©
National Instruments Corporation
17
BNC/TC-2095 Rack-Mount Adapter Installation Guide
Specifications
All specifications are typical at 25 °C, unless otherwise specified.
Electrical
Cold-junction sensor (TC-2095 Only)
Accuracy
1
........................................ 0.65° from 15 to 35 °C
1.0° from 0 to 15 °C
and 35 to 55 °C
Repeatability ................................... 0.35°
from 15 to 35 °C
Output ............................................. 1.91 (at 0 °C) to 0.58 VDC
(at 55 °C)
Open-thermocouple detection
Pull-up resistor ................................ 10 M
Ω
Ground-referencing resistor ............ 10
Ω
default or 10 M
Ω
Physical
Dimensions ..................................... 48.3 cm by 4.4 cm by 19.0 cm
(19.0 in. by 1.7 in. by 7.7 in.)
Maximum Working Voltage
Maximum working voltage
( common mode) ....................... Each input should remain
within ±10 VDC of chassis
ground
Environmental
Operating temperature............................ 0 to 50 °C
Storage temperature ............................... –20 to 70 °C
Humidity ................................................ 10 to 90% RH, noncondensing
Maximum altitude .................................. 2,000 m
Pollution Degree (indoor use only) ........ 2
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 effect caused
by temperature and loading, and self-heating.
