Reference Manual
00809-0100-4828, Rev EA
November 2007
Rosemount 1595
www.rosemount.com
Appendix A
Reference Data
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-4
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-7
SPECIFICATIONS
The Rosemount 1595 can be used with Rosemount 1496 Orifice Flange
Unions and Rosemount 1497 Meter Sections. For product offering see
document number 00813-0100-4792.
Performance
Specifications
Flow Coefficient Uncertainty
Sizing
Perform a flow calculation using the Instrument Toolkit
™
software package.
Alternatively, contact an Emerson Process Management representative. The
“Configuration Data Sheet (CDS)” is required prior to order for application
verification.
Straight Pipe Requirement
Use the appropriate lengths of straight pipe upstream and downstream of the
1595 to minimize the effects of moderate flow disturbances in the pipe.
Table A-2 lists recommended lengths of straight pipe.
Pressure Tap Orientation
Orient the 1595 Conditioning Orifice Plate so that the pressure taps are
centered between any 2 (of 4) orifice bore holes. In addition, the pressure
taps should be located at 90° to the plane of the last elbow.
Table A-1. Discharge Coefficient Uncertainty
Beta Ratio
(1)
(1) For 0.65 beta and ReD< 10,000 add an additional 0.5% to the
Discharge Coefficient Uncertainty.
Cd Uncertainty
β
= 0.20
±0.50%
β
= 0.40
±0.50%
β
= 0.65
±1.00%
Table A-2. 1595 Straight Pipe Requirements
(1)
(1) Consult an Emerson Process Management representative if disturbance is not listed.
Beta
0.20
0.40
0.65
Up
stream (inlet)
side of primary
Single 90° bend or tee
2
2
2
Two or more 90 ° bends in the same plane
2
2
2
Two or more 90° bends in different plane
2
2
2
Up to 10° of swirl
(2)
(2) Not applicable in line sizes greater than 24-in. (600 mm).
2
2
2
Reducer (1 line size)
(2)
2
2
2
Butterfly valve (75% to 100% open)
(2)
2
2
N/A
Downstream (outlet) side of primary
2
2
2
Содержание Rosemount 1595
Страница 2: ......
Страница 4: ......
Страница 6: ...Reference Manual 00809 0100 4828 Rev EA November 2007 Rosemount 1595 TOC 2 ...
Страница 8: ...Reference Manual 00809 0100 4828 Rev EA November 2007 Rosemount 1595 1 2 ...
Страница 18: ...Reference Manual 00809 0100 4828 Rev EA November 2007 Rosemount 1595 2 10 ...
Страница 19: ...Reference Manual 00809 0100 4828 Rev EA November 2007 Rosemount 1595 2 11 ...
Страница 20: ...Reference Manual 00809 0100 4828 Rev EA November 2007 Rosemount 1595 2 12 ...
Страница 30: ...Reference Manual 00809 0100 4828 Rev EA November 2007 Rosemount 1595 B 2 ...
Страница 31: ......
