Salinity; Resistivity; Data Logger And Printer Functions; Setup For Data Logger Parameter - XS Instruments 8+Serie Manual De Instrucciones

• Salinity

Cond8+, Cond80+, PC8+DHS, PC80+DHS
Usually the UNESCO 1978 definition is used for this parameter, which provides the use of psu (Practical
Salinity Units) as unit of measurement corresponding to the ratio between the conductivity of a sample of
sea water and that of a standard KCl solution maked by 32,4356 grams of salt dissolved in 1 kg of solution
at 15 ° C. Relationships are dimensionless and 35 psu are equivalent to 35 grams of salt per kilogram of
solution. Approximately 1 psu is equivalent to 1g / L and considering the density of water is equivalent to 1
ppt. The UNESCO 1966b definition can also be used which provides that the salinity in ppt is expressed with
the following formula: S =-0.08996+28.2929729R+12.80832R
ppt
Where R= Cond value (at 15°) / 42.914 mS/cm (Conductivity of Copenhagen Seawater Standard).
Note: If you want to perform a Salinity measurement in low conductivity solutions, it is advisable to
deactivate the Ultrapure Water - P2.7 - temperature compensation.

• Resistivity

Cond80+, PC80+DHS
For low conductivity measurements such as ultrapure water or organic solvents it is preferable the resistivity
value compared to the conductivity value. Resistivity is the reciprocal of conductivity ρ= 1/κ (MΩ*cm).

Data Logger and printer functions

These series of devices are able to record values on internal memory or PC or to print them directly in
different formats using an external printer to connect through the appropriate RS232 port. Recordings can
be acquired manually or at preset frequencies.
To print: buy the printer separately, connect it with the RS232 cable to the connector labeled "Printer" on
the rear panel of the instrument, connect the power supply to the mains and switch it on by pressing the
switch I / O. For more information, see the technical manual of the printer. Use only the printer specified
by the manufacturer. Contact your local distributor for purchase or further information. The original printer
is already equipped with a roll of plain paper, power supply and RS232 cable for instrument connection.
PC connection: connect the USB type B cable inside each package to the USB port identified as "PC" on the
rear panel of the instrument and the other end to a COM port on the computer.
Use only the USB cable supplied with each instrument.

• Setup for Data Logger parameter

• In measurement mode press "
keys to scroll until "Data Logger" menu and press
• Use and
• Use and keys to move and then select the program you want to edit.
The table below shows the structure of the setup menu for the Data Logger parameter, for each program
there are the options that the user can choose and the default value.
Program Description
P5.1
Save data
P5.2 Data logging type
P5.3 Print format
P5.4 Delete data in memory
* function available only for 80+ Series
P5.1 Save data
Enter this menu to select the location to save the recorded values:
Memory - factory default - The recorded data is saved in the internal memory of the device. This
•
serie of tools can store up to 1000 data in total, the progressive registration number appears alongside
the icon .
Printer Data is directly printed on an external printer connected through the RS232 port (see
•
outputs connections). Enter P5.3 menu to select which information print in the header.
UM Serie 880 EN rev.2 30.07.2020
-10.67869R
2
MENU" key to enter the SETUP menu.
Options
Memory – Printer – PC
Man – Seconds – Minutes - Hours
Simple – Complete – GLP*
YES - NO
29
+5.98624R -1.32311R
3 4 5
key to confirm.
Factory default
Mem
Man
Simple
No
EN