MODEL 5081-A
SECTION 13.0
CALIBRATION - pH
13.8 pH SLOPE ADJUSTMENT USING THE INFRARED REMOTE CONTROLLER
1. If the slope of the glass electrode is known form other measurements, it can be entered directly into the trans-
mitter. the slope must be entered as the slope at 25°C. to calculate the slope at 25°C from the slope at tem-
perature t°C, use the equation:
slope at 25°C = (slope at t°C)
Changing the slope overrides the slope determined from the previous buffer calibration.
2. Press CAL on the remote controller.
3. Press NEXt until
PH CAL
appears. Press ENtER.
4. Press NEXt until
PH SLOPE
appears. Press ENtER.
5. the
SLOPE
prompt appears. use the arrow keys to change the flash-
ing display to the desired slope. Press ENtER to save.
6. Press RESEt to return to the main display.
CALIBRAtE
pH CAL
EXIt
NEXt ENtER
CALIBRAtE
pH slOpe
EXIt
NEXt ENtER
CALIBRAtE
slOpe
EXIt
ENtER
5
9
.16
298
t°C + 273
93