Thermocouple/RTD
Input Unit
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Features
1. Compatible with K and J type thermocouples
K and J type temperature sensors can be used with
this unit.
2. Compatible with pt100 and jpt100 RTDs can
be used.
Three-wire type sensors pt100 and jpt100 platinum
temperature sensors.
3. Conversion to centigrade data
Temperature data measured by the sensor is
converted inside each input unit to normalized data of 0 to 4000
as well as to centigrade data.
4. Offset setting of centigrade data
If converted data is different from that obtained
from other measuring instruments due to an error in measurement,
it is possible to set an offset value to correct the converted
data.
5. Averaging function
Normalized and centigrade data which were
converted can be averaged so as to smoothly take in an unstable
input signal.
6. Breakage/over-range detecting function
If the input line is broken or the measured
temperature exceeds the effective temperature range, it can detect
the abnormal status.
Product Types
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Product name
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Specifications
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Part number
|
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FP3 Thermocouple Input Unit (4-channel)
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Compatible sensor type: K-type 0 to 1000°C
32 to 1832 °
F
J-type 0 to +600°C 32
to 1112 ° F
Digital converted data: 0 to +4000
(resolution 1/4000)
Input temperature ranges:
(1) 0 to 200°C 32
to 392 ° F,
(2) 0 to 400°C 32
to 752 ° F,
(3) 0 to 600°C 32
to 1,112 ° F,
(4) 0 to 1000°C 32
to 1,832 ° F
|
AFP3420 |
|
FP3 RTD Input Unit (4-channel)
|
Compatible sensor type: Pt100 and Jpt100:
-100 to +200°C -148 to 392 °
F
Digital converted data: 0 to +4000
(resolution 1/4000)
Input temperature ranges:
(1) -100 to 200°C -148
to 392 ° F,
(2) -100 to +50°C -148
to 122 ° F,
(3) -50 to -100°C -58
to -148 ° F,
(4) -20 to +80°C -4
to 176 ° F,
(5) 50 to +200°C 122
to 392 ° F
|
AFP3421 |
Configuration
-
Specifications
Performance Specifications
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Item
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Description
|
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Thermocouple input unit (AFP3420)
|
RTD input unit (AFP3421)
|
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Analog input channels
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4-channel/unit
|
|
Compatible sensor type
|
K type Thermocouple: 0 to +1000°C
32 to +1832 °
F
J type Thermocouple: 0 to +600°C
32 to +1112 °
F
|
RTD pt100: -100 to +200°C
-148 to +392 °
F
RTD Jpt100: -100 to +200°C
-148 to +392 °
F
|
|
Input temperature ranges
|
K type
(1) 0 to 200°C 32
to 392 ° F
(2) 0 to 400°C 32
to 752 ° F
(3) 0 to 600°C 32
to 1112 ° F
(4) 0 to 1000°C 32
to 1832 ° F
J type (1)(2) to (3) only
|
(1) -100 to +200°C -148
to +392 ° F
(2) -100 to +50°C -148
to +122 ° F
(3) -50 to +100°C -58
to +212 ° F
(4) -20 to +80°C -4
to +152 ° F
(5) +50 to +200°C +122
to +392 ° F
|
|
Digital converted data
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Normalized data: K0 to K4000
Centigrade data: Temperature (°C) to one
decimal place
|
|
Resolution
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1/4000
|
|
Overall accuracy
|
1% of full scale (at 0 to 55°C 32
to 131 ° F)
0.5% of full scale (at 25°C 77
° F)
|
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Response time
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500 ms or less/1 ch
2 s or less/4 ch
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60 ms or less/1 ch
240 ms or less/4 ch
|
|
Insulation method
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(1) Optical coupler insulation
between input/output terminal
and digital internal circuit
(2) Optical MOS relay insulation
between channels
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(1) Optical coupler insulation
between input/output terminal
and digital internal circuit
(2) Not insulated between channels
|
|
Wiring length
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-
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Max. 50 ohm
|
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Other functions
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Averaging the normalized and centigrade
data; adjusting centigrade
data offset; detecting improper connection
and over-range, indicating failed unit;
built-in protection circuit
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Connection method
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Terminal block (M3.5 screw)
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Weight
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Approx. 400 g 14.110
oz
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