Monday, February 27, 2023 · 0 min read
New DSI Adapters: Universal Thermocouple, Waterproof Current Shunt, and IEPE Adapters
Dewesoft is introducing 3 new DSI adapters compatible with Dewesoft data acquisition systems:
DSI-TH-UNI: Universal thermocouple adapter
DSI-ACC-0.16Hz-20mA: IEPE/ICP adapter
DSIw-20mA: Waterproof IP67 current shunt adapter
DSI-TH-UNI: universal thermocouple adapter
This new DSI adapter for thermocouple sensors features a universal thermocouple input. It allows it to connect practically any type of thermocouple sensors - K, J, T, R, S, N, E, B, C.
DSI-TH-UNI has integrated cold junction compensation with CJC accuracy of 0.5 °C.
Universal thermocouple DSI adapter comes in an attractive compact chassis-mounted directly on the host amplifier without any additional cable.
Host amplifier configuration and calibration coefficients can be read via the TEDS sensor interface.
| General specifications | |
|---|---|
| Sensor connector | Mini thermocouple, female |
| Thermocouple Types | K, J, T, R, S, N, E, B, C |
| Cold junction compensation | Integrated |
| CJC accuracy | 0.5 °C |
| Input impedance | > 10 MΩ |
| BIAS current | 50 nA |
| Open TC detection | YES |
| Linearisation | Through software according to the sensor type |
| TEDS | For adapter identification and calibration data |
| Dimensions | 52 x 31 x 15 mm (61 x 31 x 15 mm with screws) |
| Weight | 40 g |
DSI-ACC-0.16Hz-20mA: IEPE/ICP® adapter
DSI-ACC-0.16Hz-20mA is the new DSI adapter for IEPE/ICP® signal inputs.
The adapter combines features of existing DSI-ACC adapters with an increased time constant (𝜏 = 1 s, high-pass filter 0.16 Hz) and sensor excitation (20 mA).
DSI-ACC-0.16Hz-20mA is supported only with the following host amplifiers: SIRIUS LV/LV+, STG/STG+, HS-LV/HS-LV+, HS-STG/HS-STG+.
| Inputs specifications | |
|---|---|
| Sensor connector | BNC |
| Supported sensors | IEPE / ICP |
| Amplifier settings | Automatically selected by software- Measurement: Voltage- Range: ±0.1 V to ±10 V- Excitation: 10 V |
| Adapter specification | |
|---|---|
| Sensor excitation | 20 mA ±15 % |
| Compliance voltage | > 20 Volt |
| Accuracy 30 Hz to 30 kHz | 0.07 % |
| High pass filter | 0.16 Hz |
| Power consumption | 800 mW |
| Supported Amplifiers (exceptions) | Only on: SIRIUS LV/LV+, STG/STG+, HS-LV/HS-LV+, HS-STG/HS-STG+ |
| Gain drift | 50 ppm/°C |
| Max. input offset | 12 mV |
| Input impedance | 1 MΩ |
| Supply voltage | ±5 V (±1 %) |
| Input configuration | Isolated (max. 350 VDC) when using with isolated SIRIUSi modules, else single-ended |
| Bandwidth | up to 500 kHz (limited by the bandwidth of host amplifier) |
| Low-pass filter | 10 Hz to 100 kHz (depending on host amplifier) |
| Ranges | 100 mV, 1000 mV, 10000 mV (SIRIUS-HS series offers more ranges) |
| Typical SNR @ 30 kHz bandwidth | |
|---|---|
| 10000 mV | up to 125 dB (limited by the SNR of the host amplifier) |
| 1000 mV | up to 110 dB (limited by the SNR of the host amplifier) |
DSIw-20mA: waterproof IP67 current shunt adapter
DSIw-20mA is a waterproof DSI adapter for current measurement with up to 20mA.
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).
This is a product made for sensing current from industrial sensors with 4-20 mA output in harsh environments. It is designed with a double DSUB9 adapter hood (IP67 rating).
DSIw-20mA is suited for mounting on a SIRIUSwe or KRYPTON STG.
| Inputs specifications | |
|---|---|
| Input connector type | Waterproof DSUB9 female connector |
| Input range | 20 mA |
| Shunt Resistor | 50 Ω, Metal Foil |
| Input accuracy | Calibrated to ±0.01 %, calibration in TEDS(uncalibrated ±0.05 %) |
| Temperature Coefficient | ±0.05 ppm/°C typical (0 °C to +60 °C)±0.2 ppm/°C typical (-55 °C to +125 °C) |
| Power Rating | 250 mW (do NOT exceed maximum rating!) |
| TEDS | 1024-bit, 1-Wire EEPROM |
| Environmental rating | IP67 |
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