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7.2.2 Configuration:
Oxygen measurement
Oxygen measurement with heated lambda probe
Controller r Process value processing r 7: O
temperature
Oxygen measurement with non-heated lambda probe
Controller r Process value processing r O
temperature
Input 1 r Function INP1 r 7: process value X1
In input 1, the sensor type is set for one of the high-impedance voltage inputs:
Input 1 r Sensor type r 42: special (-25...1150 mV) or
Input 1 r meas. value correction r 0: no correction
Temperature measurement (required with non-heated lambda probe)
Any temperature measurement with one of analog inputs INP2 or INP3 can be
used. Select input X2 during function selection (second set-point).
g
With O
2
parameters related to the process value.
This is done centrally during configuration.
Other r Parameter unit for O
g
Whether the temperature of the non-heated λ probe is specified in °C or °F can
be selected during configuration.
Other r Unit r 1: in Celsius
8800 process controller
Cntr r C. t YP
Cntr r C. t YP
InP. 1 r 1. F nc
41: special (-2,5...115 mV)
InP. 1 r S. t yP
InP. 1 r S. t yP
InP. 1 r S. L in
measurement, evaluation in ppm or % must be specified for all
othrr O2
othrr O2
2: in Fahrenheit
othrr Unit
othrr Unit
71
functions with constant probe
2
7
O2-const
functions with measured probe
2
8
O2+temp
7
X1-Input
41
115 mV
42
1150 mV
0
no
r 0: parameter for O
2
1: parameter for O
0
unit : ppm
1
unit : %
1
°C
2
°F
Special functions
function in ppm
2
function in %
2
O
measurement
2
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