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8800D Vortex Flow Meter with Modbus Protocol
Quick Start Guide
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Rosemount 8800D Vortex Flow Meter with Modbus Protocol Quick Start Guide

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Quick Start Guide
00825-0400-4004, Rev AB
September 2021
Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Contents
2 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol

1 About this guide

This guide provides basic installation and configuration instructions for the Rosemount 8800D Vortex Flow Meter with Modbus protocol.
For more information on installation and configuration instructions, diagnostics, maintenance, service, and troubleshooting, please refer to the reference manual 00809-0400-4004.
For hazardous location installation, including Explosion-proof, Flameproof, or Intrinsic Safety (I.S.), please consult 00825-VA00-0001 Approval Document.

1.1 Hazard messages

This document uses the following criteria for hazard messages based on ANSI standards Z535.6-2011 (R2017).
DANGER
Serious injury or death will occur if a hazardous situation is not avoided.
WARNING
Serious injury or death could occur if a hazardous situation is not avoided.
CAUTION
Minor or moderate injury will or could occur if a hazardous situation is not avoided.
NOTICE
Data loss, property damage, hardware damage, or software damage can occur if a situation is not avoided. There is no credible risk of physical injury.
Quick Start Guide 3
Physical access
NOTICE
Unauthorized personnel can potentially cause significant damage and/or misconfiguration of end users' equipment. Protect against all intentional or unintentional unauthorized use.
Physical security is an important part of any security program and fundamental to protecting your system. Restrict physical access to protect users' assets. This is true for all systems used within the facility.

1.2 Safety messages

WARNING
Explosion hazards. Failure to follow these instructions could cause an explosion, resulting in death or serious injury.
• Verify the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
• Installation of this transmitter in an explosive environment must be in
accordance with the appropriate local, national, and international standards, codes, and practices. Review the approvals documents for any restrictions associated with a safe installation.
• Do not remove transmitter covers or thermocouple (if equipped) in
explosive atmospheres when the circuit is live. Both transmitter covers must be fully engaged to meet explosion-proof requirements.
• Before connecting a hand-held communicator in an explosive
atmosphere, make sure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.
WARNING
Electrical shock hazard. Failure to follow this instruction could result in death or serious injury. Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.
4 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
WARNING
General hazard. Failure to follow these instructions could result in death or serious injury.
• This product is intended to be used as a flowmeter for liquid, gas, or
steam applications. Do not use for any other purpose.
• Make sure only qualified personnel perform the installation.
Quick Start Guide 5

2 Return policy

Emerson procedures must be followed when returning equipment. These procedures ensure legal compliance with government transportation agencies and help provide a safe working environment for Emerson employees. Failure to follow Emerson procedures will result in your equipment being refused delivery.
6 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol

3 Emerson Flow customer service

Email:
• Worldwide: flow.support@emerson.com
• Asia-Pacific: APflow.support@emerson.com
Telephone:
North and South America Europe and Middle East Asia Pacific
United States 800 522 6277 U.K. 0870 240
Canada +1 303 527
5200
Mexico +41 (0) 41
7686 111
Argentina +54 11 4837
7000
Brazil +55 15 3413
8000
Venezuela +58 26 1731
3446
The Netherlands
France 0800 917 901 India 800 440 1468
Germany 0800 182
Italy 8008 77334 China +86 21 2892
Central & Eastern Europe
Russia/CIS +7 495 995
Egypt 0800 000
Oman 800 70101 Thailand 001 800 441
Qatar 431 0044 Malaysia 800 814 008
Kuwait 663 299 01
South Africa 800 991 390
Saudi Arabia 800 844 9564
UAE 800 0444
1978
+31 (0) 704 136 666
5347
+41 (0) 41 7686 111
9559
0015
0684
Australia 800 158 727
New Zealand 099 128 804
Pakistan 888 550 2682
9000
Japan +81 3 5769
6803
South Korea +82 2 3438
4600
Singapore +65 6 777
8211
6426
Quick Start Guide 7

4 Pre-installation

4.1 Planning

4.1.1 Sizing

To determine the correct meter size for optimal flow meter performance:
• Determine the limits of measuring flow.
• Determine the process conditions so that they are within the stated
requirements for Reynolds number and velocity.
Sizing calculations are required to select the proper flow meter size. These calculations provide pressure loss, accuracy, and minimum and maximum flow rate data to guide in proper selection. Vortex sizing software can be found using the Selection and Sizing tool. The Selection and Sizing tool can be accessed online or downloaded for offline use using this link:
www.Emerson.com/FlowSizing.

4.1.2 Wetted material selection

Ensure that the process fluid is compatible with the meter body wetted materials when specifying the Rosemount 8800D. Corrosion will shorten the life of the meter body. Consult recognized sources of corrosion data or contact Emerson Flow Sales Representative for more information.
Note
If Positive Material Identification (PMI) is required, perform test on a machined surface.

