Emerson Rosemount 3144P - Wiring Diagram

Specifications and Reference Data
185
Specifications and Reference Data
April 2017
Reference Manual
00809-0100-4021, Rev JA
Total probable error

Rosemount X-well temperature effects
example
When using Rosemount X-well Technology at 30 °C
ambient temperature and 100 °C process temperature:
 Digital ambient temperature effects:
0.0058 °C x (30 – 20) =.058 °C
 Process temperature effects: 0.01 °C x (100 – 30) =.70 °C
 Worst case error: Digital accuracy + Digital ambient
temperature effects + Process temperature effects =
0.29 °C + 0.058 °C+ 0.70 °C = 1.05 °C
 Total probable error: = 0.76 °C
A.2 HART/4–20 mA
specifications
Power supply
External power supply is required. Transmitters operate on
12.0 to 42.4 Vdc transmitter terminal voltage (with
250 ohm load, 18.1 Vdc power supply voltage is required).
Transmitter power terminals are rated to 42.4 Vdc.
Wiring diagram
See Figure A-8 on page 193.
Alarms
Custom factory configurations of alarm and saturation
levels are available for valid values with option code C1.
These values can also be configured in the field using a Field
Communicator.
Transient protection (option code T1)
The transient protector helps prevent damage to the
transmitter from transients induced on the loop wiring by
lightning, welding, heavy electrical equipment, or switch
gears. The transient protection electronics are contained in
an add-on assembly that attaches to the standard
transmitter terminal block. The external ground lug
assembly (code G1) is included with the transient protector.
The transient protector has been tested per the following
standard:
 IEEE C62.41-1991 (IEEE 587)/location categories B3.
6 kV/3 kA peak (1.2  50 μS wave 8  20 μS combination
wave)
6 kV/0.5 kA peak (100 kHz ring wave)
EFT, 4 kV peak, 2.5 kHz, 5  50 nS
 Loop resistance added by protector: 22 ohms max.
 Nominal clamping voltages: 90 V (common mode), 77 V
(normal mode)
LCD display
Optional five-digit LCD display includes 0–100 percent bar
graph. Digits are 0.4-in. (8 mm) high. Display options
include engineering units (°F, °C, °R, K, ohms, and millivolts),
percent, and milliamperes. The display can also be set to
alternate between engineering units/milliamperes, sensor
1/sensor 2, sensor 1/sensor 2/differential temperature, and
sensor 1/sensor 2/average temperature. All display options,
including the decimal point, may be reconfigured in the
field using a Field Communicator or AMS Device Manager.
Turn-on time
Specification performance is achieved less than six seconds
after power is applied to the transmitter when the damping
value is set to 0 seconds.
Power supply effect
Less than ±0.005% of span per volt.
0.10
2
0.02
2
+ 0.015
2
0.01
2
++ 0.10 °C=
0.29
2
0.058
2
0.70
2
++