54-631 Thermatel® Model TA2 Instruction and

Installation and Operating Manual

Thermatel

®

Enhanced Model TA2

Software v2.x

Thermal

Dispersion

Mass Flow

Transmitter

Read this Manual Before Installing

This manual provides information on the TA2 Thermal

Dispersion Mass Flow Transmitter. It is important that all instructions are read carefully and followed in sequence.

Detailed instructions are included in the Installation section of this manual.

Conventions Used in this Manual

Certain conventions are used in this manual to convey specific types of information. General technical material, support data, and safety information are presented in narrative form. The following styles are used for notes, cautions, and warnings.

NOTES

Notes contain information that augments or clarifies an operating step. Notes do not normally contain actions. They follow the procedural steps to which they refer.

Cautions

Cautions alert the technician to special conditions that could injure personnel, damage equipment, or reduce a component’s mechanical integrity. Cautions are also used to alert the technician to unsafe practices or the need for special protective equipment or specific materials. In this manual, a caution box indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

WARNINGS

Warnings identify potentially dangerous situations or serious hazards. In this manual, a warning indicates an imminently hazardous situation which, if not avoided, could result in serious injury or death.

Safety Messages

Follow all standard industry procedures for servicing electrical equipment when working with or around high voltage. Always shut off the power supply before touching any components.

WARNING! Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.

Low Voltage Directive

For use in Installation Category II, Pollution Degree 2. If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired.

Notice of Trademark, Copyright, and Limitations

Magnetrol ® & MAGNETROL logotype, and

THERMATEL are registered trademarks of

MAGNETROL International, Incorporated.

THERMATEL Model TA2 Thermal Dispersion

Mass Flow Transmitter is a tradename of MAGNETROL

International, Incorporated.

Copyright © 2017 MAGNETROL International,

Incorporated.

All rights reserved.

Performance specifications are effective with date of issue and are subject to change without notice.

MAGNETROL reserves the right to make changes to the product described in this manual at any time without notice. MAGNETROL makes no warranty with respect to the accuracy of the information in this manual.

Warranty

All MAGNETROL electronic level and flow controls are warranted free of defects in materials or workmanship for eighteen months from the date of original factory shipment.

If returned within the warranty period; and, upon factory inspection of the control, the cause of the claim is determined to be covered under the warranty; then,

MAGNETROL will repair or replace the control at no cost to the purchaser (or owner) other than transportation.

MAGNETROL shall not be liable for misapplication, labor claims, direct or consequential damage or expense arising from the installation or use of equipment. There are no other warranties expressed or implied, except special written warranties covering some MAGNETROL products.

Quality Assurance

The quality assurance system in place at MAGNETROL guarantees the highest level of quality throughout the company. MAGNETROL is committed to providing full customer satisfaction both in quality products and quality service.

The MAGNETROL Corporate quality assurance system is registered to ISO

9001 affirming its commitment to known international quality standards providing the strongest assurance of product/service quality available.

Thermatel

®

Enhanced Model TA2

Thermal Dispersion Mass Flow Transmitter

Table of Contents

1.0 Quick Start Installation

1.1 Probe Installation...................................................... 4

1.2 Wiring...................................................................... 4

1.3 Configuration........................................................... 5

2.0 Installation

2.1 Unpacking................................................................ 6

2.2 Electrostatic Discharge (ESD) Handling Procedure..... 6

2.3 Installation................................................................ 7

2.3.1 Electronics......................................................7

2.3.2 Probe/Flow Body............................................7

2.4 Wiring...................................................................... 9

2.4.1 Power and Signal Connection........................ 9

2.4.2 Ground Connection.....................................10

2.4.3 4-20 mA Output..........................................10

2.4.4 Pulse/Alarm Output..................................... 10

2.4.5 Remote Electronics.......................................11

2.4.5.1 Probe Wiring........................................ 11

2.5 Configuring the Transmitter....................................12

2.5.1 Initialization................................................. 12

2.5.2 Operator Keypad..........................................13

2.5.2.1 Menu Traversal Mode............................13

2.5.2.2 Item List Selection................................ 13

2.5.2.3 Numeric Entry......................................14

2.5.2.4 Character Data Entry Mode..................15

2.5.2.5 Increment/Decrement Digit Mode........15

2.5.3 Password.......................................................16

2.5.4 Configuration Menu Overview.................... 16

2.5.5 Run Mode....................................................18

2.5.6 Measured Values...........................................18

2.5.7 Basic Configuration Menu........................... 20

2.5.8 I/O Configuration Menu............................. 21

2.5.9 Totalizer....................................................... 22

2.5.10 Transistor Output.........................................24

2.5.10.1 Pulse Rate Calculation Example............25

2.5.11 Advanced Configuration Menu.................... 26

2.5.11.1 Custom Unit Multiplier Example......... 28

2.5.12 Device Information...................................... 29

2.5.13 Diagnostics Menu........................................ 30

2.5.14 Factory Configuration.................................. 36

2.5.15 Probe Parameters.......................................... 37

2.5.16 Calibration Parameters................................. 38

2.5.17 Gas Parameters............................................. 39

2.5.18 Air Equivalency Calibration......................... 40

2.6 Configuration Using HART ® ................................. 41

2.6.1 Connection.................................................. 41

2.6.2 HART Revision Table.................................. 41

2.6.3 HART Display Menu...................................41

3.0 Reference Information

3.1 Description............................................................. 46

3.2 Theory of Operation...............................................46

3.3 Display Module...................................................... 47

3.4 Troubleshooting...................................................... 47

3.4.1 Error Messages............................................. 49

3.4.1.1 Fault Messages.......................................50

3.4.1.2 Warning Messages................................. 51

3.4.1.3 Information Messages............................51

3.5 Diagnostics Test...................................................... 52

3.5.1 Heater Setting.............................................. 52

3.5.2 Zero Power Test............................................52

3.5.3 Calibration Verification Procedure............... 52

4.0 Maintenance

4.1 Circuit Board Replacement..................................... 54

4.2 Probe Replacement................................................. 55

4.3 RTD Calibration.....................................................56

4.3.1 RTD Calibration..........................................56

4.3.2 Set Point Adjustment................................... 56

4.4 Flow Recalibration.................................................. 57

4.5 Agency Approvals....................................................59

4.6 Replacement Parts...................................................61

4.7 Specifications.......................................................... 62

4.7.1 Performance................................................. 62

4.7.2 Transmitter.................................................. 62

4.7.3 Probe............................................................62

4.7.4 Flow Body....................................................62

4.7.5 Physical........................................................ 63

4.8 Model Numbers......................................................65

4.8.1 Transmitter...................................................65

4.8.2 Insertion Probe.............................................66

4.8.3 Flow Body....................................................67

4.8.4 Connecting Cable........................................ 68

Glossary......................................................................... 69

Appendix A....................................................................70

Appendix B....................................................................73

Appendix C....................................................................74

Flow Application Questionnaire....................................75

4

1.0

Quick Start Installation

The TA2 is calibrated and configured with the information supplied to MAGNETROL with the order. The instrument can be installed, wired, and place directly into operation.

1.1

Probe Installation

Pipe centerline

1" (25 mm)

Insert the probe into the pipe or duct at the appropriate location. It is recommended that the sensor be located on the center line of the pipe and that the flow arrow be positioned in the direction of flow.

See Appendix A for recommended straight run and flow conditioning plate installation details (if applicable).

Figure 1

Probe Installation into Pipe or Duct

Using a Compression Fitting

1.2

Wiring

Warning:

Explosion Hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.

NOTE: Make sure the electrical wiring to the TA2 is complete and in compliance with all regulations and codes. For a maximum ambient temperature of 80° C use wiring rated up to 264 VAC and 105 °C. For a maximum ambient temperature of 70° C use wiring rated up to 264 VAC and 95 °C.

AC Power input

(100 – 264 VAC)

TB1

AC INPUT

100-264 VAC

50/ 60Hz

DC Power input

(15 – 30 VDC)

TB2

DC INPUT

+

Analog Output 1

Active or Passive connections

TB3

LOOP1/HART

OUTPUT

P-

A-

P+

PULSE/

ALARM

A+ P-

A-

P+ A+

NOTE: The AC power terminal blocks accept 12-22 AWG wire and the

DC power terminal blocks accept 14-30 AWG wire. Select wire size consistent with power requirements. The mA output and pulse output also accept 14-30 AWG wire.

Pulse/Alarm Output


TB4

1. Remove the cover of the rear compartment.

2. Pull power supply and control wiring through conduit connection.

3. Connect power leads to proper terminals.

a. 100 to 264 VAC – Make connections to TB1.

Connect the “hot” wire to L1 and the second wire to L2.

TB1

TB2 TB3

PP+

LOOP2

OUTPUT

TB4

R1

POWER

D6

b. 15 to 30 VDC – Make the connections to TB2.

Connect the positive wire to (+) and the negative lead to (–).

F1

TB5

Analog Output 2

Passive connections only

TB5

NOTE: Ensure that the correct wiring is made to the appropriate terminals. Connecting the DC power to the AC terminals will cause the unit not to operate. Connecting the AC power to the

DC terminals will blow the fuse and potentially cause damage to the electronics boards.

Figure 2

Wiring Connections

NOTE: The green ground screw in the rear of the housing should be used for earth ground.

54-631 THERMATEL Model TA2 Transmitter

4. Connect the 4-20 mA signal wiring to TB3. Make connections to A-, A+ for an active output signal (power supplied by TA2) or P-, P+ for a passive signal using an external power supply.

5. Optional Pulse Output: connect signal wiring to TB4.

Make connections to A-, A+ for an active output (power supplied by the TA2) or P-, P+ for a passive signal using an external power supply. (See specifications for voltage requirements.)

6. Optional second mA output – connect signal wiring to

TB5. Make connections to P- and P+ using an external power supply. This is a passive connection requiring external power supply.

NOTE: If using both the passive pulse output and second mA output see Appendix B.

7. Replace the housing cover.

1.3

Configuration

The TA2 is pre-configured using the information supplied with the order. If desired, the user can view or change any of the configuration data. See Configuring the Transmitter,

Section 2.5


5

6

2.0

Installation

2.1

Unpacking

Unpack the instrument carefully making sure all components have been removed from the packing material.

Inspect all components for damage. Report any concealed damage to the carrier within 24 hours. Check the contents of the carton making sure they correspond with the packing slip and purchase order. Save the Calibration Certificate containing the calibration and configuration data for future reference.

Verify that the model number imprinted on the nameplate matches the number on the packing slip and the purchase order. Report any discrepancies to the factory. Record the serial number for future reference when ordering parts.

Model Number

Serial Number

2.2

Electrostatic Discharge (ESD)

Handling Procedure

MAGNETROL electronic instruments are manufactured to the highest quality standards. These instruments utilize electronic components which may be damaged by static electricity present in most work environments. The following steps are recommended to reduce the risk of component failure due to electrostatic discharge:

1. Ship and store circuit boards in anti-static bags. If an antistatic bag is not available, wrap board in aluminum foil.

Do not place boards on foam packing materials.

2. Use a grounding wrist strap when installing and removing circuit boards. A grounded workstation is also recommended.

3. Handle printed circuit boards only by the edges. Do not touch components or connector pins.

4. Ensure that all electrical connections are completely secure and none are partial or floating. Ground all equipment to a good earth ground.

NOTE: The instrument is rated per IEC 61010-1 for use in Installation

Category

II, Pollution Degree 2.


2.3

Installation

2.3.1 Electronics

The instrument is rated for use in Class I, Division 1 and

Class I, Division 2 areas. The enclosure is also rated

NEMA 4X. Remote electronics (optional) should be installed in an easy to access location within 500 feet

(150 meters) of the sensor. The electronics should not be installed in areas where ambient temperature exceeds

+175 °F (+80 °C). If ambient temperature is between

-22 to -65 °F (-30 to -54 °C), the unit will operate but the display will not be readable.

Provide watertight seals for all wiring entrances in the enclosure to maintain the NEMA 4X rating. Use appropriate NEC section when installing the instrument.

NOTE: A switch or circuit breaker should be installed in close proximity to the equipment and within easy reach of the operator.

It should be marked as the disconnecting device for the equipment.

Pipe centerline

1" (25 mm)

Figure 3

Probe Installation into Pipe or Duct

Using a Compression Fitting

2.3.2 Probe/Flow Body

Proper installation of the probe in the pipe or duct is essential for accurate air or gas flow measurement. Normal procedures for installing any type of flow element should be followed. See Appendix A for additional information on probe location.

A flow arrow is etched on the sides of the probe to designate flow direction. The instrument is calibrated with the flow in this direction. Ensure that the flow arrow is aligned in the direction of flow. The instrument is unable to recognize flow direction if inserted with the flow arrow in the wrong direction.

It is generally recommended that the sensor be located in the center of the pipe. This location provides less sensitivity to changes in flow profile. Sensors mounted through compression fittings have the ability to field adjust the sensor to the desired location by using the dimensions as shown in Figure 3.

It may be necessary to rotate the head of the instrument to view the display while maintaining the proper flow orientation. This is accomplished by loosening the set screw on the bottom of the housing, rotating the enclosure to the desired position and re-tightening the set screw. The second set screw is a stop to prevent over rotating the enclosure.

See figure 4.

Figure 4


7

8

Pressure ratings of the compression fitting:

Stainless steel ferrules:

1500 psig at +70 °F (103 bar at +20 °C)

1375 psig at +400 °F (95 bar at +200 °C)

Teflon ® ferrules:

100 psig (7 bar)

Various methods of mounting the probe include compression fittings, threads, and flanged connections. Refer to probe model numbers. The insertion probe can be installed through a compression fitting. The use of a bored-through fitting with 3 ⁄

4

" or 1" NPT connection for

3 ⁄

4

" outside diameter tube is recommended.

The use of Teflon

® ferrules should be considered if repeated reposition of the sensor is considered. The stainless steel ferule can only be tightened once as it makes a permanent indentation on the probe. If using a compression fitting with stainless steel ferrules, ensure that the probe is in the desired location before tightening.

NOTE: The TA2 flow measurement is based on a fully developed turbulent flow profile in a pipe with the specified inner diameter.

Accuracy will be affected if these conditions are not obtained.

Installing the probe in a tee is not recommended as the flow profile and the flow area are distorted (See figure 5).

For applications where it is desirable to install or remove the probe without having to shut down the process,

The MAGNETROL Retractable Probe Assembly (RPA) can be utilized. See the Model TA2 Product Catalog

(MAGNETROL bulletin 54-140) for more information.

WARNING

To avoid potential damage or injury, never loosen a compression fitting while sensor is under pressure.

Figure 5

Probe Installation into a Tee Fitting is

Not Recommended

Figure 6

Install the TA2 at an Angle where Condensed Moisture may be Present

NOTE: Remote electronics is recommended for operating temperatures greater than +250 °F (+120 °C) or in locations where the temperature of the electronics will exceed +175 °F (+80 °C).

Optionally, an insertion probe with extended probe length to provide at least four inches (100 mm) between the electronics and the compression fitting can be utilized.

NOTE: The sensor must be installed in a location where moisture cannot drip or come in contact with the heated element. Any contact with condensed moisture in the gas flow will cause a false high flow indication. Consider mounting the probe at a 45° angle from top, from the side or bottom of the pipe to minimize possibility of condensed moisture running down the probe and contacting the sensor (see Figure 6). In extreme cases, it may be necessary to insulate or even heat trace the pipe to prevent the condensation of moisture.

The TA2 with an insertion probe provides a point measurement and assumes that a fully developed profile exists.

See Appendix A. The user has the ability to compensate the flow measurements based upon flow profile considerations under the Advanced Configuration section of the software. See Section 2.5.11.

NOTE: If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired.


2.4

Wiring

There are two connections in the electronics enclosure for

3

⁄

4

" NPT or M20 connections. These are generally used as one connection for input power and one for output signal.

Front

Compartment

Rear

Compartment

2.4.1 Power and Signal Connection

The instrument has separate wiring connections for AC (100 to 264 VAC) and DC (15 to 30 VDC). AC power wiring connections are made to terminal block TB1. DC connections are made to terminal block TB2. Refer to Figure 8.

