Emerson Rosemount 248 Reference Manual page 12

Configuration
April 2024
Figure 2-4: Thermocouple Lead Wire Configurations
A. Single thermocouple, 2-wire
B. Dual thermocouple, 4-wire
Type
J
K
T
Note
Dual thermocouple sensors are shipped with one pair of the wires shrink-wrapped
together.
2.2.1 Sensor leads
WARNING
If the sensor is installed in a high-voltage environment and a fault condition or installation
error occurs, the sensor leads and transmitter terminals could carry lethal voltages. Use
extreme caution when making contact with the leads and terminals.
To wire the sensor and supply power to the transmitter:
Procedure
1. Remove the power module cover (if applicable).
2. Remove the transmitter enclosure cover (if applicable).
3. Remove the LCD display (if applicable).
4. Loosen the captive screws and remove LCD adapter plate (if applicable).
5. Attach the sensor leads according to
6. Reattach and secure LCD adapter plate to 5 in-lbs of torque (if applicable).
12
IEC 60584 thermocouple colors
POS (+) NEG (-)
Black White
Green White
Brown White
ASTM E- 230 thermocouple colors
POS (+)
White
Yellow
Blue
Figure 2-1.
Emerson.com/Rosemount
Reference Manual
00809-0100-4248
NEG (-)
Red
Red
Red