Hanna Instruments Edge HI 2020 User Manual

Operational Guide
43
No Temperature Compensation (No TC): The temperature value is displayed,
but not taken into account. When this option is selected, the “NoTC” tag will be
displayed. The reading displayed on the primary LCD is the uncompensated EC
or TDS value.
Note:
• The default compensation mode is ATC.
• The compensation is referenced to the selected reference temperature
(see SETUP for details).
If temperature compensation is selected, measurements are compensated
using the temperature coecient (default value 1.90 %/ºC, is recommended for
natural water samples).
To change the temperature coecient, enter the SETUP mode and select
“T.Coef.(%/ºC)” (see SETUP).
The current temperature coecient can be viewed on the third LCD line by
pressing the pq keys until it is displayed. The value is displayed along with
Cell Factor (the factor that is used to convert the measured conductance to
conductivity, based on the geometry of the cell). If the temperature reading is
out of range, the closest full scale value will be displayed with “ºC” blinking on
the second LCD line.
Error Messages During Measurement
If the EC temperature exceeds the limit of the probe, the message “PROBE OUT
OF SPEC” will scroll on the third LCD line. The temperature will continue to be
displayed blinking. If temperature exceeds the meter specication of 120 ºC,
then “120 ºC” will blink on the display. If interval logging, the message “OUT OF
SPEC.” will alternate with the Log specic messages in both of these cases. The
Log le will indicate a “ºC!” next to the data. In the
case the temperature sensor is damaged, “BROKEN
TEMPERATURE SENSOR” , “---” along with NoTC tag
will be displayed and the unit tag will blink on the LCD.
If logging when this occurs, the Log le will indicate
“ºC!!” next to the data. Absolute conductivity (NoTC)
will be marked with an “A” in the CSV les and dashes
will appear in the temperature eld.
TDS Measurements
Press the RANGE key. The instrument will switch
to TDS measuring range. The TDS reading will be
displayed on the rst LCD line and the temperature
reading on the second LCD line. If the reading is out of
range, the full-scale value (100.0 g/L for ATC mode or
400.0 g/L for uncompensated TDS) will be displayed
blinking along with a message on the display.
Salinity Measurements (Not Available In Basic Mode)
Press the RANGE key twice to switch from conductivity to the congured Salinity
scale. Verify the desired scale is congured in SETUP. The meter supports three
salinity scales: Practical Scale 1978, Percent Scale %, and Natural Sea Water
1966, [g/L]. (Information on the 3 scales follows)
Salinity
Measurements
EC/TDS
Measurements
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information@itm.com1.800.561.8187

Hanna Instruments Edge HI 2020 Specifications

General

Brand	Hanna Instruments
Model	Edge HI 2020
Category	Measuring Instruments
Language	English