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Quick Installation Guide

00825-0100-4031, Rev AA

April 2005

Duct Mount 285 Annubar

6

3. Push the flange and gasket flush against the duct wall; align the flow arrow in the 

direction of flow and fasten the flange to the duct using the #12 sheet metal screws 
provided.

Figure 5.  

4. On the opposite side of the duct, place the 

5

/

16

-in. lock washer over the stud, screw on 

the 

5

/

16

 nut, and tighten. Depending on the pressure in the duct, it may be necessary to 

add some high temperature gasket sealant where the stud protrudes through the duct 
wall.

Duct Mount With Compression Fitting (Annubar type D2)

1. Place gasket against the mounting flange. Alternatively, a high-temperature gasket 

sealant may be used.

2. Push the flange and gasket flush against the duct wall, and fasten the flange to the duct 

using the #12 sheet metal screws provided.

STUD

1/4" SHEET METAL SCREWS

2

85

/15

-4

90

01

6-

90

1,

15

-4

90

01

7-

90

1

STUD

1/4" SHEET

METAL SCREWS

28

5/

15-

4900

37

-9

01

,

15

-4

90

03

8-

90

1

STUD

LOCK WASHER

NUT

ANNUBAR

DUCT

DUCT

LOCK WASHER

NUT

STUD

ANNUBAR

285

/15

-490

01

8-

90

1, 

/15

-4

9

0039

-901

00825-0100-4031_Rev AA.fm  Page 6  Monday, March 28, 2005  11:10 AM

Summary of Contents for Rosemount 285

Page 1: ...v AA April 2005 Duct Mount 285 Annubar Step 1 Location and Orientation Step 2 Installation Preparation Step 3 Installation Step 4 Mount the Transmitter Product Certifications Start End Rosemount 285 Annubar Duct Mount 00825 0100 4031_Rev AA fm Page 1 Monday March 28 2005 11 10 AM ...

Page 2: ...ndan Crescent Singapore 128461 T 65 6777 8211 F 65 6777 0947 65 6777 0743 Beijing Rosemount Far East Instrument Co Limited No 6 North Street Hepingli Dong Cheng District Beijing 100013 China T 86 10 6428 2233 F 86 10 6422 8586 IMPORTANT NOTICE This installation guide provides basic guidelines for Rosemount 285 Annubar It does not provide instructions for configuration diagnostics maintenance servi...

Page 3: ...For unique duct configurations consult the factory Table 1 Minimum straight duct requirements for the 285 Annubar Upstream Length Downstream Length 7W 2W 7W 2W 15W 2W 7W 2W 15W 2W H W 2W W H 2H 285 15 490026 901 15 490027 901 eps H W 2W 7W 285 15 490028 901 H W 7W 2W 285 15 490029 901 2W H W 15W 285 15 490030 901 2W H W 7W 285 15 490031 901 15W 2W 3 864 W DAMPER 285 15 490032 901 00825 0100 4031_R...

Page 4: ...ong the center line of the rectangular duct or anywhere on the circumference of a round duct Mark horizontal and vertical center lines through the mounting location For duct mount Annubars without compression fitting threaded stud welded to tip of sensor extend the center line to the opposite duct wall or 180 around a circular duct as shown in Figure 1 Figure 1 3 Measure and mark the locations of ...

Page 5: ...allation dimensions inches mm Annubar Model Number B D 285xxxxxxxD1x1x 0 75 19 05 0 38 9 65 285xxxxxxxD1x2x 1 31 33 27 0 38 9 65 285xxxxxxxD2x1x 0 75 19 05 not applicable 285xxxxxxxD2x2x 1 31 33 27 not applicable Table 4 Hole drill size for 12 self tapping screws C dimension inches mm Hole Required Duct Wall Thickness Hole Size Drill Size less than 0 036 0 91 0 166 4 2 19 0 048 1 22 0 169 4 3 18 0...

Page 6: ...ome high temperature gasket sealant where the stud protrudes through the duct wall Duct Mount With Compression Fitting Annubar type D2 1 Place gasket against the mounting flange Alternatively a high temperature gasket sealant may be used 2 Push the flange and gasket flush against the duct wall and fasten the flange to the duct using the 12 sheet metal screws provided STUD 1 4 SHEET METAL SCREWS 28...

Page 7: ...s over the studs on the packing gland and hand tighten the nuts Figure 8 5 Align the flow arrow on the Annubar with the flow direction in the duct and tighten the nuts on the packing NOTE Do not over tighten the packing as this can lead to deforming the opposite wall of the duct 6 Observe the opposite side of the duct and ensure that the ducting has not deformed GASKET OR SEALANT FOR HIGH TEMPERAT...

Page 8: ...pending 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 1 mm is recommended Threaded pipe fittings are not recommended because they create voids where air can become entrapped and create leakage points The following restrictions ...

Page 9: ...ame Description Purpose Components 1 Electronics Reads Differential Pressure 2 Manifold Isolates and equalizes electronics 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 electronics chambers DVL Drain Vent Valve...

Page 10: ...electronics below the sensor to ensure that air will not be introduced into the impulse piping or the electronics Steam or Liquid Service above 250 F 121 C Mount the electronics below the process piping adjust 10 to 15 degree above direct vertical down Route the impulse piping down to the electronics and fill the system with cool water through the two tee fittings Figure 10 Gas Figure 11 Liquid Fi...

Page 11: ...y for all applicable European directives for this product can be found on the Rosemount 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 285 Annubar Refer to EC declaration of conformity for conformity assessment Pressure Transmitter See appropriate Pressure Transmitter QIG 00825 0100 4031_Rev...

Page 12: ...Quick Installation Guide 00825 0100 4031 Rev AA April 2005 Duct Mount 285 Annubar 12 00825 0100 4031_Rev AA fm Page 12 Monday March 28 2005 11 10 AM ...

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