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3-10
Flex™ IO Isolated RTD/Thermocouple Module
User's Manual Pub. 0300242‐01 Rev. A
Bit 4
Bit 3
Bit 2
Bit 1
0
0
1
0
0
0
1
0
0
0
1
1
0
0
1
1
0
1
0
0
0
1
0
0
0
1
0
1
0
1
0
1
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
1
1
0
0
0
1
0
0
0
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
1
1
1
0
0
1
1
0
0
3.4.3 Input Filter [Words 1 – 8 (Bits 5 to 7)
Use the table below to select the appropriate filter for each channel.
Table 3-4 (Filter Settings)
Bit 7
Bit 6
Bit 5
ADC Filter:
0
0
0
4.17 Hz
0
0
1
10.0 Hz
0
1
0
16.7 Hz
0
1
1
19.6 Hz
1
0
0
62.0 Hz
1
0
1
470.0 Hz
1
1
0
*Unused
1
1
1
*Unused
3.4.4 Data Format [Words 1 – 8 (Bits 8 to 10)
Select the appropriate data type for each channel using the table below. Refer to Table
3-6 for data type ranges.
Bit 0
Range:
0
K Type Thermocouple
1
N Type Thermocouple
0
R Type Thermocouple
1
S Type Thermocouple
0
T Type Thermocouple
1
100 Ω Pt α 0.385
0
200 Ω Pt α 0.385
1
500 Ω Pt α 0.385
0
1000 Ω Pt α 0.385
1
100 Ω Pt α 0.3916
0
200 Ω Pt α 0.3916
1
500 Ω Pt α 0.3916
0
1000 Ω Pt α 0.3916
1
10 Ω Cu α 0.426
0
100 Ω Ni α 0.618
1
120 Ω Ni α 0.672
0
604 Ω NiFe α 0.518
1
R 0 to 150 Ω
0
R 0 to 1000 Ω
1
R 0 to 3000 Ω
0
+/- 50 mV
1
+/- 100 mV
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