SV 84 Building and Ground Vibration Accelerometer
The SV 84 Building and Ground Vibration Accelerometer is a hermetically sealed triaxial piezoelectric accelerometer designed to monitor the vibration in harsh industrial environments.
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The signal ground is isolated from the mounting surface and outer case to prevent ground loops. The Annular shear mode design prevents from thermal transient and from spurious signal from high transverse vibrations. Low noise electronic and a temperature compensated design gives the accurate result over the complete temperature range. The glass seal hermetic connector protects the piezoelectric disc and the electronic from harmful environmental influences, significantly increasing their reliability and lifetime.
SV 84 Building and Ground Vibration Accelerometer Specification
Performance: | |
| Number of axis | 3 |
| Sensitivity (± 10 %) | 100 mV/(ms-2) ~ 1000 mV/g |
| Measurement range | 0.0005 ms-2 rmS ÷ 50 ms-2 Peak |
| Frequency response (± 3 db) | 0.2 Hz ÷ 3 700 Hz |
| Linearity | ± 1 % |
| Residual noise (1 Hz, 24°C) | 2.0 μg rmS |
| Residual noise (1 kHz, 24°C) | 6.3 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 |
| Dual case isolation | internal Faraday shield (suitable for permanent installation |
| Supply current | 2 mA ÷ 10 mA |
| Supply voltage | 22 V ÷ 28 V |
| Bias voltage | +10 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 +70 °C |
| Operating temperature range (recommended) | from -10 °C to +50 °C |
| Humidity / Enclosure | Not affected, hermetically sealed |
Physical: | |
| Connector | M12 glass seal, top radially mounted |
| Material housing & connector | Stainless steel |
| Dimensions | 41x42x23 mm |
| Mounting thread | M6 |
| Weight | 275 grams |
Accessories: | |
| SA 207B | Mounting base for building and ground vibration (optional) |
| SC 281 | Cable M12 to Amphenol (SV 212_x), 5 meters (optional) |
| SC 282 | Cable M12 to Lemo 4-pin (SVAN 958A), 5 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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