VSA-1214 / VSA-1215 Video Demonstration: Click Here

Description

The VSA™-1214 and VSA-1215 hardware modules attach firmly to Palm TX handheld computers to form compact, extremely portable instruments. The Palm TX supplies the computing power and 100 MB of data storage, while the Datastick® VSA hardware module supplies the sensor power and interface. SD (Secure Digital) memory cards — up to 2 GB each — provide virtually unlimited auxiliary storage.

The VSA hardware modules each have a standard BNC connector and a very low-noise input that accommodates and powers almost any ICP®-type piezoelectric accelerometer. In addition, the VSA-1215 can accommodate ICP-type velocity sensors.

Power

The VSA modules have internal rechargeable Li-ion batteries and advanced power management capabilities that typically stretch the VSA-1214 to four hours between recharges on an average duty cycle (you can recharge on your lunch break) and the VSA-1215 can go a full shift or longer.

An optional 4800 mA/h rechargeable external battery pack is available if you need more power, and it gives you the added benefit of powering or recharging BOTH the VSA module and the Palm TX handheld computer.

Key Features

• Uses and powers standard ICP-type piezoelectric accelerometers
• Attaches to high-performance Palm TX handheld computer
• Extremely low noise floor
• Self-powered or optional external power
• Weighs 10 oz with Palm TX handheld computer

• Sensor input: Standard BNC connector
• Sensor excitation:
  • VSA-1214: 24V, 20 mA
  • VSA-1215: Switchable on / off with selectable voltage and current: 5, 12, 18, or 24VDC, and 2, 5, 10, 20, or 24 mA
• Sensor types:
  • VSA-1214: ICP -type piezoelectric accelerometers
  • VSA-1215: ICP -type piezoelectric accelerometers and ICP-type piezoelectric velocity sensors
• Sensor input ranges:
  • VSA-1214: 0-5 g, 0-20 g
  • VSA-1215: 0-1 g, 0-2 g, 0-5 g, 0-10 g, 0-20 g, or 0-50 g
• Antialiasing filter: 10th order hardware low-pass
• A-to-D resolution: 12 bits in multiple ranges
• Dynamic range:
  • VSA-1214: 90 dB overall, 65 dB per input range
  • VSA-1215: 130 dB overall, 65 db per input range
• A-to-D internal sample rate: up to 40 KHz max
• Frequency range:
  • VSA-1214: up to 10 kHz
  • VSA-1215: up to 20 kHz
• FFT resolution:
  • VSA-1214: 400 / 800 / 1600 lines
  • VSA-1215: 400 / 800 / 1600 / 3200 lines
• Supported handheld computer: Palm TX
• Power: Internal rechargeable 800 mA/h Li-Ion battery (Optional external 4800 mA/h 5 V rechargeable Li-Ion battery, and external 120/240 VAC to 5 VDC, 1 A regulated wall transformer are available)
• Dimensions and weight with Palm TX handheld computer: Approx. 5.75 x 3.125 x 1.875 inches (146 x 79 x 48 mm); 10 ounces (283 g)