Sensor Management; Data Management; Factory Reset - OHAUS ST400 Manual De Instrucciones

EN-12
Temperature unit, Celsius or Fahrenheit；Note: ° C = 5/9 (° F - 32)
Alpha-Coefficient: For different samples, the conductivity value varies with temperature.
Generally, the default value of Alpha-Coefficient for ordinary water sample is 2%/° C. If you set the
temperature correction coefficient value as 0 %/° C, that means NO Temperature Compensation
for the conductivity measurement. The meter displays the real conductivity value at current
temperature. The temperature correction coefficient of different samples is different. Please
confirm the temperature of the sample.
TDS factor: The conversion coefficient that was converted from the conductivity to the TDS.
Endpoint: you can choose automatic end-point mode or manual end-point mode. The rule of
automatic conductivity end-point is that the temperature change doesn't exceed 0.3 degrees and
the numerical value (conductance, TDS or salinity value) change doesn't more than 5 within 12
seconds.
Sensor ID, user can view the sensor ID
*only apply to ST400M
3.2.4

Sensor management

In the setup mode, press ▲ button, ▼ button and
review, create or delete electrode ID.
pH electrode or conductivity electrode can set five IDs and one default ID. The calibration data is
stored according to the electrode ID, and each ID can store last calibration records.
Review, press ▲ button and▼ button to choose sensor type (pH or conductivity*), select the sensor
to review the calibration data.
Create, press ▲ button and▼ button to choose sensor type (pH or conductivity*),then follow the
cursor press ▲ button and▼ button to name the sensor.
Delete, press ▲ button and▼ button to choose sensor type (pH or conductivity*), select and delete
the sensor and its calibration data.
3.2.5

Data management

In the setup mode, press ▲ button, ▼ button and
review or delete data.
The stored measurement data records include as follow:
Date, time, user ID, sample ID, electrode ID, measurement results, measurement mode,
measurement temperature, end-point mode, * reference temperature (conductivity), * temperature
correction coefficient (conductivity).
The meter can restore 1000 measurement records. For ST400M, the conductivity and pH records
can be added to 1000 storage records.
3.2.6

Factory reset

Reset settings: Reset user ID, backlight, pH setting, conductivity setting, etc. Please restart the
instrument after confirmation.
ST400 & ST400M Portable Meter
button to enter sensor management, to
button to enter data management, to