Nivus NivuFlow 750, Instruction Manual

Page: 25 / 162

Product Specification
NFM 750 - rev. 03 / 27.05.2020 page 25
18 Specifications
Measurement principle
-
Flow velocity measurement using high accurate, spatially
allocated ultrasonic cross correlation
-
Level measurement depending on sensor type using transit
time measurement via air- or water-ultrasound, pressure
probe or mA-input for level measurement (2-wire level sen-
sor)
Power supply
-
1...2x rechargeable batteries 12 V / 15 Ah, VRLA-AGM
-
Battery charger 100...240 V AC / 50...60 Hz / 50 VA
Enclosure
-
Material: HPX high performance synthetic resin
-
Weight: approx. 4.7 kg (without batteries and hoop guards)
-
Protection: IP68 closed / IP67 open
Ex approvals/
other approvals
-
ATEX: TÜV 17 ATEX 196722 X
-
IECEx: TUN18.0008X
Operating temperature -15 °C…+50 °C
Storage temperature -15 °C…+70 °C
Max. humidity 90 %, non-condensing
Display Status LED (RGB)
Operation Solenoid switch;
via WLAN with display and operating module (smartphone,
tablet, notebook etc.)
Inputs
-
2x 0/4...20 mA (active/passive)
-
1x 0/4...20 mA (passive)
-
1x active digital input
-
1x socket for power adapter or alternative power supply
Outputs
-
1x analog output 0...10 V
-
1x potential-free digital output as SPDT / bistable
-
1x USB-A for readout of measurement values via USB stick
Storage cycle 5 sec. to 60 min., time-cyclic or event-based
Data memory Internal; 182,398 measurement cycles
Data transmission/
communication
-
via plug-in USB stick
-
via WLAN
-
option: via GPRS / UMTS / LTE
Table 2 Specifications
Sensors
Construction and description of the according sensors as well as the specifications can be
found in the according instruction manuals or technical descriptions.