4.1.3 Orientation

The best orientation for the meter depends on the process fluid, environmental factors, and any other nearby equipment.
Vertical installation
Vertical, upward, installation allows upward process liquid flow and is generally preferred. Upward flow ensures that the meter body always remains full and that any solids in the fluid are evenly distributed.
The meter can be mounted in the vertical down position when measuring gas or steam flows. This type of application is strongly discouraged for liquid flows, although it can be done with proper piping design.
8 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 4-1: Vertical installation
A B
A. Liquid or gas flow B. Gas flow
Note
To ensure the meter body remains full, avoid downward vertical liquid flows where back pressure is inadequate.
Horizontal installation
For horizontal installation, the preferred orientation is to have the electronics installed to the side of the pipe. In liquid applications, this helps prevent any entrained air or solids from striking the shedder bar and disrupting the shedding frequency. In gas or steam applications, this helps prevent any entrained liquid (such as condensate) or solids from striking the shedder bar and disrupting the shedding frequency.
Figure 4-2: Horizontal installation
B
A
A. Preferred installation—meter body installed with electronics to side of
pipe
B. Acceptable installation—meter body installed with electronics above pipe
Quick Start Guide 9
High-temperature installations
The maximum process temperature for integral electronics is dependent on the ambient temperature where the meter is installed. The electronics must not exceed 185 °F (85 °C).
Figure 4-3 shows combinations of ambient and process temperatures
needed to maintain a housing temperature of less than 185 °F (85 °C).
Figure 4-3: Ambient/Process temperature limits
200 (93)
180(82)
160 (71)
600 (316)
700 (371)
C
800 (427)
900 (482)
1000 (538)
A
140 (60)
120 (49)
100 (38)
80 (27)
60 (16)
0
100 (38)
200 (93)
300 (149)
400 (204)
500 (260)
B
A. Ambient temperature °F (°C) B. Process temperature °F (°C) C. 185 °F (85 °C) Housing temperature limit.
Note
The indicated limits are for horizontal pipe and vertical meter position, with meter and pipe insulated with 3 in. (77 mm) of ceramic fiber insulation.
Install the meter body so the electronics are positioned to the side of the pipe or below the pipe as shown in Figure 4-4. Insulation may also be required around the pipe to maintain an electronics temperature below 185 °F (85 °C). See Figure 5-2 for special insulation considerations.
10 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 4-4: Examples of high-temperature installations
B
A
A. Preferred installation—The meter body installed with the electronics to
the side of the pipe.
B. Acceptable installation—The meter body installed with the electronics
below the pipe.

4.1.4 Location

Hazardous area
The transmitter has an explosion-proof housing and circuitry suitable for intrinsically safe and non-incendive operation. Individual transmitters are clearly marked with a tag indicating the certifications they carry. For hazardous location installation, including Explosion-proof, Flameproof,or Intrinsic Safety (I.S.), please consult the Emerson 8800 Approval Document 00825-VA00-0001.
Environmental considerations
Avoid excessive heat and vibration to ensure maximum flow meter life. Typical problem areas include high-vibration lines with integrally mounted electronics, warm-climate installations in direct sunlight, and outdoor installations in cold climates.
Although the signal conditioning functions reduce susceptibility to extraneous noise, some environments are more suitable than others. Avoid placing the flow meter or its wiring close to devices that produce high intensity electromagnetic and electrostatic fields. Such devices include electric welding equipment, large electric motors and transformers, and communication transmitters.
Upstream and downstream piping
The meter may be installed with a minimum of ten diameters (D) of straight pipe length upstream and five diameters (D) of straight pipe length downstream.
Quick Start Guide 11
To achieve reference accuracy, straight pipe lengths of 35D upstream and 5D downstream are required. The value of the K-factor may shift up to 0.5% when the upstream straight pipe length is between 10D and 35D. For optional K-factor corrections, see Rosemount™ 8800 Vortex Installation Effects Technical Data Sheet.
Steam piping
For steam applications, avoid installations such as the one shown in the following figure. Such installations may cause a water-hammer condition at start-up due to trapped condensation. The high force from the water hammer can stress the sensing mechanism and cause permanent damage to the sensor.
Figure 4-5: Wrong steam pipe installation
Pressure and temperature transmitter location
When using pressure and temperature transmitters in conjunction with the vortex flow meter for compensated mass flows, install the transmitter(s) downstream of the vortex flow meter.
12 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 4-6: Pressure and temperature transmitter location
C
A
B
D
A. Pressure transmitter B. Four straight pipe diameters downstream C. Temperature transmitter
D. Six straight pipe diameters downstream

4.1.5 Power supply

The transmitter requires 10 to 30 VDC. The maximum power consumption is
0.4 W.

4.2 Commissioning

For proper configuration and operation, commission the meter before putting it into operation. Bench commissioning also enables you to check hardware settings, test the flowmeter electronics, verify flowmeter configuration data, and check output variables. Any problems can be corrected—or configuration settings changed—before going out into the installation environment. To commission on the bench, connect a configuration device to the signal loop in accordance the device instructions.

