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Model 141 Linear Accelerometer
Brand: Setra Systems, IncThe Model 141 is a linear accelerometer that produces high level instantaneous DC output signal proportional to sensed accelerations (ranging from static acceleration up to 3,000 Hz as indicated below). Setra accelerometers are unique in their ability to withstand exceedingly high g overload without damage.
The Model 141 incorporates the super-rugged Setra capacitance-type sensor and a miniaturized electronic circuit. Its excellent dynamic response is maintained by air damping, which varies with temperature approximately one-tenth as much as the best fluid damping.
The electrical characteristics are compatible with conventional strain-gauge type signal conditioning, including the use of shunt Rcal over any selected range up to 100% full scale.
The stainless steel case is O-Ring sealed, has a well-defined base plane and is quite insensitive to mounting strain. Cross axis interface is exceedingly low. The external easy-to-replace cable attachment facilitates installation and service.
Specifications
Brand
Accuracy
- ± 1 % of Full Scale
Approvals & Certifications
- ISO 9001
Bandwidth
- Flat Response: (± 3 dB): 0 to 3,000 Hz
Cable Length
- 10 feet (3 metres)
- 2 feet (0.6 metres)
- 25 feet (7.62 metres)
Calibration
- Calibration Signal (Rcal): 0 to 100 %
Constant Acceleration
- Nominal Range: ± 2 to ± 600 G
- Transverse Acceleration Response: < ± 0.012 G/g
Current
- Excitation Current: 10 mA at ± 1,000 mV (24 Vdc Excitation)
- Excitation Current: 5 mA at ± 500 mV (10 Vdc Excitation)
Electrical Connectors
- 2 Foot Multiconductor Cable
- Electrical Circuit: 3-Wire
Enclosure, Body Material
- Stainless Steel
Excitation Voltage
- 10-28 Vdc at ± 1,000 mV (24 Vdc Excitation)
- 5-15 Vdc at ± 500 mV (10 Vdc Excitation)
- Calibrated Excitation Voltage: 10 Vdc at ± 500 mV (10 Vdc Excitation)
- Calibrated Excitation Voltage: 24 Vdc at ± 1,000 mV (24 Vdc Excitation)
Frequency
- Internal Frequency: 20 MHz Approximately
- Natural Frequency (Nominal): 300 to 5,000 Hz
Hysteresis
- 0.10 % of Full Scale
Isolation
- 100 megaohms
NACE & NIST
- NIST
Non-Linearity
- ± 1 % of Full Scale (Best Fit Straight Line)
Non-Repeatability
- 0.05 % of Full Scale
O-Ring Material
- Stainless Steel
Operating Temperature
- -23° to 65° C (-10° to 150° F)
Output
- FS G Output: < ± 25 % of Nominal Output
- Nominal Output (Open Circuit): ± 1,000 mV at 24 Vdc
- Nominal Output (Open Circuit): ± 500 mV at 10 Vdc
- Zero G Output: < ± 25 mV (Factory Calibrated at 10 Vdc or 24 Vdc Excitation)
Output Noise
- Noise Level: < ± 0.01 % Nominal Range (RMS, In-Band)
Resolution
- Infinite
Rotation
- Bi-Directional
Seat / Seal Material
- Seal: Stainless Steel
Sensitivity
- Low Transverse Sensitivity: 0.012 G / g
- Sensitivity Shift: < ± 0.02 % Nominal Range/°F (< ± 0.36 %/°C)
Zero Offset
- Zero Shift: < ± 0.02 % Nominal Range/°F (< ± 0.36 %/°C)