Publication 1794-6.5.12 - September 2011
44 Calibrate Your Module
EDT Calibration Command and Command Data Summary
Config Word 3
EDT Command
bits 8…15
Meaning Config Word 3
bits 4…7
Config Word 3
bits 0…3
Meaning
Dec. (Hex) Channel No. Command data
4 (4) General calibration
by channel
0…7 1 Channel internal current source
and current sense resistor, with
4-wire external 383 Ω inputs
0…7 2 Channel internal current source
and current sense resistor with
4-wire external 100 Ω inputs
0…7 3 Loop channel compensation for
2-wire RTD
0…7 4 CJC calibration
5 (5) Offset calibration
by channel
0…7 0 gain= 1, input = -320 mV
0…7 1 gain = 2, input = 0.0 mV
0…7 2 gain = 4, input = -50 mV
0…7 3 gain = 8, input = -10.0 mV
0…7 4 gain = 16, input = -9 mV
0…7 5 gain = 32, input = 1.0 mV
6 (6) Gain calibration by
channel
0 gain = 1, input = 320 mV
1 gain = 2, input = 320 mV
2 gain = 4, input = 110 mV
3 gain = 8, input = 70 mV
4 gain = 16, input = 29 mV
5 gain = 32, input = 19 mV
36 (24) Calibration all
channels
General calibration
all channels
0 1 Channel internal current source
and current sense resistor, with
4-wire external 383 Ω inputs
0 2 Channel internal current source
and current sense resistor with
4-wire external 100 Ω inputs
0 3 Loop channel compensation for
2-wire RTD
0 4 CJC calibration
Offset calibration
all channels
1 0 gain = 1, input = -320 mV