4.2.1 Alarm and security jumper configuration

Two jumpers on the transmitter specify the alarm and security modes. Set these jumpers during the commissioning stage to avoid exposing the electronics to the plant environment. The two jumpers can be found on the electronics board stack or on the LCD display.
Alarm
Security
Quick Start Guide 13
The jumper setting for Alarm has no effect when the HART address is set to 1, which is the required setting for the transmitter when configured for use on a Modbus network.
You can protect the configuration data with the security lockout jumper. With the security lockout jumper ON, any configuration
changes attempted on the electronics are disallowed. You can still access and review any of the operating parameters and scroll through the available parameters, but no changes can be made. The factory sets the jumper according to the Configuration Data Sheet, if applicable, or OFF by default.
Note
If you will be changing configuration variables frequently, it may be useful to leave the security lockout jumper in the OFF position to avoid exposing the flow meter electronics to the plant environment.
To access the jumpers, remove the transmitter electronics housing or the LCD cover (if equipped) opposite of the terminal block, See Figure 4-7 and
Figure 4-8.
Figure 4-7: Alarm and security jumpers (no LCD option)
VORTEX
4-20mA HART
14 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
TP1
TEST FREQ
IN
Figure 4-8: Alarm and security jumpers (with LCD option)
HI LO
HI LO
ALARM
ALARM
FLOW
SECURITY
SECURITY
ON OFF
ON OFF

4.2.2 Calibration

The flow meter is wet-calibrated at the factory and needs no further calibration during installation. The calibration factor (K-factor) is indicated on each meter body and is entered into the electronics. Verification can be accomplished with a configuration device.
Quick Start Guide 15

5 Basic installation

5.1 Handling

Handle all parts carefully to prevent damage. Whenever possible, transport the system to the installation site in the original shipping containers. Keep the shipping plugs in the conduit connections until you are ready to connect and seal them.
NOTICE
To avoid damage to the meter, do not lift the flow meter by the transmitter. Lift the meter by the meter body. Lifting supports can be tied around the meter body as shown.
Figure 5-1: Lifting supports

5.2 Flow direction

The meter can only measure flow in the direction indicated on the meter body. Be sure to mount the meter body so the FORWARD end of the flow arrow points in the direction of the flow in the pipe.
5.3
16 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol

Gaskets

The flow meter requires gaskets supplied by the user. Be sure to select gasket material that is compatible with the process fluid and pressure ratings of the specific installation.
Note
Ensure the inside diameter of the gasket is larger than the inside diameter of the flow meter and adjacent piping. If gasket material extends into the flow stream, it will disturb the flow and cause inaccurate measurements.

5.4 Insulation

Insulation should extend to the end of the bolt on the bottom of the meter body and should leave at least 1-in. (25 mm) of clearance around the electronics bracket. The electronics bracket and electronics housing should not be insulated. See Figure 5-2.
Figure 5-2: Insulation best practice to prevent electronics overheating
A. Support tube
CAUTION
In high temperature installations, to avoid damage to the electronics on integral units or to the remote cable on remote units, only insulate the meter body as shown. Do not insulate the support tube. See also
Orientation.
5.5
Quick Start Guide 17

Flanged-style flow meter mounting

Most vortex flow meters use a flanged-style process connection. Physical mounting of a flanged-style flow meter is similar to installing a typical section of pipe. Conventional tools, equipment, and accessories (such as
bolts and gaskets) are required. Tighten the nuts following the sequence shown in Figure 5-4.
Note
The required bolt load for sealing the gasket joint is affected by several factors, including operating pressure and gasket material, width, and condition. A number of factors also affect the actual bolt load resulting from a measured torque, including condition of bolt threads, friction between the nut head and the flange, and parallelism of the flanges. Due to these application-dependent factors, the required torque for each application may be different. Follow the guidelines outlined in ASME PCC-1 for proper bolt tightening. Make sure the flow meter is centered between flanges of the same nominal size and rating as the flow meter.
Figure 5-3: Flanged-style flow meter installation
A. Installation studs and nuts (supplied by customer) B. Gaskets (supplied by customer) C. Flow
18 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 5-4: Flange bolt torquing sequence

5.6 Wafer-style flow meter alignment and mounting

Center the wafer-style meter body inside diameter with respect to the inside diameter of the adjoining upstream and downstream piping. This will ensure the flow meter achieves its specified accuracy. Alignment rings are provided with each wafer-style meter body for centering purposes. Follow these steps to align the meter body for installation. Refer to Figure 5-5.
1. Place the alignment rings over each end of the meter body.
2. Insert the studs for the bottom side of the meter body between the pipe flanges.
3. Place the meter body (with alignment rings) between the flanges.
• Make sure the alignment rings are properly placed onto the
studs.
• Align the studs with the markings on the ring that correspond to
the flange you are using.
Note
Be sure to align the flow meter so the electronics are accessible, the conduits drain, and the flow meter is not subject to direct heat.
4. Place the remaining studs between the pipe flanges.
5. Tighten the nuts in the sequence shown in Figure 5-4.
Quick Start Guide 19
6. Check for leaks at the flanges after tightening the flange bolts.
Note
The required bolt load for sealing the gasket joint is affected by several factors, including operating pressure and gasket material, width, and condition. A number of factors also affect the actual bolt load resulting from a measured torque, including condition of bolt threads, friction between the nut head and the flange, and parallelism of the flanges. Due to these application-dependent factors, the required torque for each application may be different. Follow the guidelines outlined in ASME PCC-1 for proper bolt tightening. Make sure the flow meter is centered between flanges of the same nominal size and rating as the flow meter.
Figure 5-5: Wafer-style flow meter installation with alignment rings
B
B
A
C
D
A. Installation studs and nuts (supplied by customer) B. Alignment rings C. Spacer (for Rosemount 8800D to maintain Rosemount 8800A
dimensions)
D. Flow
Note
See for instructions on retrofitting 8800D to 8800A installations.

