The Bently Nevada AP3500S2-Z1 is a side exit accelerometer designed for permanent vibration monitoring. It delivers a dynamic sensitivity of 500 mV/g with a ±5% tolerance at 25°C. This sensor measures acceleration up to 10g peak, making it ideal for rotating machinery protection.
Additionally, this Bently Nevada model features a PZT ceramic shear sensing element. The shear design minimizes base strain and thermal transient errors. You can rely on this sensor for accurate data in steam turbines, compressors, and pumps.
The AP3500S2-Z1 requires a voltage source of 18-30 Vdc for operation. It draws 2-10 mA through a current regulating diode. The bias output voltage sits at 10 Vdc, providing a stable baseline for signal processing.
Output impedance stays below 100 Ω, allowing long cable runs. Recommended cable length is up to 30 meters using shielded twisted pair. Broadband electrical noise is only 12 μg from 2.5 Hz to 25 kHz, ensuring clean signal quality.
Dynamic sensitivity reaches 500 mV/g with ±5% accuracy at 25°C. Amplitude nonlinearity is within 1% , preserving measurement fidelity. Transverse sensitivity is maximum ±7% of axial, minimizing cross-axis interference.
Temperature response shifts by -8% at -50°C and +5% at +120°C. You can compensate for these changes in your monitoring system. The resonant frequency is 18 kHz, far above the operating range.
Frequency response (typical):
±10%: 0.4 – 1,500 Hz
±3 dB: 0.2 – 3,700 Hz
The Bently Nevada AP3500S2-Z1 operates from -50°C to 120°C continuously. It withstands 250 g peak vibration and 2,500 g peak shock. Humidity resistance reaches 100% RH for outdoor applications.
Storage temperature ranges from -55°C to +125°C. Insulation resistance exceeds 100 MΩ at 50 Vdc. Mean Time Between Failures (MTBF) is 200,000 hours for exceptional reliability.
The sensing element uses PZT ceramic in shear mode. Case material is 316L stainless steel, offering excellent corrosion resistance. Weight is 148 grams (sensor only). Mounting uses a 1/4-28 captive hex head screw.
This model features a side exit, 2-pin MIL-C-5015 style connector. The side exit design simplifies installation in tight spaces. Pin functions are standard:
Shell: Ground
Pin A: Power/Signal
Pin B: Common
Use shielded twisted pair cable no longer than 30 meters. This cable type reduces electromagnetic interference from nearby equipment.
First, clean the mounting surface thoroughly to remove dirt or old paint. Apply a thin layer of grease to the 1/4-28 screw threads. This improves mechanical coupling and signal transfer. Torque the captive hex screw to 5-7 N·m (do not exceed this value).
Next, route the shielded twisted pair cable away from high-voltage power lines. Connect pin A to the 18-30 Vdc power source. Connect pin B to the common ground. The shell automatically grounds through the mounting surface.
Furthermore, verify the bias voltage reads 10 Vdc before full-scale operation. For high-temperature areas (above 100°C), use high-temperature rated cable. Finally, perform a quick test with a handheld shaker. Confirm the Bently Nevada AP3500S2-Z1 outputs the expected 500 mV/g signal.
1 x Bently Nevada AP3500S2-Z1 accelerometer (148g)
1 x 1/4-28 captive hex head mounting screw (pre-installed)
1 x Protective dust cap for MIL-C-5015 connector
1 x Calibration certificate (12-month interval)
1 x Quick-start installation guide
Note: Cables, power supplies, and mounting accessories are sold separately.
We ship worldwide using FedEx, UPS, or DHL. Orders placed before 2 PM ship same business day. Tracking information is provided within 24 hours. Express delivery typically takes 3-5 business days.
1. What is the difference between the AP3500S2-Z1 and standard 500 mV/g sensors?
The Bently Nevada AP3500S2-Z1 features a side exit connector for tight spaces. It also offers a hermetically sealed 316L stainless steel housing. Standard sensors often use top exit connectors and lower-grade materials.
2. Can I use this sensor in a hazardous area?
This model is not certified for hazardous areas. For Zone 0 or Zone 1 installations, please check Bently Nevada's intrinsically safe models.
3. How long is the calibration valid for the AP3500S2-Z1?
Bently Nevada recommends recalibration every 12 months. The sensor ships with a calibration certificate included.
4. What happens if the bias voltage is not 10 Vdc?
A non-10 Vdc reading indicates a power supply issue or internal damage. First, check your 18-30 Vdc source and current limit (2-10 mA). Also verify proper pin connections.
5. Is the 1/4-28 thread compatible with metric mounting holes?
No, the 1/4-28 thread is imperial. For M6 metric holes, you need a thread adapter. Contact our sales team for adapter availability.
| Brand Name | Bently Nevada |
| Model No. | AP3500S2-Z1 |
| Product Type | Accelerometer |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
