Jenway 3540 User Manual
Page 67

An example screen of stored results
To review stored results use the right or left arrow key to highlight the Results tab.
See section 3.3 for details of the alternative actions that can be taken when the
memory is full and for the various functions of the clear [CLR] key. Results can be
transmitted to a PC by pressing the print key.
7.4 Resistivity
Measurement
Resistivity is the reciprocal of conductivity and is sometimes used as the unit for
measurement of pure waters. Direct comparison is difficult as resistivity is recorded at
the sample temperature and is not subject to a reference temperature or temperature
co-efficient as is conductivity.
Resistivity value in M ohms replaces conductivity display
To display the Resistivity value press the up or down arrow when the Cond tab is
highlighted to change the tab indication from Cond to Res. Each channel has its own
endpoint indicator and the reading for individual channels should not be recorded until
its endpoint indicator is displayed.
Results can be stored in the internal memory using the powerful data logging
functions, see section 3.3. Simply pressing the Store [STO] key will save the result to
the next available location along with the date, time and any batch code entered in
the set up menu. Alternatively the data logging function can be set to automatically
store or print the results when the endpoint indicator is displayed saving any
intermediate key press between samples.