User Manual

Optical pH Sensors | User Manual

2.1 Explanation of the Sensor Code

The pH sensors are delivered with an attached sensor code which must be entered in the

Settings window. The following gives a short explanation about the information given in

the sensor code.

Example Code: SAE7 -532-205

SA: Sensor Type. Factory calibration values of the sensor types (PK7, PK8….)

E: LED Intensity of the device

7: Amplification of the measurement signal

532 – 205: Pre-calibration values

2.2 Conditions in the Sample

When entering the sensor settings, the Conditions in the Sample during the

measurements have to be determined. There are two important parameters to be taken

into account and which can be automatically compensated:

• Temperature

• Salinity

2.2.1 Temperature

Several options for Automatic Temperature Compensation of optical pH sensors are

available:

• External Temperature Sensor (Pt100, temperature port)

• Fixed Temperature (must be entered, kept constant and controlled)

• Optical Temperature sensor connected to a channel connector (its channel number

must be selected) of a multi-channel

FireSting pro

If External Temperature Sensor or Optical Temperature Channel is selected, automatic

compensation of temperature changes on the respective pH sensor readings is activated.

The compensation temperature will be displayed in the corresponding channel row of

the main window.

FireSting pro: If External Temperature Sensor or Optical Temperature Channel is

selected, automatic compensation of temperature changes on the respective pH sensor