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Svantek UK

SV 84 Building and Ground Vibration Accelerometer

SV 84 Building and Ground Vibration Accelerometer is a hermetically sealed triaxial piezoelectric accelerometer designed to monitor the vibration in harsh industrial environment.

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Signal ground is isolated from the mounting surface and outer case to prevent ground loops. 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 is offered separately or as a part of the SV 207B kit that includes metal mounting base (shown on a photo).

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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