For technical questions, contact
mm@vpgsensors.com
11992-EN
Rev 09-Dec-2020
www.micro-measurements.com
1
System 7100
System 7100 – Data Acquisition SystemSystem 7100 – Data Acquisition System
FEATURES
• Stable, accurate, low-noise signal conditioning
• Individual input cards for strain gage and strain-gage
based transducers, thermocouples, sensors with high
level voltage outputs, and LVDTs
• Electronically selectable, built-in bridge completion for
120, 350, and 1000 Ohm strain gages
• Scalable synchronized system (using multiple scanners)
• Maximum scan rate of 2000 samples per second
(Radix-10).
• Self-calibration traceable to NIST standard
• Simultaneous sampling with anti-aliasing filter and
analog-to-digital conversion for each channel
• Selectable digital filtering of measurement signals
• High-speed Ethernet network interface with DHCP
addressing
DESCRIPTION
Micro-Measurements System 7100 builds upon the
years of experience gained since the introduction of
Systems 4000, 5000, 6000 and 7000 by continuing to
provide a complete hardware/software approach to data
acquisition, reduction, and presentation for strain gages
and related sensors for stress analysis testing.
System 7100 hardware is designed to incorporate all the
features required for precision strain measurement in a
high channel density enclosure. Strain gages, strain-gage
based transducers, thermocouples, LVDTs, and other
sensors with high level voltage outputs can be intermixed
in groups of eight (8) by choosing the appropriate sensor
card for up to 128 channels in a 5U height, 19-inch rack
mountable scanner (7100-128-SM). A 32-channel scanner
is also available (7100-32-SM). The Ethernet interface with
DHCP addressing allows flexible positioning of scanners,
and multiple scanners can easily be synchronized using a
single sync cable (maximum length 100 feet (30m)).
System 7100 is a high performance data acquisition.
Each sensor channel employs a 24-bit analog-to-digital
converter. Scan rates up to 2000 updates per second are
available for simultaneous reading of all sensor inputs.
A combination of analog and flexible Finite Impulse
Response (FIR) filters are available to provide adequate
anti-alias filtering at all scanning rates. Each scanner
module has high-capacity non-volatile data storage
capability. Electronically selectable bridge completion
resistors allow the user to choose between 120, 350, and
1000 Ohm strain gages through software selection.
Several design features are provided to reduce total cost
of ownership. System 7000 is capable of self-calibration
with a removable calibration reference (7100-SM-VC).
Calibration can be performed anywhere and there is
no need to return the entire system to the factory for
calibration. Downtime while waiting for calibration is
essentially eliminated. Input connectors are RJ45 type
(except for the TC card) and assembly time is fast using
simple cable crimping tools. Individual scanners can be
separated and located near sensors to reduce sensor
signal loss and cabling costs.
For technical questions, contact
mm@vpgsensors.com
www.micro-measurements.com
2
11992-EN
Rev 09-Dec-2020
System 7100
System 7100 – Data Acquisition System
MODEL 7100-128-SM - 128-CHANNELS SCANNER SPECIFICATIONS
Model 7100-128-SM Scanner houses and retains up to 16 input cards, regulates power
to the cards, establishes and maintains communication between the Ethernet interface
and the input cards, synchronizes the analog-to-digital converters in the system, and
provides visual status information to the operator.
Parameter
Value
Capacity Up to 16 Input Cards, 8 channels each, maximum 128 channels per scanner
Installation Rack-mount (19-inch) or bench-top
Front panel Incorporates power switch and four status LEDs
Input Power 11-32 VDC, 40A max.
Power Indication Green LED (illuminated when power is on)
Ethernet Interface 802.3z Gigabit Ethernet
Processor Cortex-A8, 32 bit, RISC
Memory 512MB DDR3
System Synchronization
Connections Sync In, Sync Out
Topology Daisy-chain
Cable Connection RJ45, Category 5
Max. Distance 100 ft (30m) between scanners
System Calibration Reference Firmware-controlled
Drift 1.9 ppm/°C ±0.6 V/°C typical, 9.4 ppm/°C ±2.1 V/°C maximum
Resolution 150 V nominal
Voltage Range ±5V
Dimensions 9.25 H x 17.3 W x 13.8 D inches (235 x 440 x 351 mm)
Weight 18.2 lb (8.25 kg)