K1 (lower limit alarm) and K2 (upper limit alarm) flow limit switches can give alarm signal at the minimum, maximum flow value or any flow value within the range. Installed on the dovetail guide of meter, the limit alarm will be activated when the float (with permanent magnet inside) reaches or exceeds the position of flow limit switches.Meanwhile, the internal contact point will turned on or off. Due to the new magnetic induction technology, the float is no longer severally used in monostable or bistable situations as in the past.
K1 lower limit alarm
When the magnetic float is at or lower than the set position of the limit switch, the contact point closes. When the magnetic float is higher than the set position of limit switch, the contact point opens.
K2 upper limit alarm
When the magnetic float is at or upper than the set position of limit switch, the contact point closes. When the magnetic float is lower than the set position of limit switch, the contact point opens.
Techniacl Parameters
- Insulation resistance> 109Ω
- LZS series main parts:Meter tube material AS,Float material ABS,Intubation tube or internal thread connection,material: PVC/nylon PA6/PA66.
- Working voltage: max.DC24V/AC24V,
- Working current: max.0.3A
- Working temperature: 0-55℃℃
- Protection Grade:IP65
- working pressure:<0.6MPa
- Hysteresis (on and off positions): 4mm
- Working temperature:0-60℃
- Constant current when switching on or off:max.DC 0.1A
- Accuracy: ±5%FS
- Interrupt power: max.1VA
- Overall dimensions:45*20*45mm
