Dishwasher Spray Arms Protected by Reed Sensors

Introduction

Most modern kitchens today have as an essential component – a dishwasher. Actually dishwashers if designed properly can be very power efficient and represent a healthier approach to washing dishes. One of the essential actions that takes place within the dishwasher is rotation of the spray arm. This generally sprays hot water/steam and/or hot air under high pressure to all the dishes. If a dish is improperly positioned in the washer blocking the rotation of the spray arm trouble will ensue. However, reed sensors have solved this commonly occurring problem…

Full Application Write Up

Dishwasher Spray Arm Detection - Reed Sensor

Features

Magnet and Reed Sensor are isolated and have no physical contact by typically having the magnet mounted to a rotating disk, and the Reed Sensors are mounted strategically to a PCB, such that the magnetic field of magnet will be sensed with each rotation of the disk.
The reed switch used in the Reed Sensors is hermetically sealed and is therefore not sensitive to its surrounding environment
The magnet is not affected by high and low temperature environments
Tens of millions of reliable operations
Surface mounting and through-hole mounting
Contacts dynamically tested

Series	Dimensions	mm	inches
MK15	W	2.5	0.098
	H	2.5	0.098
	L	19.50	0.768
MK16	W	2.3	0.091
	H	2.3	0.091
	L	15.60	0.614
MK17	W	2.1	0.083
	H	2.1	0.083
	L	9.61	0.378
MK22	W	2.7	0.106
	H	2.3	0.091
	L	15.60	0.614
MK23-35	W	2.2	0.087
	H	1.95	0.077
	L	15.75	0.620
MK23-66	W	2.2	0.087
	H	2.7	0.106
	L	19.60	0.772
MK23-87	W	2.0	0.079
	H	2.1	0.083
	L	15.60	0.614
MK23-80	W	2.0	0.079
	H	2.1	0.083
	L	13.0	0.512
MK24	W	2.2	0.086
	H	1.8	0.070
	L	5.5	0.216