We are announcing the release of the new DSI adapters:

  • DSI-TH-E: Thermocouple type E adapter for temperature measurement
  • DSI-5A: Revised current measurement adapter up to 5A

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-TH-E - Thermocouple Type E Adapter for Temperature Measurement

DSI-TH-E is the latest edition to the DSI® thermocouple adapters product range. DSI-TH-E is designed for type E thermocouple.

DSI Thermocouple Type E adapter for temperature measurement

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.

Host amplifier configuration and calibration coefficients can be read via TEDS.

Host Amplifier Compatibility and Specs

DSI-TH-E for thermocouple type E (DIN EN 60584-1)
DAQ hardware SIRIUS LV
SIRIUS STG
SIRIUS HD-STGS
SIRIUSi XHS-LV
KRYPTONi STG
IOLITE STG
SIRIUS STGM
MINITAURs
DEWE-43A
SIRIUSi HD-LV
SIRIUSi HS-LV SIRIUSi HS-STG SIRIUSi MULTI
Input Range Actual reading   Typical accuracy [maximum accuracy]
-270 to 1000 °C -250 to -200 °C ±2.3 [±10.2] °C ±6.5 [±11.8] °C ±3.2 [±10.2] °C ±5.8 [±10.2] °C ±1.7 [±11.8] °C ±1.7 [±5.6] °C ±3.2 [±19.0] °C
-200 to -100 °C ±1.5 [±5.0] °C ±3.4 [±5.6] °C ±1.9 [±5.0] °C ±3.1 [±5.0] °C ±1.3 [±5.6] °C ±1.3 [±3.0] °C ±1.9 [±8.7] °C
-100 to 0 °C ±1.3 [±3.2] °C ±2.3 [±3.6] °C ±1.5 [±3.2] °C ±2.1 [±3.2] °C ±1.1 [±3.6] °C ±1.1 [±2.1] °C ±1.5 [±5.4] °C
0 to 500 °C ±1.3 [±2.4] °C ±1.9 [±2.6] °C ±1.4 [±2.4] °C ±1.8 [±2.4] °C ±1.2 [±2.6] °C ±1.2 [±1.7] °C ±1.4 [±3.7] °C
500 to 1000 °C ±1.6 [±2.8] °C ±2.1 [±2.9] °C ±1.8 [±2.8] °C ±2.2 [±2.8] °C ±1.4 [±2.9] °C ±1.4 [±2.0] °C ±1.8 [±4.2] °C

DSI-5A - Current Measurement Adapter

Same on the outside, new on the inside. DSI-5A v2 is the new version of DSI® adapters allowing current measurements up to 5 A.

DSI-5A current shunt adapter

The motivation for the new version was the discontinuation of the shunt resistor.
DSI-5A v2 still contains a 10 mΩ shunt resistor with 0.1% accuracy when calibrated. 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).

Input connector of the DSI-5A adapter is the same 3-pin screw terminal where you can connect wires with the nominal cross-section up to 2.5 mm². 

Host amplifier configuration and calibration coefficients can be read via TEDS.

DSI-5A Connector Pinout

Pin Name Description
1 IN + Current Input -
2 IN - Current Input +
3 GND Analog ground