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FW Murphy Magnetic Pickup Models: MP3298, MP7905, and MP7906
Murphy MP series magnetic pickups

 

MP series Magnetic Pickup Speed Transducers
转速传感器

 


Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before mounting. These instructions are intended for MP3298, MP7905, and MP7906 models.


MP series magnetic pickups PDF Catalog

 

Description

A magnetic pickup is an AC generator. It is normally installed into the flywheel housing of an internal combustion engine, so that the starter ring gear acts upon it to generate a voltage pulse each time a gear tooth passes the end of the sensor.

MP3298 Magnetic Pickup (20700162) MP7905 Magnetic Pickup (20700160) MP7906 Magnetic Pickup (20700161)

Magnetic Pickups Available mag pickup models:MP3298 MP7906 MP7905
Specifications

Housing Material:
MP3298: Type 300 Stainless Steel.
Locknut: Type 300 Stainless Steel.
MP7905 and MP7906: Type 6061 Aluminum/Anodize Class 1.
Locknut: Steel Nickel Plated.
Output Leads (all models): Two insulated leads, 20AWG, STR/TEF
insulated per MIL-W-16878D Type E, 1 White and 1 Black.
200 V.P.P. TYP. (tested at 1000 I.P.S.
20 Pitch gear, 0.005 Gap., and 100K OHM Load).
Coil Resistance:
MP3298: 975 Ohms TYP.
MP7905 and MP7906: 2500 Ohms TYP.
Potting (all models): Internal portion of pickup is filled with epoxy resin,
making the magnetic pickup oil and moist resistant.
Coil Induct.:
MP3298: 800 mH max, @ 1K Hz.
MP3298: 400 mH TYP. @ 1K Hz.

Pickup Part
Model Number Length Size
MP3298 20700162 3 in. (76 mm) 3 in. (76 mm) 5/8-18 UNF
MP7906 20700161 3 in. (76 mm) 3 in. (76 mm) 3/4-16 UNF
MP7905 20700160 4-1/2 in. (114 mm) 4-1/2 in. (114 mm) 3/4-16 UNF
BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT

A. MP3298 and MP7906= 3 in. (76 mm)
MP7905= 4.5 in. (114 mm)

B. MP3298= 5/8-18 UNF-2A
MP7905 and MP7906= 3/4-16 UNF-2A

C. MP3298= 0.250 in. (6 mm)
MP7905 and MP7906= 0.370 in. (9 mm)

 

A magnetic pickup is an AC generator. It is normally installed into the flywheel?housing of an internal combustion engine, so that the starter ring?gear acts upon it to generate a voltage pulse each time a gear tooth passes?the end of the sensor.

Pickup Model
Part Number
Total Length
Threaded Length
Thread Size
MP3298 20700162 3 in. (76 mm) 3 in. (76 mm) 5/8-18 UNF
MP7906 20700161 3 in. (76 mm) 3 in. (76 mm) 3/4-16 UNF
MP7905 20700160 4-1/2 in. (114 mm) 4-1/2 in. (114 mm) 3/4-16 UNF

Mag pickups Magnetic Pickups
MP series magnetic pickups
Magnetic Pickups
Mag pickups
Available mag pickup models:

MP3298
MP7906
MP7905


A magnetic pickup is an AC generator. It is normally installed into the flywheel housing of an internal combustion engine, so that the starter ring gear acts upon it to generate a voltage pulse each time a gear tooth passes the end of the sensor.

Pickup Model Part Number Total Length Threaded Length Thread Size
MP3298 20700162 3 in. (76 mm) 3 in. (76 mm) 5/8-18 UNF
MP7906 20700161 3 in. (76 mm) 3 in. (76 mm) 3/4-16 UNF
MP7905 20700160 4-1/2 in. (114 mm) 4-1/2 in. (114 mm) 3/4-16 UNF

MP3298 Mag pickups Magnetic Pickups | MP7906 Mag pickups Magnetic Pickups | MP7905 Mag pickups Magnetic Pickups

  • Housing Material :
    • MP3298 : Type 300 Stainless Steel.
      • Locknut : Type 300 Stainless Steel.
    • MP7905 and MP7906 : Type 6061 Aluminum/Anodize Class 1.
      • Locknut : Steel Nickel Plated.
  • Output Leads (all models) : Two insulated leads, 20AWG, STR/TEF insulated per MIL-W-16878D Type E, 1 White and 1 Black.
  • Output Voltage (all models) : 200 V.P.P. TYP. (tested at 1000 I.P.S. 20 Pitch gear, 0.005 Gap., and 100K OHM Load).
  • Coil Resistance :
    • MP3298 : 975 Ohms TYP.
    • MP7905 and MP7906 : 2500 Ohms TYP.
  • Potting (all models) : Internal portion of pickup is filled with epoxy resin, making the magnetic pickup oil and moist resistant.
  • Temperature (all models) : -65° to +225°F (-54 ° to 107°C).
  • Coil Induct .:
    • MP3298 : 800 mH max, @ 1K Hz.
    • MP3298 : 400 mH TYP. @ 1K Hz.

A magnetic pickup i s an AC generator. It is normally installed into the flywheel housing of an internal combustion engine, so that the starter ring gear acts upon it to generate a voltage pulse each time a gear tooth passes the end of the sensor.

 

MP Series Magnetic Pickups (Speed / Time Sensors & Instruments)

Available mag pickup models:

  • MP3298
  • MP7906
  • MP7905
MP3290.jpg

A magnetic pickup is an AC generator. It is normally installed into the flywheel housing of an internal combustion engine so that the starter ring gear acts upon it to generate a voltage pulse each time a gear tooth passes the end of the sensor.

Pickup Model Part Number Total Length Threaded Length Thread Size
MP3298 20700162 3 in. (76 mm) 3 in. (76 mm) 5/8-18 UNF
MP7906 20700161 3 in. (76 mm) 3 in. (76 mm) 3/4-16 UNF
MP7905 20700160 4-1/2 in. (114 mm) 4-1/2 in. (114 mm) 3/4-16 UNF

Specifications

Housing Material :

  • MP3298 : Type 300 Stainless Steel.
    • Locknut : Type 300 Stainless Steel.
  • MP7905 and MP7906 : Type 6061 Aluminum/Anodize Class 1.
    • Locknut : Steel Nickel Plated.
  • Output Leads (all models): Two insulated leads, 20AWG, STR/TEF insulated per MIL-W-16878D Type E, 1 White and 1 Black.
  • Output Voltage (all models): 200 V.P.P. TYP. (tested at 1000 I.P.S. 20 Pitch gear, 0.005 Gap., and 100K OHM Load).
  • Coil Resistance:
  • MP3298 : 975 Ohms TYP.
  • MP7905 and MP7906 : 2500 Ohms TYP.
  • Potting (all models): Internal portion of pickup is filled with epoxy resin, making the magnetic pickup oil and moist resistant.
  • Temperature (all models): -65° to +225°F (-54 ° to 107°C).
  • Coil Induct.:

MP3298 : 800 mH max, @ 1K Hz.
MP3298 : 400 mH TYP. @ 1K Hz.

For more information about this product, you can download the related literature here:



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