Rosemount GDU-PTV Manuals & Guides

Rosemount™ GDU-PTV

Performance Target Verification Kit

Reference Manual

00809-0100-4910 , Rev AA

April 2018

Contents

Contents

Chapter 1 Introduction .....................................................................................................................1

Chapter 2 Safety guidelines ..............................................................................................................3

2.1 Liability ...........................................................................................................................................3

2.2 Personal protection equipment ......................................................................................................3

2.3 Rosemount GDU-PTV apparatus .................................................................................................... 3

Chapter 3 Operational procedure .....................................................................................................5

3.1 Mechanical illustration and connections .........................................................................................5

3.2 Performance test ............................................................................................................................6

Reference Manual i

Contents

ii Rosemount GDU-PTV

1 Introduction

The Rosemount™ GDU-PTV performance target verification kit provides an accurate
method to test both functionality and performance of the GDU-Incus ultrasonic gas leak
detector. The Rosemount GDU is an omni-directional airborne leak detector that responds
to pressurized gas leaks.

This detector complements traditional gas detection methods used in refineries, gas
plants, and offshore installations. Ultrasonic gas detectors are the only type of hazard (fire
or gas) detection product in which the performance target set out in the installation safety
case can be verified meaningfully and safely.

The Rosemount GDU-PTV generates a burst release representative of that expected in the
event of an incident. The Rosemount GDU-PTV is portable and can be used by a single
person.

Introduction

Reference Manual 1

Introduction

2 Rosemount GDU-PTV

2 Safety guidelines

WARNING!

HIGH PRESSURE
The cylinders of the Rosemount GDU-PTV contain high pressure nitrogen. For this reason,
ensure that the nozzle for the nitrogen release is not pointing in the direction of any personnel
or equipment within a range of five meters.

WARNING!

Before you begin operating the GDU-PTV, make certain that all connections between cylinders,
hoses, regulators, and valves are fully sealed and tightened accordingly. The cylinder removal
retainer should also be firmly attached using all four bolts as detailed in Section 3.1.

2.1 Liability

Safety guidelines

2.2

2.3

All liability for the correct function of the Rosemount GDU-PTV is irrevocably transferred to
the owner / operator to the extent that the Rosemount GDU-PTV is altered or installed
incorrectly by personnel not authorized by Rosemount or if the Rosemount GDU-PTV is
used in a non-conformance to its intended use.

Personal protection equipment

Personal protection equipment (PPE) covers the following, as a minimum:

• Thick gloves

• Safety glasses

• Ear plugs

• Hard hat

• Safety footwear

Rosemount GDU-PTV apparatus

• Rosemount GDU-PTV trolley with cylinder retainers

• 2 off 150 bar nitrogen (N2) cylinders

• High pressure hose from cylinders to regulator

• High pressure regulator

• High pressure hose from regulator release pressure gauge

• Ball valve and nozzle

Reference Manual 3

Safety guidelines

4 Rosemount GDU-PTV

Operational procedure

3 Operational procedure

3.1 Mechanical illustration and connections

Mechanical IllustrationFigure 3-1:

A. Trolley
B. Regulator
C. Regulator hose
D. Teflon hose
E. Orifice plug
F. Ball valve
G. Gauge 0-100bar
H. Male connector
I. Female tee
J. Male hex nipple

Reference Manual 5

Operational procedure

K. Pipe clamp 25-28 mm
L. Pipe clamp 14-15 mm
M. M8 x 20 socket cap screws
N. Refillable 10 liter steel cylinders filled with N

2

Parts ListTable 3-1:

