SV 81 General Purpose Accelerometer 500 mV/g
The SV 81 is an industry-standard IEPE accelerometer 500mV/g offered to Svantek’s vibration level meters (974, 977A, 979, 958A).
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The accelerometer’s high sensitivity and low electronic noise enable measurements of very low levels of machine vibration amplitudes over the typical machines’ frequency operating ranges.
For vibration measurements, the accelerometer is usually used with a measurement cable and is mounted on a vibrating surface with a SA 27 mounting magnet.
The SV 81 accelerometer measures vibration acceleration on a single axis. It’s sensitivity is 50 mV/(m/s2) ~ 500 mV/g. The measurement range is from 0.002 m/s2 RMS to 100 m/s2 Peak in the frequency response range from 0.2 Hz to 3700 Hz.
SV 81 Specification
Performance: | |
| Number of axis | 1 |
| Sensitivity (± 5 %) | 50 mV/(ms-2) ~ 500 mV/g |
| Measurement range | 0.002 ms-2 rmS ÷ 100 ms-2 PEAK |
| Frequency response (by design guideline, ± 3 db) | 0.2 Hz ÷ 3 700 Hz |
| Linearity | ± 1 % |
| Residual noise (1 Hz, 24°C) | 2.4 μg rmS |
| Residual noise (1 Hz to 25 kHz, 24°C) | 25 μg rmS |
| Transverse response sensitivity (20 Hz, 50 m/s2) | < 5 % |
| Resonant frequency | 16 kHz |
Electrical: | |
| Electrical grounding | isolated from machine grounding |
| Isolation (Case to Shield) | > 100 mΩ |
| Capacitance to ground (Nominal) | 70 pF |
| Supply current | 2 mA ÷ 10 mA |
| Supply voltage | 22 V ÷ 28 V |
| Bias voltage | +12 VdC |
| Output impedance (Nominal) | 50 Ω |
| Charge / discharge time constant (start-up time) | < 10 sec. typ. |
Environmental Conditions: | |
| Maximum vibration (shock survival) | 50 000 ms-2 Peak |
| Thermal sensitivity coefficient | 0.1 %/oC F.S. |
| Operating temperature range | from -55 °C to +90 °C |
| Operating temperature range (recommended) | from -10 °C to +50 °C |
| Humidity / Enclosure | IP67, epoxy sealed |
Physical: | |
| Connector | TNC socket, top radially mounted |
| Material housing & connector | Stainless steel |
| Mounting thread | 10-32 uNF 2b |
| Weight | 44 grams |
Accessories: | |
| Mounting stud 10-32 to M5 (included) | |
| SA 27/10-32 | Mounting magnet base (optional) |
| SC 27 | Coil cable TNC plug – TNC plug, 2 meters (optional) |
*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.
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