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User‘s manual for CX-461 multifunction meter v1.40
2. CHARACTERISTICS OF THE METER
CX-461 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,
which can display readouts of four different measurement functions
simultaneously. Thanks to its touchscreen keyboard the operation of the
meter is very comfortable. Waterproof housing enables working in difficult
conditions. Minimised size and weight facilitate field work. The most important
features of CX-461 are:
- high accuracy and stability;
- automatic and manual temperature compensation;
- 1 - 5 point pH electrode calibration;
- automatic recognition of pH buffers and standards;
- default values of buffer solutions which may be changed by the user;
- possibility of automatic introduction of temperature influence on the value of
pH buffer solutions (NIST norm);
- information about the pH electrode condition;
- storing of the calibration date and parameters of three electrodes (sensors)
in each function;
- wide range of conductivity measurement with seven automatically switched
subranges (autorange);
- converting conductivity to salinity in NaCl or KCl according to actual
dependence to conductivity;
- converting conductivity into TDS (g/l or %) with possibility of introducing the
TDS coefficient;
- calibration of the conductivity cell by introducing the K constant or on
standard solutions;
- possibility of determining K constant of the conductivity cell;
- automatic compensation of the salinity influence on the oxygen
measurement using the salinity value measured by the meter;
- measurement and automatic compensation of the atmospheric pressure
influence on the dissolved oxygen concentration;
- possibility of introducing the date of calibration validity termination and
signalling its expiry;
- storing measurement results with time, date and temperature, taken as
single or series of measurements with set time interval;
- RS-232 output (USB with additional adapter);
- large LCD backlit display with brightness control and touchscreen;
- real time clock with date;
- automatic switch off after time set by the user.