5.6.1 Stud bolts for wafer-style flow meters

The following tables list the recommended minimum stud bolt lengths for wafer-style meter body size and different flange ratings.
20 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Table 5-1: Stud bolt length for wafer-style flow meters with ASME B16.5 flanges
Line size Minimum recommended stud bolt lengths (in inches) for
½-inch 6.00 6.25 6.25
1-inch 6.25 7.00 7.50
1½-inch 7.25 8.50 9.00
2-inch 8.50 8.75 9.50
3-inch 9.00 10.00 10.50
4-inch 9.50 10.75 12.25
6-inch 10.75 11.50 14.00
8-inch 12.75 14.50 16.75
each flange rating
Class 150 Class 300 Class 600
Table 5-2: Stud bolt length for wafer-style flow meters with EN 1092 flanges
Line size Minimum recommended stud bolt lengths (in mm) for each
DN 15 160 160 170 170
DN 25 160 160 200 200
DN 40 200 200 230 230
DN 50 220 220 250 270
DN 80 230 230 260 280
DN 100 240 260 290 310
DN 150 270 300 330 350
DN 200 320 360 400 420
flange rating
PN 16 PN 40 PN 63 PN 100
Line size Minimum recommended stud bolt lengths (in mm) for
15mm 150 155 185
25mm 175 175 190
40mm 195 195 225
Quick Start Guide 21
each flange rating
JIS 10k JIS 16k and 20k JIS 40k
Line size Minimum recommended stud bolt lengths (in mm) for
50mm 210 215 230
80mm 220 245 265
100mm 235 260 295
150mm 270 290 355
200mm 310 335 410
each flange rating
JIS 10k JIS 16k and 20k JIS 40k

5.7 Cable glands

If you are using cable glands instead of conduit, follow the cable gland manufacturer’s instructions for preparation and make the connections in a conventional manner in accordance with local or plant electrical codes. Be sure to properly seal unused ports to prevent moisture or other contamination from entering the terminal block compartment of the electronics housing.

5.8 Flow meter grounding

Grounding is not required in typical vortex applications; however, a proper ground will eliminate possible noise pickup by the electronics. Grounding straps may be used to ensure that the meter is grounded to the process piping. If you are using the transient protection option (T1), grounding straps are required to provide a proper low impedance ground.
Note
Properly ground flow meter body and transmitter per the local code.
To use grounding straps, secure one end of the grounding strap to the bolt extending from the side of the meter body and attach the other end of each grounding strap to a suitable ground. See Figure 5-6.
22 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 5-6: Grounding connections
A. Internal ground connection B. External ground assembly

5.9 Grounding the transmitter case

The transmitter case should always be grounded in accordance with national and local electrical codes. The most effective transmitter case grounding method is direct connection to earth ground with minimal impedance. Methods for grounding the transmitter case include:
Internal Ground Connection
External Ground Assembly
Note
Grounding the transmitter case using the threaded conduit connection may not provide a sufficient ground. The transient protection terminal block (Option Code T1) does not provide transient protection unless the
Quick Start Guide 23
The Internal Ground Connection screw is inside the FIELD TERMINALS side of the electronics housing. This screw is identified by a ground symbol ( ), and is standard on all Rosemount 8800D transmitters.
This assembly is located on the outside of the electronics housing and is included with the optional transient protection terminal block (Option Code T1). The External Ground Assembly can also be ordered with the transmitter (Option Code V5) and is automatically included with certain hazardous area approvals. See
Figure 5-6 for the location of the external ground
assembly.
transmitter case is properly grounded. For transient terminal block grounding, see the Reference Manual. Use the above guidelines to ground the transmitter case. Do not run the transient protection ground wire with signal wiring as the ground wire may carry excessive electric current if a lightning strike occurs.

