M921 can apply to automatic liquid -level/pressure control and protection of stainless steel / cast iron deep -well, submersible pump, pipeline pump, protection functions include: Dry running, over voltage, under voltage, over current, open phase etc.
Applied for AC100-250V/50Hz(60Hz), single phase, 0.37-2.2KW stainless steel / cast iron deep -well, submersible pump, pipeline pump,
Its special layout makes it possible to realize the sensitive and reliable stopping protection against pump dry -running without installing lower water tank (well|) probe.
Features:
. Applied for water supply and drainage
. Computer main board and module for industrial & civil pump
. Auto / Manual switch
. Automatic Stops the pump in the case of water shortage, protecting it from dry running without installing sensors in the well
. Automatic protection and automatic alarm against over-current
. Under Voltage & Over Voltage protection (M921)
. Digital voltmeter/ampere meter real-time display
. Light alarm signals of malfunction
. Starts and stops the pump in accordance with the different liquid level or pressure
. Pump accumulative running time displaying
. Present liquid-level sensor
. User-friendly connection diagrams
. Integrated design, small size, easy to install
. Reserved space for installing internal start capacitance of pump motor
Hunan Leading Science & Technology Development Co., Ltd is the professional manufacturer of intelligent pump control system applied for monitoring and protecting of pumps in home and industry use;
Leading Science & Technology has always been a leader in the production, research & development of intelligent pump control system and relative pump control products. Million of our prime products have been sold on the market for stable quality and reasonable price.
Leading Science & Technology has established stable relations with many pump producers and distributors from China and overseas.
Till now, Leading Science & Technology we have passed CE, ISO9001: 2008 certificate.
