GeoSIG VE-2x Velocity Sensor
Key Features
- Wide Full Scale Range, ± 1 to ± 100 mm/s
- Bandwidth 4.5 Hz to 315 Hz
- Civil Engineering and general vibration measurement applications
- Built-in Impulse Test Circuit
- Single Bolt Mounted Housing provides up to ± 10° of Levelling Adjustment
The VE Velocity Sensors are engineered for consistent performance over a long lifetime. Advanced computerised testing, manufacturing techniques and quality control are used in the production process to provide both, the uniform parameters and the rugged qualities necessary in modern velocity sensors. The sensor module has been proven world-wide for many years in different applications. The symmetrical rotating dual coil construction minimises the force on the spring arms. The use of precious metals ensures optimum electrical contact and a long operating life.
The VE Velocity Sensors operate from a wide range of input voltages and can be used for a variety of civil engineering and general vibration measurement applications. The VE-21-H is uniaxial horizontal, the VE-21-H a uniaxial vertical and the VE-23 is a triaxial velocity sensor. The VE Velocity Sensors are housed in a very compact 195 x 112 x 95 mm case. The sealed cast aluminium housing contains a MS style connector or a sealed cable inlet. The housing also incorporates a single bolt mount with three levelling screws.
The VE Velocity Sensors operate from a wide range of input voltages and can be used for a variety of civil engineering and general vibration measurement applications. The VE-21-H is uniaxial horizontal, the VE-21-H a uniaxial vertical and the VE-23 is a triaxial velocity sensor. The VE Velocity Sensors are housed in a very compact 195 x 112 x 95 mm case. The sealed cast aluminium housing contains a MS style connector or a sealed cable inlet. The housing also incorporates a single bolt mount with three levelling screws.
Standard VE-2x
Options
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General Characteristics
- Application:
- Civil engineering, general vibration measurement
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Configurations: Triaxial Biaxial Uniaxial Axes Alignment** VE-23 X X – Y – Z H – H – V VE-22-H X X – Y H – H VE-22-HV X X (or Y) – Z H – V VE-21-H X X (or Y) H VE-21-V X Z V - ** H: Horizontal, V: Vertical
- Full Scale Range:
- ± 100 mm/s optional: ± 1, ± 10 mm/s
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Specification
- Instrument Type:
- Digital grade long travel geo-phones
- Dynamic Range:
- > 96 dB
- Linearity:
- < 0.3 % of full scale
- Cross Axis Sensitivity:
- < 0.1 % of full scale
- Frequency Response
- 4.5 to 315 Hz
- Damping
- Standard 0.7
- Full Scale Output
- 0 ± 10 V differential (20 Vpp) optional 2.5 ± 2.5 V single-ended (5 Vpp) 0 to 20 mA current loop
- Output impedance:
- < 50 Ω
- Measuring Range:
- See plot
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Power
- Power supply voltage:
- 9 to 15 VDC
- Supply Current:
- Typically 8 mA per axis
- Power Consumption:
- 26 mA typical, 116 mA max @ 15 VDC
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Connector Pin Configuration
- Pin 1-2, 3-4, 5-6:
- Signal output for axis X, Y, Z
- Pin 7-8:
- Test input, Digital test-pulse (0 – 12 V)
- Pin 9-10:
- +12 VDC Power Supply
- Pin 11-12:
- Sensor Mode
- Case:
- Shielded Ground
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Environment/Housing
- Housing Type:
- Cast aluminium
Sealed access cover - Housing Size:
- 195 x 112 x 95 mm
- Weight:
- 2.0 kg
- Index of Protection:
- IP 65
optional IP 68 - Temperature Range:
- -25 to 85 °C (operating)
-40 to 100 °C (storage) - Humidity:
- 0 to 100 % (non-condensing)
- Mounting
- Single bolt, surface mount, adjustable within ± 10°
- Floor mounted, Full scale ± 100 mm/s 2m cable with sensor mating connector, concrete anchor and user manual on CD
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- Cable & connector:
- Sealed cable inlet, replaces connector cable with shielded twisted pairs for any length (including mating sensor connector) with open end Cables for connection to GeoSIG recorder connector on user specification mounted at cable end
- Housing:
- Watertight IP68 housing stainless steel protective housing
- Temperature Range:
- -25 to 100 °C (operating)
- Temperature Output:
- Temperature sensing at the sensor side
- 1 Hz Extension
- Electrical circuit, which extends the passband down to 1 Hz.
- Low Noise Amplifier
- Amplification of 1000 using very low noise electronics (model VE-2XHG)
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Ordering Information
- Specify
- Type of VE-2x, full scale range, and other applicable options
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**Specifications subject to change without notice