5.1V but less than 10V is
subject to special handling.
(Load current 2mA)
*6 Plus/minus output is not
manufacturable.

●External conducting wire resistance range

External conducting wire is the resistance value ofa reciprocating circuit. The reciprocating circuit
consists of thermocouple, compensating wire andconnecting wire connected to a transducer. Use
the product within an external conducting wire
resistance range less than or equal to 500Ω.

2Products List