Sensors International

Hall Effect Sensors
The sensor works by supplying a constant current to a semiconductor. Exposing the semiconductor to a magnetic field causes a voltage to be produced across the semiconductor.  A digital Hall Effect Sensor has a comparator connected to the output such that a change in output voltage does not occur until a certain minimum magnetic flux has been reached.

Click For more information on how

• Series SI-2000 - Hall Effect Gear Tooth Sensors - Documentation
• Series SI-1500 - Hall Effect Switch - Documentation
• Series SI-1000-10 - Hall Effect Zero Speed Sensors - Documentation
• Series SI-1000-20 - Hall Effect Zero Speed Sensors - Documentation

Series SI-2000: 4-20mA Output

Part #	Frequency
SI-2000-10	0-10 Hz
SI-2000-20	0-50 Hz
SI-2000-30	0-90 Hz
SI-2000-40	0-1500 Hz

Technical Specifications for All SI-2000 Series
Supply Voltage:	24 VDC
Supply Current:	35 mA Max
Airgap:	.050 in Max
Operating Temperature:	0-85C

Get the datasheet for the SI-2000 Series - Top

Technical Specifications For SI-1500 Series
Input Voltage, Vcc:	+4.5 to 24 VDC
Input Current, Icc:	10 mA MAX, Output Open
Output Signal, Isink:	25 mA MAX,
Output Saturation Voltage:	0.4V MAX
Operating Frequency:	0-12KHz
Output Signal:	Open Collector with 2.2K Ohm Internal Resistor
Target:	"S" Magnetic Pole with 180 Guass at Face
Operating Temperature Range:	-20ºC TO +150ºC
Vibration:	15G, 10-2000Hz
Dielectric Strength:	150 VRMS
Humidity:	95% RH with Condensation

Get the datasheet for the SI-1500 Series - Top

Technical Specifications For SI-1000 Series
Input Voltage:	Vcc: +4.5 to 30 VDC
Input Current:	Icc: 20 mA MAX
Output Signal:	Isink: 25 mA MAX
Logic Zero State:	400 mV of 20 mA Sink Current
Operating Frequency:	0-25KHz
Target Wheel:	Ferrous Gear
Airgap:	Per Graph
Operating Temperature Range:	-40ºC TO +125ºC
Duty Cycle:	20-80%
Operation:	Ferrous Target Present: Logic Low Ferrous Target Absent: Logic High

Get the datasheet for the SI-1000 Series - Top

Technical Specifications For SI-1000-20TB Series
Input Voltage, Vcc:	+4.5 to 24 VDC
Input Current, Icc:	20 mA MAX, 10 mA TYP
Output Signal, Isink:	15 mA MAX, Sinking
Viration:	15G, 10-2000Hz
Operating Frequency:	0-25KHz
Target Wheel:	Ferrous Gear
Airgap:	.020" MAX
Operating Temperature Range:	-20ºC TO +150ºC
Dielectric Strength:	150 VRMS
Operation:	Ferrous Target Present: Logic Low Ferrous Target Absent: Logic High

Get the datasheet for the SI-1000-20TB Series - Top