Description
The Bently Nevada AS3100S2-Z0 is an Integrated Electronics Piezo-Electric (IEPE) accelerometer designed for vibration monitoring in industrial environments. The sensor provides an output voltage proportional to machine acceleration and interfaces with constant-current powered condition monitoring systems.
This accelerometer uses a piezoelectric sensing element with an integrated amplifier to improve signal integrity and reduce susceptibility to electrical noise. The device supports vibration measurement applications requiring wide dynamic range, stable linearity, and extended frequency response characteristics.
The sensor features a hermetically sealed stainless steel housing with case isolation for reduced ground loop effects in permanently mounted installations. The side-exit connector configuration supports installations where cable routing space is limited.
Typical applications include rotating machinery monitoring, predictive maintenance systems, process plant vibration analysis, compressors, pumps, motors, fans, and general industrial machinery protection systems.
Features
- Integrated Electronics Piezo-Electric (IEPE) design
- 100 mV/g sensitivity
- Stainless steel housing
- Hermetic sealing
- Case isolated construction
- Reverse wiring protection
- EMI/RFI shielding
- ESD protection
- Side-exit connector configuration
- Wide frequency response
- Compatible with constant-current power supplies
- Suitable for harsh industrial environments
Applications
- Turbine vibration monitoring
- Pump condition monitoring
- Compressor protection systems
- Motor vibration analysis
- Fan monitoring systems
- Predictive maintenance programs
- Portable vibration data collection
- Permanent mounted machinery monitoring
- Process industry rotating equipment
- Industrial asset condition monitoring
Technical Specifications
| DynamicSpecification |
|
| Sensitivity at 25 degC |
100 mV/g |
| Acceleration Range |
80 g peak |
| Amplitude Nonlinearity |
1% |
| Frequency Response |
+/-10%: 1.0-5,000 Hz |
| Frequency Response |
+/-3 dB: 0.7-10,000 Hz |
| Resonant Frequency |
22 kHz |
| Transverse Sensitivity, Max |
+/-5% of axial |
| Temperature Response at -55 degC |
-8% |
| Temperature Response at +120 degC |
+10% |
| ElectricalSpecification |
|
| Voltage Source |
18-30 Vdc |
| Current Regulating Diode |
2-10 mA |
| Broadband Electrical Noise at 2.5 Hz to 25 kHz |
700 ug |
| Spectral Electrical Noise at 10 Hz |
10 ug/sqrtHz |
| Spectral Electrical Noise at 100 Hz |
5 ug/sqrtHz |
| Spectral Electrical Noise at 1000 Hz |
5 ug/sqrtHz |
| Output Impedance, Max |
100 ohm |
| Bias Output Voltage |
12 Vdc |
| Grounding |
Case isolated, internally shielded |
| EnvironmentalSpecification |
|
| Temperature Range |
-50 degC to 120 degC |
| Vibration Limit |
500 g peak |
| Shock Limit |
5,000 g peak |
| Electromagnetic Sensitivity, Equivalent g, Max |
70 ug/gauss |
| Sealing |
Hermetic |
| Base Strain Sensitivity, Max |
0.002 g/ustrain |
| PhysicalSpecification |
|
| Sensing Element Design |
PZT ceramic / shear |
| Weight |
145 grams |
| Case Material |
316L stainless steel |
| Mounting |
1/4-28 captive hex head screw |
| Connector |
Side exit, 2-pin, MIL-C-5015 style |
| Recommended Cabling |
Shielded twisted pair, maximum 100 feet |
| Manufacturer |
Bently Nevada |
| Country of Origin |
U.S.A. |
Connections/Interfaces
| Connector PinFunction |
|
| Shell |
Ground |
| A |
Power/Signal |
| B |
Common |
Installation Guidelines
Use shielded twisted-pair cabling to minimize electromagnetic interference in high-noise industrial environments.
Maintain proper grounding practices to avoid unwanted ground loop conditions during permanent installation.
Install the accelerometer on a clean and rigid mounting surface to maintain vibration signal accuracy.
Verify connector orientation before energizing the sensor to prevent incorrect wiring conditions.
Avoid routing sensor cables alongside high-voltage motor cables or variable frequency drive output wiring.
Use appropriate moisture protection methods when the sensor is installed in washdown or outdoor environments.
Confirm mounting torque and thread engagement before commissioning the monitoring system.
Inspect cable shielding continuity during maintenance intervals to maintain signal quality.
FAQ
What type of sensor technology is used in this accelerometer?
The unit uses Integrated Electronics Piezo-Electric sensing technology with a PZT ceramic shear element.
What power supply is required?
The sensor requires a constant-current IEPE power source between 18 and 30 Vdc.
What is the sensitivity rating?
The sensitivity is 100 mV/g at 25 degC.
Can the sensor operate in wet environments?
The hermetically sealed housing supports operation in moisture-prone industrial environments when proper connectors are used.
Is the housing electrically isolated?
Yes. The case is isolated and internally shielded.
What connector style is used?
The device uses a side-exit 2-pin MIL-C-5015 style connector.
What is the maximum recommended cable length?
The recommended cable length is up to 100 feet using shielded twisted-pair cable.
What mounting thread is provided?
The sensor uses a 1/4-28 captive hex head mounting screw.
Can the sensor be used for permanent monitoring systems?
Yes. It is suitable for permanently mounted vibration monitoring installations.
What is the operating temperature range?
The operating range is -50 degC to 120 degC.
Does reverse wiring damage the sensor?
The sensor includes reverse wiring protection.
What vibration range can the device measure?
The accelerometer supports measurement up to 80 g peak.
What industrial systems can interface with this sensor?
The sensor interfaces with condition monitoring and machinery protection systems supporting IEPE inputs.
Is EMI/RFI shielding included?
Yes. The sensor includes EMI/RFI shielding to reduce electrical interference.