AFETY PRECAUTION
Only qualified person should operate, install and assure the maintenance.
All nternational and European recommendations on electrical installation should be applied.
• The device may only be connected to supply power, which complies with the specifications included in the technical data.
• The device must be disconnected from all sources of power during installation and maintenance work.
• The device may only be operated under the conditions specified in the operating instructions.
FUNCTION - DE CRIPTION
The turbidity-measuring device determines the turbidity of liquids using the light absorption and scattered light measuring method.
The inline measuring cell at the sensor set makes use of two R transmitters and one R receiver in pulsating light mode ( R mea-
suring method according SO 7027). The interconnected BAMOPHOX TUR measuring amplifier (option) analyses the 4 to 20 mA
signal generated by the sensor set.
MOUNTING
- The fixture must be installed vertically. – Best installation is the mounting in an ascending pipe with slow down section 600 mm
in front and 400 mm behind the turbidity-measuring device.
- The sensor fixture must be completely filled with liquid during the performance of measurements.
nstall to the vertical portion of a siphon trap if necessary.
- Air bubbles distort measurement results.
- Glass windows must be clean – clean them at regular intervals as required.
ET UP – DI PLAY
The sensor set consists of a receiver module with microprocessor-controlled analysis electronics and two emitter modules.
The sensor set generates a 4 to 20 mA output signal in accordance with the following diagram. Measuring ranges are selected with
the help of the D P switches on the receiver module.
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Note: The tubidity measuring instruments are calibred with the internationally
specified standard suspension Formazin.
The indication takes places thus not in form of the measured light intensity, but
as concentration of the Formazin calibration suspension.
During the measurement with any liquid, this means thus that the liquid
concerned causes the same light scattering as the standard suspension of
the indicated concentration.
Measured values of other turbidity measuring instruments, wich use other
calibration suspensions and measuring angle, cannot be compared direcly
with those with Formazin calibrated measuring instruments.
DIP-switch
range et-up
Terminals Calibration
potentiometers
Receiver module PCB
Over range
n case of measure out of
the rang, the 4-20mA signal
is froze to 22mA
Indication
Green LED = 1Hz blinking Ready, measuring in operation
Green LED = permanent ON Ready, measuring not in operation
Green LED = OFF No power supply, or defective
Fault indication
Red LED = ON Measuring circuit faulty, (short circuit, or broken)
(court circuit ou rupture)
*) DIP5 and 6 = not connected / no function
**) Armatures with nominal diameter > DN 65
Measuring range DIP1 DIP2 DIP3 DIP4 DIP5* DIP6*
MB1 = 0.1... 50 FNU OFF OFF OFF ON NC NC
MB2 = 0.1...100 FNU ON OFF OFF ON NC NC
MB3 = 0.1...200 FNU OFF ON OFF ON NC NC
MB4 = 0.1...500 FNU (**300) ON ON OFF ON NC NC
MB5 = 100...1000 FNU OFF OFF OFF OFF NC NC
