Hach-Lange SENSION+ EC5 - Manual (Page 15)

11
6. Operation
ENGLISH
6.3.2. One-point calibration
Dip the sensor into the tube several times to homogenize the liquid. Do not
hold it by the tube to avoid heating of the standard solution.
Follow the diagram on the next page.
This form of calibration is acceptable when conductivity values around that
of the standard solution used are being measured.
Note: if the measuring instrument is not used for 5 minutes, it shuts off
automatically.
If errors occur during calibration, an error message will appear on screen
(see pg. 19).
Fig. 6. Preparation
6.3. Calibrating the conductivity sensor
Important note: before turning on the instrument, check that the sensor is connected.
The instrument must be calibrated before taking the first conductivity reading.
The calibration can be performed with 1, 2 or 3 points.
6.3.1. Preparation
1. Fill the tubes with the standard solutions (note the fill level).
2. Unscrew the protector and rinse the sensor with plenty of deionized water.
3. Screw the sensor on to the tube containing the first standard.
50 60
ºC
50 60
0.2... 200.000 μS/cm -30... 80
ºC
50 60
0.2... 200.000 μS/cm -30... 80
ºC
50 60 50 60 0 60 6
ºC ºC
0 0 0 50 60 50 60 0 60 6
0 2
200
000
μS/c
0.2... 200.000 μS/c
m
-30
8
m -30... 8
0 0 ºC C
50 60
0.2... 200.000 μS/cm -30... 80
ºC
50 60
0.2... 200.000 μS/cm -30... 80
ºC
1 2 3
sensION+ EC5 HACH_LANGE 0710.indd ANG:11 sensION+ EC5 HACH_LANGE 0710.indd ANG:11 6/10/10 12:03:17 6/10/10 12:03:17