Hach-Lange SENSION+ EC7 - Manual (Page 9)

Advanced operation
Change the date and time
The date and time can be changed from the Date and Time menu.
1. Use the to enter the Date and Time menu. The date and time
format: dd-mm-yyyy 24h.
The attribute to be changed will be automatically highlighted and will
advance to the next attribute if no or is pushed.
2. To change an attribute, push or when the highlighted attribute is
selected.
The current date and time will be shown on the display.
Adjust the display contrast
1. Push the and at the same time to enter the Display contrast
menu.
2. Use the or to adjust the contrast of the display. The meter
returns automatically to the measurement screen after 3 seconds.
Change the stirring settings
The stirring speed can be changed during calibration and during a
measurement.
1. Push during a calibration or during a measurement to enter the
stirring menu.
2. Use the or to change the stirring speed in %.
Change the temperature units
The temperature units can be changed to Celsius or Fahrenheit.
1. From the main screen push .
2. Push to select between Celsius or Fahrenheit.
Maintenance
W A R N I N G
Multiple hazards. Do not disassemble the instrument for maintenance or service.
If the internal components must be cleaned or repaired, contact the
manufacturer.
C A U T I O N
Personal injury hazard. Only qualified personnel should conduct the tasks
described in this section of the manual.
Clean the instrument
N O T I C E
Never use cleaning agents such as turpentine, acetone or similar products to
clean the instrument including the display and accessories.
Clean the exterior of the instrument with a moist cloth and a mild soap
solution.
Clean the probe
Clean the probe as needed. Refer to Troubleshooting on page 11 for
more information about cleaning. Refer to the probe documentation for
information about the probe maintenance.
Use the cleaning agents listed in
Table 1 for contaminations on the
conductivity probe.
Table 1 Cleaning agents for the conductivity probe
Contamination Cleaning agent
Grease, oils, fats Electrode cleaning solution
Limescale 0.1 N HCl solution
Replace the magnetic stirrer
If the magnetic stirrer does not start, follow the numbered steps to
replace the magnetic stirrer.
English 9