Bacharach PUR-CHEK PRO Instruction Manual

Product Leadership •Training •Service • Reliability
Operation and Maintenance
Instruction Manual 2100-9001
Rev. 2 – October 2011

Pur•Chek™ Pro Operation and Maintenance Instruction Manual
ii P/N 2100-9001 Rev 2
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 warranty set forth in paragraph 1 does not apply to parts the Operating Instructions designate as
having a limited shelf-life or as being expended in normal use (e.g., filters).
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.
Register Your Warranty by Visiting
www.mybacharach.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.
Copyright © 2011, Bacharach, Inc., all rights reserved.
BACHARACH® is a registered trademark of Bacharach, Inc. All other trademarks, trade names, service
marks and logos referenced herein belong to their respective owners.

Operation and Maintenance Instruction Manual Pur•Chek™ Pro
P/N 2100-9001 Rev 2 iii
Table of Contents
1. Introduction......................................................................................................................................... 1
1.1. How To Use This Manual ....................................................................................................... 1
1.2. Conventions Used In This Manual ......................................................................................... 1
1.3. Analyzer-Specific Warnings ................................................................................................... 1
1.4. General Warnings And Cautions............................................................................................ 2
1.5. Features And Capabilities ...................................................................................................... 2
1.6. Kit Contents And Reorder Part Numbers ............................................................................... 3
1.7. Functional Overview............................................................................................................... 3
2. Specifications ..................................................................................................................................... 4
3. Components ....................................................................................................................................... 5
3.1. Base Unit ................................................................................................................................ 5
3.2. Low Side Vapor Sample Hose ............................................................................................... 5
3.3. High Side Liquid Sample Hose .............................................................................................. 5
3.4. Control Panel.......................................................................................................................... 6
3.5. AC Power Adapter.................................................................................................................. 6
3.6. Back Panel Connections ........................................................................................................ 7
3.7. Hard Shell Storage/Carrying Case......................................................................................... 7
4. Operation............................................................................................................................................ 8
4.1. Battery Installation.................................................................................................................. 8
4.2. Turning On The Unit............................................................................................................... 8
4.3. Calibration .............................................................................................................................. 9
4.4. Vapor Sampling.................................................................................................................... 10
4.5. Liquid Sampling.................................................................................................................... 10
4.6. Viewing The Test Results..................................................................................................... 10
4.7. Contaminated Blend Refrigerants ........................................................................................ 11
4.8. Pure Blend Refrigerants ....................................................................................................... 11
4.9. Blends With Incorrect Component Ratios ............................................................................ 11
4.10. Printing The Test Results ..................................................................................................... 12
5. Maintenance And Troubleshooting .................................................................................................. 13
5.1. Setting The Lcd Contrast...................................................................................................... 13
5.2. Changing The White Plastic Sample Filter........................................................................... 13
5.3. Replacing The Sample Hose................................................................................................ 13
5.4. Changing The Printer Paper ................................................................................................ 14
5.5. Software Updates................................................................................................................. 15
5.6. Error Messages .................................................................................................................... 15
6. Service Centers................................................................................................................................ 15

Pur•Chek™ Pro Operation and Maintenance Instruction Manual
iv P/N 2100-9001 Rev 2
List of Figures
Figure 3-1. Base Unit Showing Key Components ....................................................................................... 5
Figure 3-2. Low Side Vapor Sample Hose................................................................................................... 5
Figure 3-3. High Side Sample Hose ............................................................................................................ 6
Figure 3-4. Control Panel Showing Key Components ................................................................................. 6
Figure 3-5. Back Panel Connectors ............................................................................................................. 7
Figure 3-6. Hard Shell Storage/Carrying Case ............................................................................................ 7
Figure 4-1. Location of Battery Compartment Screws................................................................................. 8
Figure 4-2. Sample Screens Showing Start-up Sequence .......................................................................... 9
Figure 4-3. Sample Screens Showing Calibration Testing .......................................................................... 9
Figure 4-4. Screens Showing Sample Test Results .................................................................................. 10
Figure 4-5. Test Results for Contaminated Blend Refrigerants ................................................................. 11
Figure 4-6. Test Results for Pure Blend Refrigerants................................................................................ 11
Figure 4-7. Test Results for Blends with Incorrect Component Ratios ...................................................... 12
Figure 4-8. Samples of Printed Test Results ............................................................................................. 12
Figure 5-1. Sample Screens Used in Setting LCD Contrast...................................................................... 13
Figure 5-2. Screens Used in Changing Printer Paper ............................................................................... 14
Figure 5-3. How to Change Printer Paper.................................................................................................. 15
List of Tables
Table 1-1. Pur•ChekPro Kit Part Number ............................................................................................... 3
Table 1-2. Pur•ChekPro Kit Replacement Part Numbers ....................................................................... 3
Table 2-1. Specifications............................................................................................................................. 4

