Silicon Designs, Inc.

Model 3320
G-LoggerTM ACCELERATION ACQUISITION SYSTEM

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  •  1, 2 or 3 Axis Remote Acceleration
   •  8 Mega-Sample Non-Volatile Memory
   •  Portable Battery Operation
   •  -20 to +60°C Operation
   •  Simple PC Based Programming
   •  Works with Model 2420 & 2010 Accelerometers
   •  Logs Various Data Types:
          AC and DC Acceleration
          AC and DC Peak Acceleration
          Peak Acceleration Events
          RMS Acceleration
          AC Velocity
          AC Peak Velocity
          RMS Velocity
          Temperature (Interior Case Sensor)
  •  115.2 kBaud Serial Data Link

DESCRIPTION

The Model 3320 is a battery powered, acceleration and thermal data acquisition system which provides sample rates of up to 4000 samples per second on each of the three acceleration axes. A single model 2420 Triaxial Digital Accelerometer (priced separately) can be directly connected to the 3320's external D-subminiature 9-pin male connector. Alternatively, up to three model 2010 Single Axis Digital Accelerometer Modules (priced separately) may be connected via a model 3901 Cable Adapter (priced separately). The connection length for either the 2420 or 2010/3901 combination may be extended an additional 10 feet via the D-subminiature 9-pin flat extension cable (included). The 3320 utilizes a RISC microprocessor and a custom ASIC, to automatically log AC/DC accelerations or AC velocities into its on-board flash memory. To reduce the amount of stored data, the user can record peak acceleration or velocity samples for selected time intervals or apply a root mean squared (RMS) algorithm to the data. Multiple windows of contiguous acceleration samples can also be recorded, with each window center triggered, by acceleration peak events. The 3320 comes in a rugged, die cast aluminum, case with an overall size of 3.5" x 4.5" x 2.2" and a weight of 29 oz. including batteries. A user’s manual and 110VAC to 9VDC plug-in power adapter are included.

OPERATION

The Model 3320 is easily programmed via menu based 'mission' planning software running under Windows 95/98 on your personal computer. After downloading a mission to the 3320, via a supplied RS-232 serial cable connected to your PC's serial port, the 3320 can be disconnected and moved to the data collection site. An AC power adapter is included to power the 3320 during mission programming and data download if battery power needs to be conserved. Missions can be programmed to start immediately, after a delay or at an absolute time/date with sequentially programmable data types and independent time durations. Total data acquisition time (depending upon acquisition rate and battery life) ranges from 300 seconds to 3 weeks. The data sample rate ranges from 1 per second to 4000 per second. The case can be mounted via two #8 screws and the mounting screws can be tightened with the cover attached.

APPLICATIONS

SHIPPING DATA RECORDER
CRASH EVENT RECORDER
       AUTOMOTIVE SUSPENSION TESTING       

RACE CAR INSTRUMENTATION
FLIGHT VIBRATION MONITOR
       ROTATING MACHINERY MONITOR       

MISSION PROGRAMMING MENU

The main menu is a user friendly interface for planning data acquisition 'missions'. Mission parameters are entered as direct numeric values or selected via drop-down menus. An automatic 'mission tag' based on the serial number, start time and date is attached to each mission for foolproof mission and data identification.

SPECIFICATIONS

PHYSICAL
Case Size
Weight
Mounting
Case Material 		3.5" x 4.5" x 2.2"
29 oz Incl. Batteries
2 holes, # 8 Screws
Die Cast Aluminum
ENVIRONMENTAL
Operating Temp
Humidity
Max Shock 		-20 to +60 °C
0 to 95% RH
500g (.5 ms)
PC REQUIREMENTS
Windows 95/98/NT4.0/2000,
Serial Port with 16550 or 16550A UART,
486 or higher (Pentium recommended),
16Mb RAM (32Mb recommended),
40Mb free hard disk (100Mb recommended)
OPERATIONAL
Memory
Serial Data Rate
Internal DC Power
Opt. External Power
Accel. Cable Length		 8 Mbytes Flash
115.2 kbaud
2 Alkaline 1.5V D-Cells
4.75-18VDC @ 300 mA
13 ft Max
TRIAXIAL SAMPLE RATES/RESOLUTION
Acceleration: 1/sec (15 bits) to 4000/sec (8 bits)
Peak Accel: 1/sec (15 bits) to 4000/sec (8 bits).
Peak store min time = every .01 sec @ any sample rate,
Peak store max time = 1/2 total acquisition time period.
Accel Events: 16/sec (15 bits) to 4000/sec (8 bits)
1400 contiguous samples/event (triaxial Mode)
4200 contiguous samples/event (single axis mode)
Up to 1000 center triggered event windows
RMS Accel: 1/sec to 10/sec (12 bits @ all settings).
Velocity: 1/sec to 4000/sec 12 bits @ all settings).
Peak Velocity: Fixed @ 2000/sec (12 bits).
Peak store min time =.01 sec,
Peak store max time = 1/2 total acquisition time period.
RMS Velocity: 1/sec to 10/sec (12 bits @ all settings).
TEMPERATURE SAMPLE RATE / RANGE / RESOLUTION
1/min to 1/hr (-20 to +60° 0.5°C)

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE