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middle of the scale. If no deflection is observed, 
reverse the meter leads and try again. If no 
deflection is observed, check any junction box 
wiring between the sense head and the speed sensor 
board. If no open wires or wiring errors are found,  
verify that the mark passes parallel to the face of the 
sense head, and passes within 3/4" of the sense 
head. If the mark path appears to be correct, replace 
the sense head. 

If more than a single mark is used, verify that the 

meter deflects each time a mark passes the sense 
head. If the ohmmeter shows meter deflection with 
some but not all marks, replace any mark that does 
not cause the meter to deflect. 

7.1.3  Problem - The speed sensor appears to 
operate but the sensor does not operate the 
alarm or shutdown circuit (that is, you were able 

to see the lamp operate, and could set the speed 
dial as described above): 

Check the alarm or shutdown circuitry, and be 

sure that the speed sensor relay is properly and fully 
inserted in its socket. If the circuitry appears to be 
correct, bypass the relay by shorting the appropriate 
terminals at TB1 or TB2. If the machinery then 
operates normally, the speed sensor board or relay 
may be defective and may need replacement. 

7.2 

Field Service 

A field service engineer is available upon request 

to aid in installation, startup, and instruction of 
maintenance under the standard Badger Magnetics 
field rates. At least 5 working days notice is 
required to get an engineer to a site in the 
continental U. S. or Canada. 

8.0 WARRANTY

“No item may be returned to the factory without 

an RGR (Returned Goods Request) number, which 
must be obtained from the factory. Items returned 
(freight prepaid) within one year from date of sale 
that Badger Magnetics determines to be faulty by 
reason of defective materials or workmanship will 

be repaired or replaced, at our discretion, free of 
charge.  Items that show evidence of mishandling or 
misapplication may be returned by Badger 
Magnetics at customer's expense.  No other 
warranties are intended or implied.” 

9.0 SPARE PARTS

None Required.  

10.0 FIELD REPAIR

With the exception of the fuse and relay on the 

speed sensor board, there are no user-serviceable 
parts on any part of the system.  All items for repair 
should be returned to the factory. Call us for a 
return goods number and further instructions. 

 
 
 
 
 

11.0 CONTACT US

Badger Magnetics, Inc. 

 

Address: 

Phone:

 

501 Apollo Drive 

(651) 784-8888

 

Lino Lakes, MN  55014 

Website:

 

 

badgermagnetics.com

 

 

Summary of Contents for 250

Page 1: ...between mark passes exceeds the set point the rotating machine is running too slow the relay on the speed sensor board will de energize operating the alarm or shutdown circuit With the speed sensor b...

Page 2: ...ed applications 60 PPM and under and one for high speed applications greater than 60 PPM 3 0 APPLICATION INFORMATION 3 1 Speed Range The model 250 senses three speed ranges from 15 to 3600 PPM with a...

Page 3: ...ley divide by the number of marks and scribe a line on the circumference at that measurement Then scribe a line from that measurement to the center of the shaft Mount the second mark at the intersecti...

Page 4: ...a relatively vibration free location and must be accessible for adjustments The mounting location should also be protected from mechanical damage 5 0 ELECTRICAL INSTALLATION Connect the sense head wi...

Page 5: ...Preliminary circuit tests If all connections are made as shown on the connection diagram above the system should be ready for power To ensure proper wiring perform a visual inspection and ring out be...

Page 6: ...nery and leave the sensor energized carefully either disconnect the red lead coming from the sense head from the terminal board on the speed sensor or short the white and red sense head leads at the s...

Page 7: ...ates normally the speed sensor board or relay may be defective and may need replacement 7 2 Field Service A field service engineer is available upon request to aid in installation startup and instruct...

Page 8: ...COL R un Te st 25 20 5 10 Mag Con Engineering 15 Startup Delay Model 250 Speed Sensor OVER UNDER 60 300 PPM 15 60 PPM 300 3600 PPM 10 0 20 30 90 100 70 80 40 50 7 60 6 5 4 F1 1 4A TB2 3 2 1 3 2 1 TB1...

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