Hach-Lange SI792(x) E HACH GLI 3700 series SI792(x) T 7MA2200 and 8398 series User Manual - Manual (Page 52)

Operation—Foundation Fieldbus
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6.2.2 Standard analog input block (AI)
Three Analog Input Function Blocks provide for cyclic transmission of
measured values (currently measured value with status, alarm limits,
freely selectable process parameter).
6.2.2.1 Operating modes
Use the MODE_BLK parameter to set the following operating modes:
• OOS—out of service. If not write-protected, access to all
parameters is allowed.
• MAN—manual
• Auto—online, normal state
6.2.2.2 Set the parameter and units
Use CHANNEL to set the measured parameter and units ( Table 8 ). The
corresponding measurement unit is selected in the UNITS
subparameter of XD_SCALE (
Table 9 on page 52 ).
Table 8 Measurement parameters and units
Channel Parameter Unit Unit value
1 Conductivity
µS/cm 1586
mS/cm 1302
S/cm 1299
2 Concentration % (percent) 1342
3 Temperature
°C 1001
°F 1002
4 Salinity ‰ (parts per thousand) 2003
5 Resistance M Ω/cm 1587
6 Cell constant cm
-1 2004