DSI Adapters
Dewesoft Sensor Interface


DSI adapters are TEDS IEEE 1451.4 equipped sensor adapters that turn any of our DSUB9 universal analog input amplifiers into direct IEPE, charge, thermocouple, shunt, voltage, LVDT, or RTD input.

DSI adapters (Dewesoft Smart Sensor Interface) are compatible with all Dewesoft host signal amplifiers with DSUB9 connectors.

TEDS compatible
TEDS compatible

Main Features

  • EXTEND ANALOG INPUTS: DSI adapters are compatible with any Dewesoft host signal amplifier with DSUB9 analog input, independent of the product family. They will fit the SIRIUS DAQ system, KRYPTON DAQ modules, MINITAURsIOLITE​​​​​​​, or DEWE-43 DAQ instrument.
  • PLUG-AND-PLAY WITH TEDS SENSOR SUPPORT: All DSI adapters have a TEDS chip built-in for automatic sensor detection and plug-and-play setup. Just connect the sensor to the DSI adapter and DSI adapter to one of our DSUB-9 analog inputs and everything from scaling, units, calibration data, etc. will be configured automatically.  
  • COMPACT AND RUGGED: All electronics are built into small and rugged DSUB-9 aluminum housing with screw connectors to firmly screw adapters to the analog input channel. 
  • DEWESOFT QUALITY: Enjoy Dewesoft’s industry-leading 7-year warranty and world-class quality assurance. Your investment into the Dewesoft modal testing and analysis solution is protected.

DSI - Dewesoft Smart Interface

The versatile Dewesoft DSI® adapters convert any Dewesoft's DAQ system analog input amplifiers with DSUB9 connector into a universal analog input that can accept everything from strain gage, IEPE/ICP, thermocouple, LVDT, RTD, current to voltage signals with up to ±200V. 

DSI adapters are automatically recognized by the TEDS sensor chip (IEEE 1451.4) and all settings are configured automatically inside Dewesoft X DAQ software.

DSI - Dewesoft Smart Interface

IEPE Adapters For Piezoelectric Sensors

DSI-ACC class of DSI adapters are adapters for IEPE (Integrated Electronics Piezo Electric) sensors like accelerometers and microphones. A sensor connected to the adapter will be automatically recognized using TEDS technology

There are three versions of DSI-ACC adapters available:

  • DSI-ACC - excitation current 4 mA, 21 V, and high pass filter 0.8 Hz.
  • DSI-ACC-0.16Hz - excitation current 4 mA, 21 V and high pass filter 0,16 Hz.
  • DSI-ACC-20mA - excitation current 20 mA, 21 V and high pass filter 0.8 Hz.
  • DSI-ACC-0.16Hz-20mA - combines features of the DSI-ACC-0.16Hz and DSI-ACC-0.16Hz-20mA with an increased time constant (𝜏 = 1 s, high-pass filter 0.16 Hz) and sensor excitation (20 mA).
IEPE Adapters For Piezoelectric Sensors

Charge Sensor Adapters

DSI-CHG adapter is intended for charge accelerometer or microphone sensors with BNC connector. The range is up to 50000 pC. AC coupled with 0.07 Hz. Max. 100 kHz bandwidth.

DSI-CHG-DC is an adapter used for the measurements with charge sensors. It has four input ranges from 1 kpC up to 500 kpC. In addition to the DC measurement, users can choose four different hardware high-pass filters in the channel setup of Dewesoft X3 software. 

The main advantage of the DSI-CHG-DC adapter is a large time constant, practically DC charge measurement with DC drift lower than 0.1 pC/s for the 500 kpC input range. The bandwidth of DSI-CHG-DC is 20 kHz for the 500 kpC range and 200 kHz for the 50 kpC range. DSI-CHG-DC is currently supported by all SIRIUS DAQ amplifiers with DSUB9 input connectors and KRYPTON STG amplifiers. Host amplifier configuration and calibration coefficients can be read via TEDS.

Charge sensors can be connected to the DSI-CHG-DC BNC input connector and to the host amplifier using DSUB9 male-female extender cable. The housing includes four holes and two belt clips for easy mounting of the DSI-CHG-DC adapter.

DSI-CHGCharge Sensor Adapters
DSI-CHGCharge Sensor Adapters

Resistance Temperature Detector Adapters

DSI-RTD is a universal adapter for RTD sensors. Two, three, and four-wire connection methods are supported. 5-pin Binder 710 series connector with included Binder cable connector.

Supported RTD types are:

  • Pt100,
  • Pt200,
  • Pt500,
  • Pt1000 and
  • Pt2000.

DSI-RTDResistance Temperature Detector Adapters

Voltage Sensor Adapters

DSI-V-200 voltage adapter will enable any DSUB9 analog input to accept ±200V voltage range, differential input via the BNC connector.

Bandwidth and ranges are defined by the host amplifier where this DSI adapter is connected to.

