EN-8 STARTER 300C Portable Conductivity Meter
4
STARTER 300C OPERATION
WARNING Do not operate the equipment in hazardous environments. The
equipment is not explosion protected.
WARNING When using chemicals and solvents, comply with the instructions of the
chemical producer and the general lab safety rules.
4.1
Calibration
4.1.1
Selecting a standard
Always begin by calibrating your conductivity electrode. When using the STARTER 300C
conductivity meter, you must select a standard for calibration. (See 3.3)
Press and hold the
to enter setup mode and set calibration standard. Use
or
buttons to select and press
to confirm. Press
to leave setup mode.
The four predefined calibration standards are:
10
μ
S/cm
84
μ
S/cm
1413
μ
S/cm
12.88 mS/cm
Tables for automatic temperature compensation are programmed in the meter for each standard
(see appendix 7.1).
4.1.2 Performing
a
calibration
When performing calibration, Ohaus recommends using Auto End Point Mode. After powering
the meter on, be sure the top of the screen shows
to ensure the meter is in Auto End point
Mode.
Auto or Manual End point Mode:
o
Press and hold
to change the End Point Mode.
o
When in Manual Mode, to manually reach a measurement or calibration value, you
need to press button-
when reading is stable and displays
: then the
sample reading or calibration value freezes,
blinks 3 times and freezes on
the display.
o
When in Auto End Point Mode, the meter determines when the reading is stable
then displays and locks the reading or calibration value automatically, the reading
freezes and blinks 3 times then disappears;
blinks 3 times and freezes on
the display.
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