Electro-Chemical Devices (ECD) L20 C - Manual (Page 5)

Display and Key Functions
A. Display
Figure 2
1. mS-
millisiemens, indicates
Conductivity measurement
7. mg/L-
Milligrams/Liter indicates a
TDS measurement
2. BAT-
Low Battery Indicator
8. CELL K=
Indicates conductivity Cell
Constant value
3. uS-
Microsiemens, indicates
Conductivity measurement
9. %/°C-
Indicates the temperature
compensation coefficient
4. CAL-
Displayed when the
Instrument enters into the
calibration mode
10. Main Display
Numeric values for TDS or
Conductivity
5. AUTO-
Auto ranging indicator
11. Secondary Display
Numeric values for
temperature
6. ATC/MAN-
ATC, indicates Automatic Temperature Compensation
MAN, indicates Uncompensated Conductivity reading
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