Dwyer SN Vane In-Line Variable Area Flowmeter Control Boxes with Transmitters Instruction Manual

Dwyer SN Vane In-Line Variable Area Flowmeter Control Boxes with

Transmitters

Specifications

• Series: SN/SM/SH, MN/MM/MH, LN/LE, XHF
• Type: Standard Vane In-Line Variable Area Flowmeter Control Boxes with Transmitters

Installation

1. Ensure the area where the flowmeter will be installed is clean and free from any obstructions.
2. Identify the appropriate model from the series mentioned in the specifications.
3. Follow the detailed installation guidelines provided in the manual for the specific model.

Operation

1. Once installed, connect the flowmeter to the power source as per the provided instructions.
2. Turn on the device and follow the calibration steps outlined in the manual to ensure accurate readings.
3. Monitor the flow readings displayed on the transmitter and take necessary actions based on the data.

FAQ

Q: How do I calibrate the flowmeter?
A: Calibration instructions are provided in the manual specific to your model. Follow those guidelines carefully to calibrate the flowmeter accurately.

SERIES SN/SM/SH, MN/MM/MH, LN/LE, XHF
STANDARD VANE
IN-LINE VARIABLE AREA FLOWMETER CONTROL BOXES WITH TRANSMITTERS

Installation and Operation Manual

General Vane Piston Switch Manual

Installation and Operation Manual for series: LL, LP, LH, SN, SM, SH, MN, MM ,MH, SX and MX for A, L or Z control boxes with 0, 1 or 2 switches.

NAMEPLATES AND PRODUCT ID
This manual applies to all vane/piston meters that have one of the designators in the model codes shown in the table shown below. This can be seen on the name plate example.

Table 1: Model code designations for zero, one, two switches

WARNING : This instrument was made for the specific use stated at the time of order. Any other use may cause injury. Read instructions before using the device.
Supply Connections —Wire Sizes: Wire used to connect any Switches included must be in accordance with all local and national codes. Wire size and insulation ratings should support actual loads. See also Switch Ratings below. In all cases, wire must be, as a minimum, 20 AWG Teflon insulated rated at 600V and 200°C. It is recommended to include a disconnect switch or circuit breaker near this equipment.

Electrical Switch Ratings:

Switch Identification| Switch Description| Electrical Ratings
---|---|---
Model Code Designator: 1 or 2| SPDT – (3 wire)

(1 or 2 switches may be provided)

| __

15A – 125VAC, 250VAC, 480VAC; ⅛HP –

125VAC, ¼HP – 250VAC

Model Code Designator: 1B or 2B| SPDT – (3 wire) High Vibration| 20A – 125VAC, 250VAC, 480VAC; ½A –

125VDC, ¼A -250VDC; 1HP – 125VAC,

2HP – 250VAC

Model Code Designator: 61 or 62| SPDT –

High Temperature

| 15A – 125VAC, 250VAC, 480VAC; ½A –

125VDC, ¼A -250VDC; ⅛HP – 125VAC,

¼HP – 250VAC

__ Model Code Designator: 71 or 72| SPDT –

Gold Contact

| 15A – 125VAC, 250VAC, 480VAC; ⅛HP –

125VAC, ¼HP – 250VAC

Model Code Designator: 3 or 4| SPDT – (4 wire) Single-Break Form Z| 15A – 125VAC, 250VAC, 480VAC; 1A –

125VDC, ½A -250VDC; ¼HP – 125VAC,

½HP – 250VAC

Installation

For best results, the meters may be installed in any position as long as proper piping installation requirements are observed. This includes sufficient support of adjacent piping to minimize the system’s inherent vibration. Unions of the same pipe size and full port isolation ball valves may be installed for ease of removal and servicing of equipment, if necessary.
If Teflon® tape or pipe sealant is used, the user must ensure that no loose parts become wrapped around the bluff or the flow sensor when the flow starts.

Vane/Piston AX/H

Installation and Operation Manual Series: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX and MX Used with control boxes: A, L, or Z with 4-20 mA

Maximum Dimensions

Quick Set Up
Wiring Using Pre-Installed Wires:

Complete the loop circuit using the 2 pre-installed 18”, 22AWG wires provided.
IMPORTANT: Observe polarity—The red wire is positive (+), and the black wire is negative (-).

