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National Instruments Corporation
7
TBX-68S Isothermal Terminal Block
Specifications
Cold-junction sensor
Accuracy
1
........................................ 0.5° from 15° to 35° C
0.9° from 0° to 15° C
and 35° to 55° C
Repeatability ................................... 0.2° from 15° to 35° C
Output ............................................. 198.54 mV to 19.58 mV
from 0° to 55° C
Compatible DIN rails ............................. DIN EN 50 022
DIN EN 50 035
Dimensions............................................. 12.7 by 11.2 by 7.62 cm
(5.0 by 4.4 by 3.0 in.)
Max voltage
( common mode) ....................... Each input should remain within
30 V
rms
or 60 VDC of ground and
all other channels to eliminate the
possibility of hazardous shock
1
Includes the combined effects of the temperature sensor accuracy and the temperature difference between the temperature
sensor and any screw terminal. The temperature sensor accuracy includes tolerances in all component values, the effects
caused by temperature and loading, and self-heating.
