Nivus NivuFlow 750, Instruction Manual

Page: 38 / 162

Instruction Manual
NivuFlow Mobile 750
page 38 NFM 750 - rev. 03 / 27.05.2020
23.1.4 Operation/Charging with direct connection to mains power
Thanks to the combined power adapter/battery charger (see Fig. 23-1) NivuFlow Mobile can
be also operated directly with 100...240 V AC mains power.
WARNING Danger of explosion during operation with direct mains power connection in Ex area
Do not operate the instrument within Ex areas using direct mains power connection but
only out of Ex areas.
During operation the battery pack is charged in the right-hand slot additionally. NIVUS, how-
ever, recommend the use of the battery charger since the battery will be charged only to ap-
prox. 75 % of the total capacity (see chapter “23.1.2 Charging the rechargeable battery pack”).
WARNING Risk of explosion removing/inserting and charging the battery pack in Ex areas
Always remove/insert and charge the rechargeable battery pack outside of Ex areas. Never
replace the battery within an Ex area.
Plug the battery to charge into the right battery socket and connect the power adapter/battery
charger (Fig. 23-1) to the multifunction socket of the NivuFlow Mobile. Leave the battery in
the instrument to charge it during mains power operation. In case of power failure the battery
is used as buffer.
Charge/Discharge battery sockets
While charging only the battery plugged into the right socket is charged however.
When discharging the battery with the higher capacity (independent of the socket) is used
until the capacity of both batteries has reached the same level. After that both batteries are
discharged equally.
24 Sensor Installation in General
This chapter describes the sensor types and where they are usually installed. You can find
detailed installation instructions for the individual sensor types in the respective installation
instruction.
Note
Always ensure compliance with the safety regulations during installation works.
24.1 Sensor Installation Basics
The sensor installation at the measurement place extremely depends on the conditions on
site. Therefore always make sure that there are proper hydraulic conditions and an appropri-
ate calming section available on site. Sensor type and sensor fastening need to be deter-
mined depending on the measurement place.
Detailed information on how to select a calming section and the installation of
sensors can be found in the according installation instruction.