46
7.3 %/uA @ 20°C. If the probe slope (1 mil membrane) is greater than
12.6 %/uA or lower than 5.9 %/uA, the membrane/probe may need
service. See
12. Troubleshooting, Error Codes, E3
and
E4
.
C:
The temperature at the time of calibration in °C.
Sensor
Press the [SENSOR] soft-key to display the following sensor diagnostics screen:
System Parameters
Sensor
Cal. Temperature
=
22.85 C
Probe Slope
=
6.43 %/uA @20C
Probe Offset
=
0.000 uA
Probe Current
=
16.91 uA
Pressure Offset
=
830 mbar
P = 981
Cal. Temperature:
The temperature at the time of the last calibration in °C.
Probe Slope:
The slope of the dissolved oxygen probe in percent per microamp
corrected to 20°C. The slope of an ideal probe using a 1 mil
membrane is 7.3%/uA @ 20°C. If the probe slope (1 mil
membrane) is greater than 12.6 %/uA or lower than 5.9 %/uA, the
membrane/probe may need service. See
Codes, E3 and E4
.
Probe Offset:
The zero offset current (background current) of the DO probe in
microamps. The factory default value is 0.000 uA. This value will
only change after a zero calibration is performed (see
). If this value is greater than 0.15uA (after a zero
calibration) the membrane/probe may need service. See
Troubleshooting, Error Code E2
.
Probe Current:
The present (real time) DO probe current in microamps.
Pressure Offset:
The offset of the barometer in millibars. This value will change
whenever the barometer is calibrated. The normal range is 300 to
1300 mbar.
P:
Current barometer reading in millibars.
Press [MODE] to return to the Diagnosis menu. Press [MODE] two more times to return to the
Main menu.
