LZM-25Z flowmeter with alarm switch philosophy
Switch on/ off is actually magnetic float contact open/ close after magnetron bistable exciting.Alarm sound and light are based on the switch position of on/ off linked to relays among other parts and elements.
Functions and Applications
BJ01: High Alarm Limit Switch (HA)
BJ02: Low Alarm Limit Switch(LA), Both the switches of BJ02 are to send relevant signals at maximum, middle and minimum flow.The switches are mounted on certain selected position of rail and whenever magnetic float reaches or passes the switch level, signals will be sent out for internal contact actuation of either opening or closing.
Precautions
Keep off from ambient magnetic disturbance during mounting e.g. large motors etc;
Flow media should be free from ferromagnetic foreign matters;
Ensure pipes or tubes to be mounted with the flowmeters free from any potential vibration in case switch contact actuates accidentally.
Technical Parameter
Rated Voltage: max DC24/AC24
Rated Amperage: max 0.3A
Steady Current at Switches Opening or Closing: max DC 0.1A
Interruption Capacity: ≤10W
Insulation Impedance: ＞ 10^9 Ω
Working Temperature: 0℃-+55℃
Protection Grading: IP65
Displacement(position on or off): ≤4mm
