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MTS FlexDAC 20 Data Acquisition Systems

Acquire high-fidelity test data from bridge-based devices such as strain gages and load cells, and high-level devices such as accelerometers and thermocouples. Fast acquisition speeds, high-channel-count capabilities and synchronization with FlexTest controllers make MTS FlexDAC data acquisition units ideal for evaluating the behavior of full-scale and component structures under load.

KEY PRODUCT FEATURES

Integrated / Synchronized

Employs hardware-based clock synchronization with FlexTest controllers to yield extremely high data accuracy

Versatile

Can distribute data acquisition channels in any proportion across multiple test stations simultaneously

Accelerated Testing

Eliminates the need to synthesize data manually after testing, improving productivity

Accurate / Repeatable

Automated calibration quickly verifies and documents measurement accuracy

MODEL COMPARISON

TECHNICAL OVERVIEW

 

48-channel Unit

General Functionality

 

Total inputs per chassis

48

Maximum number of channels per system

15360

Input connector

RJ-45

Synchronization with control system

Hardware synchronized A/D conversion between all channels in all chassis and FlexTest 40/60/100/200 controllers or timestamp

A/D converters

24-bits per channel

Independent stations

Up to 4, any channel in any chassis

Independent acquisition rate groups

2 per station (up to 8 total)

Supported sensors

1/4 bridge, 1/2 bridge and full bridge strain gages, load cells, analog temposonics, string potentiometers and voltage input +/- 11mV, +/-110mV, +/-1.1V, +/- 11V

Integration with other vendors

Yes

Network connection

10/100 Base-T Ethernet

Size

48.26 cm W x 13.21 cm H x 55.5 cm L (19” x 5.2” x 21.85”)

Weight

7.76 kg (17.1 lb)

Power and Environmental Specifications

 

Power

100 - 240 V AC, 50/60 Hz @ 250 VA max

Ambient temperature

0° - 55° C (32 - 131° F)

Relative humidity

0 - 85%, non-condensing

Altitude

Up to 3,048 m (10,000 ft)

Certifications

CE, EN 61326, EN 61010

Electrical Specifications

 

Excitation

0.5 V, 1 V, 2 V, 5 V, 7.5 V, 10 V

Maximum current

70 mA, over current protected

Gains

x1, x10, x100, x1000, set on a per-channel basis

Temperature shift

± 0.1% over temperature range

Sampling rate

1 Hz to 6 kHz, user selectable on a per channel basis in up to 8 acquisition groups

Shunt resistors

One per channel, externally installed on front of chassis, value specified at time of order

Resistor connection

Software activated per channel, shunts across local bridge completion resistor for 1/4 bridge or remote for 1/2, full bridge

Back half resistor network

1k/1k (0.05% ratio matching, 2 ppm/°C)

Synchronization cable maximum lengths

300 m between MTS FlexDAC chassis and FlexTest controller, 100 m between MTS FlexDAC chassis

Synchronization chain restrictions

160 FlexDAC chassis (7,680 channels) per chain, 2 chains

per FlexTest controller

Synchronization chain media

Cat5e Ethernet cable

Synchronization limitations

Hot plugging allowed, auto master/slave detect, no cabling restrictions for acquisition groups

Performance

 

FIFO data buffering

75 MB

Tare

Available for all channels

Event/action

Through AeroPro software

Limit detection

Through AeroPro software

Conditioning

 

1/4 bridge completion

Standard 3-wire

1/4 bridge completion resistance

120 Ω, 350 Ω, optional user-specified (0.05%), set on a per-channel basis

1/2 bridge completion

6-wire configuration

Full bridge completion

7-wire configuration

Bridge type and completion restrictions

No restrictions, each channel individually configurable

Excitation restrictions

No restrictions, the excitation voltage is uniquely programmed for each channel

Filters

Bessel, Butterworth, Elliptical, Adjustable pass band (1 kHz max), no filter

Filtering

Analog anti-aliasing filter with digital low-pass filter set on a per-channel basis

Filter frequencies

Customer definable through AeroPro software to 1 kHz

Filtering restrictions

No restrictions

Lead wire resistance

Lead wire compensation is available for 3 wire ¼ bridge sensors. Remote excitation sensing for ½ and full bridge sensors.

