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Rosemount 485 Annubar, Quick Installation Manual

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Rosemount 485 Annubar Quick Installation Manual Download Page 11

Quick Installation Guide

00825-0100-4809, Rev DB

December 2009

Flanged 485 Annubar

11

S

TEP

 5: I

NSERT

 

THE

 A

NNUBAR

1. Align the flow arrow on the head with the direction of flow. Assemble the bar to the 

mounting flange using a gasket, bolts, and nuts.

2. Tighten the nuts in a cross pattern to allow even compression of the gasket.
3. If opposite side support is threaded, apply an appropriate thread sealing compound to 

the support plug threads and tighten until no leakage occurs.

4. If opposite side support is a socket weld fitting, insert the plug into the sockolet fitting 

until the parts contact. Retract the plug 

1

/

16

-in. (1,6 mm) remove the Annubar sensor and 

apply fillet weld per local codes.

S

TEP

 6: M

OUNT

 

THE

 T

RANSMITTER

Transmitter Mounting, Direct Mount Head with Valves

It is not necessary to retract the Annubar when direct mounting a transmitter with valves.
1. Place PTFE O-rings into grooves on the Annubar head.

2. Align the high side of the transmitter to the high side of the sensor (“Hi” is stamped on the 

side of the head) and install.

3. Tighten the nuts in a cross pattern to 400 in•lb (45 N•m).

Transmitter Mounting with Remote Mount Head

Temperatures in excess of 250 °F (121 °C) at the sensor module diaphragms will damage 

the transmitter. Remote mounted transmitters are connected to the sensor by means of 

impulse piping, which allows process temperatures to decrease to a point where the 

transmitter is no longer vulnerable.
Different impulse piping arrangements are used depending on the process fluid and must be 

rated for continuous operation at the pipeline design pressure and temperature. A minimum 

of 

1

/

2

-in. (12 mm) outer diameter stainless steel tubing with a wall thickness of at least 

0.035-in. (0,9 mm) is recommended including and under 600# ANSI (DN50 PN100). Above 

600# ANSI (DN50 PN100), stainless steel tubing with 

1

/

16

-in. wall thickness.Threaded pipe 

fittings are not recommended because they create voids where air can become entrapped 

and create leakage points. 

0100-4809 Rev DB.fm  Page 11  Wednesday, December 30, 2009  3:57 PM

Summary of Contents for 485 Annubar

Page 1: ...December 2009 Flanged 485 Annubar Step 1 Location and Orientation Step 2 Drill Holes into Pipe Step 3 Assemble and Check Fit up Step 4 Weld Mounting Hardware Step 5 Insert the Annubar Step 6 Mount the Transmitter Product Certifications Start End Rosemount 485 Annubar Flanged Assembly ...

Page 2: ...reference manual document number 00809 0100 4810 for more instruction This manual is also available electronically on www rosemount com If the 485 Annubar was ordered assembled to a Rosemount 3051S transmitter see the following Quick Installation Guide for information on configuration and hazardous locations certifications Rosemount 3051S Series Pressure Transmitter document number 00825 0100 4801...

Page 3: ...aling compound rated for the service temperature on all threaded connections Transmitter Sensor Flange Coplanar Flange with Drain Vents O Rings 2 485 Annubar Sensor Mounting Flange Assembly Direct Mount Transmitter Connection with Valves Studs Gasket Nuts Opposites Side Support Transmitter and housing are shown for clarity purposes only supplied if ordered ...

Page 4: ...st be met for accurate and repeatable flow measurements Refer to Table 1 for minimum pipe diameter distances from upstream disturbances Table 1 Straight Run Requirements Upstream Dimensions Downstream Dimensions Without Straightening Vanes With Straightening Vanes In Plane A Out of Plane A A C C B 1 8 10 8 4 4 4 4 2 11 16 8 4 4 4 4 3 23 28 8 4 4 4 4 4 12 12 8 4 4 4 4 ...

Page 5: ...n are not available position the mounting such that 80 of the run is upstream and 20 is downstream Use straightening vanes to reduce the required straight run length Row 6 in Table 1 applies to gate globe plug and other throttling valves that are partially opened as well as control valves Misalignment 485 Annubar installation allows for a maximum misalignment of 3 Figure 1 Misalignment Upstream Di...