Wiring Removing Pre-Installed Wires:
Open cover and remove pre-installed wires. Connect a twisted wire pair (not provided) to the terminals observing the polarity marked on the PC board. The units are shipped with a red wire connected to the positive (+) terminal, and a black wire connected to the negative (-) terminal. The wire may be up to AWG 14 size, but no smaller than AWG22.

Introduction to HART® Field Device Specifications

Scope
The Universal Flow Monitors water flow transmitter, model ME Transmitter complies with HART Protocol Revision 7.0. This document specifies all the device-specific features and documents HART Protocol implementation details (e.g., the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.

Purpose
This specification is designed to complement other documentation (e.g., the installation manuals specific to SN/SM/SH, MN/MM/MH/, LL/LP/LH, LN/LE and XHF model flow meters) by providing a complete, unambiguous description of this Field Device from a HART Communication perspective

Who Should Use this Document?
The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands, enumerations and performance requirements) used during Field Device development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.

Abbreviations and Definitions

• ADC Analog to Digital Converter
• CPU Central Processing Unit (of microprocessor)
• DAC Digital to Analog Converter
• EEPROM Electrically-Erasable Read-Only Memory
• ROM Read-Only Memory
• PV Primary Variable
• SV Secondary Variable
• HCF HART Communication Foundation
• FSK Frequency Shift Keying Physical Layer

Process Interface

Magnetic Sensors
There are two built-in hall-effect sensors measuring the rotation of a permanent magnet that is mounted onto the flowmeter shaft. As the shaft rotates with flow, the sensors provide analog readings that are in turn converted to a digital value by and A/D converter. The digital values are then processed by the microcontroller and linearized, and subsequently converted to a scaled analog output via a D/A converter in the range of 4 to 20 mA.

Host Interface Analog Output 1: Process Flow

The two-wire 4-20mA current loop is connected to two terminals on the transmitter circuit board. Depending on the product used, one of the two configurations are offered for field wiring.
The first option allows the user to directly connect the loop wires to the terminals on the PCB. The correct polarity is shown in the pictures below, where the red wire is connected to the (+) terminal and the black wire is connected to the (–) terminal.

Dynamic Variables
Two Dynamic Variables are implemented.

Table 3: Dynamic Variables table

| Meaning| Units
---|---|---
PV| Volumetric Flow Reading| GPM, CMH,

LPM

SV| Totalizer Value based on PV| Follows PV Units

The PV is derived using a calibrated linearization table applied to A/D converter readings of hall-effect sensors.
The SV is based on a 5ms timer and is updated based on the current reading of flow.

Both PV and SV values are smoothed.

Status Information

Table 4: Device Status table

limit
0x02(bit 1)| Non-Primary Variable out of limits| None
0x01(bit 0)| Primary Variable Out of limits| Occurs when PV is being limited due to exceeding calibrated limitations

When Bit 4 is set, Host should send Command 48 to determine which alarm is active.

Additional Device Status (Command #48)

Command #48 returns 9 bytes of data, with the following status information:

Table 5: Device Specific Status Byte 0 table

Burst Mode

This Field Device does not support Burst Mode.

Catch Device Variable
This Field Device does not support Catch Device Variable.

Device-Specific Commands
The following device-specific commands are implemented:

• 128 Read Alarm Setpoints
• 129 Write Low Alarm Setpoint
• 130 Write High Alarm Setpoint
• 131 Reset Totalizer

Command #128: Read Alarm Setpoints
Reads the High and Low Alarm Setpoints. If zero, the alarm is disabled.

Request Data Bytes

Table 6: Request Data Bytes table

Byte                    Format Description

None

Response Data Bytes

Table 7: Response Data Bytes table

Command #129: Write Low Alarm Setpoint

Writes the setpoint for the Low Alarm.

Request Data Bytes

Command #131: Reset Totalizer
Resets the totalizer to zero.

Request Data Bytes
Table 11: Request Data Bytes table

Response Data Bytes

Table 12: Response Data Bytes table

Byte          Format                         Description

None

Command-Specific Response Codes

Table 13: Command-Specific Response Codes table

Performance

Sampling Rates

Typical sampling rates are shown in the following table.
Table 14: Sampling Rates table

Power-Up
The device is typically ready within 1 second of power-up. Totalizer is initialized to zero.

Reset
Command 42 (“Device Reset”) causes the device to reset its microcontroller. The resulting restart is identical to the normal power up sequence.

Self-Test
Self-Test is not supported.