NOTE: The AC power terminal blocks accept 12-22 AWG wire and the DC power terminal blocks accept 14-30 AWG wire. Select wire size consistent with power requirements. The mA output and pulse output also accept 14-30 AWG wire.

For a maximum ambient temperature of 80° C use wiring rated up to 264 VAC and 105° C. For a maximum ambient of 70° C use wire rated up to 264 VAC and 95° C.

Caution: OBSERVE ALL APPLICABLE ELECTRICAL CODES

AND PROPER WIRING PROCEDURES.

Figure 7

Wiring Housing Cover

1. Make sure the power source is turned off.

2. Unscrew and remove housing cover of rear compartment.

Refer to Figure 7.

3. Pull power supply and control wires through conduit connection.

4. Connect power leads to proper terminals. Refer to Figure 8.

AC Power input

(100 – 264 VAC)

TB1

DC Power input

(15 – 30 VDC)

TB2

Analog Output 1


TB3

Pulse/Alarm Output


TB4 a. VAC (100 to 264 VAC) Make connections to TB1.

Connect hot wire to terminal marked L1 and the second wire to the terminal marked L2.

b. DC (15 to 30 VDC)–Make connections to TB2. Connect wires to terminals (+) and (-) on the terminal block.

AC INPUT

100-264 VAC

50/ 60Hz

TB1

F1

DC INPUT

-

TB2

F1

TEST

+

LOOP1/HART

OUTPUT

P-

A-

P+

PULSE/

ALARM

A+ P-

A-

P+ A+

F2 TEST

TB3

P-

TB5

P+

LOOP2

OUTPUT

TB4

R1

POWER

D6

Analog Output 2

Passive connections only

TB5

NOTE: The green screw in the rear of the housing should be used for earth ground.

5. Connect the 4-20 mA signal wiring to terminal block TB3.

Refer to Section 2.4.3.

6. If the TA2 model has the optional pulse/alarm output, connect the signal wiring to terminal block TB4.

Connections for both an active (powered) connection and a passive (requires external power supply) are provided.

Refer to section 2.4.4.

7. The TA2 has the optional second mA output connect signal wiring to terminal block TB5. This output is a passive connection requiring an external power supply.

8. Replace housing cover. Installation is complete.

Figure 8


Input Wiring Board

Caution: In hazardous areas, do not apply power to the unit until the conduit is sealed and the enclosure cover is screwed down securely.

NOTE: Install using Teflon ® tape at all conduit entries (maximum 2 turns).


9

2.4.2 Ground Connection

The instrument must be grounded in accordance with

Article 250 of the National Electric Code.

AC INPUT

100-264 VAC

50/ 60Hz

TB1

F1

DC INPUT

-

TB2

+

LOOP1/HART

OUTPUT

P-

A-

P+

PULSE/

ALARM

A+ P-

A-

P+ A+

TB3

P-

TB5

P+

Figure 9


Input Wiring Board

LOOP2

OUTPUT

TB4

R1

POWER

2.4.3 4-20 mA Output

D6

NOTE: If using both the passive pulse output and second mA output see Appendix B.

A 4-20 mA output (Analog Output 1) of the flow rate is available at terminal block TB3. This output signal is isolated from the instrument. An active or a passive connection is available—see definition below.

For units with the optional second mA output (Analog

Output 2) this connection is available at terminal block

TB5; this output is isolated from the input power and from the primary 4-20 mA loop and shares a common with the pulse output. A passive connection is only available for this loop.

Active Connection—Use the active connection when the TA2 is providing power for the 4-20 mA signal.

Use connections A- and A+ (see figure 8). The active connection will drive a 1000-ohm loop resistance.

Passive Connection—Use the passive connection when an external power supply or the control system is used to power the 4-20 mA loop. Use connections

P- and P+ (see figure 8). The resistance is dependent upon the customer-supplied power supply.

2.4.4 Pulse/Alarm Output

The optional pulse signal is isolated from the input power and from the primary mA loop output. This signal shares a common with the secondary mA output (Analog Output 2).

The pulse output is available with either an active or passive connection.

Pulse/alarm output—Use the active connection when the

TA2 is providing power for the pulse/alarm output. Use connections A- and A+ on TB4 (see figure 8).

Use the passive connection when an external power supply is used to provide power to the pulse/alarm. Use connections

P- and P+ on TB4.

NOTE: Electrical specifications for pulse and alarm output are specified below.

• Pulse Output:

• Active: 24 VDC (±10%) power, 150 mA

• Passive: 2.5 to 60 VDC power, 1.5 Amps

• Alarm Output:

• Active: 24 VDC (±10%) power, 100 mA

• Passive: 2.5 to 60 VDC power, 1 Amp.

10


Power/Loop Board in

Electronics Housing

J1

1 2

3

4 5

6

TB

1

7 8

9 1

0 1

1

2.4.5 Remote Electronics

If the electronics are remote from the probe, a remote board with terminal blocks is provided in the housing on the probe. For cable lengths up to 150 feet, the connection between the probe and electronics should be an 8-conductor shielded cable (Belden 8104). For cable lengths up to

500 feet, a 10-conductor shielded cable (Belden 8305) is used. This cable length can be adjusted in the field. If cable other than the recommended Belden cable is used, following are the maximum resistances which should be utilized:

8 Conductor – maximum resistance of 5.4 ohms

10 Conductor – maximum resistance of 10.0 ohms

Caution: The probe and electronics are calibrated and shipped as a matched set. The model number is indicated on both the electronics nameplate and the probe nameplate; verify that they are the same.

TB2

1 2 3 4 5 6 7 8 9 10

To Probe

Figure 10

Probe Housing

REMOTE WIRING CABLE CONNECTIONS

Belden 8104

Max 200 Feet

(60 meters)

Wire Color

Green/White

White/Green

Blue/White

White/Blue

Brown/White

White/Brown

Orange/White

White/Orange

Shield

Belden 8305

Max 500 Feet

(150 meters)

Wire Number

TB2 connection

Probe Housing

TB1 connection at

Circuit Board in Electronics

1

2

3

1

2

3

1

2

3

4

5

6

7

8

9

10

Shield

4

5

6

7

8

9

10

Not used

7

8

9

4

5

6

10

11

2.4.5.1 Probe Wiring

The probe housing contains a remote board with terminal blocks for ease of wiring between the probe and the electronics. An 8-wire (Belden 8104) or 10-wire (Belden

8305) shielded interconnecting cable from the probe housing to the instrument is required. Refer to Figure 10 for wiring connections inside the probe housing and for remote cable wiring from the probe housing to the electronics housing.

1. Remove electrical power to the instrument.

2. Remove and unplug the display module if provided.

3. Remove the two hex head fasteners using a 1 ⁄

4

" socket. This will remove a module consisting of the processor circuit board and the power loop circuit board.

4. Unplug the electrical connections at J1 of the power loop board.

5. Probe wiring connections are made to TB1 on the same side of the power loop circuit board. Refer to Figure 10.

6. Reattach the electrical connections to J1.

7. Reassemble the circuit boards in the enclosure. Make sure that the probe wiring does not get pinched between the standoffs on the circuit board and the attachment lugs in the housing.

8. Reinstall the display module if provided.

9. Apply power to the instrument.


11

12

Figure 11

Display Module can be Rotated

2.5

Configuring the Transmitter

The TA2 electronics are easy to set up and configure to the user’s specifications. When specified with the order, the configuration settings are programmed into the instrument at the factory. If not, or if the user wants to modify the configuration settings, follow these instructions for configuring the instrument. The primary structure of the software is divided into eight main groups:

Measured Values

Basic Config

I/O Config

Advanced Config

Device Info

Diagnostics

Factory Configuration

Run Mode

View Selected Values

Configuration of essential programming information

Configure all input/output functions

Additional configuration which affects the unit operation

Provides information on the instrument

Test operation of instrument

Factory calibration information

Normal operating mode

All necessary information can be input using the 4-button keypad located on the display module or via HART if supplied. If the TA2 is supplied with HART, PACTware

™ can be used to review or change configuration.

NOTE: The Display Module can be rotated in 90-degree increments.

Remove cover, remove the two screws holding the display module, rotate to desired location and reattach display module. See Figure 11.

2.5.1 Initialization

When power is first applied to the TA2 there is an initialization period for the sensor to reach stabilization. During this time the TA2 will output a 4 mA signal and the display (if provided) will read “Initializing.”

Only after the sensor has stabilized and a valid flow measurement is obtained will the display show a flow measurement. The output signal will be active and the totalizer will begin counting.



2.5.2 Operator Keypad

The TA2 has a local user interface using a 2 -line ¥ 16character liquid crystal (LCD) and 4-push-button keypad.

All measurement data and configuration information is shown in the LCD.

The TA2 is configured via a “tree” type menu structure where it is easy to access branches of the tree to configure the various parameters. The four push buttons have different functions for various operating modes in the menu structure.

2.5.2.1 Menu Traversal Mode

Push Button

Up

Keystroke Action

Moves to the previous menu

Down Moves to the next item in the menu

Back Moves back one level to the previous higher branch

Enter Enters into the lower level branch

2.5.2.2 Item List Selection

Data is selected from a pre-specified list of entries. When

Enter key is depressed on a menu item the following modes are available. The symbol (

◊) is shown on the right most character of the 2nd line to indicate that various selections are available.

Push Button Keystroke Action

Up Moves to the previous selection in the list

Down Moves to the next selection in the list

Back

Enter

Returns to the previous mode without changing selection

Accepts the selection and returns to the menu traversal mode

NOTE: If a key is not pressed for 5 minutes, the display returns to the run mode.

13

2.5.2.3 Numeric Entry

The Numeric Entry Mode is used to enter numeric values.

This mode is accessed when the Enter Key is pressed on a menu item that requires entry of a numeric value. Data is entered at the cursor position:

Push Button

Up

Down

Back

Enter

Keystroke Action

Moves to the next digit (0,1,2,3…9). If held down the digits scroll until the push button is released. The leftmost position cycles between “–” (minus symbol) and blank.

Moves to the next digit (9,8,7,6…0). If held down the digits scroll until the push button is released. The leftmost position cycles between “–” (minus symbol) and blank.

Moves the cursor to the left and deletes the digit. If the cursor is located at the leftmost position the entire value is deleted and the previous saved value is displayed.

Moves the cursor to the right. If the cursor is located at a blank position, the new value is saved and the display returns to the previous menu.

NOTE: Numeric entries are left justified and new values are entered from left to right. A decimal point can be entered after the first digit is entered. The leftmost position used for either a “–” negative symbol or blank which implies a positive value.

14



Push button

2.5.2.4 Character Data Entry Mode

This mode is most commonly used when entering a new local tag line into the TA2. The local tag as shipped from the factory is “MAGNETROL TA2” and can be changed to permits the user to identify the instrument with a the actual tag line of the instrument or the service. When this mode is entered, a cursor marks the leftmost character on the 2nd line.

Keystroke Action

Up

Moves to the next character (Z, Y, X, W, …). If held down the characters scroll until the push button is released.

Down

Back

Enter

Moves to the previous character (A, B, C, D, …). If held down the characters scroll until the push button is released.

Moves the cursor to the left. If the cursor is located at the leftmost position the screen is exited without changing the original characters.

Moves the cursor to the right. If the cursor is located at the rightmost position the new value is saved and the display returns to the previous menu.

Push button

Up

Down

Back

Enter

2.5.2.5 Increment/Decrement Digit Mode

The Increment/Decrement digit entry mode is used with some screens for changing numeric values.

Keystroke Action

Increases the displayed value. If held down the digits scroll until the push button is released. Depending upon what screen is being revised, the increment amount may change by a factor of 10 after the value has been increased 10 times.

Decreases the displayed value. If held down the digits scroll until the push button is released. Depending upon what screen is being revised, the decrement amount may change by a factor of 10 after the value has been decreased 10 times

Return to the previous menu without changing the original value which is immediately redisplayed.

Accepts the displayed value and returns to the previous menu.

15

2.5.3 Password

A password protection system restricts access to portions of the menu which affect the unit’s operation and configuration. The default user password installed in the TA2 at the factory is 0 which effectively disables the user password feature. This allows complete configuration to be done without entering a password.

If desired, a new user password can be entered in the

Advanced Configuration in the New Password screen.

The password can be changed to any numerical value up to 255. Once the password is changed from the factory default value of 0 then the new password will be required whenever any configuration values are changed.

2.5.4 Configuration Menu Overview

Configuration of the TA2 is performed by use of a treelike menu structure. The chart at right shows an overview of the top level menu items. This basic configuration structure is used both with the user interface using the

16-character display and keypad and in the HART menu structure (see section 2.6.3).

16


Home

TA2 User Interface

Menu Hierarchy Overview

Measured Values

See Page 18

Basic Config

See Page 20

Flow Area


I/O Config

See Page 21

Advanced Config

See Page 26

Device Info

See Page 29

Diagnostics

See Page 30

Factory Config

See Page 36

AO1 Loop Config

See Page 21

AO2 Loop Config

See Page 21

Totalizers

See Page 23

Secondary loop, Transistor

Output and HART ® configuration are optional

History

See Page 30

Signal Value

See Page 30

17

18

2.5.5 Run Mode

The Run Mode is the normal display for the TA2. The user has the option of selecting displayed values such as

Flow, Mass, Temperature, Totalized Flow, Tag Line,

Custom Units, or mA output. These values will rotate at

2-second intervals on the display during operation. Run

Mode appears on power-up or after a 5-minute period with no keypad activity.

The main menu is used to access the various subroutines.

From the Run mode, press any key to enter the Main

Menu. The following describes the various selections available.

2.5.6 Measured Values

The Measured Values menu is used to display the current values measured by the TA2 and determine which parameters will be shown on the display during run mode. Enter this section by pressing when Measured Values is displayed from the Main Menu.

From the factory, the Home Menu will show the tag line and the flow value. To add or remove parameters from the

Home Menu press the key. Use the or keys to add (On Main Disp) or remove (Off Main Disp) variables.

To return to the rotating Home Menu, simply press the key twice.

Note that the Second Loop current (AO2 Loop Current) and Alarm Status are available only on units where these options have been purchased.


start

Model TA2 [HT, NP]

Ver 2.0 a0

* [label] *

[string or value]

UP

DN

ENT

DEL

Rotating screens

* Status *

[fault or warning]

Shown only if fault or warning

DEL

DEL

DEL

DEL

DEL

UP

DN

Measured Values to select

UP

DN

Basic Config to select

UP

DN

I/O Config to select

UP

DN

Advanced Config to select

UP

DN

Device Info to select

UP

DN

Diagnostics to select

UP

DN

DEL


Home and Associated Menus

Factory Config to select

UP

DN

ENT

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

UP

DN

A01 Loop Curr nn.nn mA

UP

DN

A02 Loop Curr nn.nn mA

UP

DN

Local Tag

Magnetrol TA2

UP

DN

Custom Units nnnn units

UP

DN

Alarm Status nnnn units

UP

DN

Previous Menu to select

UP

DN

UP

DN

Flow nnn units

UP

DN

Mass nnn units

UP

DN

Process Temp nnn units

UP

DN

R Totalizer nnnn units

UP

DN

NR Totalizer nnnn units

ENT

ENT

ENT

On Main Disp

Off Main Disp

ENT

ENT

ENT

ENT

ENT

ENT

ENT

ENT

Secondary loop and alarm are only available on units which have these options

(Model TA2-A4XX-XXX).


19

2.5.7 Basic Configuration Menu

The Basic Configuration menu is used to select the display units and enter specific information for the application. Access this section by pressing Enter when Basic Config is displayed from the Main Menu.

To calculate the flow or mass, it is necessary to accurately enter the inside area of the pipe or duct. If the pipe or duct is circular, simply enter the inside diameter; the cross sectional area of the pipe is automatically calculated. If the duct is rectangular, skip over the entry of diameter, and directly enter the cross sectional area in the area section. The instrument will then back calculate an equivalent diameter.

