Carl Roth COND 50 VioLab, Instruction Manual

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UM Serie 50VioLab EN rev.1 19.05.2020
EN
P4.0 TDS SETTING P4.1 TDS Factor
P9.0 SETTINGS P9.1 Temperature U.M.
P9.4 Brightness
P9.6 Parameters Setup
P9.8 Reset
Temperature measurement ATC – MTC

ATC : The direct measurement of the sample temperature for all parameters is carried out through the
NTC 30KΩ probe, which can be either integrated into the sensor (electrode and / or cell) or external.

MTC
: If no temperature probe is connected, the value must be changed manually:
keep pressed or until the value starts to flash; then adjust it by continuing to use the
directional keys; then press to confirm.
pH Parameter
PH 50 Vio; PC 50 Vio
On this series of devices, it is possible to use pH sensors with integrated temperature probe or to connect
two different sensors. Connect the pH electrode to the BNC type connector marked in green. Connect the
temperature probe to the RCA / CINCH Temp connector always marked with a green background.
The instrument is also able to recognize the DHS sensor, an innovative electrode that stores calibration data
and that can be used immediately after on any enabled instrument.

pH parameter Setup

In measure mode press to access the SETUP menu.

Press the button to access the pH SETTINGS P1.0 menu.

Move with the keys and to select the program to access.
The table below shows the setup menu structure for the pH parameter, and for each program the options
that the user can choose and the default value:
Program Description Options Factory Default Settings
P1.1 CAL BUFFER SELECT USA – NIST – Custom USA
P1.2 SELECT RESOLUTION 0.1 – 0.01 0.01
P1.3 STABILITY FILTER LOW – MEDIUM - HIGH MED
P1.6 CALIBRATION DATA - -
P1.8 RESET SETTINGS YES – NO NO
P1.9 TEMPERATURE CAL YES – NO -
P1.1 Selection of pH buffers

Access this setup to select the buffer family for performing the electrode calibration.

Calibration lines from 1 to 3 points can be made.
During calibration, press to exit and save the points calibrated up to that moment
(see calibration paragraph).