Hach Lange sensION+ EC71 Manual page 10

4. Operation
4.2. Start-up
Connect to the rear panel of the instrument:
- the conductivity cell
- the magnetic stirrer
- the plug-in power supply
Follow the next steps:
For the first time...
Press
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Language ENGLISH
Sprache DEUTSCH
Idioma CASTELLANO
Langue FRANÇAIS
Lingua ITALIANO
Idioma Português
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DATA OUTPUT
Deactivated
For printer
For computer
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EC MEASURE
Calibrate EC
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EC CALIBRATION
Calibrate EC
Successive times...
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EC MEASURE
New calibration
in 15 days
6
sensION+ EC71 HACH LANGE 7010.indd ANG:6 sensION+ EC71 HACH LANGE 7010.indd ANG:6
Instrument switched off.
Press the keys to select the
language.
Press the keys to select the data
output. If a printer is available select the
corresponding options appearing on the
display. See page 17 (shady options)
Calibrate with standard solutions.
4.3. Factory configuration
+
The sensION ™ is an instrument for EC, salinity and TDS
EC 71
measurements. The factory configuration is suitable for the
majority of applications.
Electrical conductivity (EC)
Temperature of reference (TRef) 25 ˚C
Temperature coefficient (CT) linear 2.00 %/ ºC.
Measurements: By stability.
In continuous pressing twice the key
Calibration in 1, 2 or 3 points, with molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Salinity (NaCl)
Temperature of reference (TRef) 25 ˚C
Temperature coefficient (TC) linear 2.00 %/ ºC.
Measurements: By stability.
In continuous pressing twice the key
Calibration in 1, 2 or 3 points, with molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Total dissolved solids (TDS)
Temperature of reference (TRef) 25 ˚C.
Temperature coefficient (TC) linear 2.00 %/ ºC.
Factor 0.64
Measurements: By stability.
In continuous pressing twice the key
Calibration in 1, 2 or 3 points, with molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Resistivity ( )
Temperature of reference (TRef) 25 ˚C
Temperature coefficient (CT) linear 2.00 %/ ºC.
Measurements: By stability.
In continuous pressing twice the key
Calibration in 1, 2 or 3 points, with EC molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Re-programming
To perform any modification in the default programming, for
example different measuring modes, calibration with other type
of buffers, etc. see corresponding chapters.
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