Basic Config

–> to select

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

ENT

DEL

UP

DN

Language

[selection]

UP

DN

Flow Units

[selection]

UP

DN

Mass Units

[selection]

UP

DN

Temp Units

[selection]

UP

DN

Density Units

[selection]

UP

DN

Diameter Units

[selection]

UP

DN

Area Units

[selection]

UP

DN

Flow Area to select

UP

DN


ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

English

Francais

Deutsch

Español

Русс

К ий

SCFM

SCFH

SCFD

MSCFD

MM SCFD

Nm3/min

Nm3/h

Nm3/d

NI/min

Nl/h

NI/d lbs/min lbs/h lbs/d kg/min kg/h kg/d

Fahrenheit

Celsius lb/ft3 kg/m3 inches feet meters millimeters in2 ft2 m2 mm2

Pipe ID

[selection]

UP

DN

Area

[selection]

ENT

DEL

ENT

DEL


System Configuration Menu

decimal entry in selected units decimal entry in selected units

Configuration Parameter Explanation

Language

Flow Units

Mass Units

The TA2 can be configured in English (default value), French, German,

Spanish or Russian

Selection of SCFM, SCFH, SCFD, MSCFD, MMSCFD, Nm 3 /min, Nm 3 /h, Nm 3 /d,

NI/min, Nl/h NI/d. Should other units of flow be desired, the

Custom Unit feature can be used in the Advanced Configuration Menu

Selection of lbs/min, lbs/h, lbs/d, kg/min, kg/h, kg/d. Should some other units of flow be desired, the

Custom Unit feature can be used in the Advanced Configuration

Menu

Selection of Fahrenheit, Celsius

Temperature Units

Density Units

Diameter Units

Area Units

Flow Area lb/ft

Selection of inches, feet, meters, mm in

2

3 , kg/m 3

(square inches), ft

2

(square feet), m

2

(square meters), mm

2

(square mm)

The TA2 requires entry of the pipe size or flow area to properly calculate the flow rate.

This can either be entered by specifying the ID of the pipe or the flow body or by entering the flow area. Units of measurement are specified above.

20


2.5.8 I/O Configuration Menu

The I/O Configuration menu is used to set up the operations of 4–20 mA output, the totalizer, and the pulse/alarm output.

I/O Config to select

Secondary loop configuration is only available on units which have this option.

Transistor Output configuration is only available on units which have this option.

DEL

DEL

DEL

DEL

DEL

ENT

DEL

UP

DN

A01 Loop Config to select

UP

DN

ENT

DEL

DEL

DEL

DEL

A02 Loop Config to select

ENT

DEL

DEL

UP

DN

Loop Control

[selection]

UP

DN

LRV (4 mA) Set

[entered value]

UP

DN

UP

DN

DEL

Totalizers to select

ENT

DEL see page 23 for Totalizer

Configuration

UP

DN

Transistor Out to select

UP

DN

ENT

DEL see page 24 for

Transistor Output

Configuration

Damping (0 –15)

[entered value]

ENT

DEL

URV (20 mA) Set

[entered value]

UP

DN


UP

DN

[inc/dec]

0–15

UP

DN


UP

DN

Loop Control

[selection]

UP

DN

LRV (4 mA) Set

[entered value]

UP

DN

URV (20 mA) Set

[entered value]

UP

DN

Fault State

[selection]

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

Flow

Mass decimal entry in selected units decimal entry in selected units

22 mA

3.6 mA

Hold

Flow

Mass

Process Temp decimal entry in selected units decimal entry in selected units


I/O Configuration Menu


21

The previous page shows the I/O configuration menu for setting up the 4-20 mA loop, the Totalizers, and the

Damping. The basic TA2 has a single 4-20 mA loop referred to as AO1. Optionally the TA2 can be provided with a second 4-20 mA loop referred to as AO2 and a

Transistor Output that can be configured to provide either a Pulse Output or an Alarm Output (see page 10 for specifications). The configuration menu for the Totalizers is shown on page 23 and the Transistor output is shown on page 24.


Loop Control

LRV (4 mA) Set

URV (20mA) Set

Selects which measurement (Flow or Mass) will control the mA loop (AO1) output.

AO2 permits selection of mA value for Temperature, Flow or Mass; Temperature is the default selection.

Enter the desired Lower Range Value (LRV) or the 4 mA value

Fault State

Previous Menu

Enter the desired Upper Range Value (URV) or the 20 mA value

Select 3.6 mA, 22 mA or Hold (last value). Note that the Fault State is only configurable on the primary loop (AO1).

Previous Menu exits the 4-20 mA Configuration Menu


Totalizer

Transistor Output

Damping

The TA2 provides both a resettable and a non-resettable totalizer.

Configuration information on the totalizers is found on page 23.

Provides either a Pulse output which is proportional to the flow rate or an alarm which can be used as a low flow or high flow indication. Configuration information begins on page 24.

Increasing the Damping will smooth the TA2 display and the loop output. This may be used in cases when turbulence is causing fluctuations in the measurement.

The damping value is expressed in time constants. A one-second time constant means that with a step change in flow, the measured flow value will reach approximately

63% of the new value in one second and approximately 99% of the new value in five seconds. The lower limit is 0 which means no damping (other than the inherent response time of the sensor); the upper limit is 15 seconds.

2.5.9 Totalizer

The totalizer provides seven digits of resolution. In the event of a fault indication, the totalizer will not accumulate. When the value in the totalizer exceeds 9,999,999, the totalizer will rollover. The Total Time will keep counting.

Both the Resettable and Non-Resettable totalizers have individual multiplier factors which can be used to prevent too frequent rollover and potential loss of data.

The Totalizer data is stored in nonvolatile memory, eliminating the need of backup batteries. Data is written hourly.

22


NR Totalizer

NR Total Time

Totalizers to select

Configuration Parameter

Totalizer Units

R Total Mode

R Total Mult

R Totalizer

R Total Time

R Totalizer Reset

NR Total Mult

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

ENT

DEL

UP

DN

Totalizer Units

[selection]

UP

DN

R Total Mode

[selection]

UP

DN

R Total Mult

[selection]

UP

DN

R Totalizer nnnnnnn units

UP

DN

R Total Time nnnnnh nnm nns

UP

DN

R Totalizer

Reset

UP

DN

NR Total Mult

[selection]

UP

DN

NR Totalizer nnnnnnn units

UP

DN

NR Total Time nnnnnh nnm nns

UP

DN


ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

SCF

Nm 3

Nl lb kg

Disabled

Enabled

1

10

100

1,000

10,000

100,000

Are You Sure?

[selection]

1

10

100

1,000

10,000

100,000

ENT

DEL



Totalizers

No

Yes

Explanation

The Totalizer Units permits selection of the units for both the resettable and the non-resettable totalizers. Select SCF (Standard Cubic Feet), Nm

3 lb (Pounds), or kg (Kilograms).

(Normal Cubic Meters), Nl (Normal Liters),

R Total Mode allows the user to enable or disable the Resettable totalizer. The default mode is Enabled.

The R Total Mult permits selection of the multiplier to be used for the resettable totalizer. The function of the totalizer multiplier is such that if the units are SCF and the multiplier is set to 100, then the totalizer will increment for each 100 SCF. The default value is 1.

This is a read-only screen that displays the present value of the resettable totalizer.

This is a read-only screen that displays the time that has elapsed since the resettable totalizer was last reset.

The R Totalizer Reset screen allows the user to reset the total flow and elapsed time of the resettable totalizer to zero. Since this action will permanently lose this data, a second chance is provided with an

“Are you sure” selection.

The NR Total Mult permits selection of the multiplier to be used for the Non-resettable totalizer.

The function of the totalizer multiplier is such that if the units are SCF and the multiplier is set to 100, then the totalizer will increment for each 100 SCF. The default value is 1000.

This is a read-only screen that displays the value of the Non-resettable totalizer.

This is a read-only screen that displays the time that corresponds to the value of the NR Totalizer.


23

24

2.5.10 Transistor Output

The optional transistor output can be configured to provide a pulse output proportional to the flow rate or an alarm indication where the output can serve as a low flow or a high flow alarm indication.

When used as a pulse output a multiplier factor can be applied. A selection of maximum frequency ensures that the pulse output from the TA2 does not exceed the maximum allowable frequency of any external counter. The default is 10 KHz.

Transistor Out to select

DEL

ENT

DEL

UP

DN

Output Function

[selection]

UP

DN

Pulse Out Config

[to select]

ENT

DEL

ENT

DEL

DEL

DEL

UP

DN

Alarm Config to select

UP

DN


UP

DN

Pulse Output

Alarm

Disabled

DEL

DEL

DEL

Pulse Out Units

[selection]

UP

DN

Multiplier

[selection]

UP

DN

Frequency

[selection]

UP

DN


ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

DEL

DEL

Alarm Set Point

[entered value]

UP

DN

Alarm Operation

[selection]

UP

DN


ENT

DEL

Flow or mass units per the Primary Variable decimal entry

ENT

DEL

High Flow

Low Flow



SCF

Nm3

Nl lbs kg

0.0001

0.001

0.01

0.1

1

10

100

1000

10

100

1000

10000



Output Function

Pulse Output Units

Multiplier

Frequency

Alarm Set Point

Alarm Operation

Explanation

Selects the operation of the transistor output. Can be set up for Pulse Output,

Alarm, or Disabled. Default is disabled.

Permits selection of the units for the pulse output. Select SCF (Standard Cubic Feet),

Nm 3 (Normal Cubic Meters), Nl (Normal Liters), lb (Pounds), or kg (Kilograms).

Use this factor to match the pulse output from the TA2 with the input of the remote totalizer or counter. The value represents the flow in selected units which correspond to one pulse output.

Selects maximum frequency output from the TA2. This should match the maximum input frequency of the external counter/totalizer. For instance: mechanical totalizers will have a lower maximum frequency.

Enter the desired set point for the alarm. Units are same as those selected under AO1 loop control. The alarm contacts will change state when this value is reached. There is a built in hysteresis requiring the flow to change by 10% for the switch to reset.

Choose Low Flow or High Flow. When Low Flow is selected, the contacts will remain closed at flow rates above the set point value and will open when the flow rate is equal to or less than the entered set point value. If High Flow is selected, the contacts will remain closed at flow rates below the set point value and will open when the flow rate is equal to, or greater than, the entered set point.

2.5.10.1 Pulse Rate Calculation Example

NOTE: See Appendix C example.


25

2.5.11 Advanced Configuration Menu

The Advanced Configuration menu sets advanced parameters that may occasionally be required for proper operation of the TA2.

26

Advanced Config to select

ENT

DEL

DEL

UP

DN

New Password

[entered value]

UP

DN

Install Factors to select

ENT

DEL decimal entry

ENT

DEL

DEL

UP

DN

A+Bx+Cx^2, A=

[entered value]

UP

DN

A+Bx+Cx^2, B=

[entered value]

ENT

DEL

ENT

DEL decimal entry decimal entry

DEL

DEL

DEL see next page

GasCal Table A / B

[selection]

UP

DN

Auto Switching

[selection]

UP

DN

STP Conditions to select

UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

DEL


UP

DN

Advanced Configuration Menu

DEL

DEL

DEL

A+Bx+Cx^2, C=

[entered value]

UP

DN


UP

DN

Table A

Table B

UP

DN

Disabled

Enabled

UP

DN

Temperature

[entered value]

UP

DN

Pressure

[selected value]

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL decimal entry decimal entry in selected units

1 atm

1 bar


DEL

UP

DN

Custom Unit to select

UP

DN

DEL

D/A Trim A01 to select

UP

DN

DEL

D/A Trim A02 to select

UP

DN

DEL


UP

DN

ENT

DEL

DEL

DEL

UP

DN

Custom Unit Text

[entered value]

UP

DN

Custom Unit Mult

[entered value]

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

DEL

DEL

UP

DN

D/A Trim 4 mA

[value]

UP

DN

D/A Trim 20 mA

[value]

UP

DN


UP

DN

ENT

DEL

ENT

DEL alphanumeric entry

(6 characters) decimal entry

[inc/dec]

[inc/dec]

ENT

DEL

DEL

DEL

UP

DN

D/A Trim 4 mA

[value]

UP

DN

D/A Trim 20 mA

[value]

UP

DN


UP

DN

ENT

DEL

ENT

DEL

[inc/dec]

[inc/dec]


Secondary loop configuration is only available on units which have this option.

Advanced Configuration Menu (cont)


27

28


New Password

Install Factors

Gas Cal Table A/B

Auto Switching

STP Conditions

Custom Units Text

Custom Unit Mult

D/A Trim 4mA

D/A Trim 20mA

Explanation

The default password is 0 which effectively disables the password feature.

This allows the configuration to be modified without entering a password.

If desired, a different password can be entered in the

New Password screen.

The password can be changed to any numeric value up to 255. If the password is changed from the factory default of 0, then the new password will be required whenever any configuration values are changed. If the user changes the password, the display will show an encrypted value. Contact MAGNETROL Technical Support with this value to determine the actual password which was last entered.

Permits the user to enter field adjustment factors to make adjustments to the flow measurement. These might be due to flow profiles considerations. The formula is a second order polynomial equation where adjusted flow = a + bx + cx

2 where x is in units selected for AO1 (Analog Output 1) Loop Control. Linear adjustments

(changing the B factor) are the simplest. Ensure that units of measurement are finalized before Install Factors are determined. Changing units of measurement after Install Factors are calculated can result in reset of the Install Factors and a warning message.

Permits the user to select calibration for two different gases. If specifically ordered with calibration for two different gases, then each gas table will represent the calibration data for each gas. If calibrated for a gas other than air, the “A” table will represent the calibration data for the specified gas and the “B” table will represent the calibration data for air within a selected calibration range. The two gas tables can also be used for different ranges of the same gas.

Allow automatic switching between a low flow Table A and a high flow Table B. It is necessary to have a dual calibration and distinct flow rate differences between tables in order to perform switching function.

Permits the user to select STP (Standard Temperature and Pressure) conditions.

Also referred to as Standard Conditions or Normal Conditions. Any value for temperature can be entered. Pressure can be selected to be 1 Atmosphere or 1 Bar.

Adjustment of the STP conditions will affect the flow calculations.

The TA2 permits the user to create any desired units of flow measurement that is not shown in the standard selection. The user can select the text for the custom units using up to a 6-character abbreviation.

This multiplier is used to calculate the

Custom Unit value. The Custom Unit value is equal to the Loop Control Variable selected under AO1 Loop Control times this custom multiplier. See example in section 2.5.11.1.

Permits the user to fine tune the 4 mA point. This is done at the factory; yet, there may be differences in control systems. To adjust the 4 mA point, use the up or down arrows until the control system indicates 4 mA.

Permits the user to fine tune the 20 mA point. This is done at the factory; yet, there may be differences in control systems. To adjust the 20 mA point, use the up or down arrows until the control system indicates 20 mA.

2.5.11.1 Custom Unit Multiplier Example

If the AO1 Loop Control is selected to be Nm 3 /h and the user desires to use custom units on

NL/min, the multiplier 16.67 (1000/60) is used to adjust the flow measurements in Nm 3 /h to

Nl/min.


2.5.12 Device Information

This section is used to display information about the device. Also in this section is the ability for the user to enter a local tag describing the location of the instrument.

Device Info to select

DEL

DEL

DEL

DEL

DEL

DEL

DEL

ENT

DEL

UP

DN

Input Local Tag

[entered value]

UP

DN

Magnetrol S/N

[value]

UP

DN

Magnetrol M/N

[entered value]

UP

DN

Model TA2 [HT | NP]

[Ver 2.0 a0]

UP

DN

Input HART Tag

[entered value]

UP

DN

HART Poll Addr

[entered value]

UP

DN

HART Device ID

[entered value]

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL alphanumeric entry

(16 chars)

TA2-A0

TA2-A1

TA2-A4 alphanumeric entry

(8 chars)

[inc/dec]

0-15 integer entry

HART configuration is available on units which have HART on the primary loop.


Device Information Menu


Input Local Tag

MAGNETROL S/N

MAGNETROL M/N

Model TA2[ ]

Input HART Tag

HART Poll Addr

HART Device ID


Explanation

From the factory this tag is shown as “MAGNETROL TA2” but this can be changed to describe the application or the flow transmitter number. The tag can contain a maximum of 16 characters. All upper and lower case letters, numbers and other characters are provided for the tag. See section 2.5.2.4 for details on entering characters.