5.10 Conduit installation

Prevent condensation in any conduit from flowing into the housing by mounting the flowmeter at a high point in the conduit run. If the flowmeter is mounted at a low point in the conduit run, the terminal compartment could fill with fluid.
If the conduit originates above the flowmeter, route conduit below the flowmeter to form a drip loop before entry. In some cases a drain seal may need to be installed.
Figure 5-7: Proper conduit installation
A A
A. Conduit line
5.11
24 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol

Wiring

1. Supply 10–30 VDC to the positive (+) and negative (–) terminals. The power terminals are polarity insensitive: the polarity of the DC power leads does not matter when connecting to the power terminals.
Figure 5-8: Modbus and power supply wiring
5.12
C
B A
A. RS-485 (A) B. RS-485 (B) C. 10–30 VDC power supply
2. Connect Modbus RTU communication wires to the Modbus A and B terminals.
Note
Twisted pair wiring is required for RS-485 bus wiring. Wiring runs under 1000 ft (305 m) should be AWG 22 or larger. Wiring runs from 1000 to 4000 ft. (305 to 1219 m) should be AWG 20 or larger. Wiring should not exceed AWG 16.

Remote installation

If a remote electronics option (Rxx or Axx) was ordered, the flow meter assembly will be shipped in two parts:
• The meter body with an adapter installed in the support tube and an
interconnecting coaxial cable attached to it.
• The electronics housing installed on a mounting bracket.
If an armored remote electronics option (Axx) was ordered, follow the same instructions as for the standard remote cable connection with the exception that the cable may not need to be run through conduit. Both standard and armored cable include cable glands. Information on remote installation can be found in Cable connections.
Quick Start Guide 25

5.12.1 Mounting

Mount the meter body in the process flow line as described earlier in this section. Mount the bracket and electronics housing in the desired location. The housing can be repositioned on the bracket to facilitate field wiring and conduit routing.
26 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol

5.12.2 Cable connections

Complete these steps for connecting the loose end of the coaxial cable to the electronics housing. If connecting/disconnecting the meter adapter to the meter body,.
Figure 5-9: Remote installation
A
B
C
D
E F
P
G
O
H
N
J
K
I
M
L
A. ½ NPT conduit adapter or cable gland (supplied by customer for Rxx
options) B. Coaxial cable C. Meter adapter
D. Union
E. Washer
F. Nut G. Sensor cable nut H. Support tube
I. Meter body J. Electronics housing
K. Coaxial cable SMA nut
L. ½ NPT conduit adapter or cable gland (supplied by customer for Rxx
options)
M. Housing adapter screws
N. Housing adapter O. Housing base screw (one of four)
P. Ground connection
Quick Start Guide 27
CAUTION
To prevent moisture from entering the coaxial cable connections, install the interconnecting coaxial cable in a single dedicated conduit run or use sealed cable glands at both ends of the cable.
In remote mount configurations when ordered with a hazardous area option code, the remote sensor cable and the interconnecting thermocouple cable are protected by separate intrinsic safety circuits, and must be segregated from each other, other intrinsically safe circuits, and non-intrinsically safe circuits per local and national wiring code.
CAUTION
The coaxial remote cable cannot be field terminated or cut to length. Coil any extra coaxial cable with no less than a 2-in. (51 mm) radius.
1. If you plan to run the coaxial cable in conduit, carefully cut the conduit to the desired length to provide for proper assembly at the housing. A junction box may be placed in the conduit run to provide a space for extra coaxial cable length.
2. Slide the conduit adapter or cable gland over the loose end of the coaxial cable and fasten it to the adapter on the meter body support tube. If coaxial remote cable originates or any part of the cable is above the flow meter, route cable below the flow meter to form a drip loop before the meter body support tube.
3. If using conduit, route the coaxial cable through the conduit.
4. Place a conduit adapter or cable gland over the end of the coaxial cable.
5. Remove the housing adapter from the electronics housing.
28 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
6. Slide the housing adapter over the coaxial cable.
7. Remove one of the four housing base screws.
8. Attach the coaxial cable ground wire to the housing via the housing base ground screw.
9. Attach and hand tighten the coaxial cable SMA nut to the electronics housing to 7 in-lbs (0.8 N-m).
Figure 5-10: Attaching and tightening SMA nut
A
B
A. SMA nut B. Hand tighten
Note
Do not over-tighten the coaxial cable nut to the electronics housing.
10. Align the housing adapter with the housing and attach with two screws.
11. Tighten the conduit adapter or cable gland to the housing adapter.

5.12.3 Housing rotation

The entire electronics housing may be rotated in 90° increments for easy viewing. Use the following steps to change the housing orientation,
1. Loosen the housing rotation set screws at the base of the electronics housing with a 5/32” hex wrench by turning the screws clockwise (inward) until they clear the support tube.
2. Slowly pull the electronics housing out of the support tube.
Quick Start Guide 29
CAUTION
Do not pull the housing more than 1.5 in. (40 mm) from the top of the support tube until the sensor cable is disconnected. Damage to the sensor may occur if this sensor cable is stressed.
3. Unscrew the sensor cable from the housing with a 5/16” open end wrench.
4. Rotate the housing to the desired orientation.
5. Hold it in this orientation while you screw the sensor cable onto the base of the housing.
CAUTION
Do not rotate the housing while the sensor cable is attached to the base of the housing. This will stress the cable and may damage the sensor.
6. Place the electronics housing into the top of the support tube.
7. Use a hex wrench to turn the housing rotation screws counter­clockwise (outward) to engage the support tube.

