![background image](http://html.mh-extra.com/html/hanna-instruments/hi98199/hi98199_instruction-manual_591689017.webp)
17
PARAMETER SETUP MENU
EC REFERENCE TEMPERATURE (HI763093 EC PROBE ONLY)
Option: 25 °C or 20 °C
Press the functional key to select the EC reference temperature.
EC TEMPERATURE COEFFICIENT (HI763093 EC PROBE ONLY)
Option: 0.00 to 6.00 %/°C
For freshwater samples temperature coefficient is approximately 1.90 %/°C. If the actual temperature
coefficient of your sample is known, press
Modify
to enter
EC temp. coeff.
screen. Use the
alphanumeric keypad to enter the value, press
Accept
to save or
ESC
to return to the menu.
TDS FACTOR ( HI763093 EC PROBE ONLY)
Option: 0.00 to 1.00
TDS is calculated from the conductivity of the solution based on the following equation:
Typical TDS factor for strong ionic solution is 0.50, while weak ionic solutions (i.e. fertilizer) is 0.70.
Press
Modify
to enter
TDS factor
screen. Use the alphanumeric keypad to enter the value, press
Accept
to save or
ESC
to return to the menu.
SALINITY (HI764103 DO PROBE ONLY)
Option: 0.00 to 70.00 PSU
Press
Modify
to enter
Salinity
screen. Use the alphanumeric keypad to enter the value, press
Accept
to save or
ESC
to return to the menu.