ADS Environmental Services FlowShark Pulse QR 775004 A1 - Manual (Page 43)

Delivery, Maintenance, and Handling 5-3
Maintenance
Because the measurement system primarily exists in a wastewater
environment, it may be contaminated with hazardous germs.
Therefore, please take special precautions when handling the
transmitter, cables, sensors, and associated equipment.
The FlowShark Pulse is extremely durable, is virtually maintenance-free, and does
not require calibration. The only item in the system that requires maintenance is the
combi sensor with the integrated pressure measurement cell.
If necessary, clean the transmitter enclosure with a dry, lint-free cloth. For heavy
soiling, ADS recommends using a mild detergent. Do not use abrasive cleansers!
To clean the enclosure surface with a damp cloth, first disconnect
the unit from the main power supply.
In flow that contains a significant amount of debris and/or pipes that experience a
substantial amount of silt, it may be necessary to clean the sensor regularly using a
plastic bristle brush, broom, or similar tool.
Do not use hard objects, such as wire brushes or scrapers, to clean
the sensor. A water hose with a maximum pressure of up to 50 psi (4
bars) can be used to clean most sensors. However, do not use a
water hose to clean a flow velocity sensor with a pressure
measurement cell (Types 3K and 4K).
Do not use a high pressure device for cleaning. This could damage
the equipment, producing measurement failure.
Due to the physical design of sensors with pressure measurement cells, these sensors
experience long-term drift in depth measurements (see Chapter 2, Overview and
Specifications). Therefore, ADS recommends calibrating sensors with integrated
pressure measurement cells twice a year relative to the respective zero point. The
best results are produced when the depth level is as low as possible or the sensor is
independent from the measurement medium. Refer to Chapter 8 for the calibration
procedure.
To ensure reliable, accurate, and trouble-free operation of the flow measurement
system, contact ADS to perform an inspection of the equipment at least once a year.