EI QVT Installation & Operation Manual

Multivariable transmitter

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QVT MULTIVARIABLE TRANSMITTER

QVT

INSTALLATION & OPERATION

MANUAL

REV 8/22

REVISION VERSION 1.0.51

ORIGINAL LANGUAGE

416 Landmark Drive

Phone:(910) 392‐2490

www.easterninstruments.com

Wilmington, NC 28412

Fax: (910) 392‐2123

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Page 1 QVT MULTIVARIABLE TRANSMITTER INSTALLATION & OPERATION MANUAL REV 8/22 REVISION VERSION 1.0.51 ORIGINAL LANGUAGE Copyright© 2022 Eastern Instrument Laboratories, Inc. All Rights Reserved. 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 2: Table Of Contents
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 ..............
Page 3: Safety
SAFETY SAFE OPERATION 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.
Page 4: Introduction
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‐...
Page 5: Getting To Know The Qvt
GETTING TO KNOW THE QVT Exploded View of QVT Transmi er 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 6: Qvt Transmi Er Schema C
QVT Transmi er Schema c ‐ Shown with op onal 3‐Valve Manifold and Purge System 3‐Valve Manifold (Recommended Accessory) 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 7: Close-Up Of The Io Board - Wiring Terminals
Close‐up of the IO Board ‐ Wiring Terminals The RTD Connector The 4‐20 mA Connector Board Snap Mounts Close‐up of the Processor Board/LCD Board Snap Moun ng Holes Snap Moun ng Holes 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 8: Quick Start Up Guide
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) ...
Page 9: Boot Sequence
BOOT SEQUENCE 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 Upon Boot/Reboot the so ‐ ware version (le ) will be...
Page 10: Mechanical Installation
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...
Page 11 Ver cal Pipe Mount ‐ Transmi er Only Horizontal Pipe Mount ‐ Transmi er Only 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 12 Ver cal Pipe Mount ‐ Transmi er and 3‐Way Valve Manifold Horizontal Pipe Mount ‐ Transmi er and 3‐Way Valve Manifold 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 13 Ver cal Pipe Mount ‐ Transmi er, 3‐Way Valve Manifold and Purge System Horizontal Pipe Mount ‐ Transmi er, 3‐Way Valve Manifold and Purge System 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 14: Tubing The Qvt
TUBING THE QVT Process Connec ons are made to the bo om of the QVT via 1/4” NPT female connec ons on 2 1/8” Centers. Please note that if the op onal 3‐Way Valve or the Purge System were pur‐...
Page 15 QVT Transmi er with 3‐Way Valve Process Connec ons QVT Transmi er with 3‐Way Valve and TMP Purge System Process Connec ons 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 16: Electrical Installation
Processor Board or LCD Circuit Board. Once the cover has been removed, your QVT should look similar to the picture #1 on the right. 2. Remove the Processor Board or LCD Circuit Board.
Page 17: Using The Wiring Connectors
USING THE WIRING CONNECTORS Female Connector Wire Gauge: 24 – 14 AWG Strip Length: 8 – 9 mm Gripping Plate with Sliding Connector Release Push‐Bu on Test Port Female Locking Latch High‐Alloy Stainless Steel (CrNi) Clamping Spring Electroly c Copper (E‐Cu) Tin‐Plated Contact Bridge Male Locking Latch Original Size:...
Page 18: Wiring The Qvt
WIRING THE QVT There are two parts to wiring the QVT. For all versions of the QVT, 4‐20 mA loop power must be supplied. For mul variable transmi ers in which Process Temperature will be measured, an RTD must also be wired to the QVT. The wiring connec ons for both the 4‐20 mA loop power and the RTD inputs are located behind the LCD circuit board inside the head of the transmi er.
Page 19: 4-20 Ma Loop Power
4‐20 MA LOOP POWER: Type 2‐2 Wire Circuit QVT Transmi er RECEIVER The 4‐20 mA loop transmi er in the QVT IN SERIES POWER is a TYPE 2‐2 Wire Circuit as deﬁned in SUPPLY ANSI/ISA‐50.00.01‐1975 (R2012) PARALLEL ‐ shown in the sketch (right) and is ‐...
Page 20 Be sure to check your load resistance in the output current loop as too high a load resistance will cause malfunc on or incorrect opera on of the QVT transmi er. Below are two methods of determining whether the load resistance exceeds the allowable opera onal limit.
Page 21: Rtd Temperature Sensor Input
DO NOT GROUND THE SHIELD TO THE QVT TRANSMITTER! Although the QVT RTD input cancels lead resistance, it is best to use the minimum lead re‐ sistance in case they are unequal. It is highly recommended to connect to ground the Shield of longer cables, typically greater than 10 feet in length.
