Chapter 4
pH, pH/ISE and pH/LogR Measurement Modules
46
Orion Versa Star Pro Meter User Manual
Thermo Scientific
VSTAR-LR
Versa Star pH/LogR Module
1.
Remove the shorting cap protecting the BNC connector on the module.
2.
Connect a pH electrode or ORP electrode to the BNC connector on the module. LogR
technology allows the temperature to be measured using the glass bulb of a pH electrode.
3.
Connect an ATC temperature probe to the 8 pin MiniDIN connector on the module.
4.
Connect a reference half-cell electrode to the pin tip connector on the module (for use
when a half-cell sensing electrode with BNC connector is used).
5.
Prepare the electrodes for use as instructed in the electrode user manuals.
Example Electrode Connections
Typical BNC connector on pH electrode, ORP electrode or ion selective
electrode (ISE)
Typical waterproof BNC connector on pH electrode, ORP electrode or ion
selective electrode (ISE)
Typical 8 pin MiniDIN connector on ATC temperature probe
Typical pin tip connector on reference half-cell electrode
8 pin MiniDIN
BNC
Pin Tip
