Elcometer 138 User Manual page 9

5 USING THE CONDUCTIVITY METER (continued)
5.3 CONTROLS AND DISPLAY
The Elcometer 138 Conductivity Meter is operated using 3 buttons and
displays readings and other information on the LCD screen.
2
1
GUIDE TO CONDUCTIVITY METER & DISPLAY INDICATORS
1 Measurement Cell
2 Protection Cover
3 Lithium Batteries
4 MEAS Button
5 ON/OFF Button
6 Strap Eyelet
7 CAL Button
8 Waterproof Gasket
4
3
Place a liquid sample in this cell to measure it
with the electrode located on the bottom of
the cell.
Protects the measurement cell and at sensor
in storage.
CR2032 x 2
Switches the calibration mode to the
measurement mode, activates / deactivates
the reading locking function in the
measurement mode and starts / applies
settings in the special setting mode.
Turns the meter On / Off.
A strap can be attached here.
Starts calibration and switches items /
settings in the special setting mode.
Makes the meter waterproof.
5
6
7
9 10
8
15
R
11 12 13
14
en-8