Item Quantity Description Part number Manufacturer

A 1 Trolley CT-TROLLEY-001 Precision Fab

B 1 Regulator 492-2802-BS3 C K Gas Products

C 1 Regulator hose AHE80009 C K Gas Products

D 1 Teflon hose SS-4MBHT-36 Bristol Fluids

E 1 Orifice plug GDU-PVT-01-010 Emerson

F 1 Ball valve 4F-B6LJ2-SSP Fluid Controls

G 1 Gauge 0-100 bar 232.30.063.100bar/

psi

H 3 Male connector 4MSC4N-316 Fluid Controls

I 1 Female tee 4-4-4FT-SS Fluid Controls

J 1 Male hex nipple 4-4MHN-SS Fluid Controls

K 2 Pipe clamp 25 -

28 mm

L 2 Pipe clamp 14 - 15 mm 197-1492

M 4 M8 x 20 socket cap

screws

N 2 Refillable 10 liter steel

cylinders filled with N

197-1521 RS Components

Consumable Fastener WH

2

Fluid Controls

Specialty Gases

™

• The Rosemount™ GDU-PTV cylinders should be securely attached using the cylinder

retainers. There are four bolts for attaching the removable cylinder retainer that
must all be in place and tightened to ensure the cylinders are locked in position.

• All hose connections must be safely secured, and it must be ensured that no leaks

are present.

• Pneumatic tires must be inflated.

• All valves must be closed when the equipment is not in use. After the regulator and

cylinder valves have been closed, the ball valve on top of the Rosemount GDU-PTV
should be opened slowly to bleed off any excess pressure.

3.2

Performance test

Complete the following test to see if the Rosemount GDU-PTV is working correctly.

6 Rosemount GDU-PTV

Operational procedure

Prerequisites

Position the trolley of the Rosemount GDU-PTV at the required distance with the nozzle
pointing at the detector before testing can commence. Only begin testing when the
equipment is in position on a flat even surface.

Procedure

1. Fully open the cylinder valve on the connected cylinder and observe the pressure on
the cylinder pressure gauge.

2. Dial up the required pressure using the regulator adjuster.

The Rosemount GDU-PTV is now prepared for a gas release. Make certain that no
personnel are in front of the Rosemount GDU-PTV nozzle.

The type of release expected in real service would be generated from a continuous
source of pressured gas. Using portable test equipment, it is not possible to recreate
this sound source for the whole duration of the control system time delay. For this
reason, remove all alarm delays for the duration of the test.

3. Contact the control room to verify the output of the correct GDU-01. The
Rosemount GDU-PTV is a burst release; record the immediate milliampere output of
the GDU-01.

4. Following confirmation from the control room, open the ball valve on top of the
Rosemount GDU-PTV briefly and then close it.

5. Confirm with the control room that an output from the GDU-01 under test has been
observed and recorded.

Postrequisites

After performance verification testing has been completed, close all valves. Before the
Rosemount PTV can be moved to the next test location, ensure that the regulator adjuster
is closed and then open the ball valve to bleed off any pressure left in the output hose.

Reference Manual 7

00809-0100-4910

Rev AA

2018

GLOBAL HEADQUARTERS

6021 Innovation Blvd.
Shakopee, MN 55379

[phone]
[phone]
[e-mail]

EUROPE

Emerson Automation Solutions
Neuhofstrasse 19a PO Box 1046
CH-6340 Baar
Switzerland

[phone]
[phone]
[e-mail]

Linkedin.com/company/Emerson-Automation-Solutions

twitter.com/rosemount_news

Facebook.com/Rosemount

youtube.com/RosemountMeasurement

google.com/+RosemountMeasurement

AnalyticExpert.com

MIDDLE EAST AND AFRICA

Emerson Automation Solutions
Emerson FZE
Jebel Ali Free Zone
Dubai, United Arab Emirates, P.O. Box 17033

[phone]
[phone]
[e-mail]

©

2018 Emerson. All rights reserved.

The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a
mark of one of the Emerson family of companies. All other marks are the property of their
respective owners.

ASIA-PACIFIC

Emerson Automation Solutions
1 Pandan Crescent
Singapore 128461
Republic of Singapore

[phone]
[phone]
[e-mail]