Evoqua WALLACE & TIERNAN DEPOLOX 5 E, Инструкция по эксплуатации

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DEPOLOX
®
5 E flow cell
Description
3.
21
The sample water that flows tangentially into the 3-electrode mea-
suring cell (H) ensures continuous hydromechanical cleaning of
the sensor electrodes with special cleaning sand, thereby prevent-
ing natural soiling of the electrode surfaces. Clean electrode sur-
faces and a constant flow of sample water are decisive criteria for
a qualitative good oxidizing agent measurement and quick
response.
The 3-electrode measuring cell (H) is connected to 700 P electron-
ics module or 700 M electronics module through DFMe electronics
module (I) (DES sensor module for 3-electrode measuring cell).
The adjustable cell voltage Upot is output through the potentio-
static control circuit. A measuring cell current (µA signal) that is
proportional to the disinfectant concentration in the sample water
is evaluated with the 700 P electronics module or 700 M electron-
ics module.
The transparent cell body (G), which can be lit, holds the sensors
and is designed to allow convenient cleaning and servicing. These
additional sensors are installed in the mounting hole of the cell
body cover (F) with standard thread connections or in special sen-
sor mounts.
The LED glow stick is fitted in the cell body cover for visual inspec-
tion of the sensors, sand cleaning and for color indication of mes-
sages or faults.
The sample water runs off directly through the top cell body outlet
(J) through an outlet nozzle for hoses with inner diameter 6 mm. In
the case of the pressurized version, the sample water runs off
through a shut-off ball valve with G 1/2” A-connection. With the
pressurized version, a maximum back pressure of 1.5 bar is per-
mitted here.
For calibration, a sample taking unit (K) is fitted. It is used to draw
sample from the cell body through the low-pressure side of the flow
control valve and to drain the cell body for servicing.
Two calibration holding clips are attached in the cover of the
DEPOLOX
®
5 E flow cell. For hands-free calibration of the sensors
with buffer solution and calibration solution (bag or cup) the two
calibration mounting brackets are inserted on the side at the back
of the main housing.