Displays the MAGNETROL serial number of the instrument. This is needed if information on the specific instrument is desired in the future.

Displays the first 5 digits of the TA2 serial number. This is used by the firmware to determine what screens are shown in this user interface menu.

Provides information on the firmware used in this version of the TA2.

Enter a HART tag with length up to 8 digits. This screen is only visible on units with HART.

Select a HART Poll Address from 0 to 15. Enter 0 for a single installation.

Enter 1–15 for a multi-drop installation. Default value is 0. This screen is only visible on units with HART.

Required for units with HART. This screen is only visible on units with HART.

29

30

2.5.13 Diagnostics Menu

The Diagnostics Menu contains both informational items and diagnostic screens that can assist in obtaining information on the operation of the unit and troubleshooting if faults or warnings occur.

Diagnostics to select

DEL

DEL

DEL

DEL

DEL

DEL

DEL

DEL

ENT

DEL see next page

Delta Temp

[temp value]

UP

DN

Heater Setting

[integer value]

UP

DN

Max Process Temp

[max value]

UP

DN

Electronics Temp

[current value]

UP

DN

Max Elec Temp

[max value]

UP

DN

UP

DN

ENT

DEL

History

[current status]

UP

DN

Run Time nnnnh nnm nnsec

UP

DN

History

Reset

UP

DN

Signal xxx mW xxxx xx units

UP

DN

Previous Menu

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL to select

ENT

DEL

Run-time since history was reset.

Event nn

[Diagnostic Text]

Are You Sure?

[selection]

FxdSgl xxx mW xxxx xx units

Reset?

[selection]

Reset?

[selection]

UP

DN

ENT

DEL


Diagnostics Menu

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

No

Yes

No

Yes

No

Yes

Eventnn Occurred nnnnnh nnm nnsec

UP

DN

Eventnn Duration nnnnnh nnm nnsec



History

Explanation

Displays the present status and the sequence in which any diagnostic events may have occurred. The second line of the menu shows the present status. If there are no present diagnostic events, this screen will have

History on the top line and OK on the bottom line. Pressing d escends to a lower menu level to view diagnostics events that have been logged in

History. Each “event” is indicated by the event number label. The first event number label presented corresponds to the most recent diagnostic event. This event number also indicates the number of diagnostic events currently in the

History submenu. Pressing the or will cycle between the relative time of the occurrence and the duration of the event.

Run Time

History Reset

Signal

Delta Temp

Heater Settings

Maximum Process Temp

Electronic Temp

Max Elect Temp

Displays how much time has elapsed since the History was last reset.

Provides a means to clear all of the diagnostic events that are stored in the

History log.

Provides a live signal of the mW reading from the sensor. Also shown on the second line is the calculated flow rate. This is based on the units selected under

AO1

Loop Control. This data can be compared against the original calibration document to determine if there has been any change in the configuration.

Pressing enters the Fixed Signal Mode. When in this mode, pressing the or permits the user to change the signal; the TA2 then calculates the flow which corresponds with this signal. Press to return to the main menu.

NOTE: During fixed signal mode the mA output of AO1 will adjust with change in signal. The Totalizers will stop operation and the display will show the

“In Test Mode” message.

Displays the temperature difference between the two RTDs.

Displays the current value sent to the heater. This can be compared against an actual reading which can be obtained from connections on the circuit board.

See section 3.5.1.

Displays the maximum temperature which the sensor has recorded.

Displays the current temperature in the electronics enclosure.

Displays the maximum temperature which the electronics have recorded.


31

32

2.5.13 Diagnostics Menu (cont.)

DEL

DEL

UP

DN

Min Elec Temp

[min value]

UP

DN

Probe Status to select

UP

DN

DEL

Zero Power Test to test

ENT

DEL

Reset?

[selection]

ENT

DEL

ENT

DEL

ENT

DEL

DEL

UP

DN

Temp Sensor

OK/Shorted/Open

UP

DN

Flow Sensor

OK/Shorted/Open

UP

DN

Probe Heater

OK/Shorted/Open

UP

DN


UP

DN

UP

DN

Delta T Unstable

[temperature]

UP

DN

Amb T Unstable

[temperature]

UP

DN

UP

DN

No

Yes


Diagnostics Menu

DEL

DEL

UP

DN

Delta T Stable

[temperature]

UP

DN

Ambient T Stable

[temperature]

UP

DN

DEL

Low Cal Validate to test

UP

DN

ENT

DEL

DEL

UP

DN

Delta T Unstable

[temperature]

UP

DN

Amb T Unstable

[temperature]

UP

DN

Saved Test DeIT

[temp] [temp]

ENT

DEL

DEL

Save Temp?

[selection]

ENT

DEL

No

Yes



Min Elect Temp

Probe Status

Zero Power Test

Low Cal Validate

Hi Cal Validate

Explanation

Displays the minimum temperature which the electronics have recorded.

Press to select and then the or arrows to scroll between the Temp

Sensor, Flow Sensor, and Probe Heater. If the probe is operational, the display will show “OK”. If there is a problem with the probe, then the diagnostics will show either “Shorted” or “Open.” Press to return to the main menu.

Diagnostic test. Note that the mA output signal will be disabled during this test.

During this test the heater is turned off and the sensor is given time for the sensors to stabilize. The temperature difference between the sensors is displayed.

See section 3.5.2 for more information on this test.

The Low Cal Validate and the Hi Cal Validate test will verify that the heat transfer characteristics of the sensor have not changed. This test will verify that the unit is still within calibration. The tests are performed when off-line with the TA2 in air and in a water bath. See section 3.5.3 for more information on this test.


33

34

2.5.13 Diagnostics Menu (cont.)

DEL

UP

DN

Hi Cal Validate to test

UP

DN

DEL

ENT

DEL

UP

DN

Delta T Unstable

[temperature]

UP

DN

Amb T Unstable

[temperature]

UP

DN

Saved Test DeIT

[temp] [temp]

DEL

ENT

DEL

Save Temp?

[selection]

ENT

DEL

No

Yes

DEL

A01 Loop Test

[current value]

DEL

UP

DN

A02 Loop Test

[current value]

UP

DN

DEL

Pulse Output diagnostics are only available on units which have the optional

Transistor Output interface.

Test Pulse to select

UP

DN

DEL


UP

DN

ENT

DEL

[inc/dec]

ENT

DEL

ENT

DEL

DEL

[inc/dec]

UP

DN

Num Test Pulses

[selection]

UP DN

Pulse Out Test to test

Secondary loop configuration is only available on units which have the optional secondary loop.

ENT

DEL

5

10

25

50

100

250

500

1000

2500

5000

10000

ENT

DEL

Pulse Out Test

In Progress/Complete/Fail/Timeout

UP DN


UP

DN


Diagnostics Menu (cont)



AO1 Loop Test

AO2 Loop Test

Test Pulse

Explanation

Shows the current mA value output on the 4–20 mA output signal for the first (AO1) loop. This value can be increased or decreased by pushing the or arrows.

Pressing or returns the mA signal to normal operation.

Shows the current mA value output on the 4–20 mA output signal for the second

(AO2) loop. This value can be increased or decreased by pushing the or arrows. This menu selection is only shown on units that have the optional second mA loop. Pressing or returns the mA signal to normal operation.

Tests the pulse output signal by sending a specific number of pulses to the external totalizer/counter. TA2 must be configured for Pulse Output. See sections 2.5–10.

Test will fail if not configured for Pulse Output.

Once the specific number of pulses is selected, the user will then push the down arrow to the next screen to conduct the test. When the arrow is pressed, the TA2 will stop generating pulses based on the flow rate and will then generate the specified number of pulses selected. The display will show status.

At completion of the test, the screen will indicate that the test is complete. At this time the user can verify that this number of pulses has been received by the external device.

Press to conduct the test again; press two times to return to normal operation where the pulse is generated based on the measured flow rate. The TA2 will

“Time Out” and return to normal operation after 5 minutes if no action is taken.


35

2.5.14 Factory Configuration

Factory Config to select

DEL

DEL

DEL

ENT

DEL

UP

DN

Probe Params to select

UP

DN

Cal Parameters A to select

UP

DN

Cal Parameters B to select

UP

DN

Control Params to select

UP

DN

ENT

DEL

ENT

DEL see page 37 see page 38

ENT

DEL

ENT

DEL

DEL

DEL

DEL see page 38

UP

DN

Coeff Ratio

[entered value]

UP

DN

Slope

[entered value]

UP

DN

Power Predictor

[entered value]

UP

DN

Factory Param (1-5)

[entered value]

ENT

DEL

ENT

DEL

DEL

DEL

DEL

Module Params to select

UP

DN

NSPValue

[entered value]

UP

DN


UP

DN

ENT

DEL

ENT


Heater Calib

Factory configuration only.

decimal entry

If the password timer has expired, [entered value] will display the encrypted value of the password.


Factory Configuration Menu

36


Probe Params

Cal Parameters A

Cal Parameters B

Control Parameters

Module Params

Explanation

Provides the probe calibration parameters—see separate section 2.5.16.

Provides the calibration parameters for Gas A—see separate section 2.5.17.

Provides the calibration parameters for Gas B (if specified) — see separate section 2.5.17.

Factory set parameters which should only be changed under direction of MAGNETROL

Module Parameters—Factory set parameters


2.5.15 Probe Parameters

These parameters are specific characteristics defining the operation of the probe.

Probe Params to select

ENT

DEL

DEL

DEL

UP

DN

Sensor Type

[selection]

ENT

DEL

TXR

TXS

TXU

TFT

Spare 1

Spare 2

Spare 3

UP

DN

To

[entered value]

UP

DN

Fo

[entered value]

ENT

DEL

ENT


UP

DN

DEL

DEL

Probe Temp Calib

[OK/Bad/Calib

Required]

UP

DN


ENT

DEL

DEL

UP

DN

Temp Stabilizing

[lo temp ADC cnt] Temp

UP

DN

Temp Stabilizing

[lo temp ADC cnt] Flow

UP

DN



Probe Parameters

DEL

ENT

Enter Probe Temp

[temp reading]

ENT

DEL decimal entry


Sensor Type

To

Fo

Probe Temp Calib

Explanation

Selects the type of sensor used with the TA2. Various sensors have different methods of calculating the flow rate.

Calibration parameter determined when calibrating the RTDs.

Calibration parameter determined when calibrating the RTDs.

Used during calibration of the RTDs. See section 4.3.


37

2.5.16 Calibration Parameters

There are two separate menus for Calibration Parameters titled Cal Parameters A and Cal Parameters B.

These two different sets of Calibration Parameters are used when the TA2 is calibrated on two gases or for two different ranges. If the unit is calibrated for air, then only Calibration Parameter A is used.

If the TA2 is calibrated for a different gas, then the calibration parameters for the specified gas is contained in Cal Parameters A, and the air calibration parameters are contained in Calibration Parameters B.

There is an identical menu structure for Cal Parameters B.

Cal Parameters A to select

ENT

DEL

Calib Table A nn Points

ENT

DEL

UP

DN

DEL

Table A Pt nn Pwr

[entered value]

UP

DN

ENT

ENT

Table A Pt nn Vel

[entered value]

UP

DN

[inc/dec pt #]

38


Calib Table A nn Points

Gas Parameters

Set Point

Zero Flow Signal

Low Flow Cutoff

Calibration Pipe Area

DEL

DEL

DEL

DEL

DEL

DEL

Gas Parameters to select

UP

DN

Set Point

[entered value]

UP

DN

Zero Flow Signal

[entered value]

UP

DN

Low Flow Cutoff

[entered value]

UP

DN

Calib Pipe Area to select

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL see page 39 decimal entry decimal entry decimal entry decimal entry



Cal Parameters A /B

Explanation

Provides actual calibration data points obtained during the calibration.

See section 2.5.17.

Indicates the temperature difference which the TA2 is attempting to maintain.

This parameter should only be changed under direction of MAGNETROL.

Used to adjust the zero flow data point, if necessary, for application-specific related issues.

See Troubleshooting Section 3.4.

The TA2 will ignore flow rates below this value. This can be changed for application-specific issues. See Troubleshooting Section 3.4.

See Recalibration section 4.4.


2.5.17 Gas Parameters

Contains specific information on the gas which are used in the TA2 calculations.

Gas Parameters to select

DEL

DEL

DEL

DEL

DEL

ENT

DEL

UP

DN

Temp Corr TCC-A

[entered value]

UP

DN

Temp Corr TCC-B

[entered value]

UP

DN

Temp Corr TCC-C

[entered value]

UP

DN

Gas Density

[entered value]

UP

DN

Air Equivalency to select

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL decimal entry decimal entry decimal entry decimal entry in chosen units see page 40



Gas Parameters menu exists for both Gas A and Gas B


TCC-A, TCC-B TCC-C

Gas Density

Air Equivalency

Explanation

Gas-specific factors used for temperature compensation. This parameter should only be changed under direction of MAGNETROL.

Provides the density of the gas at the specified STP (Standard Temperature and Pressure) conditions.

Contains factors which relate the relationship of the gas flow to the flow of air.

Contact MAGNETROL for factors specific to different gases.


39

40

2.5.18 Air Equivalency Calibration

The Air Equivalency calibrations permits the use of an air calibration and then, using the MAGNETROL historic data base, relate the flow of air to the flow of gas. The equations use a polynomial curve fit.

A fault will occur if the curve fit becomes non-monotonic (signal decreases with increasing flow) which can occur if operating outside the data range. Consult MAGNETROL regarding proper sizing with

Air Equivalency calibrations. The user may contact MAGNETROL to obtain air equivalency factors for various gases. These values should only be used when the TA2 was calibrated on air. If the calibration data in the Calibration Table is for a different gas, the results are invalid.


Enable/Disable

Ag - Eg

Explanation

Enables or Disables the Air Equivalency calculations

Factors in a Polynomial equation in the form of A + Bv + Cv 2 + Dv 3 + Ev 4 where v is the mass velocity. Contact MAGNETROL for factors

Air Equivalency to select

ENT

DEL

DEL

DEL

DEL

DEL

DEL

DEL

UP

DN

Air Equiv Mode

[selection]

UP

DN

Gas Coeff Ag

[entered value]

UP

DN

Gas Coeff Bg

[entered value]

UP

DN

Gas Coeff Cg

[entered value]

UP

DN

Gas Coeff Dg

[entered value]

UP

DN

Gas Coeff Eg

[entered value]

UP

DN


UP

DN

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

ENT

DEL

Disabled

Enabled decimal entry decimal entry decimal entry decimal entry decimal entry



Air Equivalency

Air Equivalency menu exists for both Gas A and Gas B


AC Power input

(100 – 264 VAC)

TB1

DC Power input

(15 – 30 VDC)

TB2

Analog Output 1

Output


TB3

AC INPUT

100-264 VAC

50/ 60Hz

DC INPUT

+

LOOP1/HART

OUTPUT

P-

A-

P+

F2 TEST

A+

PULSE/

ALARM

P-

A-

P+ A+

TB1

F1

TB2

F1

TEST

TB3

P-

TB5

P+

LOOP2

OUTPUT

TB4

R1

POWER

D6

Control

Room

Display

Current

Meter

Figure 12

Junction

R

L

> 250

Ω

Power

Supply

-

2.6

Configuration Using HART ®

A HART ® (Highway Addressable Remote Transducer) remote unit, such as a HART communicator, can be used to provide a communication link to the TA2.

When connected to the control loop, the same system measurement readings shown on the transmitter are displayed on the communicator. The communicator can also be used to configure the transmitter.

To confirm HART handheld communications, attach the unit as shown in figure 12. If the communicator reads

GENERIC on the first two lines, then the

HART handheld does not contain the current DDs

(Device Descriptions) for the TA2 transmitter.

Contact your local HART Service Center.

+

2.6.1 Connection

The TA2 can be used with a HART remote unit to provide communication of the process variables. The communicator can also be used for configuration of the transmitter.

The dynamic variables which can be transmitted over

HART are Flow, Mass, Temperature, and Totalized Flow.

The Primary Variable is Flow or Mass.

Virtually all configuration and diagnostics available via the user interface with the keypad and display are accessible via HART. See System Configuration Menu, Section 2.6.3.

