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Rev. 1 24/01/2020
recognize the chip, it works as a normal “analog” electrode.
• Errors during calibration
• NOT STABLE: The button was pressed with still unstable signal. Wait for the icon to appear
to confirm the point.
• WRONG BUFFER: The buffer is polluted or not part of the recognized families.
• SLOPE OUT OF RANGE: The slope of the sensor calibration line is out of the acceptable range 80 - 120%.
• CALIBRATION TOO LONG: The calibration exceeded the time limit: only the points calibrated up to that
moment will be kept.
mV Parameter
pH 70 Vio; PC 70 Vio
• In measure mode press the key and move to the mV parameter indicated by the icon .
• The display shows the measurement in mV of the pH sensor.
• The scrolling on the display of four red bands means that the measurement is not stable yet.
• Consider the measurement truthful only when the stability icon appears .
Note: This measurement is recommended to evaluate the sensor efficiency
ORP Parameter (Oxide-Reduction potential)
pH 70 Vio; PC 70 Vio
ORP sensors can be used on this series of devices to measure the Oxide-Reduction potential.
Connect the Redox electrode to the BNC type connector marked in green; if necessary, connect the
temperature probe to the RCA / CINCH Temp connector always marked with a green background.
It is possible to calibrate the sensor offset by performing automatic calibration on a predefined point. The
instrument automatically recognizes the Redox solution 475 mV / 25 °C; contact the local distributor to
proceed with the relevant purchase.
The instrument can correct the sensor offset by + 75 mV.
• ORP parameter Setup
• In measure mode press the key to access the SETUP menu.
• Use the directional keys to move to ORP SETTINGS P2.0 and access the menu by pressing the key
.
• Move with the keys and to select the program to access.
The table below shows the setup menu structure for the ORP parameter; for each program there are the
options that the user can choose and the default value:
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