Item

Specification

Analog Sensor

Up to 8/4 Channel Thermocouples(Type J,K or JIS 1602-1981)

Unit Type

Centigrade

Fahrenheit

Range

K Type

-270~+1370

-454~+2498

J Type

-210~+1200

-346~+2192

Digital Output Range

200000 Reading

Resolution

0.1

0.18

Overall Accuracy

+/-0.3% of full scale(compensated range)

Conversion Speed

The period of conversion is 0.5 sec.~2sec.(According to the NO.of channels is in use at the same group;CH 1~4 are a group ,CH 5~8 are another group)

Isolation Method

1.      The VB-8T/VB-4T has 2/1 group analog input circuit(s).Each group supports 4 channels thermocouple inputs and has its own isolation DC/DC power converter

2.      Photocoupler isolation between 2 analog circuit groups and digital circuits

3.      No isolation between analog channels in the same group

Power Consumption

VB-8T

DC 24V,-10%~+5%;70mA(Max)

VB-4T

DC 24V,-10%~+5%;45mA(Max)