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Help CenterVFD Constant Pressure Water Supply Frequency Converter Single Phase 220 V Output Variable-frequency Drive Inverter for Water Pump
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Shenzhen Danfulai Science and Technology Co., Ltd. is a professional manufacturer engaged in R&D and production of motor drives and automation systems. Founded in 2007, it is located in Shenzhen where reform and opening up are carried out in China. The Company has been dedicating to R&D and production of special frequency converters and general ones as well as servo drives and step actuator in automation segment.
The special frequency converter of DFL3000M (220V) and DFL4000M (380V) backpack type constant pressure water supply integrated machines is a special frequency converter for water supply, which can be directly installed on the back of the pump; with the functions of constant pressure controller and general frequency converter. The product has characteristics of simple installation and maintenance, convenient operation for users, intelligently constant pressure, good waterproof performance and beautiful appearance;
As a special frequency converter for water supply, the special frequency converter of DFL200N-HYGS (220V) and DFL4000H-HYGS (380V) wall-mounted and general type constant-pressure water supply integrated machine shall be installed in the electric control box or vertically on the wall.
Features of our special frequency converter of constant pressure water supply: the first two digital tubes on the main interface are used to display the setting pressure directly, and the last two digital tubes are used to display the actual pipeline pressure; the target pressure can be changed by pressing the up and down keys on the panel. And the remote transmission pressure gauge, 4-20mA pressure transmitter and 0.5-4.5V pressure sensor can be supported.
Comprehensive technical indicators for special frequency converter of DFL constant pressure water supply
1. Input and output characteristics
Input voltage range: 220V±20% or 380±20%
Output voltage range: 0 ~ rated input voltage
Output frequency range: 0 ~ 50/60HZ
2. Peripheral interface features
6-way isolated external signal digital input: X1-X4, FWD, REV
0-5V remote transmission pressure gauge interface: pointer type remote transmission pressure gauge can be connected directly.
4-20mA pressure transmitter interface: 4-20mA pressure transmitter of two-wire system or three-wire system can be supported.
Relay output: 1-way multi-function relay signal output
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