Physical Specifications - Emerson Rosemount 2051 Reference Manual

Reference Manual
00809-0100-4101
Table A-3: 2051 Process Temperature Limits
(continued)
Propylene Glycol and
Water
(1) Process temperatures above 185 °F (85 °C) require derating the ambient limits by a
1.5:1 ratio.
(2) 220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5 psia.
(3) 160 °F (71 °C) limit in vacuum service.
A.2.7 Humidity Limits
0–100% relative humidity
A.2.8 Volumetric Displacement
Less than 0.005 in
A.2.9 Damping
Analog output response to a step input change is user-selectable from 0 to 25.6 seconds
for one time constant. This software damping is in addition to sensor module response
time.
A.2.10 Failure Mode Alarm
If self-diagnostics detect a sensor or microprocessor failure, the analog signal is driven
either high or low to alert the user. High or low failure mode is user-selectable with
a jumper on the transmitter. The values to which the transmitter drives its output in
failure mode depend on whether it is factory-configured to standard or NAMUR-compliant
operation. The values for each are as follows:
Standard Operation
Output Code
A
M
NAMUR-Compliant Operation
Output Code
A
Output Code F
If self-diagnostics detect a gross transmitter failure, that information gets passed as a
status along with the process variable.
A.3

Physical Specifications

A.3.1 Electrical Connections
1/2–14 NPT, G1/2, and M20 × 1.5 (CM20) conduit.
Reference Manual
0 to 200 °F (–18 to 93 °C)
3 (0,08 cm 3 )
Linear Output Fail High
3.9 ≤ I ≤ 20.8 I ≥ 21.75 mA
0.97 ≤ V ≤ 5.2 V ≥ 5.4 V
Linear Output Fail High
3.8 ≤ I ≤ 20.5 I ≥ 22.5 mA
Fail Low
I ≤ 3.75 mA
V ≤ 0.95V
Fail Low
I ≤ 3.6 mA
Reference Data
March 2024
101