High strain nonlinearity

Yes

Features

 

Modularity

All units can stand alone or be combined with other units, from the same or different manufacturers

LEDs

Green LED for software controlled connection identification, yellow LED for excitation over current indication

Transducer Electronic Data Sheets (TEDS)

Supports IEEE 1451 class 2 interface

Digital I/O

“SMART DIO” enables any analog channel to be configured as a digital IO channel

 

64-channel Unit

General Functionality

 

Total inputs per chassis

64

Maximum number of channels per system

20480

Input connector

RJ-45

Synchronization with control system

Hardware synchronized A/D conversion between all channels in all chassis and FlexTest 40/60/100/200 controllers or timestamp

A/D converters

24-bits per channel

Independent stations

Up to 4, any channel in any chassis

Independent acquisition rate groups

2 per station (up to 8 total)

Supported sensors

1/4 bridge, 1/2 bridge and full bridge strain gages, load cells, analog temposonics, string potentiometers and voltage input +/- 11mV, +/-110mV, +/-1.1V, +/- 11V

Integration with other vendors

Yes

Network connection

10/100 Base-T Ethernet

Size

48.26 cm W x 13.21 cm H x 55.5 cm L (19” x 5.2” x 21.85”)

Weight

7.76 kg (17.1 lb)

Power and Environmental Specifications

 

Power

100 - 240 V AC, 50/60 Hz @ 250 VA max

Ambient temperature

0° - 55° C (32 - 131° F)

Relative humidity

0 - 85%, non-condensing

Altitude

Up to 3,048 m (10,000 ft)

Certifications

CE, EN 61326, EN 61010

Electrical Specifications

 

Excitation

0.5 V, 1 V, 2 V, 5 V, 7.5 V, 10 V

Maximum current

50 mA, over current protected

Gains

x1, x10, x100, x1000, set on a per-channel basis

Temperature shift

± 0.1% over temperature range

Sampling rate

1 Hz to 6 kHz, user selectable on a per channel basis in up to 8 acquisition groups

Shunt resistors

One per channel, externally installed on front of chassis, value specified at time of order

Resistor connection

Software activated per channel, shunts across local bridge completion resistor for 1/4 bridge or remote for 1/2, full bridge

Back half resistor network

1k/1k (0.05% ratio matching, 2 ppm/°C)

Synchronization cable maximum lengths

300 m between MTS FlexDAC chassis and FlexTest controller, 100 m between MTS FlexDAC chassis

Synchronization chain restrictions

160 FlexDAC chassis (10,240 channels) per chain, 2 chains per FlexTest controller

Synchronization chain media

Cat5e Ethernet cable

Synchronization limitations

Hot plugging allowed, auto master/slave detect, no cabling restrictions for acquisition groups

Performance

 

FIFO data buffering

75 MB

Tare

Available for all channels

Event/action

Through AeroPro software

Limit detection

Through AeroPro software

Conditioning

 

1/4 bridge completion

Standard 3-wire

1/4 bridge completion resistance

120 Ω, 350 Ω, optional user-specified (0.05%), set on a per-channel basis

1/2 bridge completion

4-wire configuration

Full bridge completion

5-wire configuration

Bridge type and completion restrictions

No restrictions, each channel individually configurable

Excitation restrictions

No restrictions, the excitation voltage is uniquely programmed for each channel

Filters

Bessel, Butterworth, Elliptical, Adjustable pass band (1 kHz max), no filter

Filtering

Analog anti-aliasing filter with digital low-pass filter set on a per-channel basis

Filter frequencies

Customer definable through AeroPro software to 1 kHz

Filtering restrictions

No restrictions

Lead wire resistance

Lead wire compensation is available for 3 wire ¼ bridge sensors.

High strain nonlinearity

Yes

Features

 

Modularity

All units can stand alone or be combined with other units, from the same or different manufacturers

LEDs

Green LED for software controlled connection identification, yellow LED for excitation over current indication

Transducer Electronic Data Sheets (TEDS)

Supports IEEE 1451 class 2 interface

Digital I/O

“SMART DIO” enables any analog channel to be configured as a digital IO channel