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The measurement error or instability can be caused by the flow cannot guarantee the
full pipe or high gas accumulation.
2.3.3 Installation precautions and maintenance
(1) The flow cell should be installed in the pipeline where the flow rate is stable and it is
not easy to produce bubbles. It can be installed in the way of side flow, so as to
avoid inaccurate measurement.
(2) The concentric tubular electrode paperback, oblique or vertical installation should
be installed in the direction of FLOW and deep into the flowing water body；other
structural shape electrodes prevent the dissipation pressure due to turbulence in the
measurement room when electrode side direction installation and cause
measurement
data disorder.
(3) The measurement signal is weak signal acquisition, the cable must be independent
of the line. It is prohibited to connect with power line and control line in the same
group of cable connectors or terminal boards and prohibited to wear pipe and tie
with power line and control line, avoid interference with measurement or damage,
breakdown instrument measurementunit.
(4) The cable of the electrode is standard length and special cable before leave the
factory. When the measuring cable needs to be lengthened, please make an
agreement with the manufacturer before supply.
(5) Please keep the electrode measurement part clean when installed. Don't touch the
surface directly with hands or dirty objects. After contact with greasy dirt, grease and
glue, the accurate value can’t be measured for a longtime.
(6) The conductivity cell is a precise measuring component. It can’t be decomposed
and change the shape and size of the electrode. It can’t be cleaned, soaked and
mechanically scraped by strong acid or alkali. These operations will lead to the
change of electrode constant and affect the measurement accuracy of the system.
(7) The measuring cable is the special cable, and the other specifications of cable can’t
be changed at will. All the incorrect change and change without permission will
result in the error of measurement.
(8) The instrument is made of precision integrated circuits and electronic components.
It should not be installed in direct sunlight. It should be placed in a dry environment
or in the control box to avoid leakage or measurement errors caused by water
droplets sputtering or moisture.
(9) In order to ensure the safe operation of the installation, connect the power after the
