Manual

42
15.13 Thermocouple Pt100 input/1-ch analog-output module
The detail of the external power supply is: the rated supply voltage is 24 VDC, the rated
input voltage ranges from DC20.4 to 28.8 V. The consumption current is 40 mA
*1
or
50 mA
*2
(24 VDC) when the input is not-open, output 100%.
EXM-ALM3LT
Characteristics of Thermocouple
& Temperature Inputs
Thermocouple Temperature Probes
Input Range Type K:
0 to 1300 ° C/32 to 2372 ° F
Type J:
0 to 1200 ° C/32 to 2192 ° F
Type T:
0 to 400°C/32 to 742°F
(RTD)
Pt 100, 3-wire type
(-100 to 500°C)
(-148 to 932°F)
Input Impedance 1 MΩ min.
A-D
Conversion
Sample
Repetition Time
20 ms max.
20 ms max.*
1
40 ms max.*
2
Total Input System
Transfer Time
*
3
200 ms + 1 scan time*
1
60 ms + 1 scan time*
2
200 ms + 1 scan time*
1
80 ms + 1 scan time*
2
Input Type Differential input
Operating Mode Self-scan
Conversion Mode Σ∆ type ADC
Input Error Maximum Error
at 25°C (77°F)
±0.2% of full scale plus
reference Junction
compensation accuracy
±4°C max
±0.2% of full scale
Temperature
Coefficient
±0.006% of full scale/°C
Repeatable after
Stabilization Time
±0.5% of full scale
Nonlinear ±0.2% of full scale
Maximum Error ±1% of full scale
Data Digital
Resolution
All types:
4,096 increments (12 bits)*
1
Type K:
13,000 increments (14 bits)*
2
Type J:
12,000 increments (14 bits)*
2
Type T:
4,000 increments (12 bits)*
2
4,096 increments (12 bits)*
1
6,000 increments (13 bits)*
2
Input Value of
LSB*
4
Type K:
0.325°C/0.585°F*
1
Type J:
0.300°C/0.540°F*
1
Type T:
0.100°C/0.180°F*
1
All types:
0.100°C*
2
/0.180°F*
2
0.15°C/0.27°F*
1
0.100°C/0.180°F*
2