DSI-VVoltage Sensor Adapters

Thermocouple Sensor Adapters

DSI-TH-x adapters are used for the thermocouple sensor connection. The adapter features high accuracy cold junction reference measurement. A 1 m thermocouple cable is included with a mini TC connector. DSI-TH-x adapters are available for these thermocouple types:

  • DSI-TH-UNI - Universal thermocouple input for connecting any type of thermocouple (K, J, T, R, S, N, E, B, C). Includes integrated cold junction compensation with CJC accuracy of 0.5 °C.
  • DSI-TH-C - Designed for type C thermocouples (W, W3, and W5).
  • DSI-TH-E - Designed for type E thermocouples. Type E thermocouple has the highest sensitivity in terms of mV/K. It is operating in a temperature range between -270 °C and 1000 °C.
  • DSI-TH-J - Designed for type J thermocouples.
  • DSI-TH-K - Designed for type K thermocouples.
  • DSI-TH-T - Designed for type T thermocouples.

The DSI-TXx adapters include a TEDS sensor chip for automatic sensor detection and setting.

DSI-THxThermocouple Sensor Adapters
DSI-THxThermocouple Sensor Adapters

DSI Current Shunts
Current Input Adapters

DSI current shunt adapters are adapters for direct current measurement. We offer different models of the DSI current  shunt adapters:

  • DSI-20mA - 20 mA current input adapter with 50 Ohm internal shunt, 0.01% accuracy when calibrated for sensors with 4 to 20 mA output.
  • DSIw-20mA - Waterproof version of the DSI-20mA adapter. It uses a 50 Ω shunt resistor with 0.01 % accuracy and 0.2 ppm/K temperature drift (0.05 ppm/K in the temperature range 0 °C to 60 °C). It is designed for sensing current from industrial sensors with 4-20 mA output in harsh environments. It is designed with a double DSUB9 adapter hood with IP67 protection.
  • DSI-5A - The new 5A current input adapter. Contains a 10 mΩ shunt resistor with 0.1% accuracy when calibrated. The new DSI-5A adapter has significant improvement is in temperature stability. The new shunt resistor has two times better temperature coefficient (now 15 ppm/K over the range -55 °C to +125 °C, before 30 ppm/K over the range -20 °C to +60 °C).
  • DSIi-10A - isolated current transducer with 10 A FS and < 0.5% accuracy with banana connector inputs.
  • DSIi-20A - isolated current transducer with 20 A FS and < 0.5% accuracy with banana connector inputs.
DSI Current ShuntsCurrent Input Adapters
DSI Current ShuntsCurrent Input Adapters

Adapters For Linear Variable Differential Transformer (LVDT) Sensors

DSI-LVDT is an adapter for connecting LVDT sensors. It generates 4 to 10 kHz excitation for LVDT sensors and includes phase adjustment with a potentiometer. Output 1 V = 1000 mV / V.

See article Measuring Position and Displacement With LVDT Sensors.

DSI-LVDTAdapters For Linear Variable Differential Transformer (LVDT) Sensors

Adapter Box for LVDT Sensors

DS-16xLVDTr uses a unique ratiometric architecture to eliminate several of the disadvantages associated with traditional approaches to LVDT interfacing. DS-16xLVDTr combines 16 channels of DSI-LVDT adapters in a 19”-rack compatible housing with 1U height.

The main advantage of the new design is the asynchronous excitation signal provided from an external function generator to a BNC front connector (IN connector). When using multiple DS-LVDTr devices the EXC signal can be daisy-chained from the BNC OUT connector to the BNC IN connector on the other device.

There are 16 DSUB-9M male connectors on the front panel for the connection to the Dewesoft data acquisition system. Each connector includes a trimmer for phase adjustment.

On the back panel are 16 DSUB-9F (female) connectors for the LVDT sensor connection. DS-16xLVDTr supports measurements with full-bridge and half-bridge LVDT sensor types.

More details about DS-16xLVDTr can be found in the user manual.

See article Measuring Position and Displacement With LVDT Sensors.

DS-16xLVDTrAdapter Box for LVDT Sensors


Are DSI Adapters Compatible With Every Dewesoft DAQ?

Most of the DSI adapters are compatible with all Dewesoft data acquisition host amplifiers with a DB9 connector (DSUB9). Compatibility includes DEWE-43A, MINITAURs, SIRIUS, KRYPTON, IOLITE Rack, IOLITE, IOLITE LX data acquisition systems. Some DSI adapters are excluded from this list and are only compatible with certain host amplifiers. Please refer to DSI technical reference manual for these exceptions.

Are DSI Adapters Included In Dewesoft 7-year Warranty?

YES. The Dewesoft 7-Year warranty applies to all our data acquisition systems and DSI adapters. You buy it, own it, use it, and our warranty keeps you covered. We build our equipment to last. We guarantee you that your hardware will be free from defects and functional. Our warranty covers that the instruments function as promised for a period of 7 years from the day of the delivery.


Do Dewesoft DAQ systems really include free software?

Yes! All Dewesoft data acquisition systems include DewesoftX Professional software for free with no extra charge.
DewesoftX Professional includes advanced features for data storing, visualization, export, and also includes an extensive math library for signal processing.


Do Dewesoft DAQ systems really include lifetime free software updates?

Yes. All the updates to our software are free forever. We release a new major version every two months. All the performance updates, new features, and bug fixes are available for free to all existing Dewesoft users by simply download our installer from the website.


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