Register number Address Register
description
Data format Unit and notes
Custom averages
171 00AA
hex
Methane 32-bit float ppm
v
00AB
hex
173 00AC
hex
Acetylene 32-bit float ppm
v
00AD
hex
175 00AE
hex
Ethylene 32-bit float ppm
v
00AF
hex
177 00B0
hex
Ethane 32-bit float ppm
v
00B1
hex
179 00B2
hex
Carbon monoxide 32-bit float ppm
v
00B3
hex
181 00B4
hex
Carbon dioxide 32-bit float ppm
v
00B5
hex
183 00B6
hex
Total dissolved
combustible
gases (TDCG)
32-bit float ppm
v
00B7
hex
185 00B8
hex
Hydrogen 32-bit float ppm
v
00B9
hex
187 00BA
hex
Moisture in oil 32-bit float ppm
w
00BB
hex
Present values as 16-bit signed integer
221 00DC
hex
Methane 16-bit signed
integer
ppm
v
222 00DD
hex
Acetylene 16-bit signed
integer
ppm
v
223 00DE
hex
Ethylene 16-bit signed
integer
ppm
v
224 00DF
hex
Ethane 16-bit signed
integer
ppm
v
225 00E0
hex
Carbon monoxide 16-bit signed
integer
ppm
v
OPT100 User Guide M211858EN-U
110