Operational Guide
32
If the reading is out of range, the full-scale value
(400.0%) will be displayed blinking.
Natural Sea Water Scale
The Natural Sea Water Scale extends from 0 - 80.0 g/L. It determines salinity
based upon a conductivity ratio of sample to “standard seawater” at 15 °C.
Where R
15
is the conductivity ratio and salinity is de ned by the following
equation:
S = - 0.08996 + 28.2929729R
15
+ 12.80832R
15
2
- 10.67869R
15
3
+ 5.98624R
15
4
-1.32311R
15
5
Note: The formula can be applied for temperatures between 10 ºC and 31 ºC.
If the reading is out of the measurement range, the display will ash the highest
value possible and a warning message will be displayed. If this occurs during a
log a “!” will be placed next to the measurement unit. Data found in the CSV le
with a ”!” should not be considered relible.
Salinity
Measurements
Setup/Installation 9
The main operating modes of edge
EC
® are setup, calibration, measurement,
data logging, and data export. Follow this general outline of steps to get you
started. The following topics are expanded upon in the sections that follow in
this manual.
1. Familiarize yourself with the design features of this unique meter.
2. Decide how the meter will be used and set up the wall or bench cradle in a
clean area near line power.
3. Turn edge
EC
® on using the ON/OFF button located on the top of the meter.
4. Plug in the probe required for measurement.
5. SETUP the measurement parameters required for the measurement you
will be making.
6. Calibrate the sensor/probe.
You are now ready for measurements.
Bench Cradle Setup
Insert electrode holder arm into the post
on the pivoting base.
Connect the probe connector to the
socket located at the bottom of the
instrument.
Slide edge
EC
® into the cradle while
positioning the probe cable behind the
cradle. Put the probe/sensor into the
electrode holder and secure cable in
clips.
Connect the power adapter cable to the
rear socket of the bench cradle. Connect
the other end to the power adapter and
plug into line power. Verify the battery
icon indicates charging.
Wall Cradle Setup
Choose suitable wall location. (Use 2.5
mm or US #3 bit). Fasten the wall cradle
using the provided screws. Snap cover
over screw heads.
Setup/
Installation
Setting Up
edge
EC
®