ABB STT04 - Page 176

TBN580 TRANSMITTER
CALIBRATION
K - 9
The value displayed is the temperature of the pro-
cess (interior of sensor). Default is 25°C.
NOTE: If a new temperature value is entered, it is
used only for pH calibration. This change does not
affect the calibration on the temperature sensor.
Default values 4.01 and 7.00 pH. Enter low pH value
and press . Enter the high pH value. If mV
SOURCE, default is 0.00 and 14.00 pH at 25°C.
Displays low pH calibration value, and the uncali-
brated pH value as determined from the input
source.
Displays high pH calibration value, and the uncali-
brated pH value as determined from the input
source.
Value from the last calibration. If NEW SENSOR effi-
ciency will be 98%.
This value is recalculated during each calibration.
This value shows the offset change over time for a
particular sensor. Value resets to 0.00 pH if installing
a new sensor.
Key Display Comments
ENTER
CHANGE pH CAL
TEMPERATURE?
nnn°UNITS
ENTER
ENTER LO pH CAL
nn.nn pH
ENTER HI pH CAL
nn.nn pH
ENTER
ENTER
APPLY nn.nn pH
nn.nn pH
HIT ENTER
WHEN STABLE
ENTER
APPLY nn.nn pH
nn.nn pH
HIT ENTER
WHEN STABLE
ENTER
CALCULATED
EFFICIENCY
nnn.n %
HIT ENTER
ENTER
CALCULATED
SENSOR OFFSET
nnn pH
HIT ENTER
ENTER
CUMULATIVE
OFFSET CHANGE
nnn pH
HIT ENTER
ENTER
ID TAGNAME
READY