Instruction Manual
NivuFlow Stick
Page 18
NivuFlow Stick - rev. 00 / 27.01.2020
17 Specifications
Measurement principle
-
Ultrasonic cross correlation with real flow profile measure-
ment (flow velocity)
-
Hydrostatic (depth measurement relative to atmospheric
pressure)
Power supply
-
8x rechargeable batteries, customary, nominal voltage 1.2 V
or
-
8x standard batteries Type AA, customary, nominal voltage
1.5 V
Battery life
12 hrs. with continuous operation (if powered with 2,650 mAh
batteries)
Enclosure
Degree of protection: IP67 (closed)
Weight
approx. 4.1 kg
Operating temperature
-20…+70 °C
Storage temperature
-30…+70 °C
Handling
On/Off switch; via WLAN with customer display and operating
module (smartphone, tablet, notebook etc.)
Flow velocity measurement
Measurement range: -1…+6 m/s
Resolution: 0.001 m/s
Accuracy: 1 %
Depth measurement
Resolution: 1 mm
Accuracy: < 0.5 % of final value
Temperature measurement
Resolution: 0,1 °C
Accuracy: 0.1 °C
Acoustic frequency
1…3 MHz
Depth of medium
Minimum 30 mm (above the sensor)
Data storage
1,400 discharge measurements
Data transfer/communication via WLAN
Sensor
CSM flow velocity wedge sensor with pressure measurement
Table 2
Specifications
Sensor
Construction and description of the respective sensor as well as its specifications can be
found in the “Technical Instructions for Correlation Sensors and external Electronic Box”.
The technical description is available as download from
18 Configuration / Device Types
The cross correlation version of the mobile flow measurement system is manufactured with a
CSM flow velocity wedge sensor with pressure measurement.
NFS002
NivuFlow Stick; mobile measurement system for discharge measurement in flow-
ing waters
Accessories see Sect. “44 Accessories”.