Digital Output Hall Effect Sensors |
Phone: 727-623-0894 Send Email |
 Related Links Applications
Specifications Digital Output Hall Effect Sensor Type 3 wire, sinking signal (NPN) Supply Voltage Range 3.6-24 VDC Supply Current 3.5 mA Output Voltage 3.6-24 VDC (Corresponds with Supply Voltage used) Output Current Output capable of sinking 25 mA Magnetic Pole Detect North and South (Positive and Negative field) Gap 1/8" to 1/2" (determined by magnetic field strength on target) Frequency 25 kHz Maximum Sensor Housing Material Aluminum Delrin for corrosive environments See the Hall Effect Sensor Selection Guide for part numbers and corresponding specifications. Digital Output Hall Effect Sensor Wiring  Digital Output Hall Effect Sensor Mounted in Optional TSA Box  |
Features and Benefits
Overview Phares Electronics Digital Output Hall Effect Sensors are simple on/off non-contact switching devices. Digital output signal is clean, fast and switched without bounce – an inherent problem with mechanical contact switches. They are magnetically activated switches that detect the motion, position, or change in field strength of an electromagnet, a permanent magnet, or a ferromagnetic material with an applied magnetic bias. The digital output is a square-wave signal that is directly proportional to the input (linear). The digital output signal is ideal for logic inputs (PLC/DCS) and other devices that can measure frequency directly. This includes our Tachometers and Remote Zero Speed Switch. A pull up resistor may or may not be needed depending on the logic input or device. Our Hall Effect Sensors are compatible with all digital families. They provide reliable, repetitive operation in close tolerance applications. They are more efficient and effective than inductive or optoelectronic sensors as they are virtually immune to environmental contaminants and are suitable for use under severe service conditions. Our Hall Effect Sensors can see precisely through dirt and darkness. Description The Phares Electronics Digital Output Hall Effect Sensor switches logic low ("0") when the magnetic field strength at the sensor face exceeds the hall effect operate point threshold, and switches logic high ("1") when the magnetic field strength falls below release point threshold. The difference in the magnetic operate and release points is the hysteresis of the Hall Effect Sensor. This built-in hysteresis allows clean, fast switching of the output, even in the presence of external mechanical vibration and electrical noise. The omnipolar operation allows activation with either a north or a south polarity field of sufficient strength. In the absence of a magnetic field, the output is off. Installation The Phares Electronics Digital Output Hall Effect Sensor can be secured via ½" conduit fitting, bracket, or both depending on sensor housing length. Various sensor housing lengths allow greater flexibility regarding mounting and bracket location. Use our Terminal Strip Assembly (TSA) Box for quick mounting and termination, and applications that require long cable runs. When using a bracket do not over tighten jam nuts. If vibration is an issue, use removable thread lock to keep jam nuts secure. |