Command Response Times

Table 15: Command Response Times table

Annex A: Capability Checklist

Vane/Piston AXØ

Installation and Operation Manual Series: LL, LP, LH, SN, SM, SH, MN, MM ,MH, SX and MX for A, L or Z control boxes with transmitter.

Maximum Dimensions

Nameplates and Product ID
This manual applies to all vane/piston meters that have the designator “AX0”, “LX0” or “ZX0” in the model code. This can be seen on the name plate as shown below.

Vane/Piston RX/H

Installation and Operation Manual Series: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX, MX, LN, LE and XHF Used with R control boxes with 4-20 mA transmitter or HART and optional mechanical switches.

Maximum Dimensions

Installation

For best results, the meters may be installed in any position as long as proper piping installation requirements are observed. This includes sufficient support of adjacent piping to minimize the system’s inherent vibration. Unions of the same pipe size and full port isolation ball valves may be installed for ease of removal and servicing of equipment, if necessary.

References
HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF. Installation manuals specific to SN/SM/SH, MN/MM/MH/LL/LP/LH,LN/LE and XHF model flow meters as manufactured by Universal Flow Monitors, Inc.

Device Identification

Product Overview

The ME Transmitter is a two-wire loop-powered flow transmitter, with a 4-to- 20mA output. This transmitter uses a non-contact magnetic encoder for measuring the displacement of the shaft/pointer on standard UFM flowmeters. It is an add-on feature to SN/SM/SH,MN/MM/MH,LL/LP/LH,LN/LE and XHF model flow meters as manufactured by Universal Flow Monitors, Inc. The ME Transmitter replaces the earlier models Digital Transmitters that utilized a potentiometer, providing improved accuracy while maintaining 100% compatibility. The analog output of this device is linear with flow over the working range of all supported flowmeters.

Process Interface
Magnetic Sensors

There are two built-in hall-effect sensors measuring the rotation of a permanent magnet that is mounted onto the flowmeter shaft. As the shaft rotates with flow, the sensors provide analog readings that are in turn converted to a digital value by and A/D converter. The digital values are then processed by the microcontroller and linearized, and subsequently converted to a scaled analog output via a D/A converter in the range of 4 to 20 mA.

Host Interface: Process Flow
The two-wire 4-20mA current loop is connected to two terminals on the transmitter circuit board. Depending on the product used, one of the two configurations are offered for field wiring.
A secondary terminal strip away from the PCB (mounted in a separate compartment of the flowmeter) and is marked L+ and L-. The red wire connects the (+) terminal on the PCB to L+ and the black wire connects the (–) terminal on the PCB to L-.

This is the only output from this transmitter, representing the process flow measurement, linearized and scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.

A guaranteed linear over-range is provided. The up-scale current of 24mA can indicate device malfunction. Current values are shown in the table below.
Table 17: Current Values table

| Direction| Values (percent of range)| Values (mA or V)
---|---|---|---
__

Linear over-range

| Down| 0% ± 0.5%| 3.92 to 4.08 mA
Up| +106.25% ± 0.1%| 20.84 mA to 21.16 mA
Device malfunction indication| Down| N/A| N/A
Up| +125.0% ± 0.1%| 23.98 mA to 24.02 mA
Maximum current| +106.25% ± 1%| 20.84 mA to 21.16 mA
Multi-Drop current draw| 4.0 mA
Lift-off voltage| 10.5 V

Status Information

limit
0x02(bit 1)| Non-Primary Variable out of limits| None
0x01(bit 0)| Primary Variable Out of limits| Occurs when PV is being limited due to exceeding calibrated limitations

When Bit 4 is set, Host should send Command 48 to determine which alarm is active.

Extended Device Status
The Field Device cannot predict, in advance, when the maintenance will be required. Extended Device Status is unused.

Table 19: Command 48-Byte Data

active.
7| Device Operating Mode| 0
8| Standard Status 0| Not used

“Not used” bits are always set to 0.
Device does not support extended device status, all device status activity is included in the device status byte.

Universal Commands
All Universal Commands are supported as specified in the HART Universal Command Specification.

Common-Practice Supported Commands
The following common-practice commands are implemented:

• 33 Read Device Variables
• 35 Write Range Values
• 42 Perform Master Reset
• 44 Write PV Units
• 54 Read Device Variable Information

In command 54 the acquisition period is unused. Values are typically updated every 100ms.