Page 22 (not between ‐355°F[‐215°C] and +1589°F [865°C]) , due to a break, short or some other condi on, then the QVT will revert to its sta c "Entered" value for Temperature for use in its mass ﬂow calcula on.
Page 23: Purge System (Op Onal)
Theory of Opera on The TMP is a con nuous purge system which is an op onal adder to the QVT Transmi er. The TMP is designed to supply a con nuous balanced ﬂow of air through the impulse lines. The unit consists of an anodized aluminum purge block and capillary/internal ﬁlter set with ports...
Page 24 LMP. Use this as a guide during installa on.  If the op onal moun ng bracket for the QVT/TMP was purchased, use this to mount the transmi er with purge to its moun ng loca on. (If the Transmi er has not been installed, then do this ﬁrst.)
Page 25: Using The 3-Way Valve
USING THE 3‐WAY VALVE QVT TRANSMITTER PROPER SETUP If your QVT transmi er was purchased with a 3‐way block valve, the valve should come mounted to the transmi er from the factory. One of the isola on EQUALIZATION valves will be connected to the High Port on the...
Page 26: Getting To Know Your Lcd Screen
The two bu ons are labeled “PRG” or the Program Bu on and “Zero” or the Zero Bu on. If powered up (with no bu on pushes) the QVT screen will cycle through the various process variable display screens. The screen dis‐ plays are listed below: DP1: Diﬀeren al Pressure (example: in WC)
Page 27: Procedures
CHANGING THE Ae NUMBER This is a procedure for changing the Ae number within your QVT. The Ae number is a constant that reﬂects the Eﬀec ve Area of the duct. The Ae number comprises the duct area, the ﬂow sensor and the calibra on factor/constant.
Page 28: Changing The Efs (Electronic Full Scale)
CHANGING THE EFS (Electronic Full Scale) This is a procedure for changing the EFS or Electronics Full Scale of the QVT. Changing the EFS allows you to change the scale of the 4‐20 mA output. Please note that the units for the EFS value are the same units as the currently selected 4‐20 mA output.
Page 29: Changing The Units Of Measure
CHANGING THE UNITS OF MEASURE This is a procedure for changing the units of your QVT. Please note that changing the units will not automa cally change either the Full Scale or the Ae Number (in the case of Flow Outputs).
Page 30: Zero Dp1 Differen Al Pressure Measurement
0. Please note when returning to typical opera on, you must ﬁrst open the Low Port Valve, then close the Equaliza on Valve and ﬁnally, reopen the High Port Valve to ensure no damage to the QVT. Performing a Zero for DP1 1.
Page 31 The zero for the Diﬀeren al Pressure sensor will not be changed in regards to the QVT’s output un l the Zero Procedure has been completed. ZERO FAILURE: The Diﬀeren al Pressure can not be zeroed if the pressure is outside of the designated Zero range (+/‐ 0.01 in WC or 0.25 mmWC).
Page 32: Zero Process Temperature
Using the 0 deg C Temperature Simulator 1. Remove power from the QVT. Wiring the QVT while the QVT has power turned on can result in damage to the LCD Board Snap Mounts Board and can cause failure of the QVT.
Page 33 9. Replace the LCD Board and QVT Cover. 10. Return power to the QVT. The zero will not be changed in regards to the QVT’s output un l the Zero Procedure has been completed. Please Note: The Temperature can not be zeroed if the temper‐...
Page 34: Revert To Factory Se Ngs (Factory Restore)
If you would like to revert to the factory se ngs please follow the below procedure. These factory se ngs are displayed on the QVT Placard that was originally shipped with the unit and can be found on the side of the transmi er (Image #1).
Page 35: Qvt Specifications
QVT SPECIFICATIONS MEASURED VARIABLE SENSOR PERFORMANCE 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 36 MEASURED VARIABLE SENSOR PERFORMANCE 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 37 SENSOR LIMITS 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 38 4‐20 mA OUTPUT Zero and Span Adjustment Zero and Span can be set anywhere within the range of the sensors listed. The 2‐wire 4‐20 mA output is user‐selectable for either a standard square root output (0.5 power) or for Eastern Instruments’...
Page 39: Dimensional Drawings
DIMENTIONAL DRAWINGS QVT TRANSMITTER 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 40 QVT TRANSMITTER WITH 3‐WAY VALVE 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...
Page 41 QVT TRANSMITTER WITH 3‐WAY VALVE AND PURGE 416 Landmark Drive Phone:(910) 392‐2490 www.easterninstruments.com Wilmington, NC 28412 Fax: (910) 392‐2123...