Metal Water Level Sensor 45mm

Metal Liquid Water Level Sensor 45mm

Stainless Steel Float Mechanical Switch Boiler Container Reservoir Tank Pool Aquarium Pump Hydroponic 10W

     The Metal Water Level Sensor 45mm is a vertically mounted liquid level sensor with a stainless steel body and a stainless steel float. Its body length is 45mm; the M10 threaded body is passed through a 10mm hole in the tank or reservoir surface and fixed with nuts. As the liquid level rises and falls, the magnetic float moves on the body and triggers the reed switch inside the body; the sensor gives a dry contact, 2 wire output.

     The product will reach you as NC. However, if you change the direction of the float of the product, you can use it as NO. The maximum switching power is 10W, the maximum switching voltage is 100V DC and the maximum switching current is 0.5A (1A momentary). These values are not for driving a pump, indicator or alarm directly, but for triggering a low voltage relay coil or a control board input.

     This product is a sensor used to detect the liquid level. You cannot drive a motor pump by passing high current directly through this product. It is mandatory to add a relay or contactor type component in between. If the sensor is short circuited, it means the product has been damaged due to high current. It cannot be repaired. Light and highly reliable with its simple working principle, it detects whether tanks are full or empty in applications such as aquariums, hydroponic systems, salt water tanks, washing machines and dishwashers and filtration systems.

Key features:

     Stainless steel body and float: The body and float are 304 stainless steel; in water, salt water and hot water they are more durable than sensors with plastic floats.

     Selectable NO / NC: The product is shipped NC; when the retainer clip at the end of the body is removed and the float is fitted upside down, it works as NO. The same sensor can be used to detect both emptying and filling.

     Vertical M10 mounting: The M10 threaded body is passed through a 10mm hole drilled in the tank bottom or top and fixed leak tight with a gasket and nuts.

     Dry contact output: The reed switch gives a dry contact that needs no voltage; it connects directly to a low voltage (e.g. 12V or 24V DC) relay coil or a digital input of a control board.

     Short body: With its 45mm body length it is used in shallow tanks and small reservoirs; for deeper reservoirs, metal sensors with longer bodies are preferred.

Features:

• Product type: Stainless steel float liquid level sensor, vertical type
• Model: Metal Water Level Sensor 45mm
• Working principle: The magnetic float triggers the reed switch inside the body
• Output: Dry contact, SPST, 2 wire
• Contact state: Shipped as NC; NO when the float is turned upside down
• Maximum switching power: 10W
• Maximum switching voltage: 100V DC
• Maximum switching current: 0.5A (1A momentary); the product is damaged at high current
• Mounting type: Vertical (tank bottom or top)
• Connection: M10 threaded body, with nut and gasket
• Cable: White braided silicone cable
• Operating temperature: -30°C to +125°C
• Material: 304 stainless steel body and float
• Colour: Silver
• Mounting hole: 10mm
• Cable length: about 35cm
• Body length: 45mm
• Dimensions: 62mm x 28mm
• Weight: 37.5gr

Usage information:

• Pass the body through the 10mm hole in the tank surface; place the gasket so that it bears on the tank surface and tighten the nuts. The body must stand vertically and the float must move up and down freely.
• The contact comes as NC. If NO is needed, remove the retainer clip at the end of the body, turn the float upside down, refit it and put the retainer back in place.
• To drive a pump or valve, connect the sensor to the coil circuit of a low voltage relay; the pump is powered through the relay or contactor contact. When connecting to a control board, connect one wire to GND and the other to a digital input with a pull-up resistor.

Areas of use:

•  Water reservoir and tank level control
•  Aquarium water level monitoring
•  Hydroponic systems
•  Salt water tanks
•  Boilers and hot water tanks
•  Pool and pond level control
•  Pump control and dry run protection
•  Filtration systems
•  Washing machines and dishwashers
•  Greenhouse irrigation tanks
•  Overflow and empty tank alarm

Precautions:

•  You cannot drive a motor pump by passing high current directly through this product. It is mandatory to add a relay or contactor type component in between. If the sensor is short circuited, it means the product has been damaged due to high current. It cannot be repaired.
•  Do not exceed the 10W, 100V DC and 0.5A limits; do not switch 230V mains or a 230V contactor coil through the sensor. When driving a load such as a relay coil, connect a reverse diode across the coil; switching sparks wear the reed contact.
•  This sensor is for vertical mounting; if it is fitted horizontally on a side wall, the float does not move. For side wall mounting, use a horizontal type level sensor.
•  Regularly clean scale, sediment and algae that block the float movement; a stuck float reports the wrong level.

Package contents:

•  1 Piece Metal Water Level Sensor
•  Nut and gasket ( Assembled )
•  Note: Relay, contactor and pump are not included in the package.