8 Channel Thermalcouples Signal a-D Converter Data Acquisition

The model selection of SYAD08T series is just initial type of thermocouple which supports by the module. User can change the types of thermocouple by re-configurating the module through ASCII character command, then calibrate it.
SYAD08T series modules support both RS232 and RS485 communication interface. User can choose the communication interface according to the application environment, and at the same time only one interface works,otherwise it may interference with each other.

Themalcouple A-D Converter Technical Parameter:

(typical @ +25ºC,Vs is rated value)

Input: Thermocouple: J type: 0ºC~760ºC,K type: 0ºC~1000ºC,T type:-100ºC~400ºC,

     E type:0ºC~1000ºC,R type: 500ºC~1750ºC,S type:500ºC~1750ºC,B type: 500ºC~1800ºC

     (Input type can be set through software)

Accuracy: @+25ºC as shown in Table 1.

Input Imbalance: ±0.02 uV/ºC

Temperature Drift: ±1 ppm/ºC(±3 ppm/ºC, Max.)

Input Resistance: 100 M Ω

Band width: thermocouple   -3 dB 3.27 Hz

Switching rate: thermocouple    3.76 Sps

Common mode restraint (CMR): 120 dB(1kΩ Source Imbalance @ 50/60 Hz)

Normal mode restraint (NMR):  60 dB (1kΩ Source Imbalance @ 50/60 Hz)

Input terminal protection: 240Vrms, sustainable

                        ANSI/IEEE C37.90.1-1989 transient protection