Hach-Lange SENSION+ EC5 - Manual (Page 14)

10
6. Operation
6.1. Measurement
Note: the instrument must be calibrated before reading
the first conductivity value.
1. Press to turn on the instrument.
2. Remove the sensor protector.
3. Clean the sensor with deionized water.
4. Stir the sensor uniformly in the sample, holding it by
the top.
6.1.1. Stability measuring
Follow the diagram.
The reading is not stabilized on the screen until the sen-
sor signal varies less than ± 1 digit for 6 sec.
Once the reading has stabilized, the screen lights up
for 2 sec.
6.1.2. Continuous measuring
Once stability measuring has begun, press the key
twice.
The instrument displays the measured value directly on
screen at all times.
The continuous reading should always be started after
beginning a stability reading (see diagram).
To end a continuous reading, press
.
The display will light up for 2 sec.
Note: If the measuring instrument is not used for 5 min-
utes, it will shut off automatically.
6.2. Changing measuring units
(EC/NaCl/TDS)
To change the units of measurement from con-
ductivity (EC) to salinity (Sal/NaCl) or to TDS,
or vice versa.
2 s
+
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
@25ºC
μS/cm
ºC
EC
T
t
Stability
measuring
Continuous
measuring
2 s 2 s
TDS mg/l
Sal
mg/l
@25ºC
μS/cm EC
Stability measuring
Hold down the
key for 2 s.
sensION+ EC5 HACH_LANGE 0710.indd ANG:10 sensION+ EC5 HACH_LANGE 0710.indd ANG:10 6/10/10 12:03:16 6/10/10 12:03:16