Bacharach Tru Pointe Manuel d'utilisation

Tru Pointe™

Refrigerant Leak Detector

Instruction 0019-9328

Operation & Maintenance

Rev. 3 – May 2010

Product Leadership • Training • Service • Reliability

AInstruction 0019-9328

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 ANDARE GIVEN AND ACCEPTED IN LIEU OF (I) ANY

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

PLIED WARRANTIES OF MERCHANTABILITYAND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY

OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR NOTARIS-

ING 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 limita-

tion will be binding upon Bacharach, Inc. unless in writing, signed by a duly authorized ofﬁcer of Bacharach.

Notice:

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

tained in this document may change without notice.

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

nection 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 Tru Pointe are 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, PA 15068-7074

European Operations: Bacharach Europe

Sovereign House, Queensway

Royal Leamington Spa

Warwickshire CV31 3JR

United Kingdom

Product name: Tru Pointe

conforms to the following speciﬁcations:

EMC Directive 89/336/EEC EN50081-1:1992

EN61000-4-2:1995 EN61000-4-3:1995

EN50082-1:1997 Light Industrial EN50082-1:1998

EN55011:1998 Group 1,Class B

Tru Pointe

Instruction 0019-9328

Contents

Introduction .................................................................................................2

Features.........................................................................................................3

Technical Characteristics .........................................................................4

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

Battery Installation ............................................................................6

Turning the Instrument ON / OFF....................................................7

Low Battery Indication.......................................................................8

Selecting High / Low Sensitivity Mode..............................................8

Procedure for Locating a Refrigerant Leak.......................................8

Sensor Failure Indication...................................................................9

False Refrigerant Indication ............................................................ 10

SAE Leak Detection Tips .................................................................10

Maintenance ...............................................................................................12

Routine Maintenance........................................................................12

Sensor Replacement ......................................................................... 13

Troubleshooting Guide ............................................................................14

Parts & Service ..........................................................................................16

Replacement Parts............................................................................16

Sales/Service Centers .......................................................................16

Tru Pointe

Instruction 0019-9328

Figure 1. Tru Pointe Refrigerant Leak Detector

Introduction

The Tru Pointe Refrigerant Leak Detector (Figure 1) is a portable, battery

powered instrument designed to pinpoint the location of refrigerant leaks

in air conditioning and refrigerant systems, chillers, or cold storage units.

The use of heated-diode sensor technology allows the instrument to be

quickly responsive to all refrigerants, even when high background levels

of refrigerant vapors are present. No manual sensitivity adjustments are

necessary during the inspection process.

The instrument is suitable for HVAC Service Technicians, Refrigerant

Service Technicians, Plant Maintenance Departments, Automotive Service

Facilities, and Refrigerant & Environmental Chamber Manufactures who

are in need of a small, lightweight and rugged instrument that is capable of

detecting and then pinpointing small to large gas leaks in tight spaces such

as those found in refrigeration units and automobile engine compartments.

Tru Pointe

Instruction 0019-9328

Features

• Quickly pinpoints the location of refrigerant leaks

• Patented heated-diode sensor that represents the latest

advancements in sensor technology

• Patented microprocessor-controlled circuitry

• High and low-sensitivity modes, push button selectable

• Automatic zero and background compensation that allows a

leak to be quickly found in contaminated atmospheres with-

out requiring manual sensitivity adjustments

• Flexible probe 14 inches (356 mm) in length for locating

leaks in hard-to-reach areas

• One-handed operation

• No user calibration required

• Long life, DC brushless fan provides positive airﬂow past

sensor resulting in a faster response time

• Batteries included

• One year warranty

• Extended warranty available

Introduction

Tru Pointe

Instruction 0019-9328

Technical Characteristics

Power .......................................... Two ‘D’ Alkaline Batteries

Warm-Up Time ..........................10 seconds

Refrigerants Detected................ All CFC, HCFC and HFC refrigerants

including: R-12, R-22, R-123, R-134a and

blends R-404A, R-408A, R-409A, and

R-410A

Sensor:

Type ......................................... Heated Diode, Dispersive Electron, Plug-In

Life Expectancy*..................... Typically 150 hours or 1 year of normal use

Battery Life ................................ 11 hours min. high sensitivity mode,

20 hours min. low sensitivity mode,

as tested using Duracell Ultra MX1300

alkaline batteries

Response Time ........................... Instantaneous

Sensitivity................................... The instrument will detect a leak of at

least 0.5 oz/year (14 g/yr) as detected by

moving probe tip at 2" (50 mm) per sec-

ond, 0.2" (5 mm) above leak source. A leak

rate of less than 0.1 oz/year (3 g/yr) can

be detected when probe tip is held steady

over leak source for at least 5 seconds.

