Bacharach Gas Pup Manuel utilisateur

Gas Pup®

Natural Gas &

Pressure Detection

Instruction 55-9002

Operation & Maintenance

Rev. 1 – December 2003

Product Leadership • Training • Service • Reliability

WARRANTY

Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in material

and manufacture and will conform substantially to Bacharach Inc.’s applicable specifications. Bacharach’s

liability and Buyer’s remedy under this warranty are limited to the repair or replacement, at Bacharach’s

option, of this Product or parts thereof returned to Seller at the factory of manufacture and shown to

Bacharach Inc.’s reasonable satisfaction to have been defective; provided that written notice of the defect

shall have been given by Buyer to Bacharach Inc. within one (1) year after the date of delivery of this Product

by Bacharach, Inc.

Bacharach, Inc. warrants to Buyer that it will convey good title to this Product. Bacharach’s liability and

Buyer’s remedy under this warranty of title are limited to the removal of any title defects or, at the election of

Bacharach, to the replacement of this Product or parts thereof that are defective in title.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF (I)

ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND

(II) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR

NOT ARISING FROM BACHARACH’S NEGLIGENCE, ACTUAL OR IMPLIED. The remedies of the Buyer

shall be limited to those provided herein to the exclusion of any and all other remedies including, without

limitation incidental or consequential damages. No agreement varying or extending the foregoing warranties,

remedies or this limitation will be binding upon Bacharach, Inc. unless in writing, signed by a duly authorized

officer of Bacharach.

AInstruction 55-9002

To Register Your Warranty, Visit

www.bacharach-inc.com

Notice:

Product improvements and enhancements are continuous, therefore the specifications and information

contained in this document may change without notice.

Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in

connection with the furnishing, performance, or use of this material.

No part of this document may be photocopied, reproduced, or translated to another language without the prior

written consent of Bacharach, Inc.

BACHARACH®and Pup®are a registered trademarks of Bacharach, Inc.

All other trademarks, trade names, service marks and logos referenced herein

belong to their respective companies.

Declaration of Conformity

Manufacturer’s name: Bacharach, Inc.

Manufacturer’address: 621 Hunt Valley Circle

New Kensington, PA15068-7074

European operations: Bacharach Europe

Sovereign House, Queensway

Royal Leamington Spa

Warwickshire CV31 3JR

United Kingdom

Product name: Gas Pup

conforms to the following specifications:

European Directive 89/336/EEC

EN 50081-1: 1992 (Emissions)

EN 50082-1: 1998 (Immunity)

EN 61000-4-2: 1995 (Electromagnet)

EN 61000-4-3: 1995 (Electromagnet)

Gas Pup

Instruction 55-9002

Contents

Safety Information ....................................................................... iii

Introduction..................................................................................... 1

General Description ................................................................................1

Components .............................................................................................2

Natural Gas Detection .......................................................................2

Pressure Detection .............................................................................2

Sample Pump .....................................................................................2

Batteries .............................................................................................2

Case.....................................................................................................2

Control Panel Description ......................................................................3

Gas and Pressure Fittings ......................................................................4

Technical Characteristics............................................................. 5

Operation .......................................................................................... 6

Operating Precautions (Please Read) ....................................................6

Battery Installation.................................................................................7

Turning ON the Gas Pup........................................................................8

Turning OFF the Gas Pup ....................................................................10

Backlighting ..........................................................................................11

Battery Voltage Check ..........................................................................11

Gas Operating Mode .............................................................................11

Auto-Ranging....................................................................................12

Fixed HI% Range..............................................................................12

PPM Range .......................................................................................13

LO% (Low Percent) Range ...............................................................13

HI% (High Percent) Range...............................................................14

Pressure Operating Mode .....................................................................14

Selecting the Pressure Mode............................................................14

High Pressure Mode.........................................................................16

Low Pressure Mode ..........................................................................16

Delta Pressure Mode ........................................................................16

Using the Probe’s Filter Chamber........................................................18

Foam Filter Element – Particulate Filtration.................................18

Charcoal Filter – Petroleum Vapors vs. Combustible Gases..........18

Water/Filter Trap ..................................................................................20

Error Messages......................................................................................21

Gas Pup

Instruction 55-9002

Contents

Calibration ..................................................................................... 22

Gas Calibration Equipment Setup .......................................................22

Gas Calibration Procedure ...................................................................23

Pressure Sensor Check .........................................................................27

Maintenance................................................................................... 28

Batteries ................................................................................................28

Sampling Probe .....................................................................................28

Gas Inlet Filter Replacement ...............................................................29

Pump Replacement ...............................................................................29

Combustibles Sensor Replacement ......................................................30

Leak Check Basics ................................................................................30

Parts & Service.............................................................................. 32

Replacement Parts ................................................................................32

Accessories.............................................................................................33

Service Centers .....................................................................................34

Safety

Safety is essential in the use and maintenance of Bacharach equipment.

Therefore this manual and any marking on the instrument provide

important safety information concerning the operation, care, and mainte-

nance of this instrument.

All operating and maintenance personnel should read and understand the

contents of this manual before operating or maintaining the instrument.

Observe all of the safety information provided.

Safety Alert Symbol

This symbol together with the word WARNING or CAUTION is used to

call a user’s attention to hazards or unsafe practices that could result in

injury or property damage. The message that follows provides informa-

tion for preventing or avoiding the hazard.

WARNING: Informs the user of hazards or unsafe practices that

if not avoided could result in severe personal injury or death.

CAUTION: Informs the user of hazards or unsafe practices that

if not avoided could result in personal injury or property damage.

