UWT Nivobob NB 3000 User Manual

Continuous level measuring system
NB 3000
Technical information / Instruction manual
page
Technical data
Electrical data
Power supply AC version 98 .. 253 V 50 - 60 Hz
DC version 20 .. 28 V
(voltages incl. 10% of EN 61010)
Installed load AC version: 150 VA (including internal heater (80 W))
DC version:
One unit: 150 W (with or without internal heater) *
Further units which are connected to the same power supply:
25 W per unit (without internal heater, motor off) **
50 W per unit (without internal heater, motor running)
80 W per unit (with internal heater, supply voltage 20 V DC)
100 W per unit (with internal heater, supply voltage 24 V DC)
120W per unit (with internal heater, supply voltage 28 V DC)
* Considers the max. motor traction which is needed in a failure condition. A failure condition is
assumed for max. one unit at the same time.
** This value can be considered, if the controlling PLC starts the measurement for max. one unit at
the same time.
Signal output:
0/4-20 mA
Max. 500 Ohms (active, isolated) Linearity ±0.1 mA
Signal output:
Relay
4x Relay SPST:
max. 250 V AC, 2 A, 500 VA non inductive
Signal output:
Electronic counting pulse
Optocoupler
max. 30 V DC, max. 25 mA
Communication:
Modbus RTU
Physical layer: RS 485 and Ground, isolated
Mode: RTU, Type: Slave
Device number range: 1 - 247 (selectable in menu), Baudrate: 1,200 to 57,600 Baud, Data bits: 8,
Stop Bits: 1
Parity: None
Multi-drop conguration possible. Factory setting of adress is 31. Each unit which is connected to
the network must be set to an individual adress.
Supported commands
Reading: All diagnostics and parameters using command 03
HEX
: Read Holding Register
Writing: All parameters using command 06
HEX
: Write Single Register (not supported is command
10
HEX
: Write Multiple Register).
Communication:
Probus DP
Physical layer: RS 485, isolated
Type: Slave
Device number range: 0 - 126 (selectable in menue), Baudrate: 9.6 kbps to 12 Mbps
Available communication by GSD le, Read only (Sensor weight bottom to material (in mm))
Accuracy of measurement
Output Setting Accuracy
Counting pulse 10 cm (1/3 ft)/ pulse 1 pulse
5 cm (1/6 ft)/ pulse 1 pulse
2,5 cm (1/10 ft)/ pulse 2 pulses
1 cm (1/20 ft)/ pulse 4 pulses
0/4-20 mA 1% of max. range
Modbus RTU/
Probus
0.5% of max. range
Display LCD display: 2 line x 16 digit
Indication light Status by build in LED: Power On, Relais, Maintenance and Failure
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UWT Nivobob NB 3000 Specifications

General

Brand	UWT
Model	Nivobob NB 3000
Category	Measuring Instruments
Language	English