Rosemount 9175 Natural Gas Flow Meter Quick Start Guide

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Quick Start Guide
00825-0100-4175, Rev AA
Rosemount™ 9175 Natural Gas Flow Meter
June 2019
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Quick Start Guide June 2019
NOTICE
Rosemount 4088A Quick Start Guide
Rosemount 4088B Quick Start Guide
Rosemount 3051SMV Quick Start Guide
Rosemount 214C Quick Start Guide
Hazardous Area Approvals: This assembly is assembled from certified pieces of equipment. The overall assembly is subject to inspection by the authority having jurisdiction over the installation.
If the meter was ordered with a wireless transmitter, the battery will be shipped separately due to freight carrier regulations.
WARNING
Process leaks may cause harm or result in death.
To avoid process leaks, only use gaskets and O-rings designed for the corresponding flange to seal process connections.
Transmitter electronics maintenance should not be conducted on energized equipment in a hazardous atmosphere.
Failure to comply with the requirements for intrinsic safety in a hazardous atmosphere could result in an explosion.
If the process fluid is hazardous, the procedure outlined here should be modified as required.
Failure to do so could result in serious injury to personnel or death.
If the line is pressurized, always open valves slowly.
Failure to do so could result in serious injury to personnel or death.
During installation never lift the meter by the transmitter, RTD, or impulse lines/valves.
Doing so may result in meter damange and serious injury.
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’ equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for all systems used within the facility.
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Contents
Before you begin.......................................................................................................................... 5
Locate the installation point......................................................................................................... 6
Orient and install the flow meter.................................................................................................. 7
Trim the transmitter.....................................................................................................................9
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1 Before you begin

Before you begin the installation, consider the temperature limits of the meter, which are: -20 F (-28.9C) to 160F (71.1C).
Figure 1-1: Exploded View
A. Transmitter B. RTD assembly C. Meter tube
D. RTD cable
E. Manifold F. Stabilized connectors
G. Flow conditioner
The three steps to install and zero the Rosemount 9175 Natural Gas Flow Meter are described in this guide:
Locate the installation point
Orient and install the meter tube
Trim the transmitter
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2 Locate the installation point

Locate the meter installation point. If possible, install the meter at ground level to allow meter access. No straight run is required for disturbances in Table 1. In all cases, if additional straight run is available, a best practice is to position the Rosemount 9175 where 80 percent of the run is upstream of the meter and 20 percent is downstream. The access point to remove the orifice plate should face away from any potential interference (i.e. wall or piping).
Table 2-1: Straight Pipe Requirements (Distance in Number of Pipe Diameters)
Type of flow distrubance upstream of flow
(1)
meter
Upstream (inlet) side of primary
Downstream (outlet) side of primary (all disturbances) 0
(1) Consult an Emerson representative if a disturbance is not listed. (2) Straight pipe lengths are measured from the upstream and downstream flanges
of the Rosemount 9175. A zero diameter requirement implies that the meter can be installed directly adjacent to a disturbance.
Single 90° bends in the same plane
Two or more 90° bends in the same plane
Two or more 90° bends in different planes
Up to 10° of swirl 0
Reducer (One line size) 0
Diameters of straight pipe run needed
0
0
0
(2)
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3 Orient and install the flow meter

The flow meter is installed with the electronics above the pipe, within 45 degrees from vertical. It can be specified in a left hand or right hand configuration.
The flow meter must be oriented with the flow arrow pointing in the direction of flow. Otherwise, the meter will produce erroneous readings. See Figure 3-1. The orifice plate should be installed in an orientation consistent with the flow arrow on the meter body. The bevel should be oriented downstream.
Figure 3-1: Flow Direction
1. Lift the meter by using straps on the body of the meter. Follow local guidelines on lifting safety. Do not lift the meter by the stabilized connectors or the transmitter body. Ensure meter is secured correctly within straps. If not secured correctly, the meter may rotate during lifting operations.
2. Install the flanged ends into the process pipe as shown in Figure 3-2.
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Figure 3-2: Installed Meter
3. Use the appropriate studs, nuts, gaskets and torque spec for the given flange size, rating and process conditions. Tighten the nuts following a star pattern. See Figure 3-3.
Figure 3-3: Flange Bolting
8 bolt holes 4 bolt holes
Once the flow meter is installed in the line, wire the transmitter electronics into the control system.
WARNING
Perform this task in an environment free of hazardous or combustible gases.
Failure to comply with the requirements for intrinsic safety in a hazardous atmosphere could result in an explosion.
For orifice plate removal and installation, refer to Daniel Simplex Orifice
Fittings Owner and Operator Manual. Gaskets and O-rings should be
replaced when the Rosemount 9175 is disassembled.
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4 Trim the transmitter

Before the unit is put in service, a transmitter zero trim should be performed at normal line pressure.
In normal operation, the two isolate (block) valves between the process ports and the transmitter will be open, and the equalize valves will be closed. Vent valves may be open or closed.
A. (Plugged) B. Isolate (open) C. Process D. Equalize (closed) E. Equalize (closed)
F. Drain vent (closed) G. Process H. Isolate (open) I. (Plugged)
Procedure
1. To zero trim the transmitter, first close the isolate valve on the low pressure (downstream) side of the transmitter and the drain vent valve.
A. (Plugged) B. Isolate (open) C. Process D. Equalize (closed) E. Equalize (closed)
F. Drain vent (closed) G. Process H. Isolate (closed) I. (Plugged)
2. Open the equalize valve on the high pressure (upstream) side of the transmitter.
A. (Plugged) B. Isolate (open) C. Process D. Equalize (open) E. Equalize (closed)
F. Drain vent (closed) G. Process H. Isolate (closed) I. (Plugged)
3. Open the equalize valve on the low pressure (downstream) side of the transmitter. The manifold is now in the proper configuration for zeroing the transmitter.
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A. (Plugged) B. Isolate (open) C. Process D. Equalize (open) E. Equalize (open)
F. Drain vent (closed) G. Process H. Isolate (closed) I. (Plugged)
4. Perform the zero trim. Refer to the transmitter Quick Start Guide for more information.
5. After zeroing the transmitter, close the equalize valve on the low pressure (downstream) side of the transmitter.
A. (Plugged) B. Isolate (open) C. Process D. Equalize (open) E. Equalize (closed)
F. Drain vent (closed) G. Process H. Isolate (closed) I. (Plugged)
6. Close the equalize valve on the high pressure (upstream) side.
A. (Plugged) B. Isolate (open) C. Process D. Equalize (closed) E. Equalize (closed)
F. Drain vent (closed) G. Process H. Isolate (closed) I. (Plugged)
7. Finally, to return the transmitter to service, open the low side isolate valve and drain vent valve.
The drain vent valve can remain open or closed during operation.
A. (Plugged) B. Isolate (open) C. Process D. Equalize (closed) E. Equalize (closed)
F. Drain vent (closed) G. Process H. Isolate (open) I. (Plugged)
The flow meter assembly is now ready for service.
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*00825-0100-4175*
00825-0100-4175, Rev. AA
Quick Start Guide
June 2019
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