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Frequently Asked Questions about:
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Sensors
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- Discs and Wraps -
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Retired Products
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Other FAQ's
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What tools will I need when installing an end-of-shaft mounted pulser disc?
Can I bore out my magnet disc? How much?
The end of the shaft I want to monitor is not available to get at. What other options do I have for mounting a magnetic target?
What materials can I have my pulser wrap manufactured out of?
What information do I need to specify a pulser wrap?
What is the maximum number of magnets I can fit on a pulser wrap?
What value pull-up resistor should I use with an ESI sensor?
What tools will I need when installing an end-of-shaft mounted pulser disc?
A No. 21 drill bit, drilled to a depth of .5", and a tap for a 10/32 UNF screw. Back to Top
Can I bore out my magnet disc? How much?
The standard #255 nylon pulser disc can be bored up to ½" diameter. For larger bore requirements or other pulser discs, please contact the factory.
The end of the shaft I want to monitor is not available to get at. What other options do I have for mounting a magnetic target?
A custom manufactured Pulser wrap that clamps around the shaft that you want to monitor.
What materials can I have my pulser wrap manufactured out of?
PVC, Aluminum, and Stainless Steel.
What information do I need to specify a pulser wrap?
Exact shaft diameter
Maximum RPM of the shaft
Maximum temperature the wrap will encounter
Any corrosive chemicals or solvents present
Any space restrictions.
What is the maximum number of magnets I can fit on a pulser wrap?
The standard number of magnets on all Electro-Sensors' pulser wraps is 16. However, depending on the outside diameter of a pulser wrap, more magnets may be able to be added. See the following equations or consult the factory for more details.
For 1/2" magnets:
Max # of magnets = (Wrap OD - .5)*3.14/.65
For 1/4" magnets:
Max # of magnets = (Wrap OD - .5)*3.14/.35
Where OD = Outside Diameter
Please Note: an even # of magnets is always needed
How many pulses per revolution does my sensor/disc give?
With a standard Electro-Sensors Hall-Effect Sensor, you will get 1 pulse for every 2 magnets (made with magnets alternating in polarity). With an Electro-Sensors MagnetoResistive Sensor, you will get 1 pulse for every 1 magnet. Our standard #255 pulser disc has 16 magnets alternating in polarity.
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6111 Blue Circle Drive
Minnetonka, MN 55343
1-800-328-6170
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