Page 6: ...ted in the bottom half of the pipe The maximum temperature for a direct mounted transmitter is 500 F 260 C NOTE For steam applications with DP readings between 0 75 and 2 inH2O in horizontal pipes it is recommended to install the primary element flowmeter mounting above the pipe Figure 2 Gas Figure 3 Liquid and Steam Figure 4 Top Mounting for Steam direct mount up to 400 F 205 C 45 45 Recommended ...

Page 7: ... provided the vents are positioned properly for bleeding or venting Optimal results for liquid or steam are obtained when flow is up For steam applications a 90 spacer will be added to provide water legs to ensure the transmitter stays within temperature limits The maximum temperature for a direct mounted transmitter is 500 F 260 C Figure 5 Steam Figure 6 Liquid Figure 7 Gas 360 Flow 360 Flow 360 ...

Page 8: ... opposite side support model To drill the second hole follow these steps a Measure the pipe circumference with a pipe tape soft wire or string For the most accurate measurement the pipe tape needs to be perpendicular to the axis of flow b Divide the measured circumference by two to determine the location of the second hole c Re wrap the pipe tape soft wire or string from the center of the first ho...

Page 9: ...sure the distance from the high point of the weldolet to the first sensing hole port B then subtract 1 16 in 1 6 mm 4 Measure the distance from the end of the transferred length in step 4 to the last sensing hole port A 5 Compare the numbers obtained in steps 3 and 4 Small discrepancies can be compensated for with the fit up of the mounting hardware Large discrepancies may cause installation probl...

Page 10: ...ll fit around sensor Finish weld per local codes If alignment of the sensor does not allow enough clearance to insert the opposite side plug make the necessary adjustments prior to making the finish weld 4 To avoid serious burns allow the mounting hardware to cool before continuing Sensor Size Flange Size ODF in mm Size ODF in mm 1 11 2 in 150 3 88 98 5 DN40 PN16 3 09 78 6 1 11 2 in 300 4 13 104 9...

Page 11: ...o grooves on the Annubar head 2 Align the high side of the transmitter to the hi gh side of the sensor Hi is stamped on the side of the head and install 3 Tighten the nuts in a cross pattern to 400 in lb 45 N m Transmitter Mounting with Remote Mount Head Temperatures in excess of 250 F 121 C at the sensor module diaphragms will damage the transmitter Remote mounted transmitters are connected to th...

Page 12: ...ions Slope upward toward the transmitter for gas applications 2 Outdoor installations for liquid saturated gas or steam may require insulation and heat tracing to prevent freezing 3 An instrument manifold is recommended for all installations Manifolds allow an operator to equalize the pressures prior to zeroing and isolates the process fluid from the electronics Figure 10 Valve Identification for ...

Page 13: ...nics Manifold and Impulse Valves PH Primary Sensor 1 1 High Pressure High and low side pressure process connections PL Primary Sensor 2 2 Low Pressure DVH Drain Vent Valve 1 Drains for gas service or vents for liquid or steam service the DP sensor diaphragms DVL Drain Vent Valve 2 MH Manifold 1 Isolates high side or low side pressure from the process ML Manifold 2 MEH Manifold Equalizer 1 Allows h...

Page 14: ...15 C This orientation can be used for steam at any temperature However it is required for installations above 600 F 315 C For remote mount installations the impulse piping should slope up slightly from the instrument connections on the Annubar to the cross fittings allowing condensate to drain back into the pipe From the cross fittings the impulse piping should be routed downward to the transmitte...

Page 15: ...unt website at www rosemount com A hard copy may be obtained by contacting our local sales office European Pressure Equipment Directive PED 97 23 EC Rosemount 485 Annubar Refer to EC declaration of conformity for conformity assessment Pressure Transmitter See appropriate Pressure Transmitter QIG Hazardous Locations Certifications For information regarding the transmitter product certification see ...

Page 16: ...Quick Installation Guide 00825 0100 4809 Rev DB December 2009 Flanged 485 Annubar 16 ...

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