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Model HT786A High Temperature General-Purpose Accelerometer
Brand: Wilcoxon Sensing TechnologiesFor applications in which extremely high temperature operation is needed, Wilcoxon offers the HT series of accelerometers. Dryer sections of a paper machine regularly create conditions up to 150º C. Vibration monitoring sensors must be capable of operating continuously in hot environments without degradation. HT series sensors are built with extended range components that are manufactured to withstand high temperatures for long periods of time without failing.
The top-exit HT786A 100 mV/g broadband sensor operates at high temperatures for monitoring machine vibration on a wide range of rotating equipment such as motors, pumps, fans, compressors, turbines and generators. The 316L stainless steel case provides rugged durability for most extreme environments. The sensing element is housed in a case-isolated Faraday shield, providing maximum protection from ground loops and RF interference.
Features- Hermetically sealed
- ESD-protected
- Reverse wiring protection
- Manufactured in an approved ISO 9001 facility
Specifications
Approvals & Certifications
- ISO 9001
Approvals & Certifications
- CE
Circuit Protection
- ESD Protection
- Reverse Wiring Protection
Electrical Connectors
- Mating Connector: 2-Pin, MIL-5015 Style
Element
- Sensing Element Design: PZT, Shear
Enclosure, Body Material
- 316L Stainless Steel
Frequency
- Frequency Response (± 10 %): 1 to 9,000 Hz
- Frequency Response (± 3 dB): 0.5 to 14,000 Hz
- Frequency Response (± 5 %): 3 to 5,000 Hz
- Resonance Frequency, Nominal: 30 kHz
Mounting
- 1/4-28 UNF Tapped Hole
Noise
- Electrical Noise, Equivalent G, Nominal (Broadband: 2.5 Hz to 25 kHz) at 150° C (302° F): 1,100 µg
- Electrical Noise, Equivalent G, Nominal (Broadband: 2.5 Hz to 25 kHz) at 25° C (77° F): 700 µg
- Electrical Noise, Equivalent G, Nominal (Spectral: 10 Hz) at 150° C (302° F): 14 µg/√Hz
- Electrical Noise, Equivalent G, Nominal (Spectral: 10 Hz) at 25° C (77° F): 10 µg/√Hz
- Electrical Noise, Equivalent G, Nominal (Spectral: 100, 1,000 Hz) at 150° C (302° F): 7 µg/√Hz
- Electrical Noise, Equivalent G, Nominal (Spectral: 100, 1,000 Hz) at 25° C (77° F): 5 µg/√Hz
Non-Linearity
- Amplitude Non-Linearity: 1 %
Output Impedence
- Maximum 100 Ω
Power Requirement
- 18-30 Vdc
- Current Regulating Diode: 2-10 mA
Range
- Acceleration Range, Vdc > 25 V: 80 G Peak
Seal Type
- Hermetic
Sensitivity
- Base Strain Sensitivity, Max. 0.0002 g/μstrain
- Electromagnetic Sensitivity, Equivalent G, Max. 70 µg/gauss
- Sensitivity, ± 5 %, 25° C (77° F): 100 mV/g
- Transverse Sensitivity, Max. 5 % of axial
Shock
- Shock Limit: 5,000 G Peak
Temperature Range
- -50° to 150° C (-58° to 302° F)
Vibration
- Vibration Limit: 500 G Peak
Voltage
- Bias Output Voltage at 150° C (302° F): 12 Vdc
- Bias Output Voltage at 25° C (77° F): 13 Vdc