Maintenance and Cleaning
NivuFlow Stick - rev. 00 / 27.01.2020
Page 69
Maintenance and Cleaning
WARNING
Germ contamination
Some parts of the measurement system may be contaminated by hazardous germs espe-
cially if the sensors are installed in wastewater. This is why precautionary measures shall
be taken while being in contact with cables and sensors.
Wear protective clothing.
40 Maintenance
40.1 Maintenance Interval
The flow measurement system type NivuFlow Stick is conceived to be virtually free of calibra-
tion, maintenance and wear.
NIVUS, however, recommend having the entire measurement system inspected by NIVUS
customer service
once per year
.
The maintenance interval may vary depending on the use case. Extent and intervals of
maintenance depend on the following conditions:
•
Sensor measurement principle
•
Material wear
•
Process liquid and hydraulic conditions
•
General regulations for the operators of the measurement facility
•
Ambient conditions
In addition to the annual inspection NIVUS recommends a complete maintenance of the
measurement system by one of the legally associated companies and subsidiaries of NIVUS
group
after latest ten years
.
In general, the inspection of instruments/sensors is a basic measure which helps to increase
operational safety as well as the lifetime.
40.2 Customer Service Information
For annual inspection of the entire measurement system or complete maintenance after ten
years latest contact our customer service:
NIVUS GmbH – Customer Service
Phone +49 (0) 7262 9191 - 922
41 Cleaning
41.1 Transmitter
When closed and locked the NivuFlow Stick enclosure complies with IP67 protection degree
and hence is less sensitive.
Do not use
high pressure cleaners however.
Do not use
sharp cleansing agents or solvents. Light household cleaners or soapy water can
be used.
41.2 Sensors
Information on how to maintain and to clean the sensors shall be necessarily observed. Such
Information can be found in the according technical manual “Technical Instructions for Corre-
lation Sensors and external Electronic Box”.
The Technical Description is available as download from