Sensitivity Adjustment .............. Automatic

Weight ........................................ 1.16 lb (0.53 kg) w/ batteries

Size (excluding probe) ............... 2.12W x 9.5L x 2.4H inches

(53.8 x 241.3 x 61.0 mm)

Probe Length .............................. 14" (356 mm)

Technical Characteristics

* Caution: Exposing the sensor to a steady stream of highly concentrated

refrigerant will severely reduce sensor life or damage the sensor.

Sensor life is directly proportional to the amount of refrigerant

that passes through the sensor.

Tru Pointe

Instruction 0019-9328

Operating Environment:

Position.................................... Any

Temperature ........................... 32 to 122 °F (0 to 50 °C)

Humidity ................................. 10 to 90% RH, non-condensing

Approvals.................................... UL certiﬁed to SAE J1627

CE Mark

Technical Characteristics

Tru Pointe

Instruction 0019-9328

Operation

Battery Installation

1. Remove battery cover by pressing down on the battery cover tab, and

then sliding the cover off the instrument. See Figure 2.

2. Install two ‘D’ alkaline batteries into the battery compartment, observ-

ing the polarity markings that are molded inside of the case.

3. Slide the battery cover back onto the instrument until its tab clicks

into place.

Operation

Figure 2. Battery Installation

Tru Pointe

Instruction 0019-9328

Turning the Instrument ON / OFF

See Figure 3. The instrument is toggled ON and OFF by pressing the

ON/OFF button.

When the instrument is ﬁrst turned ON, observe that the green POWER ON

LED will glow, and that the red LEAK RATE LED ﬂashes rapidly along with

the audible indicator producing a rapid ticking sound or constant tone.

The instrument requires a minimum of 10 seconds to warm up. After

which time both the LEAK RATE LED and audible indicator should slow

down to no more than 1 or 2 ﬂashes/ticks per second.

Note that during the warm-up period, the instrument has zeroed out any

background concentration of refrigerant vapors that may have been present

in the area.

After the instrument is turned ON and allowed to warm up, it is ready

to perform leak testing as described in Section Procedure for Locating a

Refrigerant Leak.

Operation

Figure 3. Indicators and Controls

Green LED:

ON = Instrument turned ON

Blinking = Low battery condition

Amber LED:

ON = High Sensitivity

OFF = Low Sensitivity

Blinking = Sensor Failure

Red LED:

Flash rate increases when the instrument

detects an increased level of refrigerant

Press to toggle instrument ON and OFF

Press to toggle between high and low sensitivity

Tru Pointe

Instruction 0019-9328

Low Battery Indication

A low-battery condition is indicated when the green POWER ON LED begins

to ﬂash. Approximately 20 minutes of operation time remains from the

time this LED ﬁrst begins to ﬂash; after which, the instrument’s operation

will gradually become erratic.

When a low-battery indication occurs, replace the batteries as described

under the previous Section Battery Installation.

Selecting High / Low Sensitivity Mode

When the Tru Pointe is ﬁrst turned ON it defaults to its low-sensitivity

mode.

Place the instrument into its high-sensitivity mode by pressing the HIGH/

LOW SENSITIVITY button until the HIGH SENSITIVITY LED turns ON (HIGH

SENSITIVITY amber LED glows).

Tip: Use the low-sensitivity mode to extend battery and sensor

life. Use the high-sensitivity mode, if necessary, to pinpoint leaks.

Return the instrument to its low-sensitivity mode by pressing the HIGH/

LOW SENSITIVITY button until the HIGH SENSITIVITY LED turns OFF.

Procedure for Locating a Refrigerant Leak

After the instrument is turned ON and allowed to warm up, observe that

both the LEAK RATE LED and the audible indicator should be ﬂashing/tick-

ing at no more than 1 or 2 times a second, indicating that the instrument

is in its idle state and currently not detecting an increasing concentration

of refrigerant.

Important: The instrument’s function is to detect a change

in refrigerant level, and not to make a quantitative measure-

ments. The technique of locating a leak by detecting a change

in level allows an operator to quickly locate the source of a

leak without making manual sensitivity adjustments, or be-

ing concerned about the background refrigerant level in the

surrounding area.

Begin by slowly moving the probe tip toward the area of the suspected leak

source. If surfaces are dirty or wet, wipe them off with a shop towel. Avoid

allowing dirt to clog the probe tip, or allowing water to enter the instrument.

Operation

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