EI QVT Manuale utente

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

QVT MULTIVARIABLE TRANSMITTER

QVT

INSTALLATION & OPERATION

MANUAL

REV 8/22

REVISION VERSION 1.0.51

ORIGINAL LANGUAGE

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

TABLE OF CONTENTS

SAFETY

Safe Operaon................................................................................................................. 3

INTRODUCTION

The QVT Mulvariable Transmier................................................................................ 4

GETTING TO KNOW THE QVT

Exploded View of the QVT Transmier.......................................................................... 5

QVT Transmier Schemac............................................................................................ 6

Close‐Up of the IO Board ‐Wiring Terminals ................................................................. 7

Close‐Up of the Processor Board/LCD Board ................................................................. 7

QUICK START UP GUIDE ........................................................................................................... 8

BOOT SEQUENCE ...................................................................................................................... 9

MECHANICAL INSTALLATION

Mechanical Installaon: Mounng the QVT ................................................................ 10

Tubing the QVT.............................................................................................................. 14

ELECTRICAL INSTALLATION

Accessing the Wiring Connectors of the QVT............................................................... 16

Using the Wiring Connectors ........................................................................................ 17

Wiring the QVT .............................................................................................................. 18

4‐20 mA Loop Power................................................................................................... 19

RTD Temperature Sensor Input .................................................................................. 21

OPTIONS

Purge System (Oponal) ............................................................................................... 23

Using the 3‐Way Valve .................................................................................................. 25

GETTING TO KNOW YOUR LCD SCREEN................................................................................. 26

PROCEDURES

Changing the Ae Number.............................................................................................. 27

Changing the EFS (Electronic Full Scale) ...................................................................... 28

Changing the Units of Measure .................................................................................... 29

Zero DP1 Diﬀerenal Pressure Measurement ............................................................. 30

Zero Process Temperature............................................................................................ 32

Revert to Factory Sengs (Factory Restore) ............................................................... 34

QVT SPECIFICATIONS.............................................................................................................. 35

DIMENSIONAL DRAWINGS..................................................................................................... 39

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

PLEASE READ BEFORE OPERATING YOUR NEW MULTIVARIABLE TRANSMITTER

 For personal/system safety as well as for opmum performance reasons, please read and

understand this manual before working with the transmier.

 Check for damaged parts before operang the transmier. Any damaged part should be

properly repaired or replaced by trained personnel. Do not operate the transmier if any

component does not appear to be funconing correctly. Contact Eastern Instruments for

assistance or for repair components.

 Ensure that only trained personnel perform installaon of the transmier.

 Ensure that assembly of the transmier to a ﬂange or manifold of some kind is done

properly as improper assembly could lead to damage of the sensors of the transmier or

could render the transmier dangerous. Failure to follow the installaon guidelines with‐

in this manual could cause serious injury or death.

 If the transmier is installed in a high‐voltage environment, it is possible that a fault or in‐

stallaon error could cause high voltage to be present on the transmier leads and termi‐

nals. Electrical shock could cause serious injury or death.

 Use only replacement components or installaon bolts supplied by Eastern Instruments as

non‐approved components or installaon hardware may render the transmier danger‐

ous and could lead to serious injury or death.

 For Technical Assistance, please contact us:

Eastern Instruments

416 Landmark Drive

Wilmington, NC 28412

SAFETY

SAFE OPERATION

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

THE QVT MULTIVARIABLE TRANSMITTER

The QVTTM Mulvariable Transmier from Eastern Instruments is a Smart Transmier that can

be used for the accurate measurement of up to four separate process variables including

Diﬀerenal Pressure, Temperature and Absolute Pressure. When coupled with any DP based

ﬂow measurement element, the QVTTM will calculate the fully compensated mass ﬂow of air/

gas travelling through any process which is at or near atmospheric pressure (5 ‐25 psia). The

QVT will accept a Process Temperature signal from an external RTD and will simultaneously

measure the Diﬀerenal Pressure and Absolute Pressure from a coupled ﬂow element. The

QVT will be as accurate whether coupled with an Eastern Instruments ﬂow element or wheth‐

er it is coupled with a ﬂow element from the manufacturer of your choosing. Using these in‐

puts, the QVT will calculate a compensated mass ﬂow rate and will give an output proporonal

to this compensated mass ﬂow rate via a 4‐20 mA signal. Please note that the 4‐20 mA signal

can be fully compensated (live measurement of DP, AP and Temperature), parally compen‐

sated (live measurement of DP only) or the values for the Process Variables (DP, AP or Tem‐

perature) can be output via the 4‐20 mA signal as well.

