Name: ELF3 Series IP65 Auto-adaptable Water Shortage Test Timing Function Wide Frequency Pressure Controller
Brand: Taizhou Edwin Electric Co., Ltd.

Description :

The ELF3 Series IP65 Auto-adaptable Water Shortage Test Timing Function Wide Frequency Pressure Controller is a sophisticated device designed to control and optimize the operation of water pumps in various applications.

Key features :

1. Do not need to set the pressure manually, can insert the pump and use.
2.The water pump can adjust the starting pressure intelligently.
3.Smart superposition of pipe pressure.
4.Theinstallation is not limited by the height of the floor(can be used in 0-100m height, self-priming pump, jet pump, centrifugal pump.Deep-well pump and other supporting applications).
5.Delayed water absorption.
6.Water shortage protection function.
7.TAP water automatic start function.
8. Lightning protection.
9.The material can withstand 130 ℃ of high temperature.
10.Pressure tank can eliminate the impact of water hammer, extend pump life.
11.Manual mode : It can manually adjust the start-up pressure,but also to prevent pipe leakage caused by frequent start.
12.Wide voltage : 90~260V can be used,50Hz/60Hz.
13.Timing function : according to customer needs to set the pump cyclestart-up time to meet the water tower make-up application.

Applications :

Robust compatibility with an array of pump models. This includes submersible deep well pumps for automated priming and accurate monitoring of the pump's maximum pressure, followed by autonomous configuration of this as the "Initiating" pressure at a designated percentage above the peak pressure. No need for manual initiation pressure adjustment within Auto Mode.

Operating Principle :

Once activated by encountering a pressure level less than the predetermined start pressure, or via a triggered flow switch opening, the pump operates independently. It facilitates an automated priming phase lasting approximately three and a half minutes, effectively enabling efficient initialisation of the unit. (Customised priming durations are available prior to delivery.)

On concluding its designated duty cycle, the pump ceases operation automatically on detecting the closed flow switch. In situations with restricted water availability, the pump operates uninterruptedly for a similar duration before auto-shutdown. The start pressure can be conveniently adjusted using the +/- buttons, accommodating varying operating conditions.

Product technical parameters :

Max.power : 0.1~2.2 kW
Voltage : 100V-240V
Max.Current : 30A
Medium temperature : 0~80°C
Max.pressure : 10bar
Protection Grade : lP65
Application of lift : 0~100m
Frequency : 50/60Hz
Interface thread : 1"

Vs traditional pump :

Technical Data :

Model	Power kw	Voltage V	Max.Current A	Frequency Hz	Pcs/Carton	Outer box size (mm)1pcs	Outer box size (mm)12pcs
ELF3-S	0.1-2.2	100-240	30	50/60	12	192×140×90	435×400×200
ELF3-SP	0.1-2.2	100-240	30	50/60	12	192×140×90	435×400×200
ELF3-ST	0.1-2.2	100-240	30	50/60	12	192×140×90	435×400×200
ELF3-STP	0.1-2.2	100-240	30	50/60	12	192×140×90	435×400×200