43
Specifications and Reference Data
Specifications and Reference Data
October 2016
Reference Manual
00809-0100-4808, Rev DA
A.2.5 Static pressure effect
Rosemount 3051ND
Rosemount 3051ND
A.2.6 Power supply effect
Less than ±0.005% of calibrated span per volt for RDF
10
A.2.7 Load effect
No load effect other than change in voltage supplied to the
transmitter
A.2.8 Mounting position effect
Rosemount 3051ND/NG
Zero shifts up to ±1.25 in H
2
0 (0,31 KPa), which can be calibrated
out; no span effect
Rosemount 3051NA
Zero shifts up to 2.5 in H
2
0 (63,5 mm), which can be calibrated
out; no span effect
A.3 Functional specifications
A.3.1 Service
Liquid, gas, or vapor
A.3.2 Output
4–20 mA, user-selectable for linear or square root output; digital
signal based on HART
®
Protocol
A.3.3 Power supply
Load limitations
Maximum loop resistance is determined by the voltage level of the
external power supply, as described by:
A.3.4 Temperature limits
Ambient
0 to 185 °F (-18 to 85 °C)
with meter option:
0 to 175 °F (-18 to 80 °C)
Process
(1)(2)(3)
0 to 250 °F (-18 to 121 °C) coplanar flange
0 to 300 °F (-18 to 149 °C) traditional flange
Storage
0 to 212 °F (-18 to 100 °C)
with meter option:
0 to 185 °F (-18 to 85 °C)
Zero Error (can be calibrated out at line pressure) Per 1000 psi
(6,9 MPa) line pressure
Range code Static pressure zero effect
(1)
1. Ps equals static line pressure applied.
0
(2)
2. Specification for Rosemount 3051N Range 0 is expressed in (% per
100 psi [689 KPa]).
± 0.125% URL for Ps
750 psi (5,2 MPa)
1
± 0.25% URL for Ps
2000 psi (13,8 MPa)
2, 3
± 0.05% URL for Ps
2000 psi (13,8 MPa)
± [0.1 + 0.1 (Ps-2000) / 1000]% URL for
Ps > 2000 psi (13,8 MPa)
3626 psi (25 MPa)
4, 5
± 0.1% URL for Ps
2000 psi (13,8 MPa)
± [0.2 + 0.2 (Ps-2000) / 1000]% URL
for Ps > 2000 psi (13,8 MPa)
3626 psi (25 MPa)
Span Error Per 1000 psi (6,9 MPa) line pressure
Range code Static pressure span effect
0
(1)
1. Specification for Rosemount 3051N Range 0 is expressed in [% per
100 psi (689 KPa)] up to 750 psi (5 171 KPa).
± 0.15% input reading
1
± 0.40% input reading
2, 3
± 0.10% input reading
4, 5
± 0.20% input reading (uncertainty after
calibration correction for systematic effects)
1.
Process temperatures above 185 °F (85 °C) require derating the ambient tem-
perature limits by 1.5 °F per degree above 185 °F.
2.
220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures below 0.5
psia
3.
EPR O-ring is limited to 150 °F (66 °C) process temperature.
Communication requires a minimum loop resistance of 250 ohms.
Max. Loop Resistance = 43.5 (Power Supply Voltage – 10.5) ohms
0
500
1000
1500
1935
10.5
20
30
40
55
L
oad (ohms)
Voltage (V dc)
Design
Region