Command-Specific Response Codes

Table 20: Command-Specific Response Codes

Command #130: Write High Alarm Setpoint

Writes the setpoint for the High Alarm.
Request Data Bytes

Table 21: Request Data Bytes table

Response Data Bytes
Table 22: Response Data Bytes table

Command-Specific Response Codes
Table 23: Command-Specific Response Codes table

Tables
Flow Unit Codes
Subset of HART Common Unit Codes

Table 24: Flow Unit Codes table

Unit Conversion
Internally, the transmitter uses Gallons per Minute. Conversions are made using a floating point factor. Values are directly converted from GPM when possible, however Alarm values changed between units are converted from stored unit value:

Table 25: Unit Conversion table

Performance
Busy and Delayed-Response
Device busy is not used. Delayed-response is not used.

Long Messages
The largest data field used is in the response to Command 21: 34 bytes including the two status bytes.

Non-Volatile Memory
EEPROM is used to hold the device’s configuration parameters. New data is written within 100ms of command receipt.
Modes
Fixed current mode is not implemented.

Write Protection
Write-protection is not implemented.
Damping
Damping is not implemented.

Annex b. Default Configuration
Default configuration is based on a unit-by-unit basis.

ane/Piston TX/H

Installation and Operation Manual Series: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX, MX, LN, LE and XHF Used with T control boxes with 4-20 mA transmitter or HART and optional mechanical switches.

Maximum Dimensions

Installation

For best results, the meters may be installed in any position as long as proper piping installation requirements are observed. This includes sufficient support of adjacent piping to minimize the system’s inherent vibration. Unions of the same pipe size and full port isolation ball valves may be installed for ease of removal and servicing of equipment, if necessary.

Device Identification

Product Overview
The ME Transmitter is a two-wire loop-powered flow transmitter, with a 4-to- 20mA output. This transmitter uses a non-contact magnetic encoder for measuring the displacement of the shaft/pointer on standard UFM flowmeters. It is an add-on feature to SN/SM/SH,MN/MM/MH,LL/LP/LH,LN/LE and XHF model flow meters as manufactured by Universal Flow Monitors, Inc. The ME Transmitter replaces the earlier models Digital Transmitters that utilized a potentiometer, providing improved accuracy while maintaining 100% compatibility. The analog output of this device is linear with flow over the working range of all supported flowmeters.

Process Interface

1. Magnetic Sensors
   There are two built-in hall-effect sensors measuring the rotation of a permanent magnet that is mounted onto the flowmeter shaft. As the shaft rotates with flow, the sensors provide analog readings that are in turn converted to a digital value by and A/D converter. The digital values are then processed by the microcontroller and linearized, and subsequently converted to a scaled analog output via a D/A converter in the range of 4 to 20 mA.

2. Host Interface: Process Flow
   The two-wire 4-20mA current loop is connected to two terminals on the transmitter circuit board. Depending on the product used, one of the two configurations are offered for field wiring.
   A secondary terminal strip away from the PCB (mounted in a separate compartment of the flowmeter) and is marked L+ and L-. The red wire connects the (+) terminal on the PCB to L+ and the black wire connects the (–) terminal on the PCB to L-.

This is the only output from this transmitter, representing the process flow measurement, linearized and scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.

A guaranteed linear over-range is provided. The up-scale current of 24mA can indicate device malfunction. Current values are shown in the table below.

Table 26: Current Values table

| Direction| Values (percent of range)| Values (mA or V)
---|---|---|---
__

Linear over-range

| Down| 0% ± 0.5%| 3.92 to 4.08 mA
Up| +106.25% ± 0.1%| 20.84 mA to 21.16 mA
Device malfunction indication| Down| N/A| N/A
Up| +125.0% ± 0.1%| 23.98 mA to 24.02 mA
Maximum current| +106.25% ± 1%| 20.84 mA to 21.16 mA
Multi-Drop current draw| 4.0 mA
Lift-off voltage| 10.5 V

Status Information

Table 27: Device Status table

limit
0x02(bit 1)| Non-Primary Variable out of limits| None
0x01(bit 0)| Primary Variable Out of limits| Occurs when PV is being limited due to exceeding calibrated limitations

When Bit 4 is set, Host should send Command 48 to determine which alarm is active.

Extended Device Status

The Field Device cannot predict, in advance, when the maintenance will be required. Extended Device Status is unused.

