ABB STT04 - Page 186

TBN581 (ORP/pION) TRANSMITTER
CALIBRATION
L - 7
Select BENCH CAL.
SAME SENSOR:CALCULATED SENSOR OFFSET,
CALCULATED EFFICIENCY, and CUMULATIVE
OFFSET CHANGE are recalculated.
NEW SENSOR: CALCULATED SENSOR OFFSET,
CALCULATED EFFICIENCY are calculated and
CUMULATIVE OFFSET CHANGE is set to 0.00 mV.
NOTE: mV SOURCE selection is covered in Bench
Calibration (mV).
Low default value: -1000 mV.
High default value: +1000 mV.
Enter low mV value and press . Enter high
mV value.
Displays low mV calibration value, and the uncali-
brated mV values determined from the input source.
Displays high mV calibration value, and the uncali-
brated mV values determined from the input source.
Value from last calibration. If new sensor, efficiency
will be 98%.
This value is recalculated during each calibration.
Key Display Comments
ENTER
CALIBRATION
PROCESS CAL
→ BENCH CAL
D-TO-A ADJUST
ENTER
INPUT SOURCE:
→ SAME SENSOR
NEW SENSOR
mV SOURCE
ENTER
ENTER LO mV CAL
nn.nn mV
ENTER HI mV CAL
nn.nn mV
ENTER
ENTER
APPLY nn.nn mV
nn.nn
HIT ENTER
WHEN STABLE
ENTER
APPLY nn.nn mV
nn.nn
HIT ENTER
WHEN STABLE
ENTER
CALCULATED
EFFICIENCY
nnn.n %
HIT ENTER
ENTER
CALCULATED
SENSOR OFFSET
nnn pH
HIT ENTER