Model 787-500-D2 Class l, Div. 2 Certified Low-Frequency Accelerometer
Description
Wilcoxon’s side-exit broadband sensor is certified for usage in hazardous areas. The high-sensitivity accelerometer offers an interior sensing element capable of producing 500 mV/g outputting clear signals at low vibration levels. The low-end frequency response makes it ideal for slow-speed applications such as wind turbine generators and cooling towers. A high top-end frequency response offers clear signals for early bearing fault detection, gearbox wear, and other high-speed applications. The sensor is supplied with a 2 pin MIL-5015 connector. The 787-500-D2 is classified for usage in Class I Div. 2/Zone 2 locations where ignitable gases, vapors or liquids are handled, processed or used but are not usually present during normal operation and can only escape through accidental rupture, breakdown or leaks.
Features- High sensitivity
- Clear signals at low vibration levels
- Extended low frequency response
- Class I, Div 2/Zone 2 certified, non-incendive
- Mounts in any orientation
- Hermetically sealed
- Rugged design
- ESD-protected
- Reverse wiring protection
- Manufactured in an approved ISO 9001 facility
Specifications
Specifications
Approvals & Certifications
- ISO 9001
Approvals & Certifications
- ATEX Ex II 3 G Ex NA IIC T4 Gc
- CE
- CSA (C,US) Class I, Div. 2, Grade A, B, C, D, Class I, Zone 2 AEx, Ex NA II T4 Tamb: -50° to 120° C
Circuit Protection
- ESD Protection
- Reverse Wiring Protection
Electrical Connectors
- Cable (J10 / J9T2A)
- Mating Connector: R6D2
- Output Connector: 2-Pin, MIL-C-5015 Style
Enclosure, Body Material
- 316L Stainless Steel
Environmental Protection
- Non-Incendive
Frequency
- Frequency Response (± 10 %): 0.5 to 5,000 Hz
- Frequency Response (± 3 dB): 0.2 to 10,000 Hz
- Resonance Frequency: 22 kHz
Mounting
- 1/4-28 Captive Hex Head Screw, 0.046” Diameter Safety Wire Hole
Mounting Position
- Any Orientation
Noise
- Electrical Noise, Equivalent G (Broadband: 2.5 Hz to 25 kHz): 250 µg
- Electrical Noise, Equivalent G (Spectral: 10 Hz): 2.5 μg√Hz
- Electrical Noise, Equivalent G (Spectral: 100 to 1,000 Hz): 1.5 µg/√Hz
Non-Linearity
- Amplitude Non-Linearity: 1 %
Output Impedence
- Maximum
Power Requirement
- 18-30 Vdc
- Current Regulating Diode: 2-10 mA
Range
- Acceleration Range, Vdc > 22 V: 10 G Peak
Seal Type
- Hermetic
Sensitivity
- Base Strain Sensitivity, Max.
- Electromagnetic Sensitivity, Equivalent G, Max.
- Sensitivity, ± 5 %, 25° C (77° F): 100 mV/g
- Transverse Sensitivity: Max.
Shock
- Shock Limit, Min.: 5,000 G Peak
Temperature Range
- -50° to 120° C (-58° to 248° F)
Vibration
- Vibration Limit: 500 G Peak
Voltage
- Bias Output Voltage: 12 Vdc