Reed Sensor
Reed sensor also called magnetic switch, reed sensor is application for position determination of pneumatic and / or hydraulic cylinder and piston pump. It also can be used as limit switch .When the magnetic object approaches, the reed closes and sends out switch signal through magnification. Compared with inductive sensor ,it has the following strong points: can be installed in metal closely and side by side and detect through metal object.Its detection distance subjects to the intensity of magnetic field of detected object.Reed sensor is not applicable in the occasion of severe vibration.
Features:
Model explanation of proximity switch
LM 18 30 05 N A □ / L
—— —— - —— —— —— —— —— ——
1 2 3 4 5 6 7 8
Switch category | Output form |
| N: Three-wire Dc NpN Output |
Outward appearance code | Output state |
| |
Working voltage | Subsidiart functions |
| T: with aviation connector |
Detection distance | Long-distance |
| L: Long-distance |
Working priciple Inductive proximity switch
Inductive proximity switch is composed of three parts:oscillator,switch circuit and magnified output circuit.The oscillator will generate an alternating electric field.When hemetal object approaches this electric field and reaches the induction distance, whirlpool will generate in metal object, resulting in attenuation of vibrati on and then stop.The changeof vibration and stop of oscillator is treated by begid stage magnified circuit and convertedto switching sign,triggering driving con-contact detection.
Current consumption of inductive proximity switch decreases proportional to the metal object distance.
Application illustration of proximity switch
1 . Spacing detection
2 . Various location detection of machinery process center
3 . Inspection of the exiating of milk inside the paper package
4 . Arm location detection of robot
5 . Bottle lid detection
To choose the perfect sensor type
Application VS. Technology Comparison | |||
Application | Not Recommended | Good | Best |
Detecting transparent of translucent | Ultrasonic | photoeletric | Capacitive |
Sensing transparent or translucent ovjects at long ranges(>25mm) | Capacitive | photoeletric | Ultrasonic |
Detecing objects or substance levels through non-metallic container walls | Ultrasonic | photoeletric | Capacitive |
Detecing liquid or granular material level in an open container(>25mm sensing range required) | Capacitive | photoeletric | Ultrasonic |
Sensing small targets at long ranges | Capacitive | ultrasonic | photoeletric |
Detecting targets at long ranges in dusty, dirty environments | Capacitive | photoeletric | Ultrasonic |
Sensing target shape details | Ultrasonic | capacitive | photoeletric |
Detecting targets close to backgrounds | Ultrasonic | capacitive | photoeletric |
Q1: what is the warranty for your product?
A1: We guaranteed for 2 years, any quality problem happened in this period
of time for our reason, we will send the replacement parts in next order.
We will compensate your loss if our quality problem caused your loss.
Q2: How soon can I get samples for test to check quality?
A2: We can provide 1-3pcs free samples. The lead time for our regular products
is 2-3 days. For customized products need 5-7 days. We will also customized
nice product to meet your requirement.
Q3: Can you accept OEM&ODM service business?
A3: Yes, we can.Our Month Supply Ability is 100000PCS.Our R&D team can
customize the special product as your needs. You can visit our website to learn
more about our excellent R & D team, and you will believe you can get
satisfied product.
Q4: Do you accept small quantity orders?
A4: Yes, we accept. But no doubt that the more the amount of your order, you
will get more discounts. If you have a regular monthly order volume, we also would
like to give you the appropriate discount.
Product Picture