135
Menu Display
ISFET zero adjustment
Immerse sensor in a zero point buffer
(6.5 ... 7.5).
Enter temperature-corrected pH value
(see buffer table).
Start zero adjustment.
Return
Dip sensor in buffer solution!
Enter temperature-corrected pH in the
range pH 6.5...7.5
then ‘’Start’’ calibration.
25.6°C
7.00 pH
Enter cal temp
Buffer
+025.6°C
+07.00 pH
ISFET zero adjustment
Start
End
Drift check running!
Zero correction
25.6°C
7.00 pH
Nominal buffer value
Response time
Electrode voltage
Calibration temperature
s
mV
°C
pH
10
122
7.00
25.6
ISFET zero adjustment
At the end of the adjustment proce-
dure the ISFET zero (based on 25 °C)
is displayed. This is not the real sensor
value!
The actual value must be determined
afterwards by a complete two-point
calibration.
To abort, you can press the “End”
softkey. However, this reduces
adjustment accuracy.
(Zero error of sensor up to
max. ±200 mV possible)
25.6 °C
7.00 pH
Calibration data record
Cal mode
Response time
ISFET zero
End
0070 sec
Active adjustment
ISFET zero
24.03.07 09:20
+0122 mV
Содержание Protos 3400
Страница 12: ...12 ...
Страница 160: ...160 ...
Страница 177: ...177 Appendix Buffer Table Mettler Toledo ...
Страница 179: ...179 Appendix Buffer Table DIN 19267 ...
Страница 181: ...181 Appendix Buffer Table Techn Buffers to NIST ...
Страница 182: ...182 Appendix Buffer Table Hamilton ...
Страница 183: ...183 Appendix Buffer Table Kraft ...
Страница 184: ...184 Appendix Buffer Table Hamilton A ...
Страница 185: ...185 Appendix Buffer Table Hamilton B ...
Страница 186: ...186 Appendix Buffer Table HACH ...
Страница 206: ...206 Index ...
Страница 207: ...207 Index ...