ELMETRON CX-401, User Manual

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User‘s manual for CX-401 multifunction meter v6.0x
2. CHARACTERISTICS OF THE METER
CX-401 multifunction meter belongs to the newest generation of measuring
devices. It offers wide range of additional functions. The meter ensures high
accuracy and repeatability of readings. Two kinds of power source: the
rechargeable battery and the power adapter, enable work in field and long-
lasting measurements in the laboratory. The meter’s memory is independent
from power supply. The meter is equipped with a large backlit custom LCD
display, enabling observing simultaneously: the measured function, the
temperature value and additional symbols which make working easier.
Waterproof housing makes working in difficult conditions possible. Minimised
size and weight make the meter very handy especially during field work.
Main features of CX-401 are:
-
high accuracy and stability of readings;
-
automatic and manual temperature compensation;
- pH electrode calibration in 1 to 5 points;
-
automatic recognition of pH buffers and standards;
-
factory set values of buffer solutions with possibility of changing their
value by the user;
-
option of automatic introduction of temperature influence on the value of
pH buffer solutions (NIST norm);
-
information about the pH electrode condition;
- storing of the date and calibration characteristics of three electrodes
(sensors) in each function;
-
possibility of introducing the time of calibration validity and signalling its
expiry;
-
wide range of conductivity measurement with 6 automatically switched
subranges (autorange);
- converting the conductivity to salinity in NaCl or KCl (g/l or %) according
to actual dependence to conductivity;
-
converting conductivity to TDS (g/l or %) with possibility of introducing the
TDS coefficient;
-
measurement of resistivity in
Ω
cm;
- temperature compensation for measurements in natural, pure and ultra
pure water;
-
calibration of the conductivity cell by introducing the K constant or in 1 to
5 standard solutions;
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function of determining K constant of the cell;
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compensation of the salinity influence on the oxygen measurement with
use of the salinity measured by the meter;
- measurement and automatic compensation of the atmospheric pressure
influence on the oxygen measurement;
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signalising of the reading stabilisation (READY);
- holding the reading on the display (HOLD);
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storing measurement results with time, date and temperature, taken as
single or series of measurements with set time interval;