5.12.4 Specifications and requirements for remote sensor cable

If using a Rosemount remote sensor cable, observe these specifications and requirements.
• The remote sensor cable is a proprietary design tri-axial cable
• It is considered a low voltage signal cable
• It is rated for and/or part of intrinsically safe installations
• Non armored version is designed to be run through metal conduit
• Cable is water resistant, but not submersible. As a best practice,
exposure to moisture should be avoided if possible
• Rated operating temperature is –58°F to +392°F (–50°C to +200°C)
• Flame Resistant in accordance with IEC 60332-3
• Non-armored and armored version minimum bend diameter is 8 inches
(203 mm)
• Nominal O.D. of the non-armored version is 0.160 inches (4 mm)
• Nominal O.D. of the armored version is 0.282 inches (7.1 mm)
30 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 5-11: Non-armored cable
A. Transmitter end B. Sensor end C. Minimum bend diameter
D. Nominal O.D.
Figure 5-12: Armored cable
A. Transmitter end B. Sensor end C. Minimum bend diameter
5.13
Quick Start Guide 31

Quad transmitter numbering and orientation

When quad vortex flow meters are ordered, for configuration purposes, the transmitters are identified as Transmitter 1, Transmitter 2, Transmitter 3, and Transmitter 4. The transmitter and meter body nameplate of a Quad Vortex flow meter can be used to identify and verify the transmitter number. See Figure 5-13 for Quad transmitter orientation and nameplate locations.
See Figure 4-14 and 4-15 for Quad transmitter and meter body nameplate number location.
Figure 5-13: Quad transmitter numbering
A. Transmitter nameplate (Transmitter 1) B. Meter body nameplate (Transmitter 1)
32 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Figure 5-14: Quad transmitter nameplate
Figure 5-15: Quad meter body nameplate
Quick Start Guide 33

6 Basic configuration

6.1 About basic configuration

The transmitter will be configured at the factory before shipment. If further configuration changes are required, note the following:
• A HART communication tool must be used. Examples are ProLink III
Software or AMS Software with a HART modem, or Emerson AMS Trex Device Communicator or 475 Field Communicator.
• The transmitter leaves the factory at HART address 1. Verify that the
HART communication tool is configured to poll beyond address 0.
Important
Do not change the transmitter HART address; it should always be set to
1.
• The COMM terminals must be used for configuration. A built-in load
resistor is provided for HART communication; an external load resistor is not required.
Note
After measurement configuration and Modbus communication settings are configured with a HART communicatoin tool, the flow meter can be used to output measurement data to a Modbus host.

6.2 Connect configuration tool

If configuration changes are needed, connect the configuration tool to the transmitter as shown in Figure 6-1.
34 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
C
B
A
Figure 6-1: HART configuration tool connection to COMM port
A. Example AMS Trex Device Communicator B. Example ProLink III software on PC C. 10–30 VDC power supply
Tip
If you do not have an external power supply during configuration, you can temporarily power the transmitter directly through the COMM terminals using the AMS Trex Device Communicator.
6.3

Process variables

Process variables define the flow meter output. When commissioning a flow meter, review each process variable, its function and output, and take corrective action if necessary before using the flow meter in a process application.

6.3.1 Primary variable mapping

Allows the user to select which variables the transmitter will output.
ProLink III
Flow variables are available as Corrected Volume Flow, Mass Flow, Velocity Flow, Volume Flow or Process Temperature (MTA option only).
Quick Start Guide 35
When bench commissioning, the flow values for each variable should be zero and the temperature value should be the ambient temperature.
Device Tools → Configuration → Communications (HART)
If the units for the flow or temperature variables are not correct, refer to
Process variable units. Use the Process Variable Units function to select the
units for your application.