A HART device can be connected to either the active or passive 4-20 mA output loop from AO1.

2.6.2 HART Revision Table

HART Version HCF Release Date Compatible with TA2 Software

Dev V2 DD V1 February 2016 Version 2.1b0 and later

2.6.3 HART Display Menu

When connected, the top line of each menu displays the model (TA2) and its tag number or address.

Open the TA2 online menu tree by pressing alphanumeric key 1 to enter the Device Setup menu.


41

2.6.3 HART Menu

1 Device Setup

2 Diagnostics

¿

3 PV

4 PV Loop

5 PV % Range

6 SV

7 SV Loop

8 SV % Range

9 Process Variables

1 Basic

Configuration

1 System Units

2 Flow Area

1 Flow Units

2 Mass Units

3 Temperature Units

4 Density Units

5 Totalizer Units

6 Diameter Units

7 Area Units

¿ See page 45.

42

1 Flow

2 Mass

3 Process

Temperature

4 R Totalizer

5 R Totalizer Time

6 NR Totalizer

7 NR Totalizer Time

8 Custom Unit

2 I/O

Configuration

1 AO1 Loop Config

2 AO2 Loop Config

3 Variable Mapping

4 Totalizers

5 Transistor Output

6 Damping

7 Poll Address

1 Output Function

2 Pulse Output Config

3 Alarm Config

1 Pipe ID

(flow body ID if TFT)

2 Flow Area

1 SV is

2 AO2 Lwr Range Val

3 AO2 Upr Range Val

1 PV is

2 AO1 Lwr Range Val

3 AO1 Upr Range Val

4 Fault State

1 TV is

2 QV is

1 Pulse Output

2 Alarm

3 Disable

1 Totalizer Units

2 R Totalizer Mode

3 R Totalizer Mult

4 R Totalizer

5 R Totalizer Time

6 Reset Totalizer

7 NR Totalizer Mult

8 NR Totalizer

9 NR Totalizer Time

1 Pulse Units

2 Pulse Multiplier

3 Pulse Max Freq

3 Advanced

Configuration

4 Device Information

5 Factory

Configuration

6 Review

1 Alarm Setpoint

2 Alarm

Operation

1 Install Factors

2 Gas Cal Table

3 Auto Switching

4 STP Conditions

5 Custom Unit

6 New User Password

7 D/A Trim AO1

8 D/A Trim AO2

1 Custom Unit Text

2 Custom Unit Mult

1 Low Flow

2 High Flow

1 Table A

2 Table B

1 STP Temperature

2 STP Pressure

1 A

2 B

3 C

1 Disabled

2 Enabled


2.6.3 HART Menu (cont.)

1 Device Setup

2 Diagnostics

3 PV

4 PV Loop

5 PV % Range

6 SV

7 SV Loop

8 SV % Range

9 Process Variables

1 Basic

Configuration

2 I/O

Configuration

3 Advanced

Configuration

4 Device Information

5 Factory

Configuration

6 Review

1 Local Tag

2 Descriptor

3 HART Tag

4 Poll Address

5 Date

6 Message

7 Date/Time/Initials

8 Manufacturer

9 Model Number

10 Specific Model

11 Firmware Version

12 MAGNETROL S/N

13 Device ID

14 Final asmbly num

1 Enter Password

2 Probe Parameters

3 Control Parameters

4 Module Parameters

5 NSP Value

6 Cal Parameters A

7 Cal Parameters B

1 Sensor Type

2 To

3 Fo

4 RTD Calibration

5 Calibrate RTDs

1 Coeff Ratio

2 Slope

3 Power Predictor

4 Factory Parameter 1





1 Heater Calibration

2 Calibrate Heater

1 Cal Table A

2 Gas Parameters

3 Set Point

4 Zero Flow Signal

5 Low Flow Cutoff

6 Cal Pipe Area

1 Cal Table B

2 Gas Parameters

3 Set Point

4 Zero Flow Signal

5 Low Flow Cutoff

6 Cal Pipe Area

1 TCC-A

2 TCC-B

3 TCC-C

4 Gas Density

5 Air Equivalency

1 TXR

2 TXS

3 TXU

4 TFT

5 Spare 1

6 Spare 2

7 Spare 3

1 TCC-A

2 TCC-B

3 TCC-C

4 Gas Density

5 Air Equivalency

1 Enable/Disable

2 Ag

3 Bg

4 Cg

5 Dg

6 Eg

1 Enable/Disable

2 Ag

3 Bg

4 Cg

5 Dg

6 Eg


43

2.6.3 HART Menu (cont.)

1 Device Setup

2 Diagnostics

3 PV

4 PV Loop

5 PV % Range

6 SV

7 SV Loop

8 SV % Range

9 Process Variables

1 Basic

Configuration

2 I/O

Configuration

3 Advanced

Configuration

4 Device

Information

5 Factory

Configuration

6 Review 1 Model

2 Manufacturer

3 MAGNETROL S/N

4 HART Tag

5 Descriptor

6 Firmware Version

7 Date

8 Message

9 Final asmbly num

10 Device ID

11 Poll Address

12 Date/Time/Initials

13 Universal rev

14 Fld Dev rev

15 Software rev

16 Num req preams

17 PV is

18 SV is

19 TV is

20 QV is

21 Pipe ID

22 Flow Area

23 AO1 Lwr Range

Value

24 AO1 Upr Range

Value

25 Fault State

26 Damping

27 AO2 Lwr Range

Value

28 AO2 Upr Range

Value

29 R Totalizer Mode

30 R Totalizer Mult

31 NR Totalizer Mult

32 Output Function

33 Pulse Units

34 Pulse Multiplier

35 Pulse Max Freq

36 Alarm Setpoint

37 Alarm Operation

38 Install Factor A

39 Install Factor B

40 Install Factor C

41 Gas Cal Table

42 STP Temperature

43 STP Pressure

44 Custom Unit Text

45 Custom Unit

Multiplier

46 AO1 4mA Trim value




44


2.6.3 Diagnostics Menu

1 Device Setup

2 Diagnostics

3 AO1

4 AO1 Loop

5 AO1 % Range

6 AO2

7 AO2 Loop

8 AO2 % Range

9 Process Variables

1 Present Status

2 History

1 Device Status

2 Reset Config chgd

3 Faults

4 Warnings

5 Informational

1 View History

2 Reset History

3 Extended Diagnostics

4 Trend Chart

1 PV

2 Signal

3 Exit Fixed Signal

4 Fixed Signal Value

1 Signal/PV

2 Delta T

3 Heater Setting

4 Process Temperature

5 Elect Temperature

6 Zero Power Test

7 Low Cal Validation

8 High Cal Validation

9 AO1 Loop Test

10 AO2 Loop Test

11 Test Pulse

1 Current Temperature

2 Max Temperature

3 Min Temperature

4 Reset Temperatures

PV Out of limits

Non-PV Out of limits

Loop Current Saturated

Loop Current Fixed

More status available

Cold start

Configuration changed

Device malfunction

Default Params

Fault 1

No Probe Signals

Temp Snsr Shorted

Temp Snsr Open

Flow Snsr Shorted

Flow Snsr Open

RTDs Reversed

Heater Shorted

Heater Open

ZFS Too High

Too Few Cal Pts

Air Equiv Coeff

User Coeff

Module Failure

Vel > UprSnsr Lmt

Initializing

AO2 Loop Fixed

In Test Mode

Vel > Upr Cal Pt

Vel < Low Flow Lmt

RTD Drive Current

Dflt Totalizer

Pulse Mult Error

Warning 2

AO1 Loop Trim Reqd

AO2 Loop Trim Reqd

Process Temp High

Check Install Factors

Elec Temp Hi

Elec Temp Lo

Warning 1

AO2 Loop Fixed

AO2 Loop Saturated

Set Pt > UprCalPt

Range Too Small

System code

1 Current Temperature

2 Max Temperature

3 Reset Temperatures


45

46

3.0

Reference Information

3.1

Description

The THERMATEL Model TA2 Thermal Mass Flow

Meter provides a mass flow measurement of air and other gases. The TA2 consists of a probe or flow body with electronics either integrally mounted on the probe or remotely located.

The electronics are rated for use in explosion proof service.

The unit will accept 15 to 30 VDC power or 100 to

264 VAC input power. Output from the TA2 is a 4-

20 mA signal of the mass flow rate. An optional version also provides a second mA signal which can represent the temperature or flow, and a pulse output.

The optional plug-in display module with four-button keypad permits the user to easily make changes in the configuration of the TA2 for application-specific conditions.

The display provides an indication of the mass flow, temperature and totalized flow, plus other selectable information.

Each instrument is calibrated and configured by

MAGNETROL for the type of gas, pipe size, flow area and flow rate. Calibration is performed in a NIST traceable flow bench.

The TA2 provides real-time temperature compensation which adjusts the flow measurement due to changing gas properties caused by process temperature changes.

3.2

Theory of Operation

The flow element of the TA2 Thermal Mass Flow Meter utilizes a heater and two resistance temperature detectors

(RTDs). The heater and the active RTD are contained in one sensor. The second sensor contains the reference RTD and a mass balancing element.

The reference RTD measures the temperature of the process where the flow element is installed. A variable power is provided to the heater. The active RTD measures the temperature of the heated sensor in a feedback loop to the electronics. The electronics vary the power to the heater to maintain a constant temperature difference between the active and reference RTDs. As the mass flow rate increases there is a cooling effect on the heated sensor.

The power to the heated sensor is controlled to maintain a constant temperature difference between the two sensors.

The amount of power required to maintain this temperature difference provides a measurement of the mass flow.



There is an inherent non-linear relationship between heater power and the mass flow rate. The microprocessor based electronics convert the heater power to provide a linear measurement of the mass flow rate. The electronics also provide real time temperature compensation which automatically adjusts the flow measurement for changes in process temperature over the entire operating range of the instrument.

The 4-20 mA output signal can be adjusted to provide maximum resolution of flow measurement over the calibration range of the instrument. The 4-20 mA signal can be wired for either active or passive operation.

The temperature measured by the reference RTD and the totalized flow can be viewed on the display, and is also available over HART communication. An optional version of the TA2 has a mA output of the temperature and also a pulse output that can be used for an external counter/totalizer or for an alarm indication.

3.3

Display Module

The Enhanced model TA2 has a back-lit, plug-in, rotatable display module. The display module consists of a 2-line ¥

16-character Liquid Crystal Display with four-push-button keypad for configuring the instrument, or for diagnostics.

The display can be rotated in 90-degree increments to permit viewing from various orientations. To rotate the display, remove the two screws on the front of the display module, rotate to the desired position, and reattach.

3.4

Troubleshooting

The TA2 Thermal Mass Flow Meter is designed for ease of use and trouble-free operation. The TA2 is shipped precalibrated and pre-configured based on information provided at time of order. The following lists possible problems and solutions to investigate.

WARNING!

Explosion hazard. Do not remove the TA2 housing cover unless power has been switched off or the area is known to be non-hazardous. Use of the

PACTware

™

PC program is highly recommended and invaluable for troubleshooting and advanced configuration. A HART RS232 or USB model

(purchased separately) is required.

See MAGNETROL PACTware

™ bulletin 59-101.

47

3.4

Troubleshooting

Symptom

No Output signal

No Display

No Output signal

Flow Measurement on display is correct but Output signal always 4 mA

Totalizer not operating

Flow is measured under a no flow condition

Flow Rate too high or too low

Flow Rate too high

Flow Rate too high, output spiking

Problem

No input power

4–20 mA output not operational

HART Poll Address is not 0

Solution

Verify that LED D6 on the input wiring board is on. If not, check wiring connections.

Check F1 test and F2 test to check fuses protecting input wiring. See Figure 8.

Verify that 4–20 mA connections are made to the correct terminals on TB3.

See section 1.2.

Change HART Poll Address to 0.

See section 2.5.12.

Totalizer is Disabled

Increased heat transfer.

This can occur under no flow with increased pressure.

Instrument configuration does not match actual application

Buildup on sensor

Flow Profile

Considerations

Moisture in the Gas

Ensure that the totalizer operation is enabled. See section 2.5.9.

Increase the low flow cutoff to a value greater than the displayed flow rate.

The TA2 will ignore readings lower than this value. Optionally, increase the zero flow signal to match the value indicated under Signal Value. See section 2.5.16.

Check values entered for Flow Area under

Basic Configuration. Check if Install Factors are entered under Advanced Configuration.

Check STP conditions under Advanced

Configuration.

Depending on type and size of buildup, flow readings may either increase or decrease. Clean sensor.

The TA2 assumes a specific fully developed flow profile. User can correct for variations in flow profile using the Install

Factors found under Advanced

Configuration section 2.5.11.

Condensed moisture will cool the sensor more than gas flow. This will temporarily indicate a higher than expected flow rate.

48



3.4.1 Error Messages

The TA2 Mass Flow Meter utilizes a 3-level hierarchy for reporting diagnostics information: FAULTS, WARNINGS, and INFORMATION. Faults and Warnings can be reviewed on the rotating screen in the Home menu. These screens capture only current conditions. Historic diagnostic information can be viewed in the HISTORY screen of the

Diagnostics Menu.

FAULT: The highest level in the hierarchy of diagnostics.

A Fault indicates a defect or failure in the circuitry or software, or a calibration condition that makes reliable measurement impossible. The mA value defaults to 3.6 mA,

22 mA, or HOLD and a message is displayed on the rotating screen. Further error information can be obtained by reviewing the Diagnostic Menu screen.

WARNING: This is the second level in the hierarchy of diagnostics. A Warning indicates conditions that are not fatal but may affect the measurement. A message will appear on the Home (rotating) screen when a Warning is detected but will not affect the output current. Further error information can be obtained by reviewing the

Diagnostic Menu screens.

INFORMATION: This is the lowest level in the hierarchy of diagnostics. Information messages are for conditions that provide operational factors that are not critical to the measurement. Further error information can be obtained by reviewing the Diagnostics Menu.

49

50

3.4.1.1 Fault Messages

Diagnostic

Non-Volatile

Memory corruption

No signal from Probe

Temperature Sensor

Failure

Temperature Sensor

Failure

Flow Sensor Failure

Flow Sensor Failure

RTDs Reversed

Heater Shorted

Heater Open

Zero Flow Signal is too high

Too Few

Calibration Points

Air Equivalency

Coefficients incorrect

Install Factors incorrect

Module Failure

Velocity is greater than the Upper Sensor Limit

Fault Description/Corrective Action

Partial corruption of the Non-Volatile memory stored in the EEPROM. Data may revert to Default conditions.

Re-verify that all calibration and configuration factors in the TA2 match the calibration certificate.

There is no signal from the sensor. Check the wiring between the probe and the electronics.

A short has occured in the RTD measuring the process temperature or in the interconnecting wiring (if remote electronics). Check wiring to the probe.

There is an open circuit in the RTD measuring the process temperature or in the interconnecting wiring

(if remote electronics). Check wiring to the probe.

A short has occured in the RTD measuring the heated sensor or in the interconnecting wiring


There is an open circuit in the RTDs measuring the heated sensor or in the interconnecting wiring


The wiring connecting the RTDs is reversed.

Check probe wiring or interconnecting cable

(if remote electronics)

The heater has developed a short either in the probe or in the interconnecting cable (if remote electronics).

Check probe wiring.

There is an open circuit in the wiring going to the heater.

Check wiring. Also, check if the two-pin jumper is missing.

See section 3.5.1.

Zero Flow Signal (power) is greater than second data point in the Calibration Table. Check value entered under Factory Config/Cal Parameters/Zero Flow Signal.

The calibration table does not contain sufficient number of data points for the flow range. Minimum of ten points is required.

The Air Equivalency factors used result in a nonmonotonically increasing curve over the operating range.

Check factors.

Install factors entered under Advanced Configuration result in a non-monotonically increasing curve.

Check factors.

No readings received from the ADCs, or the values out of range. Indicates failure of Analog to Digital converters.

Requires replacement of processor board or return of unit to factory.

The velocity is greater than established values.

Contact MAGNETROL.

