A generator type incorporating a permanent magnet and a detection coil.
When placed close to gear teeth or similar targets, it outputs a frequency signal proportional to rotational speed.
The sensor features a monolithic sealed structure with IP67 protection rating.
Self-generating type, no external power source is required.
The output voltage is, in principle, proportional to the detection frequency,
but unnecessary voltage rise is suppressed to enhance reliability.
Even with a large gap, practical operation is possible when measuring only at high speeds.
Detection surface: Sealed one-piece metal housing
Cable: Original lead-out technology Conical PressTM
Sensor Detection Surface / Conical PressTM
No connector required, ensuring high reliability.
| Name | Power-generating electromagnetic pickup | ||
| Model | GP12-50 GP12S-50 [With Connector] |
GP12-120 GP12S-120 [With Connector] |
GP16-50 |
| DC Resistance | 2.1kΩ(TYP) | ||
| Impedance | 2.8kΩ [f=1kHz, m1 ,GAP0.5mm](TYP) | ||
| Output Voltage | 2.0Vp-p [f=1kHz, GAP0.5mm, m1, RL10kΩ](TYP) 0.5Vp-p [f=1kHz, GAP1.0mm, m1, RL10kΩ](TYP) 2.4Vp-p [f=1kHz, GAP0.5mm, m1, RL∞Ω](TYP) 0.6Vp-p [f=1kHz, GAP1.0mm, m1, RL∞Ω](TYP) f: Frequency / GAP: Distance between gear tip and sensor / m: Module |
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| Detectable Frequency | 220Hz - 50kHz [GAP 0.5mm, m1, RL10kΩ, output ≧ 0.5Vp-p] | ||
| Detectable Gear | Module m=1-3, tooth width ≧3mm, involute tooth form, material: ferromagnetic (e.g., S45C carbon steel, JIS G4051) | ||
| Operating Temperature | -20℃ - +100℃ | ||
| Insulation Resistance | ≧ 50 MΩ (between cable bundle and case at DC 500 V Megger) | ||
| Withstand Voltage | AC 500 V, 50/60 Hz, 1 min between cable bundle and case | ||
| Vibration Resistance | JIS C 0040 [Frequency range 10-55 Hz, double amplitude 1.5 mm, sweep time 5 min, 20 sweeps per X, Y, Z axis, total 60 sweeps] | ||
| Shock Resistance | JIS C 0044 [Drop onto concrete floor, 1 m height, 2 times per test] | ||
| Magnet Polarity | North Pole | ||
| Output Polarity | When a magnetic material approaches the sensor tip, a positive voltage appears at OUTPUT(+); lead wires (red:+ / white:-); the BNC connector outputs positive voltage at the center contact. |
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| Mass*1 | Approx. 100g：GP12-50 Approx. 115g：GP12S-50 |
Approx. 135g：GP12-120 Approx. 150g：GP12S-120 |
Approx. 135g |
| Dimensions | M12xL58 [P= 1mm] |
M12xL130 [P= 1mm] |
M16xL58 [P= 1mm] |
| Case Material | Brass (nickel-plated) | ||
| Cable(PVC) | 2m 2-core shielded cable | ||
| Accessories | 2 nuts, 1 serrated washer | ||
| Protection Rating | IP67 | ||
Red: OUTPUT +
White: OUTPUT -
Shield: Insulated from main body
[A] M12 P=1 Thread
[B] Included Nut & Serrated Washer
[C] Cable
BNC Connector (Female)
Center Contact: Positive (+)
Shield: Insulated from main body
Red: OUTPUT +
White: OUTPUT -
Shield: Insulated from main body
[A] M12 P=1 Thread
[B] Included Nut & Serrated Washer
[C] Cable
BNC Connector (Female)
Center Contact: Positive (+)
Shield: Insulated from main body
Red: OUTPUT +
White: OUTPUT -
Shield: Insulated from main body
[A] M16 P=1 Thread
[B] Included Nut & Serrated Washer
[C] Cable
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| Extension Cable Model | Cable End | ||
| Cable Length 1.5m | |||
| CSS-BB（BNC - BNC） | a BNC HOT b BNC GND |
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| BNC Male | BNC Male | ||
| CSS-BC（BNC - Clip） | Red: SIG Black; Shield |
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| BNC Male | Alligator Clip | ||
| CSS-AB（BNC - Y-type Crimp Terminal） | Red: SIG Black; Shield |
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| BNC Male | Y-type Crimp Terminal 1.25Y-3 | ||
