Products Description




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Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Bently Nevada |
| Product | 89412‑01 Magnetic Pickup / Speed Sensor |
| Product Model | 89412‑01 |
| Product Type | Magnetic Tachometer / Speed Sensor |
| Measurement Principle | Inductive magnetic pickup (senses rotating ferrous targets) |
| Output Signal | AC voltage pulses proportional to shaft/target passing frequency |
| Typical Output Voltage | ~0.1 V – several volts AC depending on speed and target size |
| Frequency Range | 10 Hz to 10 kHz (varies with installation) |
| Operating Temperature Range | −40 °C to +120 °C |
| Operating Voltage | Passive (no external power required for pickup element) |
| Connector Type | Two‑lead vibration‑rated cable or connector (varies by configuration) |
| Cable | Integral shielded cable (length varies by ordering option) |
| Mounting | Threaded or stud mount (installation dependent) |
| Housing Material | Stainless steel / industrial grade metal |
| Dimensions | Approx. 30 mm diameter × ~55 mm length |
| Weight | ~0.15 kg |
| Operating Environment | Industrial machinery, rotating shaft speed sensing |
| System Compatibility | Condition monitoring or speed/phase reference systems |
FAQ
FAQ
Q1: What is the Bently Nevada 89412‑01 used for?
A1: It is a magnetic pickup (speed sensor) used to detect rotation of a ferrous target (gear, shaft, notch) and generate AC voltage pulses for speed or phase reference.
Q2: How does this magnetic pickup sensor work?
A2: It operates on the inductive principle — as a ferrous target passes the sensor’s magnetic tip, it induces a voltage pulse proportional to the relative speed of the target.
Q3: Does the 89412‑01 require external power?
A3: No — the magnetic pickup generates its own AC signal as the ferrous target passes by; no external excitation power is required.
Q4: What signal output does it provide?
A4: It outputs AC voltage pulses whose frequency corresponds to the rotational speed of the machine and whose amplitude depends on speed and target geometry.
Q5: What environments is this sensor suitable for?
A5: It is suitable for industrial environments where rotating machinery speed, phase, or vibration needs to be monitored.
Q6: What temperature range can this sensor operate in?
A6: It can operate in a wide industrial temperature range, typically from about −40 °C up to +120 °C.
Q7: How is this sensor mounted?
A7: It is typically mounted near a shaft or gear toothed wheel such that its tip faces the rotating ferrous target with a small air gap.
Q8: Are additional components needed to use this sensor?
A8: Yes — the output signal often needs to be connected to a tachometer, proximitor module, PLC input, or monitoring electronics that count frequency or convert it to speed/phase information.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