INTRODUCTION

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

Exploded View of QVT Transmier

GETTING TO KNOW THE QVT

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

QVT Transmier Schemac ‐Shown with oponal 3‐Valve Manifold and Purge System

3‐Valve Manifold

(Recommended Accessory)

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

Close‐up of the IO Board ‐Wiring Terminals

Close‐up of the Processor Board/LCD Board

The 4‐20 mA Connector The RTD Connector

Board Snap Mounts

Snap Mounng Holes

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

VERIFY PROPER MECHANICAL INSTALLATION

 Verify that the QVT is properly mounted (See “Mechanical Installaon: Mounng

the QVT” secon of the QVT I&O Manual for Addional Info)

 Verify that the High and Low Ports of your ﬂow element are properly tubed to the

transmier/manifold/purge system (See “Tubing the QVT” secon of the QVT I&O

Manual for Addional Info)

VERIFY PROPER WIRING OF THE QVT

 Verify that the proper power has been supplied to the QVT (See “Wiring the QVT: 4

‐20 mA Loop Power” secon of the QVT I&O Manual for Addional Info)

 If using an RTD to measure the process temperature, verify that the RTD is properly

wired (See “Wiring the QVT: RTD Temperature Sensor Input” secon of the QVT

I&O Manual for Addional Info)

PERFORM ZERO OF THE DP1 DIFFERENTIAL PRESSURE

 (See “Procedures: Zero DP1 Diﬀerenal Pressure Measurement” secon of the

QVT I&O Manual for Addional Info)

VERIFY COMMUNICATION (4‐20 mA OUTPUT)

 Compare the readings on your PLC/DCS with the values of the output variable

shown of the QVT screen. (Example: 0 lb/hr on the QVT would equate to 4 mA of

output)

QUICK START UP GUIDE

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

Aer powering on the QVT, the transmier will proceed through a boot sequence followed by

an automated scrolling of key values and sengs within the QVT.

BOOT SEQUENCE

AUTO SCROLL SEQUENCE

Manual Scrolling of the displays shown in the Auto Scroll Sequence is possible by pressing the

“PRG” Buon repeatedly unl the desired display is shown. The display will be shown for ap‐

proximately 2 hrs before returning to the Auto Scroll Sequence.

BOOT SEQUENCE

Upon Boot/Reboot the so‐

ware version (le) will be

displayed, followed by a

Pass/Fail screen denong

whether the soware has

loaded properly (right). Up‐

on a successful Boot (Pass),

the Auto Scroll Sequence

(below) will begin.

Upon a successful Boot Se‐

quence (Above), the Auto

Scroll Sequence will begin.

Each value will be shown

sequenally for 1.5 seconds

each. Upon compleon, the

sequence will start over

again automacally.

dP Display

Temperature Display 4-20 mA Full ScaleMass Flow Display

AP Display

Phone:(910) 392‐2490

Fax: (910) 392‐2123

416 Landmark Drive

Wilmington, NC 28412 www.easterninstruments.com

MECHANICAL INSTALLATION: MOUNTING THE QVT

The QVT can either be mounted via an oponal mounng bracket which allows the transmier

to be mounted to either a vercal or horizontal 2” pipe, or, if the transmier is purchased with

ﬂow elements from Eastern Instruments, the transmier will be mounted directly to the ﬂow

element (VAP Pitots, DSV Duct Secon or HBP High Beta Flow Condioner). Detailed dimen‐

sional drawings are included within this secon of the manual. The suggested installaon lo‐

caon depends upon the process, but in general, for air and gas ﬂow measurement, the trans‐

mier is suggested to be located above the tap for the air/gas ﬂow measurement so that con‐

densate that may collect in the impulse lines, can drain away from the transmier.

MECHANICAL INSTALLATION

Mount Bracket for QVT: Pipe Mount Mount Bracket for QVT w/ Manifold: Pipe Mount

Mount Bracket for QVT: Panel Mount Mount Bracket for QVT w/ Manifold: Panel Mount

5/16” x 1.75” Bolt For

QVT Mounng

1 1/2” Size U‐Bolt

For Pipe Mounng

1 1/2” Size U‐Bolt

For Pipe Mounng

M8 x 1.25 For Transmier

Manifold Mounng

5/16” x 1.75” Bolt For

QVT Mounng

5/16” x 1.75” Bolt For

Panel Mounng

M8 x 1.25 For Transmier

Manifold Mounng

5/16” x 1.75” Bolt For

Panel Mounng

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