| Task: | Program |
|---|---|
| Structure: | Closed-Loop |
| Mathematical Model: | Non-Linear |
| Signal: | Continuous |
| Function: | Automatic Control |
| Certification: | ISO: 9001, CE |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier It is very useful in water and waste water applications,be it water transfer ,tank filling ,tank emptying or even pressure boosting in Hydro-pneumatic applications.It comes in an ABS enclosure for weather-proof installation.it is suitable for Auto/Manual operation.
Parameter form| General details | |
| Model | L921 PLUS |
| Main technical data | |
| Start type | Direct on line |
| Qty of controlled pump | Single pump |
| Rated input voltage | AC220V-240V Single phase 50HZ/ 60HZ |
| Rated output power | 0. 37kw-2.2kw (0.5hp-3hp) 3kw-4kw (4hp-5.5hp) |
| Capacitor | Reserved space for installing stsrt capacitor |
| Protection function |
Over load protection
Pump stalled protection
Dry run protection with sensor free
Under voltage protection
Over voltage protection
Repeat start protection
Over temperature protection
|
| Application & Control characteristic |
Control and protect universal pump
Adopting 4-20mA transmitter,liquid probe, float switch or pressure switch to control pump start and stop
Applied for drainage by level control through 4-20mA level transmitter
Applied for booster by pressure control through 4-20mA pressure transmitter
Applied for water supply by liquid level control through float switch or liquid probe
Applied for booster by pressure control through pressure switch and pressure tank
Applied for drainage by liquid level control through float switch or liquid probe
Applied for sewage pump with piggy-back float switch
|
| Other features |
Pump last five faults record displaying
Pump accumulative running time displaying
Pump shaft anti-rust
Present one passive dry contact point (BA port)
Present RS485 port
Remote control panel(Optional)
Push button calibration
Memory function when power off & recovery
Signal transmission distance up to 1000m
Pump start time delay(Time settable)
Pump stop time delay(Time settable)
LCD screen displaying pump running status
LCD screen locked function under auto state (Settable)
Overflow alarm for drainage application
Connectable sensors
4-20mA transmitter / Liquid probe (standard accessory) / Float switch / Pressure switch
LCD screen displaying dynamic real time pump running status and information
Pump start and stop value can be easily set on the LCD screen (4-20mA transmitter)
|
| Main installation data | |
| Working temperature Working humidity Degree of protection Install position Unit dimension (L x W x H) |
-25ºC-- +55ºC 20%--90%RH, no drips concreted IP54 Wall mounting 310×220×120mm |
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}