6.3.2 Process variable units

ProLink III Device Tools → Configuration → Process
Measurement → (select type)
Allows for the viewing and configuration of Process Variable Units such as Volume, Velocity, Mass Flow, Electronics Temperature, Process Density, and Corrected Volume units, including corrected volume Special Units configuration.
Volume flow units
Allows the user to select the volumetric flow units from the available list.
Table 6-1: Volume flow units
gallons per second gallons per minute gallons per hour
gallons per day cubic feet per second cubic feet per minute
cubic feet per hour cubic feet per day barrels per second
barrels per minute barrels per hour barrels per day
imperial gallons per second
imperial gallons per day liters per second liters per minute
liters per hour liters per day cubic meters per second
cubic meters per minute cubic meters per hour cubic meters per day
mega cubic meters per day
imperial gallons per minute
special units
imperial gallons per hour
Corrected volumetric flow units
Allows the user to select the corrected volumetric flow units from the available list.
Table 6-2: Corrected volume flow units
gallons per second gallons per minute gallons per hour
gallons per day cubic feet per second standard cubic feet per
standard cubic feet per hour
barrels per minute barrels per hour barrels per day
36 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
cubic feet per day barrels per second
minute
Table 6-2: Corrected volume flow units (continued)
imperial gallons per second
imperial gallons per day liters per second liters per minute
liters per hour liters per day normal cubic meters per
normal cubic meters per hour
cubic meters per minute cubic meters per hour cubic meters per day
special units
imperial gallons per minute
normal cubic meters per day
imperial gallons per hour
minute
cubic meters per second
Note
When measuring corrected volumetric flow, a base density and process density must be provided. The base density and process density are used to calculate the density ratio which is a value used to convert actual volume flow to corrected volume flow.
Mass flow units
Allows the user to select the mass flow units from the available list. (1 STon = 2000 lb; 1 MetTon = 1000 kg)
Table 6-3: Mass flow units
grams per hour grams per minute grams per second
kilograms per day kilograms per hour kilograms per minute
kilograms per second pounds per minute pounds per hour
pounds per day special units short tons per day
short tons per hour short tons per minute pounds per second
tons (metric) per day tons (metric) per hour tons (metric) per minute
Note
If you select a Mass Flow Units option, you must enter process density in your configuration.
Velocity flow units
Allows the user to select the Velocity Flow Units from the available list.
• feet per second
• meters per second
Quick Start Guide 37
Velocity measurement base
Determines if the velocity measurement is based on the mating pipe ID or the meter body ID. This is important for Reducer™ Vortex Applications.

6.4 Process configuration

ProLink III Device Tools → Configuration → Device Setup
The flow meter can be used for liquid or gas/steam applications, but it must be configured specifically for the application. If the flow meter is not configured for the proper process, readings will be inaccurate. Select the appropriate process configuration parameters for your application:
Transmitter mode
For units with an integral temperature sensor, the temperature sensor can be activated here.
• Without Temperature Sensor
• With Temperature Sensor
Set process fluid
Select the fluid type—either Liquid, Gas/Steam, Tcomp Sat Steam, or Tcomp Liquids. Tcomp Sat Steam and Tcomp Liquids require the MTA Option and provide dynamic density compensation based on the process temperature reading.
Fixed process temperature
Needed for the electronics to compensate for thermal expansion of the flow meter as the process temperature differs from the reference temperature. Process temperature is the temperature of the liquid or gas in the line during flow meter operation.
May also be used as a back-up temperature value in the event of a temperature sensor failure if the MTA option is installed.
Fixed process density
A Fixed Process Density must be accurately configured if mass flow or corrected volume flow measurements are used. In mass flow it is used to convert volume flow to mass flow. In corrected volume flow it is used with the base process density to derive a density ratio which in turn is used to convert volume flow to corrected volume flow. In temperature compensated fluids the fixed process density is still required as it is used to convert volume flow sensor limits to sensor limits for temperature compensated fluids.
38 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Note
If mass or corrected volume units are chosen, you must enter the density of your process fluid into the software. Be careful to enter the correct density. The mass flow rate and density ratio are calculated using this user-entered density, and unless the transmitter is in TComp Sat Steam or TComp Liquids mode where changes in density are automatically being compensated for, any error in this number will cause error in the measurement.
Base process density
The density of the fluid at base conditions. This density is used in corrected volume flow measurement. It is not required for volume flow, mass flow, or velocity flow. The Base Process Density is used with the Process Density to calculate the Density Ratio. In temperature compensated fluids, the Process Density is calculated by the transmitter. In non-temperature compensated fluids the Fixed Process Density is used to calculate a fixed Density Ratio. Density Ratio is used to convert actual volumetric flow to standard volumetric flow rates based on the following equation:
Density ratio = density at actual (flowing) conditions/density at standard (base) conditions

6.5 Reference K-factor

ProLink III Device Tools → Configuration → Device Setup
A factory calibration number relating the flow through the meter to the shedding frequency measured by the electronics. Every vortex meter manufactured by Emerson is run through a water calibration to determine this value.
6.6
Quick Start Guide 39

Flange type

ProLink III Device Tools → Configuration → Device Setup
Enables the user to specify the type of flange on the flow meter for later reference. This variable is preset at the factory but can be changed if necessary.
Table 6-4: Flange types
Wafer ASME 150 ASME 150 Reducer
ASME 300 ASME 300 Reducer ASME 600
ASME 600 Reducer ASME 900 ASME 900 Reducer
ASME 1500 ASME 1500 Reducer ASME 2500
ASME 2500 Reducer PN10 PN10 Reducer
Table 6-4: Flange types (continued)
PN16 PN16 Reducer PN25
PN25 Reducer PN40 PN40 Reducer
PN64 PN64 Reducer PN100
PN100 Reducer PN160 PN160 Reducer
JIS 10K JIS 10K Reducer JIS 16K/20K
JIS 16K/20K Reducer JIS 40K JIS 40K Reducer
Special (Spcl)