LCD Message

Default Params

No Probe Signals

TempSnsr Shorted

Temp Sensor Open

FlowSnsr Shorted

Flow Sensor Open

RTDs Reversed

Heater Shorted

Heater Open

ZFS Too High

Too Few Cal Pts

Air Equiv Coeffs Bad

User Instl Coeffs Bad

Module Failure

Vel > UprSnsrLmt


3.4.1.2 Warning Messages

Diagnostic

Initializing

AO2 Loop current fixed

TA2 is running diagnostics test

Velocity too high

RTD drift

Totalizer Error

Pulse Multiplier Error

Current loop(s) require trimming

Temperature Limit

Exceeded

Install Factor Error

Electronic Temperature

Exceeded

Warning Description

Initialization in progress. The TA2 will begin making flow readings at completion of cycle.

The second 4–20 mA loop (AO2) is not responding. The mA signal may be saturated at 20.5 mA or may be fixed and non-responsive. Check informational messages.

The operator has put the TA2 into one of several diagnostics tests. The mA output is 4 mA.

The Flow rate exceeds the calibration range of the instrument.

Instrument will continue to operate. Accuracy is uncertain; flow measurements will be repeatable.

The RTD drive circuit current has drifted since last calibration.

The drift is outside expected range. The TA2 has compensated for the drift, continued drift may affect accuracy. Repeatability will remain.

There is an error in the Totalizer operation—the Totalizer and

Elapsed Time indicator are reset to 0.

The maximum pulse output exceeds the maximum frequency selected. Increase the Pulse Multiplier.

The D/A Trim values are factory defaults. Perform D/A Trim of

AO1 or AO2 under Advanced Configuration menu.

The temperature measured by the sensor exceeds the rated temperature. Continued operation will damage sensor.

Check and recalculate the install factors. This message may occur if the units of measurement were changed after install factors were entered.

The temperature of the microprocessor board is above +176 °F

(+80 °C) or below –40 °F (–40 °C)

LCD Message

Initializing

AO2 Loop Fixed

In Test Mode

Vel > Upr Cal Pt

RTD Drive Ckt

Dflt Totalizer

Pulse Mult Error

AO1 Loop Trim Reqd

AO2 Loop Trim Reqd

Process Temp Hi

Check Inst Factors

Elec Temp Hi

Elec Temp Lo

3.4.1.3 Information Messages

Diagnostic

AO2 Loop not responding

AO2 Loop Saturated

Upper Range

Value Error

Insufficient Span

System Warning

Information Description

The second 4–20 mA loop (AO2) is fixed and not responding.

Check mA output. This informational message will also be activated if the second mA loop output is saturated at

20.5 mA. Check I/O Config/AO2 Loop Config/LRV and URV.

The second 4–20 mA loop (AO2) is saturated at 20.5 mA.

Check I/O Config/AO2 Loop Config/URV.

The Upper Range Value is greater than the Upper

Calibration Point.

The URV (Upper Range Value) is too close to the LRV

(Lower Range Value). Increase separation.

Non-fatal firmware exception. Advise MAGNETROL with system code number.

LCD Message

AO2 Loop Fixed

AO2 Loop Saturated

SetPt > UprCalPt

SetPts Too Close

System Code


51

Display

J1 (2 x 7 Pin)

TA2 Processor Board

1

Figure 13

Heater Test

J2 (2-Pin)

3.5

Diagnostics Test

The TA2 has several diagnostics tests which may be routinely performed. When conducting these tests, the reported flow rate will be zero.

3.5.1 Heater Setting

The amount of current flowing to the heater is displayed under Diagnostics/Heater Setting. This value can be verified by connecting a multi-meter across the Heater Bypass terminals (J2) shown in Figure 13. This board can be accessed by opening the cover and removing the display module.

The measured value should match the value shown on the display. Any difference between the two values indicates that the heater calibration is incorrect. If the heater circuit is open, a nominal current value will be displayed, but the measured current will be zero.

3.5.2 Zero Power Test

This test checks that the resistances of the RTDs have not changed. The heater is turned off and the temperature difference between the two sensors is compared. The test should be performed in a water bath (preferred) or under flowing conditions. Conducting this test in still air will cause the test to time out and provide inconclusive results.

The temperature difference between the two sensors is displayed. Typical values will match within 0.15 °C.

Temperature difference may be as high as 0.5 °C depending upon test conditions. If greater than this value, contact the factory as drift in the RTDs may have occurred.

3.5.3 Calibration Verification Procedure

The TA2 measures heat transfer. These procedures are designed to permit the user to verify the calibration by checking the heat transfer characteristics of the sensor. If the heat transfer characteristics are approximately the same when the test is conducted compared with when the same data was collected at the factory during the initial calibration, the unit remains in calibration.

Watch the video for this procedure at

www.magnetrol.com/thermalmassflow.

52

54-631 Thermatel

®

Model TA2 Transmitter

Figure 14


The procedure is performed under two different sets of conditions. Both tests should be conducted at “room temperature”; approximately +70 to +85 °F (+21 to +30 °C).

The tests can be performed using the keypad and display,

HART, or PACTware

™

through the Diagnostics Menu.

During the test, the display (or HART or PACTware

™

) will provide an indication of the measured temperature difference and if the Delta T measurement is stable.

Low Flow Validate—Simulates a low flow condition.

i. Cover sensor tips to isolate from air currents. During the test, the heater power is set and the Delta T

(temperature difference) between the two RTDs is measured.

ii. After completion of the test, the value of the temperature difference measured during the test is compared against the previously stored value. (This value can also be compared with the initial calibration found on the original calibration certificate.) iii. The value from the test should compare with the stored (or original calibration value) within 1.5 °C.

This variation in part due to potential variations of the ambient temperature during the test and differences in test methods.

High Flow Validate—Simulates a high flow condition.

i. Support the TA2 vertically in a water bath. See

Figure 14. During the test, the heater power is set and the Delta T (temperature difference) between the two RTDs is measured.

ii. After completion of the test, the value of the temperature difference measured during the test is compared against the stored value. (This value can also be compared with the initial calibration found on the original calibration certificate.) iii. The value from the test should compare with the stored (or original calibration value) within 1.5 °C

This variation in part due to potential variations of the ambient temperature during the test and differences in test methods.

If the temperature difference measured during the test is greater than the recommended temperature difference indicated above in item “iii”, then the overall accuracy of the

TA2 may be affected. Contact MAGNETROL Technical support.

53

54

Front

Compartment

Figure 15

Rear

Compartment

4.0

Maintenance

4.1

Circuit Board Replacement

The input wiring board and display module can be replaced without any effect on the performance and operation of the TA2. The processor board contains the calibration information and is matched with the probe. If this circuit board is replaced, re-entry of all the original calibration and configuration information is required. This information is contained on the calibration certificate which can be supplied by MAGNETROL. Use of PACTware

™ is recommended for re-entry of this data.

1. Make sure the power source is turned off.

2. The input wiring board is contained in the rear compartment where the input voltage wiring comes into. The display module, power loop board and processor board are contained in the front compartment.

3. Remove cover—refer to Figure 15.

4. If removing boards in the front compartment: a. Remove and unplug the display module if provided.

b. Remove the two hex head fasteners using a 1 ⁄

4

" socket.

This will remove the electronics module containing the processor board and the power loop board.

c. Unplug the electrical connection at J1 of the power loop board.

d. Probe wiring connections are made to TB1 on the same side of the power loop circuit board.

Integral Electronics

Wire Color

Orange

Brown

Black

Blue

White

Connection on TB1

8

7

3

2

1 e. Connect the probe wires as indicated:

Remote Electronics

—see Figure 10 on Page 11.

f. Reattach the electrical connection to J1.

g. Reassemble the circuit boards in the enclosure.

Make sure that the probe wiring does not get pinched between the standoffs on the circuit board and the attachment lugs in the housing.

h. Reinstall the display module if provided.

5. If replacing the input wiring board, loosen screws, and remove the electrical connection to J1 on the rear of the circuit board.

i. Attach electrical connections to J1 on new circuit board and reassemble.

6. Reinstall the cover.



7. Apply power to the instrument.

8. Proceed to section 4.3

4.2

Probe Replacement

The probe and processor board are calibrated together to form a matched set. If a probe needs to be replaced,

MAGNETROL will provide a new calibration certificate.

The user will be required to re-enter the data from this certificate into the instrument. Use of PACTware ™ is recommended for re-entry of this data. A new serial number will be designated to the replacement probe.

Integral Electronics

1. Make sure the power source is off.

2. Access the power loop circuit board following procedure in section 4.1.1

3. Disconnect wiring to the probe.

4. Loosen the two set screws at the base of the housing. One serves as a rotational lock, the other secures the head into place.

5. Unthread the probe.

6. Thread in a new probe.

7. Connect the probe wires to the power loop board as indicated in section 4.1.4., step “e”

8. Reassemble the electronics following 4.1.1

9. Align the enclosure with the desired probe position, making sure that the flow arrow indicates the direction of flow.

10. Retighten the two set screws.

11. Reapply power.


Remote Electronics

1. Make sure the power source is off.

2. Remove cover of remote electronics housing.

3. Remove bezel.

4. Disconnect the wires from the probe at terminal TB1.

5. Loosen the two set screws at the base of the housing. One serves as a rotational lock, the other secures the head into place.

Wire Color

White

Blue

Black

Brown

Orange

Terminal Connection on TB1

1

2

3

4

5

6. Unthread the probe.

7. Thread in a new probe.

8. Connect the probe wires to Terminal TB1 as shown in fig. 10.

9. Retighten the two set screws.

55

56

10. Reassemble the bezel and install cover.

11. Reapply power.


4.3 Replacement Calibration

4.3.1 RTD Calibration

If either the probe or the processor board is replaced in the field, calibration of the RTDs in the probe will return the

TA2 to like-new performance.

NOTE: If this procedure is not followed, the accuracy will be affected; however, very repeatable flow measurements will be obtained.

Locate the sensor vertically in a water bath with an accurate temperature sensor directly adjacent to the probe tips. It is preferable that the water is stirred during the calibration to ensure the TA2 pins and temperature probe are at the same temperature. Using the keypad and display, select

“Factory Config\Probe Params\Probe Temp Calib” and then press the Enter key. The device will dynamically display the To/Fo readings over a period of time. After 3 minutes, and if the readings are stable enough, the display automatically changes to request entry of a password (126) followed by the ambient water temperature. After the temperature is entered, the device will display if the calibration is OK. The device then automatically resets itself for normal operation. A similar procedure exists for the DD and

DTM.

4.3.2 Set Point Adjustment

A new set point must be calculated to complete the reconfiguration.

1. Place the probe in ambient temperature air where there is no flow across the sensor. This can be accomplished by wrapping the sensor tip with a piece of paper.

2. Go into Diagnostics

’ Signal. Allow time for the signal to stabilize to within ±1 mW and record the new signal.

3. Calculate a new set point by using the following formula:

New set point = set point x (zero flow signal ÷ new signal)

If replacing the probe, use the set point and zero flow signal (ZFS) shown on the new calibration certificate that came with the probe.

If replacing the processor board, use the set point and ZFS on the original calibration certificate. If the original calibration certificate is not available, contact MAGNETROL with the serial number of the unit found on the nameplate.

New signal is the value measured under step 2.



NOTE: If the TA2 is calibrated for a gas other than air, there are two

ZFS values on the certificate. One is for air and the other is for the particular gas. Use the ZFS for air when making the adjustment in air.

4. Enter this new set point into the TA2 instead of the value on the calibration certificate under Factory Config

’ Cal

Parameters A

’ Set Point.

5. Return to the signal screen, similar to step 2, ensuring there is no flow over the sensor. The signal value should now agree with the original ZFS within 1%. If desired, steps 2 through 5 can be repeated.

4.4

Flow Recalibration

Calibration of the TA2 requires a flow bench or other method for determining the flow rate. Using this procedure, the user can re-calibrate the unit himself or use a local flow calibration facility rather than returning the unit to the factory for recalibration. With an insertion probe, it is not necessary to calibrate in the same size pipe as the unit is installed in.

The TA2 has internal scale-up factors which adjusts the data from the calibration pipe size to the installation pipe size.

Calibration requires the TA2 sensor to be positioned in a test section; the test section should have a sufficient upstream and downstream straight run to ensure the formation of a fully developed flow profile. Calibration should be performed using the same gas which the unit is calibrated for. Optionally, an air equivalency calibration can be performed. In this case, calibrate in air and contact the factory for air equivalency factors and equivalent air calibration rate.

Recalibration Procedure:

1. Select the set point; this is the temperature in degrees

Celsius which the TA2 maintains between the two sensors.

If the unit is re-calibrated for the same application, then it is probably not necessary to change the original value. If it becomes necessary to change the set point due to change in the calibration velocity or the type of gas: a. Record the set point under Factory Configuration/

Cal Parameters (A or B)/Set Point.

b. Determine the maximum velocity in SFPM which the unit will operate (SFPM equals the SCFM divided by the flow area of the test section in square feet).

c. Install the probe in the test section and flow gas that is equivalent to the maximum velocity in the calibration range.

d. Using the display, HART, or PACTware

™

, obtain the signal value in mW from the Diagnostics menu.

e. Calculate a new set point using the formula:

New set point = old set point * (800/measured signal (mW)). 800 mW is the desired maximum power rating for the TA2.

57

58

f. Enter new /set point in TA2 under Factory

Configuration/Cal Parameters (A or B) Set Point.

2. Convert the flow rate in the application to the flow rate in the test section using the formula:

Flow in test section = application flow * (flow area of test section/flow area of application) a. Allow a flow of a known amount of gas through the test section, recording flow rate and TA2 signal

(mW).

A minimum of 10 and a maximum of 30 data points including a zero flow value should be obtained. One data point should be taken at a flow rate approximately 20% greater than the expected operating range.

The higher the number of data points, the better the overall accuracy of the instrument.

b. Convert the flow rate in the test section to mass velocity in SFPM (Standard Feet Per Minute). This is equivalent to the flow rate in SCFM divided by the flow area in square feet. Convert from other units of measurement as necessary. Use MAGNETROL

STP conditions of 70 °F and 1 Atmosphere (14.69

psia).

c. Enter the Power and the corresponding Mass

Velocity into the TA2. This is easily performed using

PACTware

™

but can also be entered directly into the TA2 using the display and keypad or using

HART. These values should be entered in increasing order to ensure a monotonically increasing curve.

Note password of 126 is required for entry of calibration data. (Contact MAGNETROL if issues using this password.) d. After completion of entry of the calibration data, check the display/HART/PACTware

™

for the number of points accepted (or table length). If this number is less than the actual number of data points entered, then there is an error in the entry of the calibration data. Ensure that the data is entered so the curve is monotonically increasing. The values of mass velocity and power should always be increasing over the calibration range.

e. A Fault message will occur if there are fewer than ten calibration data points in the calibration table.

3. Enter the flow area of the calibration test section. Units of measurement are the same as selected under Basic Config menu. This value is used in calculating the scale-up factor between the calibration test section and the installation.


4.5

Agency Approvals

AGENCY

UNITED

STATES

& CANADA

APPROVED MODEL

TA2-AXXX-X3X

TA2-AXXX-X4X with

TXR-XXXX-XXX (probe)

TFT-XXXX-000 (flow body)

PROTECTION METHOD

Explosion Proof

Dust Ignition Proof

Non-Incendive

Suitable for

AREA CLASSIFICATION

Class

I, Div 1, Groups B, C, D

T6 Ta = -40° C to +70° C,

T5 Ta = -40° C to +80° C

Class

II, III, Div 1, Groups E, F, G

T6 Ta = -40° C to +70° C,

T5 Ta = -40° C to +80° C

Class

I, Div 2, Groups A, B, C, D

T4 Ta = -40° C to +80° C

Class

II, Div 2, Groups E, F, G

Class

III, Div 1

T4 Ta= -40° C to +80° C

Type 4X, IP 66

II 2 G Ex d IIC T6 Gb, Tamb -40° C to +55° C

ATEX

IEC

TA2-AXXX-X3X

TA2-AXXX-X4X with



Explosion proof

EN60079-0: 2009

EN60079-1: 2007

TA2-AXXX-XEX

TA2-AXXX-XFX with


Ex d Explosion Proof w/IS probe circuit

EN60079-0: 2009

EN60079-1: 2007

TFT-XXXX-000 (flow body) EN60079-11: 2007

EN60079-26 : 2007

TA2-AXXX-X3X

TA2-AXXX-X4X with



Explosion Proof

IEC 60079-0: 2007-10

IEC 60079-1: 2007-04

II 1/2 G Ex d+ib / d[ib] IIC T4/T3 Ga/Gb

T4 : Tamb -40° C to +40° C

T3 : Tamb -40° C to +70° C

Ex d

IIC T6 Gb when T amb= -40° C to +70° C and

T medium= -40° C to +55° C

EAC

TA2-AXXX-X3X

TA2-AXXX-X4X

BRAZIL

TA2-AXXX-X3X

TA2-AXXX-X4X com


INMETRO TÜV TFT-XXXX-000 (flow body)

Russian Authorization Standards -

Consult MAGNETROL for Details

Explosion proof

ABNT NBR IEC 60079-0:2008

ABNT NBR IEC 60079-1:2009

ABNT NBR IEC 60529:2005

Note: Maximum surface temperature is +4 °C (+7.2 °F) above process temperature.

