Lutron Electronics PPH-2108 Operation Manual page 16

* When adjust the Offset value, the " SV indicator " ( 3-3, Fig. 1 )
and Temp. indicator ( 3-11, Fig. 1 ) will light.
Remark :
* For example of " Temp. Offset value setting " :
The Temp. reading value is 18.2
The offset value is 1.1
The new display value will be 19.3 ( 18.2 + 1.1).
Probe Calibration Period Setting ( PCPS )
Typically the pH electrode should be calibrated
after it is used for a certain period.
" Probe Calibration Period Setting function " can set a
period time ( unit is hour, default value is 720 hours ),
then after the pH electrode usage hours reach to setting
PCPS hours, the display reading will present warning
message to inform the user should to execute the new
calibration procedures.
1)After finish the Temp. offset value setting, press the
" Set Button " ( 3-4, Fig. 1 ) twice, the " Display "
will show " PCPS ", now the meter is ready for the
the PCPS value setting.
2)Use the " "
Button " ( 3-6, Fig. 1 ) to adjust the desiring " Probe
Calibration Period Setting value ( PCPS value ) ".
* When adjust the PCPS value, the " SV indicator " ( 3-3, Fig. 1 )
and pH indicator ( 3-10, Fig. 1 ) will light.
* When the meter's usage hours reach to the PCPS value, the
Display will show text " CAL " and the measurement value
in alternation.
* It can reset the usage hours to zero by pressing the
" Set Button " ( 3-4, Fig. 1 ) and the "
( 3-5, Fig. 1 ) at the same time.
Button " ( 3-5, Fig. 1 ) and the "
▼
13
▲
Button "
▼