6.7 Pipe I.D.

ProLink III Device Tools → Configuration → Device Setup
The pipe I.D. (inside diameter) of the pipe adjacent to the flow meter can cause entrance effects that may alter flow meter readings. Configuring the actual mating pipe inside diameter will correct for theses effects. Enter the appropriate value for this variable.
Pipe I.D. values for schedule 10, 40, and 80 piping are given in the following table. If the mating pipe I.D. is not listed in the table, confirm it with the manufacturer or measure it yourself.
Table 6-5: Pipe IDs for Schedule 10, 40, and 80 piping
Pipe size inches (mm)
½ (15) 0.674 (17,12) 0.622 (15,80) 0.546 (13,87)
1 (25) 1.097 (27,86) 1.049 (26,64) 0.957 (24,31)
1½ (40) 1.682 (42,72) 1.610 (40,89) 1.500 (38,10)
2 (50) 2.157 (54,79) 2.067 (52,50) 1.939 (49,25)
3 (80) 3.260 (82,80) 3.068 (77,93) 2.900 (73,66)
4 (100) 4.260 (108,2) 4.026 (102,3) 3.826 (97,18)
6 (150) 6.357 (161,5) 6.065 (154,1) 5.761 (146,3)
8 (200) 8.329 (211,6) 7.981 (202,7) 7.625 (193,7)
10 (250) 10.420 (264,67) 10.020 (254,51) 9.562 (242,87)
12 (300) 12.390 (314,71) 12.000 (304,80) 11.374 (288,90)
40 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Schedule 10 inches (mm)
Schedule 40 inches (mm)
Schedule 80 inches (mm)

6.8 Optimize Digital Signal Processing (DSP)

ProLink III Device Tools → Configuration → Process
Measurement → Signal Processing
A function that can be used to optimize the range of the flow meter based on the density of the fluid. The electronics uses process density to calculate the minimum measurable flow rate, while retaining at least a 4:1 signal to the trigger level ratio. This function will also reset all of the filters to optimize the flow meter performance over the new range. If the configuration of the device has changed, this method should be executed to ensure the signal processing parameters are set to their optimum settings. For dynamic process densities, select a density value that is lower than the lowest expected flowing density.

6.9 Modbus communication settings

Table 6-6: Modbus default and configurable communication settings
Parameter Rosemount
Baud rate 9600 1200, 2400, 4800, 9600,
Start bits
Data Bits
Parity Even None None, Odd, Even
Stop Bits One One One, two
Address range 1 246 1–247
(1) If the transmitter was ordered without communication settings, these will be
(2) Start bits and data bits cannot be changed.
(2)
(2)
configured at the factory.
8800D default settings
One
Eight
(1)
HMC Default settings
Configurable values
19200, 38400
Configuring the HART Message field
ProLink III
Device Tools → Configuration → Informational Parameters → Transmitter
To implement the Modbus communication settings using a HART communication device, you must enter the parameters in the form of a text string into the HART Message field.
Quick Start Guide 41
Note
The HART address must be set to 1 to ensure that the HART message field is implemented by the transmitter.
The string is in the following example format: HMC A44 B4800 PO S2
HMC
These three characters are required at the beginning of the configuration string.
A44
A indicates that the following number is the new Address (address
44). Leading zeros are not needed.
B4800
B indicates that the following number is the new Baud rate (1200, 2400, 4800, 9600, 19200, 38400).
PO
P identifies the following letter as Parity type (O = odd, E = even, and N = none).
S2
S indicates that the following figure is the number of Stop bits (1 = one, 2 = two).
Only values that differ from the current values need to be included. For example, if only the address is changed, the following text string is written into the HART Message: HMC A127.
Note
If the string is entered as only "HMC" the Modbus settings will be reset to their HMC default values shown in Table 6-6. This will not affect other transmitter configuration settings.
Note
Cycle power after sending the message and wait 60 seconds after the power is restored for changes to take effect.
Alarm handling
The output from the Modbus transmitter in case of an error (such as a field device malfunction) can be configured. The values for Modbus registers corresponding to PV, SV, TV, and QV will be changed accordingly (applicable registers in area 1300, 2000, 2100, and 2200).
Write HART Message field for HART address 1 device per Table 6-7.
Note
Cycle power after sending the message and wait 60 seconds after the power is restored for changes to take effect.
Table 6-7: Modbus alarm configuration settings
String Alarm output
HMC EN Not a number (NaN), default
42 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Table 6-7: Modbus alarm configuration settings (continued)
String Alarm output
HMC EF Freeze, hold last value
HMC EU-0.1 User defined value. 0.1 in this example
Quick Start Guide 43

7 Product certifications

For information about product certifications, refer to Rosemount™ 8800D Series Vortex Flowmeter Approval Document (00825-VA00-0001). You can find
it at emerson.com or contact an Emerson Flow representative.
44 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Quick Start Guide 45
46 Rosemount™ 8800D Vortex Flow Meter with Modbus Protocol
Quick Start Guide 47
*00825-0400-4004*
00825-0400-4004, Rev. AB
Quick Start Guide
September 2021
For more information:
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2021 Rosemount, Inc. All rights
reserved.
The Emerson and Rosemount logos are trademarks and service marks of Emerson Electric Co. All other marks are property of their respective owners.
www.emerson.com
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