Power-generating electromagnetic pickup 　GP Series

No power supply required
Self-power generation type Electromagnetic pickup

Power-generating type with built-in permanent magnet and detection coil.
The pickup is placed in close proximity to a rotating gear tooth tip, etc., and a frequency signal proportional to the rotation speed is extracted.
The sensor is integrally processed in a sealed structure with IP67 rating.

No power supply required Self-generating type, requiring no power supply.
High reliability Although the output voltage is in principle proportional to the detection frequency,
unnecessary voltage increase is suppressed to improve reliability.
High speed range Measurement When measuring only in the high speed range, practical operation is possible
even if the gap is increased.
No rotation adjustment required No need for angle adjustment during installation
IP67
Seamless tip and
Conical Press™		 Sensing surface is a hermetically sealed one-piece metal case for high reliability.
Conical Press™ cable pullout section for environments where water or oil may be present.
Unique cable withdrawal technology Conical Press™.
A: Pressure resin
B: Cable core wire
C: Cap
D: Cable outer jacket
E: Waterproof part
Direct cable connection No need for connectors, and high reliability
Customization support is available.　 Go to Customize page 　　Go to Sensor Customization Inquiry Page

Example of customization Specified connector mounting　
Easy replacement

Equipped with fixing flange　
No gap adjustment required

Easy installation		 Various other customizations are available.
Tip Shapes

Cable length

Connectoretc.
Please contact us.

Specifications

Name Power Generation Type Electromagnetic Pickup
Model GP12-50
GP12S-50 [with BNC connector]
 GP12-120
GP12S-120 [with BNC connector]
 GP16-50
DC resistance 2.1kΩ(TYP)
Impedance 2.8kΩ [f=1kHz, m =1 ,GAP=0.5mm](TYP)
Output voltage 2.0Vp-p [f=1kHz, GAP=0.5mm, m =1, RL=10kΩ](TYP)
0.5Vp-p [f=1kHz, GAP=1.0mm, m =1, RL=10kΩ](TYP)
2.4Vp-p [f=1kHz, GAP=0.5mm, m =1, RL= ∞Ω](TYP)
0.6Vp-p [f=1kHz, GAP=1.0mm, m =1, RL= ∞Ω](TYP)
f: Frequency GAP: Air gap (distance between tooth tip and sensor) m: Module (diameter/number of teeth)
Detectable frequency 220Hz - 50kHz　[GAP=0.5mm, m=1, RL=10kΩ, Output 0.5Vp-p min.]
Detection gear Module: m = 1 to 3/ Tooth width: 3 mm or more /Tooth type: involute /Material: Magnetic material [S45C carbon steel for machine structural use (JIS G4051), etc.]
Operating Temperature -20°C to +100°C 　[ -4°F to 212°F ]
Insulation resistance 50MΩ min. [between cable batch and case at 500V DC megger]
Withstanding voltage 500V AC 50/60Hz 1min between cable batch and case
Vibration resistance JIS C 60068-2-6 [former JIS C 0040]
[Vibration frequency range: 10 to 55Hz, double amplitude: 1.5mm, sweep time: 5 minutes, sweep frequency: 20 times in each X, Y and Z direction, total 60 times].
Shock resistance JIS C 60068-2-32 [former JIS C 0044] [Drop floor: concrete, drop height: 1 m, 2 times each].
Magnet polarity N-pole
Output power generation polarity Positive output to OUTPUT (+) when a magnetic object approaches the sensor tip
[Lead wire] (red): (+) / (white): (-)　　[ BNC connector] Outputs positive to the center contact
Weight*1 GP12-50 : Approx. 100g
GP12S-50: Approx. 115g		 GP12-120: Approx. 135g
GP12S-120: Approx. 150g		 Approx. 135g
Dimensions M12×L:58mm [M12, 1mm pitch] M12×L:130mm [M12・1mm pitch] M16×L:58mm [M16・1mm pitch]
Case material Brass (Nickel plating)
Cable 2m PVC 2-core shielded cable
Accessories 2 nuts, 1 toothed washer
Protection class IP67
*1 Included in the weight: Main unit, 2 nuts, 1 toothed washer, cable
Specifications are subject to change without notice.
Dimensions
GP12-50
Pigtail cable, Standard version
M12 P=1　 Mounting nuts,
Washer with the toothed		 Cable  

Red　OUTPUT +
White　OUTPUT -
Shield, isolated from the main body

GP12S-50
Cable with BNC connector

BNC connector Female
Center contact +
Shield, isolated from the main body

GP12-120
Pigtail cable, Standard version
M12 P=1　 Mounting nuts,
Washer with the toothed		 Cable  

Red　OUTPUT +
White　OUTPUT -
Shield, isolated from the main body

GP12S-120
Cable with BNC connector

BNC connector Female
Center contact +
Shield, isolated from the main body

GP16-50
Pigtail cable, Standard version
M16 P=1　 Mounting nuts,
Washer with the toothed		 Cable  

Red　OUTPUT +
White　OUTPUT -
Shield, isolated from the main body

Option
Extesion cable　

Sensor　connector type Extension cable Pin assignment
Total length 1.5m

GP12S-50 / GP12S-120


BNC female
CSS-BB （BNC to BNC cable） a　BNC HOT
b　BNC GND
BNC male   BNC male
CSS-BC （BNC to clip cable） Red　SIG
Black　Shield
BNC male   Alligator clip
CSS-AB （BNC to bare crimp terminal cable） Red　SIG
Black　Shield
BNC male   Bare crimp terminal 1.25Y-3
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