Datasheet

System 7000
Vishay Micro-Measurements
Document Number: 11271 [e-mail] www.vishaymg.com
Revision 12-Oct-06 49
StrainSmart
®
Data Acquisition System
MODEL 7003-8-HL HIGH LEVEL INPUT CARD
The Model 7003-8-HL High Level Input Card used in con-
junction with the Model 7003-8-A-I Analog Input Card to per-
form signal conditioning and excitation for high level (±10V)
inputs.
CHANNELS:
Eight per card
INPUTS:
Differential
Input Impedance: 220MΩ nominal each input
Input Bias Current: ±0.5nA typical (±2nA max.)
INPUT CONNECTOR:
Eight-pin RJ-45
AMPLIFIER:
Zero Temperature Stability: ±2µV/°C RTI, typical, ±10µV/°C
RTO, after 60-minute warm-up
DC Gain Accuracy and Stability: ±0.1%; ±30ppm /°C
Linearity: ±0.02% of Full Scale
Common-Mode Rejection (dc to 60 Hz): >90dB
Common-Mode Voltage Range: ±12V typical
MEASUREMENT RANGES AND RESOLUTION:
Range: ±10V
Resolution: 100µV effective
EXCITATION:
Selection: Software controlled
Bipolar range: 0 to ±15Vdc (30Vdc total)
Unipolar range: 0 to +24Vdc
Accuracy: ±0.1% of full scale using remote sense
Current: 100mA max. Over-current/over-temperature protected
Load Regulation: <0.05% of full scale (bipolar mode) for a
load variation of 10% to 100% of full scale load (with remote
sense)
Temperature Stability: Better than ±30ppm/°C
DIMENSIONS:
6.5 L x 6.5 W x 0.9 H in (165 x 165 x 23mm)
WEIGHT:
0.45lb (0.2kg)
MODEL 7003-8-A-I ANALOG INPUT CARD
The Model 7003-8-A-I Analog Input Card performs the
analog anti-alias filtering, analog-to-digital conversion and
data storage for the System. The Model 7003-8-A-I is used
in conjunction with a Sensor Input Card, which performs the
sensor-specific analog conditioning.
The Model 7003-8-A-I consists of eight dedicated 3-pole
constant delay analog anti-alias filters, eight fully
synchronized, 24 bit analog-to-digital converters operating at
40k samples/second/channel, a dedicated digital signal
processor to perform scaling and digital filtering, an 800,000
sample pre-trigger buffer, and 512MB of CompactFlash
®
memory for data storage.
CHANNELS:
Eight per card
A/D CONVERTER:
Quantity: Eight (one per channel)
Architecture: Sigma-delta
Resolution: 24 bits
Conversion Rate:
Radix-10: 40k samples/second/channel
Radix-2: 40.96k samples/second/channel
DATA RECORDING RATES:
2048, 1024, 512, 256, 128, or 64 samples/second/channel
(radix-2)
2000, 1000, 500, 200, 100, or 10 samples/second/channel
(radix-10)
PRE-TRIGGER BUFFER:
Type: SDRAM, firmware-controlled
Depth: 800,000 samples/channel
ANALOG ANTI-ALIAS FILTER:
Type: Low-pass
Frequency: 3.5kHz @-3dB
Number of Poles: Three
Topology: GIC, constant delay
PROCESSOR:
Type: 32-bit floating point digital signal processor
250MHz operating frequency
RAM:
Type: SDRAM
Size: 64MB
PROGRAM AND CALIBRATION DATA STORAGE:
Type: Flash Memory
Size: 1MB
DATA STORAGE:
Type: Sandisk Ultra-Series II
®
CompactFlash
Quantity: One per card
Capacity: 512MB supplied; 2GB maximum
Removable
DIGITAL-TO ANALOG CONVERTER:
Resolution: 24 bit
Range: 0-10V
SIZE:
6.8 L x 6.5 W x 0.7 H in (173 x 165 x 18mm)
WEIGHT: 0.35lb (0.16kg)