Emerson Rosemount User Manual

42
Reference Manual
00809-0100-4021, Rev GC
Section 3: HART commissioning
April 2014
HART® commissioning
 –10 to 100 millivolts
 2-, 3-, or 4-wire 0 to 2000 ohms
Contact an Emerson
®
Process Management representative for information on temperature
sensors, thermowells, and accessory mounting hardware that is available through Emerson.
3.7.4 Output units
The Snsr 1 Unit and Snsr 2 Unit commands set the desired primary variable units. The transmitter
output can be set to one of the following engineering units:
 Degrees Celsius
 Degrees Fahrenheit
 Degrees Rankine
 Kelvin
 Ohms
 Millivolts
3.7.5 Sensor 1 serial number
The serial number of the attached sensor can be listed in the Sensor 1 S/N variable. It is useful for
identifying sensors and tracking sensor calibration information.
3.7.6 Sensor 2 serial number
The serial number of a second sensor can be listed in the Sensor 2 S/N variable.
3.7.7 2-wire RTD offset
The 2-wire Offset command allows the measured lead wire resistance to be input, which results
in the transmitter adjusting its temperature measurement to correct the error caused by this
resistance. Because of a lack of lead wire compensation within the RTD, temperature
measurements made with a 2-wire RTD are often inaccurate.
HART 5 Fast Keys
Sensor 1: 2, 2, 1, 4
Sensor 2: 2, 2, 2, 4
HART 7 Fast Keys
Sensor 1: 2, 2, 1, 5
Sensor 2: 2, 2, 2, 5
HART 5 Fast Keys
2, 2, 1, 7
HART 7 Fast Keys
2, 2, 1, 8
HART 5 Fast Keys
2, 2, 2, 7
HART 7 Fast Keys
2, 2, 2, 8
HART 5 Fast Keys
Sensor 1: 2, 2, 1, 5
Sensor 2: 2, 2, 2, 5
HART 7 Fast Keys
Sensor 1: 2, 2, 1, 6
Sensor 2: 2, 2, 2, 6

Emerson Rosemount Specifications

General

Category	Industrial Equipment
Manufacturer	Emerson
Product Type	Pressure Transmitter
Output Signal	4-20 mA HART, FOUNDATION Fieldbus
Process Connection	1/2" NPT, 1/4" NPT
Electrical Connection	1/2" NPT
Operating Temperature	-40°C to 85°C (-40°F to 185°F)
Environmental Rating	NEMA 4X, IP66