General; B&C Electronics Cl - B&C CL 7685 Operator's Manual

B&C Electronics CL 7685

1 GENERAL

This series of controllers with built-in microprocessor forms an advanced system of measurement and
regulation of pH - ORP - Conductivity - Dissolved Oxygen - Chlorine in industrial processes.
Compiled into these instruments is all the know-how of B&C Electronics built up over more than 20
years of experience in the field of industrial electrochemical analysis.
We have continually developed and updated these products keeping in mind the maximum
consideration for quality, reliability, completeness of functions, simplicity of handling, and also the
cost.
The computing capability and the versatility of the microprocessor are accompanied by friendly
software specially designed to make the use of the instrument, the programming of its functions,
routine checks and calibrations easily accessible even for an untrained operator.
The alpha-numeric backlit liquid crystal display helps the operator supplying him with all the
information on functioning and on operating, while the software suggests possible steps for calibration
and set-up.
The display supplies, at the same time as the measurement, an indication of present status of the output
relays and of the output current.
For a higher level of checks, the display gives an indication of the operating conditions of the
electrochemical sensors, the current status of the calibrations, set points and analog output.
The user friendly operation of the instrument saves the operator feats of memory and continual
reference to the instruction manual.
All operations are carried out using the five key pads on the front panel, for the mode selection, the
input of calibration and set point data and the setting-up. (Fig. 1)
There are no knobs or switches to manipulate in order to operate the unit. This makes the instrument
rugged and more corrosion resistant.
A non-volatile EEPROM memory assures measurement parameters are maintained in the event of a
power interruption.
The software is provided with a "watch-dog" check for correct functioning of the programs.
The electrical circuit is protected by a device which comes back into operation automatically following
an overload or a wiring error.
- –
Operator's Manual - Rev. C - 05/05 4