Ex d

IIc T6 Gb

IP66W

-40° C < Ta < +55° C

TÜV 11.0027 X

These units have been tested to EN 61326 and are in compliance with the EMC Directive 2004/108/EC.


59

60

3

2

5

1

9

4

6

8

11

13

12

10


4.6

Replacement Parts

NOTE: Replacement of the processor circuit board or the probe requires entry of calibration and configuration data from the

Calibration Certificate.

WARNING: EXPLOSION HAZARD

Substitution of components may impair suitability for

Class

I, Division 2

EXPLOSION HAZARD

Do not disconnect equipment unless power has been switched off, or the area is known to be non-hazardous

Item Description

1

2

Power Loop Board

Processor Board

HART Version

Without HART

HART, 2nd mA and Pulse

ATEX Zone 0 HART Version

ATEX Zone 0 Without HART

ATEX Zone 0 HART, 2nd mA and Pulse

GP, FM, FMc, ATEX, Exd

ATEX Zone 0

Electronics Module with Processor Board,

Power Loop Board with mounting hardware

3

4

Display Module

Input Wiring Board

Enclosure O-ring

Enclosure Base

Short Enclosure Cover **

Wiring Enclosure Cover

Enclosure Cover with Window ***

Remote Probe Housing Base

Remote Probe Housing Cover

Remote Probe Housing O-ring

Remote PC Board

Probe/Flow Body

Basic

Full Feature *

8

9

10

5

6

7

11

12

13

14

*

Includes 2nd mA and pulse output

**

Short enclosure cover used with units that do not include display

***

Enclosure cover with window is used with units that do include display

Electronic Module includes Processor Board and the Power Loop Board with Mounting Hardware

GP/Explosion Proof, no HART

GP/Explosion Proof, HART

GP/Explosion Proof, HART, 2nd mA and Pulse Output

Zone 0 (Ex d + ib), no HART

Zone 0 (Ex d + ib), HART

Zone 0 (Ex d + ib), HART, 2nd mA and Pulse Output

089-7261-001

089-7261-002

089-7261-003

089-7261-004

089-7261-005

089-7261-006

Part Number

Z30-3612-001

Z30-3612-002

Z30-3612-003

Z30-3612-004

Z30-3612-005

Z30-3612-006

Z30-3611-001

Z30-3611-002

See table below.

Z30-3614-001

089-7260-001

089-7260-002

012-2201-240

004-9207-XXX

004-9197-007

004-9206-010

036-4411-001

004-9212-XXX

004-9193-002

012-2101-237

030-3616-001

See Probe/Flow Body


61

4.7

Specifications

4.7.1 Performance

Flow range maximum

Accuracy flow

Accuracy temperature

Repeatability

Linearity

Turn down

Calibration

Span

Response time

Cable length

SIL

4.7.3 Probe

Materials

Process connections

Pressure rating

Temperature rating

10–54,000 SFPM (0.05–275 Nm/s) air reference to standard conditions

Contact MAGNETROL for other gases

±1% of reading +0.5% of calibrated full scale

±2 °F (1 °C)

±0.5% of reading

Included in flow accuracy

100:1 typical (depending on calibrated flow range)

NIST traceable

Minimum 0 –100 SFPM

1 to 3 second time constant typical

500 feet (150 m); (see page 68 for cable specifications)

Safe Failure Fraction (SFF) 88.4%

4.7.2 Transmitter

Display

Keypad

Menu Language

Supply voltage

Power consumption

Signal Output

DC = 9 W maximum, AC = 20 VA maximum

4–20 mA, HART available (3.8 to 20.5 mA useable — meets NAMUR NE 43)

Analog output signal Active 4–20 mA (isolated) maximum 1000 Ω loop resistance

Passive 4–20 mA (isolated) loop resistance dependent on power supply, 11– 36 VDC

Diagnostic Alarm

HART

Pulse Output

3.6 mA, 22 mA, HOLD

Optional

Active Connection — 24 VDC (±10%) Power, 150 mA

Passive Connection — 2.5 to 60 VDC Power, 1.5 AMP

Alarm Output

Two-line alphanumeric LCD, 16-characters per line

Four push button

English, French, German, Spanish, Russian

100 –264 VAC, 50–60 Hz

15-30 VDC (lower VDC possible - Consult Factory)

Ambient temperature

Temperature effect

Humidity

Housing Material

Shock /Vibration

Active Connection — 24 VDC (±10%) Power, 100 mA

Passive Connection — 2.5 to 60 VDC Power, 1 AMP

-40° to +176° F (-40° to +80° C); display not readable below -22 °F (-30 °C)

Approximately ±0.04% of reading per °C

99% Non-condensing

Aluminum A356 (<0.2% copper); 316 stainless steel

ANSI/ISA-S71.03 table 2, level SA1 (Shock), ANSI/ISA-S71.03 table 1, level VC2 (Vibration)

316/316L stainless steel all welded

Hastelloy ® C-276/C-22

Refer to model number, hot tap optional

1500 psig @ +70 °F (103 bar @ +20 °C), 1375 psig @ +400 °F (95 bar @ +200 °C)

-50° to +400° F (-45° to +200° C)

¿

4.7.4 Flow Body

Materials 316/316L stainless steel all welded

Carbon steel with stainless steel sensor

Process connections NPT or 150-pound flange – Refer to model number

Pressure rating

Temperature rating

1500 psig @ +70 °F (103 bar @ +20 °C), 1100 psig @ +400 °F (76 bar @ +200 °C)

-50 to +400 °F (-45 to +200 °C)

¿

¿

For operating temperatures between +250 and +400 °F (+120 and +200 °C), either use remote electronics or a longer length insertion probe to provide an additional four inches (100 mm) between the electronics and the compression fitting.

62


4.7.5 Physical – inches (mm)

6.49

(165)

4.49 (114)

3 /

4

" NPT or M20 connection

Optional compression fitting

" or 1" NPT recommended

Pipe centerline

1" (25 mm)

Front View

Rotation clearance

NEMA 4X/7/9

2 Holes

.38 (10) dia.

2.00

(51)

3

/

4

" NPT or M20

NEMA 4X/7/9

6.3 (160)

2.75

(70)

3.00

(76)

3.50

(89)

3.75

(95)

4.49

(114)

3

/

4

" NPT or M20

Transducer cable connector

Main Electronics

A B

5.18

(132)

Insertion

Length

Dimension A:

3.33 (85) without display

3.88 (99) with display

Dimension B:

3.88 (99)

Side View

4.00

(102)

3.95

(100)

Insertion length

3 /

4

" (19)

Remote Probe with Housing


63

4.7.5 Physical – inches (mm)

A

B

A

B

L1

L

L1

L

Length (L) L1

Code Size

With Flow

Conditioning

Without Flow

Conditioning

With Flow

Conditioning

Without Flow

Conditioning

Height to

Centerline

(A)

Overall Height (B)

NPT Flange

3

4

5

0

1

2

1

1

3

1"

1

⁄

2

"

⁄

4

"

⁄

2

2"

3"

"

8 (203)

11.25 (285)

15 (381)

19.5 (495)

26 (660)

39 (991)

—

—

—

7.5 (191)

7.5 (191)

10 (254)

5 (127)

7.5 (190)

10 (254)

12 (305)

16 (406)

24 (610)

—

—

—

3.75 (95)

3.75 (95)

5 (127)

6 4" 52 (1321) 12 (305) 36 (914) 6 (152)

Flow conditioning on 1 ⁄

2

" to 1" is provided due to length of flow body and sensor design.

Optional flow conditioning plate and straight run is available on flow bodies 1 1 ⁄

2

" and larger.

5 10

Pressure Drop

Flow Rate – Nm3/hr

50 100 500 1000 5000 10000

8.0 (203)

8.0 (203)

8.0 (203)

9.5 (241)

8.4 (213)

8.5 (216)

N/A

9.7 (246)

9.9 (251)

8.6 (218) 10.1 (257)

8.3 (210) 9.2 (234) 10.8 (274)

9.5 (241) 10.7 (272) 12.5 (318)

9.5 (241) N/A 13.3 (338)

14.0 (356)

Pressure Drop with Flow Conditioning Plate

5 10

Flow Rate – Nm3/hr

50 100 500 1000 5000 10000

1000

500

½" ¾" 1" 1½" 2" 3" 4"

1000

500

1000

500

1½" 2" 3" 4"

100

50

100

50

100

50

10

5

10

5

10

5

1

0.5

1

0.5

1

1000

500

100

50

10

5

1

0.1

1

5

10

50

100

500

1000

5000

10000

0.1

1

5

10

50

100

500

1000

Flow Rate – SCFM Flow Rate – SCFM

Pressure drop is based on air at +70° F and 1 atmosphere (density = 0.075 lb/ft 3 ). For other gases, pressure or temperatures, estimate pressure drop by multiplying value from chart by actual density (at operating conditions) divided by 0.075.

5000

10000

64


4.8

Model Numbers

4.8.1 Transmitter

SIGNAL OUTPUT

2

4

0

1

4-20 mA

4-20 mA with HART

F

OUNDATION fieldbus

4-20 mA with HART, Pulse/Alarm, second mA Output

DISPLAY

0 None

B Plug-in display with keypad (with window)

CALIBRATION–INSERTION PROBE

Actual Gas Calibration

0 Special

¿

1 Air

2 Nitrogen

3 Hydrogen

4 Natural Gas

6 Digester Gas

7 Propane

8 Oxygen

Air Equivalency / Correlation

5 Gas Correlation

¿

9 Air Equivalency

¿ Consult factory for approval

CALIBRATION–FLOW BODY

Actual Gas Calibration

A Special

¿

B Air

C Nitrogen

D Hydrogen

E Natural Gas

G Digester Gas

H Propane

J Oxygen

Air Equivalency / Correlation

F Gas Correlation

¿

K Air Equivalency

HOUSING LOCATION / AGENCY APPROVAL

3

4

E

F

Integral, general purpose, non-incendive, & explosion proof FM/FMc/ATEX Ex d/IEC

Remote, general purpose, non-incendive, & explosion proof FM/FMc/ATEX Ex d/IEC

Integral, general purpose, ATEX, Ex d+ ib (Zone 0)

Remote, general purpose, ATEX, Ex d+ ib (Zone 0)

ENCLOSURE TYPE

2

3

0

1

Aluminum, 3 ⁄

4

" NPT

Aluminum, M20

Stainless Steel, 3 ⁄

4

" NPT

Stainless Steel, M20

T A 2 A


0

65

66

T

4.8.2 Insertion Probe

THERMATEL PROBE

T E Probe length in inches

T M Probe length in centimeters

PROBE TYPE

R

3

⁄

4

" diameter probe

MATERIALS OF CONSTRUCTION

A

B

316/316L Stainless Steel

Hastelloy C

PROCESS CONNECTION SIZE

00 Compression Fitting Utilized (customer supplied)

03

04

3

3

⁄

4

" NPT SS compression fitting with Teflon Ferrules

⁄

4

" NPT SS compression fitting with Stainless Steel Ferrules

05 1" NPT SS compression fitting with Teflon Ferrules

06 1" NPT SS compression fitting with Stainless Steel Ferrules

11 Threaded 3 ⁄

4

" NPT

21 Threaded 1" NPT

22 Threaded G1 (1" BSP)

ANSI FLANGES DIN FLANGES

23 1" 150# ANSI raised face flange BB DN 25 PN 16/25/40 EN 1092-1, Type A

24 1" 300# ANSI raised face flange CB DN 40 PN 16/25/40 EN 1092-1, Type A

33 1

1

⁄

2

" 150# ANSI raised face flange DA

DN 50 PN 16 EN 1092-1, Type A

EN 1092-1, Type A 34 1 1 ⁄

2

" 300# ANSI raised face flange DB DN 50 PN 25/40

43 2" 150# ANSI raised face flange

44 2" 300# ANSI raised face flange

PROBE LENGTH

2.6 to 99.9 inches (example 8.5" = 085)

Minimum lengths: 2.6" (026) with threaded process connection

2.8" (028) with flanged process connection

4.5" (045) with compression fitting proces connection

7 to 253 centimeters (example: 18 cm = 018)

Minimum lengths:

7 cm (007) with threaded or flanged process connection

11 cm (011) with compression fitting process connection

A


4.8.3 Flow Body

MATERIALS OF CONSTRUCTION

A All stainless steel

1 Carbon steel body with stainless steel sensor

SIZE

0

1

1 ⁄

2 inch

3 ⁄

4 inch

2 1 inch

3 1 1 ⁄

2 inch

4 2 inch

5 3 inch

6 4 inch

PROCESS CONNECTION TYPE

1 NPT Threads

¿

3 150# Flange

¿

Only when digit 5 = 0, 1, 2, 3, or 4

FLOW CONDITIONING PLATE (stainless steel)

A Not provided

B Provided

¡

¡

Only when Digit 5 = 3, 4, 5, or 6. Flow conditioning on

1

⁄

2

" to 1" is already provided due to length of flow body and sensor design. Optional flow conditioning is available on flow bodies larger than 1" which includes additional straight run and conditioning plate.

T F T


0 0 0

67

4.8.4 Connecting Cable

FOR CABLE LENGTHS UP TO 150 FEET

037-3313-XXX (Cable length in feet)—10 feet minimum,

150 feet maximum length

Example: 50 feet = 050

0 3 7 3 3 1 3

FOR CABLE LENGTHS UP TO 45 METERS

037-3314-XXX (Cable length in meters)—3 meters minimum,

45 meters maximum length

Example: 8 meters = 008

0 3 7 3 3 1 4

FOR CABLE LENGTHS BETWEEN 150 AND 500 FEET

037-3319-XXX (Cable length in feet)— 500 feet maximum length

Example: 300 feet = 300

0 3 7 3 3 1 9

68

0 3 7 3 3 2 0

FOR CABLE LENGTHS BETWEEN 45 AND 150 METERS

037-3320-XXX (Cable length in meters)—150 meters maximum length

Example: 80 meters = 080


Glossary

Atmospheric pressure: Average pressure at sea level.

One atmosphere pressure is equal to 14.696 psia or

29.921 inches of mercury or 406.8 inches of water.

Bar: Unit of pressure measurement. One bar equals

14.504 pounds per square inch or 100 kilopascals.

Celsius (C): Unit of temperature measurement. At one atmosphere pressure: at zero degrees Celsius, water freezes; at +100 degrees Celsius, water boils. One degree Celsius is equal to 1.8 degrees Fahrenheit.

Tc= (Tf -32) ÷ 1.8

Fahrenheit (F): Unit of temperature measurement. At one atmosphere pressure: at +32 degrees Fahrenheit, water freezes; at +212 degrees Fahrenheit, water boils.

Tf = 1.8 × Tc +32

Kelvin: Unit of temperature measurement referenced to absolute conditions.

Kelvin = Degrees Celsius + 273.15

NIST: National Institute of Science and Technology

Nm3/h (Normal cubic meters per hour): Flow measurement at normal (standard) conditions (STP).

PSIA: Absolute pressure in pounds per square inch.

Zero psia is an absolute vacuum.

1 atmosphere pressure = 14.696 psia

PSIA = PSIG + 14.696

PSIG: Gauge pressure in pounds per square inch above atmospheric pressure.

