SIRIUS®
Storage Temperature -30 °C to +85 °C
Operating Temperature -5 °C to +60 °C
Relative humidity (MIL202): 0 to 95 % at 60 °C, non-condensing
RFI susceptibility ±0.5 % span error at 400 MHz, 5 W, 3 m
Table 36: MSI Environmental Specifications
7.1.3 MSI-TH-x
The MSI-TH-x allows thermocouple temperature measurement with Siriusx modules (also DEWE-43 and
DS-MINITAUR). The common thermocouples types K, J and T are supported. For high temperature application also
type C is supported. A high precision cold junction compensation is included in the adapter.
The non-linearity of the thermocouple is compensated for in software. A TEDS chip (transducer electronic data-sheet)
provides automatic adapter identification by software and the calibration data.
In operation with the isolated SIRIUSi modules you will get fully isolated thermocouple amplifier. In operation with
the differential SIRIUS® modules (or DEWE-43/DS-MINITAUR) only isolated thermocouples should be used, because
the thermocouple input is single ended.
Illustration 190: Basic circuit design of MSI-TH-x
7.1.3.1 MSI-TH-x Specifications
Sensor connection 1 m cable with standard miniature thermocouple connector according to TC type
Thermocouple Types
MSI-TH-K: Type K
MSI-TH-J: Type J
MSI-TH-T: Type T
MSI-TH-C: Type C
Cold junction compensation Integrated
CJC accuracy 1.0°C
Input impedance > 10 MΩ
BIAS current 50nA
Open TC detection Yes
Linearisation Through software according to the sensor type
TEDS For adapter identification and calibration data
Table 37: MSI-TH-x Specifications
Page 138/166 www.dewesoft.com Doc-Version: 1.4.2
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