Datasheet

System 7000
Vishay Micro-Measurements
Document Number: 11271 [e-mail] www.vishaymg.com
Revision 12-Oct-06 47
StrainSmart
®
Data Acquisition System
MODEL 7000-128-SM SCANNER SPECIFICATIONS
The purpose of the Model 7000-128-SM Scanner is to house
and retain the acquisition cards, regulate power to the cards,
establish and maintain communication between the Ethernet
interface and the input cards, synchronize the analog-to-dig-
ital converters in the system, and provide visual status infor-
mation to the operator.
CAPACITY:
Up to 16 Input Cards. 128 channels maximum
CONFIGURATIONS:
Rack-mount (19-inch) or bench-top
LCD DISPLAY:
64 x 128 white LED-backlit display
LED PANEL:
128 individual red/green LEDs; one per channel
KEYPAD:
Membrane. 20-key; 12 key numeric keypad, 5 key navigation
keypad, and three soft-keys
INPUT POWER:
10 - 32Vdc, 30A max
POWER INDICATION:
Green LED. Illuminated when power is on
ETHERNET INTERFACE:
IEEE 802.3, 802.3u 10Base-T, 100Base-TX, half- and
full-duplex, auto-detect
COMPACT FLASH
®
CAPACITY:
512MB supplied; 2GB maximum, Removable
PROCESSOR:
250MHz floating point digital signal processor
MEMORY:
64MB SDRAM
INTERNAL COMMUNICATION:
Asynchronous command bus, synchronous data bus
SYSTEM SYNCHRONIZATION:
Connections: Sync In, Sync Out
Topology: Daisy-chain
Cable Connection: TIA/EIA RJ-45, Category 5
Max. Distance: 100m
SYSTEM CALIBRATION REFERENCE:
Firmware-controlled
Accuracy: ±40ppm of setting
Drift: 1.9ppm/°C ± 0.6µV/°C typical, 9.4ppm/°C ± 2.1µV/°C
maximum
Resolution: 150µV nominal
Voltage Range: ±5V
DIMENSIONS:
7 H x 17.5 W x 13.37 D inches (178 x 445 x 340mm)
WEIGHT:
20lb (9.1kg)
MODEL 7003-8-SG STRAIN GAGE INPUT CARD
The Model 7003-8-SG Strain Gage Input Card is used in
conjunction with the Model 7003-8-A-I Analog Input Card to
perform bridge excitation, bridge completion, shunt
calibration, and signal conditioning for eight quarter, half, and
full bridges.
CHANNELS:
Eight per card
INPUTS:
Software selectable for S+/S-, Vcal+/Vcal-, or excitation
Strain Gage: 120Ω, 350Ω, 1000Ω quarter-bridges; 60Ω to
5000Ω half- and full-bridges
Input Impedance: 220MΩ nominal each input
Source Current: ±5nA per volt excitation
MEASUREMENT RANGE AND RESOLUTION:
Total range depends upon excitation setting (see table).
Resolution: 0.5µε (GF=2)