Purpose of Manual

This instruction manual is intended to familiarize all personnel with the

safe operation and maintenance procedures for the Bacharach Gas Pup.

Please retain this manual for future reference.

Gas Pup Safety

iii

Instruction 55-9002

Notes:

iv Instruction 55-9002

Gas PupSafety

Instruction 55-9002 1

Gas Pup Introduction

Introduction

General Description

The Bacharach Gas Pup (Figure 1)

is a natural gas detection instru-

ment designed for general leak

detection, barholing operations,

regulator pressure checks, and line

pressure integrity operations. It

offers measurement of natural gas

(as methane) in the following three

ranges:

•PPM (Low) Range: Gas level

displayed in 0 to 2500 ppm as a

bar graph, allowing visual indica-

tion of the peak reading. Useful

for locating leaks in piping.

•LO% (Mid Percent) Range:

Measures natural gas in the

range of 0.2–5.0% by volume,

which corresponds to the lower

explosive limit (LEL) of methane.

•HI% (High Percent) Range: 0–100% by volume is useful in “pin

pointing” leaks in underground piping through barhole testing

The Gas Pup also features three pressure modes: High (0 to 99 psig);

Low (–9.9 to 9.9 psig); and Delta (displays a pressure change in the range

of ±9.9 psig from any reference pressure between 0 and 90 psig).

Three ‘AA’ batteries power the instrument. Pressing the key for at

least 1 second turns the instrument ON; after which, the battery voltage

is briefly displayed, followed by the gas and pressure sensors being

zeroed, and then followed by the display of the detected gas level.

The Gas Pup’s gas display is auto ranging, automatically switching

between its PPM, LO%, and HI% ranges as the detected gas level rises

and falls. The Gas Pup’s pressure-operating mode is selected by pressing

the key while the word “GAS” is being displayed during the

instrument’s warm-up period.

Figure 1. Gas Pup shown with

Probe and Coiled Tubing

Gas Pup

2Instruction 55-9002

Introduction

Components

Natural Gas Detection

The instrument’s PPM and LO% ranges use a catalytic-bead detection

circuit, which is the most widely accepted method of detecting combus-

tible gases. The HI% range uses the thermal-conductivity method of

detection, which is a reliable method for measuring the concentration of

one gas in a second gas (methane in air).

Pressure Detection

The instrument contains a solid-state pressure sensor that supports the

instrument’s three pressure modes (High, Low & Delta). The optional

Pressure Hose Kit accessory with fittings (P/N 55-0038) can be used to

connect the instrument’s quick-connect pressure fitting to the pressure

source.

Sample Pump

An internal sample pump draws a gas sample into the instrument for

analysis. This is a convenience in the LO% and HI% gas ranges, providing

a more reliable and accurate test of gas levels. It is also important in the

PPM range to achieve a stable gas reading at low gas concentrations.

The sample pump includes a flow-failure function. If the flow is blocked

(e.g., clogged filter or crimped hose), the display will blink the letters

“F P” in the READING window. When the pump returns to normal

operation, the display stops blinking.

Batteries

Three ‘AA’ alkaline batteries supply power to the instrument. A fresh set

of batteries will typically last 6–8 hours, depending on how the instru-

ment is used. The batteries are housed in a battery block internal to the

instrument, and are protected with a metal cover and retained by two

thumbscrews. This design allows the batteries to be quickly replaced in

an area known not to contain explosive gases.

Case

The instrument is housed in an anodized extruded aluminum case. The

instrument is rugged, resistant to water and electromagnetic interfer-

ence. Rubber-bumper guards provide impact protection on both ends of

the instrument.

Instruction 55-9002 3

Gas Pup

Control Panel Description

Two pushbutton controls and a large LCD are conveniently located at the

top of the instrument. The backlit LCD provides highly readable indica-

tions of natural gas or pressure in any lighting condition ranging from

direct sunlight to total darkness.

The control panel consists of the following three windows and two

pushbutton keys:

•READING Window: A two-digit display that is used to primarily display

the concentration of natural gas in the LO% and HI% gas ranges. The

READING window also displays pressure readings when the instru-

ment is operating in any one of its three pressure modes.

Introduction

Figure 2. Controls and Indicators

Bar Graph Window

(active only in the HI%

and ppm ranges,

showing 25% gas)

READING Window

(showing 25% gas)

RANGE Window

(range pointer showing

that instrument is in its

HI% range)

Range Identifiers

Function Key

Power ON/OFF Key,

plus Backlight ON/OFF

Gas Pup

4Instruction 55-9002

•Bar Graph Window: Provides a real time moving display of the natural

gas concentration to give a better ‘feel’ of when the gas level has

reached a peak. The bar graph is active only in the PPM and HI%

ranges.

•RANGE Window: Identifies the range in which the instrument is

currently operating. This is accomplished by means of a pointer, which

in conjunction with range-labels printed on the display overlay, define a

range for the gas reading.

•Key: Turns the instrument, and also the backlight, ON and OFF.

•Key: Changes the instrument’s function as determined by its current

operating mode, thus allowing a variety of functions to be selected with

just one pushbutton. Refer to text in this manual’s Operating section for

details.

Gas and Pressure Fittings

Two quick-connect fittings (Figure 3) provide convenient connections to

the gas probe and pressure hose assemblies.

The gas fitting mates with a quick-connect female plug, while the pres-

sure fitting mates with a quick-connect male plug.

Introduction

Figure 3. Gas and Pressure Fittings

Gas

Fitting

Pressure

Fitting

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