Dosistar NT-LVP

The Dosistar NT-LVP is a device for controlling high-power DC pumps. Combined with high performance pumps dosing systems with high flow rates can be realised.

The device regulates the flow rate to a constant value set by the user. The Dosistar NT-LVP is adaptable to a wide variety of flow meter, e.g. flow meter turbines and ultrasonic sensors.

Together with the impulse input for the flow meter the device also has multiple configurable digital inputs for use with e.g. level indicators or manually triggered remote pause buttons.

Specifically, for the use with corn mills, the Dosistar NT-LVP has a 4-20mA input for an analogue scale. This allows conveyance mass dependant dosing. The dosed amount of liquid is automatically adjusted to the current conveyor load.

Next to the inputs the device also has several configurable digital auxiliary outputs in the form of potential free relays. They can be used for switching periphery devices like warning lamps or shut-off valves.

Like with all Dosistar models the Dosistar NT-LVP has the two dosing modes, flow regulation and charge dosing. During flow regulation a liquid is continuously dosed, flow rate and amount are logged and displayed. The dosing only ends if the user manually stops it. During charge dosing the dosing process automatically stops once a predetermined amount has been pumped.

Of course, the proven warning and alarm functions to protect against under-dosing and dry-running are also integrated in the Dosistar NT-LVP. Additionally, the pump can be protected against overload through an adjustable current limit. Next to the functions for protecting the pump, the Dosistar NT-LVP also has self-protection functions, over current warning, short circuit protection and temperature monitoring to prevent overheating of the device.

Technical Data

Supply voltage Vcc 10V – 30V
Output

0…Vcc

Inom= 180 A

Ipeak= 200 A (limited thermally)

Auxiliary outputs

Alarm relay

Transport relay

optional reserve relay

max. 250 V, 5 A each

Inputs

Impulse input for flow meter

3 configurable digital inputs

1 optional analogue input

input for a 4-20 mA signal from a scale

Sensor supply

12 V, 500 mA total

24 V, 250 mA total (optional)

Protection class IP 68
Dimensions 262 x 226 x 145 mm
Weight 7700 g