Rankine: Unit of temperature measurement referenced to absolute conditions.

Degrees Rankine = Degrees Fahrenheit + 459.67

SCFH (standard cubic feet per hour): Flow measurement at standard (STP) conditions.

SCFM (standard cubic feet per minute): Flow measurement at standard (STP) conditions.

SFPM (standard feet per minute): Velocity of gas flowing in the pipe or duct referenced to standard

(STP) conditions.

Standard Conditions: Typical is +70 °F and one atmosphere pressure (14.7 psia) or 0 °C and one bar pressure (14.5 psia).

STP (standard pressure and temperature): Also referred to as standard conditions.


The following symbols and definitions are used in the software configuration:

Install Factors: The TA2 assumes a fully developed flow profile at the sensor location. Differences in flow profile or other installation issues can affect the measurement of the TA2. Advanced users have the ability to adjust the TA2 measurement using a polynomial relationship in the form of:

Corrected flow = A+Bx+Cx

2

The default is B = 1 and A and C factors = 0. The units for “x” are the units of measurement selected under I/O

Configuration/AO1 Loop Control. The most common adjustment is the linear “B” factor.

Once determined, the Install Factors can be entered into the TA2 under the Advanced Configuration menu.

See section 2.5.11.

LRV: Lower Range Value. The value that corresponds to the lower operating range of the instrument; also considered as the 4 mA value.

Mass flow: Measured in various units, typically LB/Hr or Kg/h. An input of the flow area of the pipe or duct and density is required.

STP conditions: The mass flow rate is based on a given set of Standard Temperature and Pressure (STP) conditions. MAGNETROL uses default of +70° F and one (1) atmosphere for STP conditions. The STP conditions may be modified to match the user’s standards.

If the STP conditions are modified, the TA2 will recalculate the flow rates at the specified STP conditions.

The advanced configuration menu permits the user to enter any desired temperature and cycle between selection of one (1) bar or one (1) atmosphere of pressure.

Totalized flow: Provides a measurement of the total flow in units specified.

Flow: Measured in various units, typically SCFM (standard cubic feet per minute), SCFH (standard cubic feet per hour), MMSCFD (million standard Cubic Feet per

Day), or Nm

3

/h (normal cubic meters per hour), referenced to standard conditions. An input of the flow area of the pipe or duct is required to obtain this value.

Tag line: Tag lines are programmable for both

Display (16-character Local Tag) or HART (8-character

HART tag)

Initially the local tag line on the display reads

“MAGNETROL TA2”. This can be changed from the advanced configuration section of the software.

See Device Information Section 2.5.12.

URV: Upper Range Value. The value that corresponds to the upper operating range of the instrument; also considered as the 20 mA value.

69

Appendix A

The flow measurement of the TA2 assumes that the end of the probe is one inch past the centerline and the presence of a fully developed flow profile. See Figure A.

R

D

= 3,000,000

R

D

= 4,000

Figure B

Flow Profile Following

Single Elbow

Figure A

Turbulent Flow Profile

As gas flows in a pipe or duct, the flow profile will change with obstructions and changes in flow direction. As the gas flows around an elbow, the momentum causes the gas velocity on the outside of the elbow to increase and the velocity on the inside to decrease. See figure B.

Figure C, below, indicates the minimum recommended straightrun distances required to obtain the desired fully developed flow profile. If these straight-run distances are not available, the overall accuracy of the flow measurement will be affected; however, the repeatability of the measurement will be maintained.

The user has the ability to enter correction factors to compensate for non-ideal flow profile conditions.

FLOW

15 diameters

90-Degree Elbow

5 diameters

FLOW

20 diameters

5 diameters

Two 90-Degree Elbows in Plane

FLOW

35 diameters

5 diameters

Two 90-Degree Elbows out of Plane

Figure C – Probe Installations

FLOW

15 diameters

Reduction

5 diameters

FLOW

15 diameters

Expansion

5 diameters

FLOW

50 diameters 5 diameters

Control Valve -

It is recommended that control valves be installed downstream of the flow meter.

70


Appendix A (continued)

Conditioning Plates

Flow conditioning plates may be provided in applications where limited straight run is available. Plates are available in flow body type sensor designs (TFT) from 1.5” to 4” pipes. Plates may be purchased separately for pipe sizes 4” to 12” when using insertion probes (TXR).

The plate should be installed 2-5 diameters downstream of the nearest obstruction, change in pipe inside diameter or change in flow direction. For TXR designs, the insertion probe can be

THICKNESS

installed 8 pipe diameters downstream of the plate with 5 diameters required downstream of the TXR. For TFT designs with the plate at the entrance, the downstream is provided in the length of the TFT.

Plates are to be fitted with gaskets (customer supplied) in between flanges. If plates are not included and recommended straight run is not adhered to, the TA2 will provide repeatable measurement and the installation factors can be utilized.

INSIDE DIAMETER

OUTSIDE DIAMETER

Part Number

004-8986-001

004-8986-002

004-8986-003

004-8986-004

004-8986-005

004-8986-006

004-8986-007

004-8986-008

004-8986-009

004-8986-010

004-8986-011

004-8986-012

004-8986-013

004-8986-014

004-8986-015

004-8986-016

004-8986-017

004-8986-018

Description

4" 316 Stainless Steel

4" Carbon Steel

4" PVC


5" Carbon Steel

5" PVC


6" Carbon Steel

6" PVC


8" Carbon Steel

8" PVC


10" Carbon Steel

10" PVC


12" Carbon Steel

12" PVC


OD in (mm)

6.19 (157.2)

6.19 (157.2)

6.19 (157.2)

7.31 (185.7)

7.31 (185.7)

7.31 (185.7)

8.50 (215.9)

8.50 (215.9)

8.50 (215.9)

10.62 (269.7)

10.62 (269.7)

10.62 (269.7)

12.75 (323.9)

12.75 (323.9)

12.75 (323.9)

15.00 (381)

15.00 (381)

15.00 (381)

ID in (mm)

3.83 (97.3)

3.83 (97.3)

3.83 (97.3)

4.81 (122.2)

4.81 (122.2)

4.81 (122.2)

5.76 (146.3)

5.76 (146.3)

5.76 (146.3)

7.63 (193.7)

7.63 (193.7)

7.63 (193.7)

9.56 (242.9)

9.56 (242.9)

9.56 (242.9)

11.37 (288.9)

11.37 (288.9)

11.37 (288.9)

Thickness in (mm)

0.50 (12.7)

0.50 (12.7)

0.50 (12.7)

0.63 (16)

0.63 (16)

0.63 (16)

0.75 (19.1)

0.75 (19.1)

0.75 (19.1)

1.00 (25.4)

1.00 (25.4)

1.00 (25.4)

1.25 (31.8)

1.25 (31.8)

1.25 (31.8)

1.50 (38.1)

1.50 (38.1)

1.50 (38.1)

71

1000

100

10

1

0.1

0.01

0.001

0.0001

10

Appendix A (continued)

Pressure Drop Charts

1000

100

10

1

0.1

0.01

0.001

0.0001

10

1.5" 2"

100

Flow Rate (SCFM)

1000

3" 4" 5"

6"

8"

10"

12"

10000

1.5" 2" 3" 4" 5"

6"

8"

10"

12"

100

Flow Rate (Nm3/h)

1000

10000

72


Appendix B

TA2 Mass Flow Meter – Using both Pulse and 2nd mA connections

The pulse output and second mA output (commonly used for

Temperature) in the TA2 share a common ground. They are isolated from the remaining input and output connections of the instrument.

A flow computer or other receiving device may have common ground for the various input signals. This may cause difficulties when using both the TA2 pulse and second mA output with an external power supply or the power supply in the flow computer.

MAGNETROL refers to the use of a separate power supply as a passive connection from the TA2 as compared to an active connection where the TA2 provides power for the output signal

(sometimes referred to as self-powered).

Isolation problems may be encountered if the user wants to connect both the passive pulse output and the second mA output

(always passive connection) from the TA2 to a flow computer or other input device with common grounds. The attached illustration shows a recommended solution using a solid state relay between the flow computer and the active TA2 pulse output.

FLOW COMPUTER (CUSTOMERS)

TOTALIZER

PULSE INPUT

DI1

THESE

GROUNDS

GND_FLOW_COMPUTER

ARE LIKELY

TO BE INTERNALLY

TEMP. INPUT

TIED TOGETHER

DI2

GND_FLOW_

COMPUTER

EXTERNAL POWER SUPPLY

(CUSTOMERS)

GND_EXT

V_EXT

(+24V)

EXAMPLE OF A DC SOLID STATE RELAY

(CUSTOMERS)

2.00K

OHMS

2.00K OHMS A+ 1

A–/P+ 2

P– X3

TB4

ENHANCED TA2 UNIT

V_TA2

(+24V)

GND_TA2

250 OHMS

P+ 1

P– 2

TB5

THESE GROUNDS

ARE INTERNALLY

TIED TOGETHER

GND_TA2


73

Appendix C

Enhanced TA2 Pulse Output

The Enhanced TA2 has an option for providing a pulse output.

The Pulse is an open collector output; the output can be either a powered (active) connection or a passive connection using an external power supply. With an active output the voltage will go from 0 to 24 VDC (± 10%) with each pulse. The voltage on the passive connection will depend on the power supply used.

One pulse will correspond to a specific amount of flow. There

Frequency: Represents the maximum frequency of the pulses.

This is selectable from 10 to 10,000 Hz. This value should not exceed the maximum input rate of the device receiving the pulses. If the actual pulse output based on the flow measurement exceeds the maximum frequency selected a Warning Message indicating “Pulse Multiplier error” will appear on the display and be communicated over HART. The pulse width is fixed based on the value selected. For instance with a selected maximum frequency of 1,000 each pulse occur every 1/1000 seconds (1 ms).

Each pulse is a square wave with a 50% duty cycle; half of each pulse width is on with voltage applied and half off with no voltage. This results in a pulse width of 0.0005 seconds (0.5 ms).

The pulses are transmitted at a fixed rate for a fraction of a second with no pulses for the remaining time.

When configuring the frequency, calculate the pulse rate by using a Time Factor which is equivalent to the number of seconds in the time period. If flow rate is in units/minute the Time

Factor = 60; if the flow rate is in units/hour the Time Factor =

3600.

are several factors which need to be configured to obtain the desired operation.

Multiplier: The multiplier value is a factor which relates the amount of flow per pulse. For instance a factor of 0.01 with units set to SCF means that each pulse will correspond to 0.01

SCF or conversely there will be 100 pulses for every SCF.

The formula for determining the pulse rate is:

Pulse rate = Flow rate/(Time Factor * multiplier)

Example:

Flow rate = 2,000 SCFH

Time factor = 3600

Multiplier = 0.001 (0.001 SCF/pulse)

The frequency will be equal to 2,000/(3600 * 0.001) = 555 Hz and the maximum frequency can be set to either 1,000 or 10,000.

74


Flow Application Questionnaire

Thermatel Model TA2

(Please fill out in detail.)

BULLETIN: 54-350.7

REFERENCE INFORMATION

Customer/Company:

Contact/Title:

Submitted by:

Phone:

FOR OFFICE USE:

Date:

Fax:

INSTRUMENT

Model Number: Electronics

Remote Cable:

Probe/Flow Body:

Compression Fitting/RPA: Quantity:

PROCESS DATA

Application:

Gas composition (vol%):

Condensed Moisture in Gas? No Yes Dust Buildup? None Light Heavy Type of Dust:

Maximum Normal Minimum

Flow Rate

Temperature

Pressure

Units

STP Conditions

Specify Standard Temperature and Pressure conditions (If not specified Magnetrol uses 70° F and 1 Atmosphere)

Temperature: Pressure: 1 Atmosphere 1 Bar

PIPE DIMENSIONS

Pipe Diameter: or Pipe ID: or Metric Pipe: inch Schedule units mm OD mm wall thickness

DUCT INTERNAL DIMENSIONS

Diameter

Rectangular dimensions

FACTORY CONFIGURATION (Check one)

SCFM*

SCFH*

Nm

Nm

3

3

/min

/h* lbs/min* lbs/h*

SCFD

MSCFD

Nm 3 /d

NI/min lbs/d kg/min*

Flow

Temperature

(TA2-A4)

MMSCFD* NI/h* kg/h*

NI/d kg/d

* Indicates which units are available for F

OUNDATION

™ fieldbus option

4 mA value (0%) 20 mA value (100%)

PROBE LENGTH CALCULATIONS

The probe can be ordered in 0.1 inch or 1 cm increments. This is most important when used with a flange or threaded connection to ensure that the sensor is located on the centerline of the pipe. The active portion of the sensor is located 1" (2.5 cm) from the end of the probe. Refer to illustration at right.

REMARKS

units units

F

1"(2.5 cm)

D/2

D


75

Service Policy

ASSURED QUALITY & SERVICE COST LESS

Owners of MAGNETROL may request the return of a or any part of a control for complete rebuilding or replacement. They will be rebuilt or replaced promptly. Controls returned under our service policy must be returned by prepaid transportation. MAGNETROL will repair or replace the control at no cost to the purchaser (or owner) other than transportation if:

1. Returned within the warranty period; and

2. The factory inspection finds the cause of the claim to be covered under the warranty.

If the trouble is the result of conditions beyond our control; or, is NOT covered by the warranty, there will be charges for labor and the parts required to rebuild or replace the equipment.

In some cases it may be expedient to ship replacement parts; or, in extreme cases a complete new control, to replace the original equipment before it is returned. If this is desired, notify the factory of both the model and serial numbers of the control to be replaced. In such cases, credit for the materials returned will be determined on the basis of the applicability of our warranty.

No claims for misapplication, labor, direct or consequential damage will be allowed.

Return Material Procedure

So that we may efficiently process any materials that are returned, it is essential that a “Return Material

Authorization” (RMA) number be obtained from the factory, prior to the material’s return. This is available through a MAGNETROL local representative or by contacting the factory. Please supply the following information:

1. Company Name

2. Description of Material

3. Serial Number

4. Reason for Return

5. Application

Any unit that was used in a process must be properly cleaned in accordance with OSHA standards, before it is returned to the factory.

A Material Safety Data Sheet (MSDS) must accompany material that was used in any media.

All shipments returned to the factory must be by prepaid transportation.

All replacements will be shipped F.O.B. factory.

705 Enterprise Street • Aurora, Illinois 60504-8149 • 630-969-4000 [email protected] • www.magnetrol.com

Copyright © 2017 Magnetrol International, Incorporated

MAGNETROL & MAGNETROL logotype and THERMATEL are registered trademarks of MAGNETROL International, Incorporated

CSA logotype is a registered trademark of Canadian Standards Association

HART is a registered trademark of the HART Communication Foundation

Hastelloy is a registered trademark of Haynes International, Inc.

PACTware is trademark of PACTware Consortium

Teflon is a registered trademark of DuPont.

BULLETIN: 54-631.2

EFFECTIVE: January 2015

SUPERSEDES: April 2011

54-631 Thermatel® Model TA2 Instruction and

Installation and Operating Manual

Thermatel

®

Enhanced Model TA2

Software v2.x

Thermal

Dispersion

Mass Flow

Transmitter

Thermatel

®

Enhanced Model TA2

Thermal Dispersion Mass Flow Transmitter

Table of Contents

1.0

Quick Start Installation

2.0

Installation

3.0

Reference Information

4.0

Maintenance

Glossary

Appendix A

Appendix A (continued)

Appendix A (continued)

Appendix B

Appendix C

Flow Application Questionnaire

Related manuals

Table of contents

54-631 Thermatel® Model TA2 Instruction and

Installation and Operating Manual

Thermatel

®

Enhanced Model TA2

Software v2.x

Thermal

Dispersion

Mass Flow

Transmitter

Thermatel

®

Enhanced Model TA2

Thermal Dispersion Mass Flow Transmitter

Table of Contents

1.0

Quick Start Installation

2.0

Installation

3.0

Reference Information

4.0

Maintenance

Glossary

Appendix A

Appendix A (continued)

Appendix A (continued)

Appendix B

Appendix C

Flow Application Questionnaire

Related manuals

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54-241

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Table of contents