20
ATENTION
!
C difference > 30 %
Continue...
CALIBRATION 2
standard
ATENTION
!
Check the cell.
Check the standards.
CALIBRATION 2
standard
ATENTION
!
C < 0.05 ó > 50.00
Continue...
CALIBRATION 2
standard
ATENTION
!
Check the cell.
Check the standards.
CALIBRATION 2
standard
ATENTION
!
Check temperature.
Check the cell.
CALIBRATION
X standard
ATENTION
!
Check the cell.
CALIBRATION
2/3 standard
STANDARD TEMPERATURE
< 15
˚
C or > 35
˚
C
Continue...
CALIBRATION
X standard
BUFFER NOT RECOGNISED
Continue...
CALIBRATION
X standard
SAME STANDARDS
Continue...
CALIBRATION
2/3 standard
UNSTABLE READING
Time > 150 s
Check temperature.
Check the cell.
MEASURE
by stability
CE
out of range
Check the cell.
MEASURE
by stability
out of range
˚
C
Check temp. sensor
MEASURE
by stability
MEASURE STABLE
23.2
˚
C
728
uS/cm @ 25
˚
C
Calibrate again
ATENTION! TC = 0
It’s impossible to
meas. salinity
Continue...
MEASURING
by stability
6. Maintenance
6.1. Clean the instrument
Important note:
Never use cleaning such as turpentine, acetone
or similar products to clean the instrument including the display
and accessories.
Only clean the housing and accessories using a soft, damp cloth.
Mild soap solution may also be used. Dry the cleaned parts care-
fully with a soft cotton cloth.
CAUTION
When using chemicals or solvents, comply with the instruc-
tions of the producer and all local safety regulations.
6.2. Sensor cleaning
See the manual of the sensor in use.
7. Warning messages
During calibration
During measurement
EC71 HACH LANGE 7010.indd ANG:20
EC71 HACH LANGE 7010.indd ANG:20
8/7/10 16:14:58
8/7/10 16:14:58