Table 28: Command 48-Byte Data

active.
7| Device Operating Mode| 0
8| Standard Status 0| Not used

“Not used” bits are always set to 0.
Device does not support extended device status, all device status activity is included in the device status byte.

Universal Commands
All Universal Commands are supported as specified in the HART Universal Command Specification.

Common-Practice Supported Commands
The following common-practice commands are implemented:

• 33 Read Device Variables
• 35 Write Range Values
• 42 Perform Master Reset
• 44 Write PV Units
• 54 Read Device Variable Information
• In command 54 the acquisition period is unused. Values are typically updated every 100ms.

Burst Mode
This Field Device does not support Burst Mode.

Catch Device Variable
This Field Device does not support Catch Device Variable.

Device-Specific Commands
The following device-specific commands are implemented:

• 128 Read Alarm Setpoints
• 129 Write Low Alarm Setpoint
• 130 Write High Alarm Setpoint
• 131 Reset Totalizer

Command #129: Write Low Alarm Setpoint
Writes the Setpoint for the Low Alarm.

Request Data Bytes
Table 29: Request Data Bytes table

Response Data Bytes
Table 30: Response Data Bytes table

Command-Specific Response Codes
Table 31: Command-Specific Response Codes table

Command #131: Reset Totalizer
Resets the totalizer to zero.

Request Data Bytes
Table 32: Request Data Bytes table

Byte          Format                         Description

None

Response Data Bytes
Table 33: Response Data Bytes table

Byte          Format                         Description

None

Command-Specific Response Codes
Table 34: Command-Specific Response Codes table

Performance
Sampling Rates

Typical sampling rates are shown in the following table.
Table 35: Sampling Rates table

Power-Up
The device is typically ready within 1 second of power-up. Totalizer is initialized to zero.

Reset
Command 42 (“Device Reset”) causes the device to reset its microcontroller. The resulting restart is identical to the normal power up sequence. (See Section 5.7.2.)

Self-Test
Self-Test is not supported.

Command Response Times
Table 36: Command Response Times table

Annex A: Capability Checklist

Table 37: Capability Checklist table

Vane/Piston TX/TXL

Installation and Operation Manual Series: LL, LP, LH, PI, SN, SM, SH, MN, MM, MH, SX and MX

Nameplates and Product ID
This manual applies to all vane/piston meters that have the designator “TX0,1,2,3,4 or 61” or “TXL0,1,3,

in the model code. This can be seen on the name plate as shown below.

Figure 32: Terminal Strip for Power and 4-20 mA Signal

A typical 4-20mA wiring diagram is shown below

A guaranteed linear over-range is provided. Device malfunction can be indicated by the up-scale current of 24mA. Current values are shown in the table below.
Table 38: Current Values table

| Direction| Values (percent of range)| Values (mA or V)
---|---|---|---
Linear over-range| Down| 0% ± 0.5%| 3.92 to 4.08 mA
Up| +106.25% ± 0.1%| 20.84 mA to 21.16 mA
Device malfunction indication| Down| N/A| N/A
Up| +125.0% ± 0.1%| 23.98 mA to 24.02 mA
Maximum current| +106.25% ± 1%| 20.84 mA to 21.16 mA
Multi-Drop current draw| 4.0 mA
Lift-off voltage| 10.5 V

1. After the last digit is set, continue holding A2 until “SEt” is displayed. If you want to change the first digit again, do not hold A2. Momentarily press and release A2 and the first digit starts blinking again.

2. When finished recording the new setpoint (“SEt” is displayed), release A2.

3. Note 1: Valid setpoint range is 0-100% of full-scale flow. If the alarm value is set higher than full-scale, it is clamped at full-scale upon exiting this menu.

4. Note 2: To disable the alarm, set its value to zero.

5. Note 3: The red ALARM 1 LED comes on when flow exceeds this setpoint. This LED is in series with the drive circuit for the high-alarm open-collector output, meaning that the output transistor is active whenever this LED is on. Some models do not have any external wiring that connects to the alarm transistor (see Model Codes).

In this example, the high alarm had been set for 80.0; therefore, the red LED was activated when flow reached 80.1.
The LED turns off when flow < (setpoint – hysteresis). Hysteresis is 5% of full-scale.

Set Low Flow Alarm

1. Press A2 until “LFLo” is displayed, then release A2.

UNRESTRICTED

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>