Operation and Maintenance Instruction Manual Pur•Chek™ Pro
P/N 2100-9001 Rev 2 1
1. Introduction
1.1. How to Use This Manual
This manual provides important information on how to operate and maintain Bacharach’s Pur•Chek™Pro
HVAC Diagnostic Refrigerant Analyzer. To assure operator safety and proper use of the Pur•Chek™Pro,
please read, understand, and follow the contents of this manual.
1.2. Conventions Used in This Manual
When used in this manual or as labeled on the Pur•Chek™ Pro, the following hazard symbols and/or
associated words are defined as follows.
WARNING: This symbol and/or the use of the word WARNING indicates a potential hazard
associated with the use of this equipment. It calls attention to a procedure, practice,
condition, or the like, which if not correctly performed or adhered to, could result in death or
serious injury.
WARNING: This symbol and/or the use of the word WARNING indicates a potential hazard
from electrical shock. It calls attention to a procedure, practice, condition, or the like, which if
not correctly performed or adhered to, could result in death or serious injury.
CAUTION: This symbol and/or the use of the word CAUTION indicates a potential hazard
associated with the use of this equipment. It calls attention to a procedure, practice,
condition, or the like, which if not correctly performed or adhered to, could result in minor or
moderate injury.
IMPORTANT: The use of the word IMPORTANT in this manual calls attention to a
procedure, practice, or condition which if not correctly performed or adhered to, could result
in incorrect performance of or damage to the equipment and may void the warranty.
NOTE: The use of the word NOTE in this manual is used to emphasize a procedure,
practice, or condition.
1.3. Analyzer-Specific Warnings
Refrigerant Blend Warning: The HVAC industry is continually introducing new refrigerants.
Many of these new blends can be profiled using the Pur•Chek™ Pro.
Sample Filter Warning: Replace the sample filter of the instrument AS SOON AS RED
SPOTS OR DISCOLORATION BEGINS TO APPEAR ON THE OUTSIDE DIAMETER OF
THE WHITE ELEMENT. Failure to properly maintain and replace the sample filter will result
in severe damage.
Sample Input Warning:
The instrument includes sampling options. One for High Side
Liquid sampling and one for Low Side Vapor Sampling. Failure to use the correct hose
configuration on the proper sample port may result in incorrect readings and/or damage to
the instrument. DO NOT attempt to introduce liquid or samples heavily laden with oil into the
low side sampling hose configuration.
Damage caused to the instrument due to the use of the wrong hose configuration on the
wrong port will void the warranty.
Battery Charger Warning: When charging the optional battery with the charger, the
charger will become warm. If the charger becomes hot, unplug the charger immediately!
When charging multiple battery packs, allow the charger to cool between each battery.

Pur•Chek™ Pro Operation and Maintenance Instruction Manual
2 P/N 2100-9001 Rev 2
1.4. General Warnings and Cautions
ALWAYS inspect the sample hose before each use. Replace the hose if it appears cracked,
frayed, obstructed or fouled with oil.
ALWAYS turn the compressor off before connecting the instrument to an air conditioning
system.
ALWAYS wear eye and skin protection when working with refrigerants. Escaping refrigerant
vapors will present a freezing danger.
To reduce the risk of electrical shock, DO NOT disassemble the instrument; do not use the
instrument in wet or damp areas.
DO NOT direct refrigerant vapors venting from hoses towards the skin.
DO NOT disassemble the instrument. There are no serviceable components internal to the
instrument and disassembly will void the warranty.
ALWAYS place the Identifier on a flat and sturdy surface.
DO NOT utilize any other hose other than those supplied with the instrument. The use of
other hose types will introduce errors into the refrigerant analysis and instrument calibration.
ALWAYS verify that the refrigerant to be tested from the Low Side does not contain or will
not emit heavy loads of oil or liquid.
NEVER admit any sample into the instrument at pressures in excess of 500 psig.
NEVER obstruct the air intake, sample exhaust, or case vent ports of the instrument during
use.
DO NOT expose unit or external components to rain or moisture. Protect the unit by
keeping it in the storage case when not in use.
1.5. Features and Capabilities
The Pur•Chek™ Pro HVAC Diagnostic Refrigerant Analyzer is the most advanced portable instrument
ever manufactured for determining the purity of gaseous refrigerants for the HVAC-R market. Features of
the Pur•Chek™ Pro include the following:
•Identification of more than 12 refrigerants with a single IR detector
•Advanced ergonomic design
•Rugged rubberized hand grips
•Large graphic display with on-screen instructions
•Fast test time
•Built-in printer for instant analysis report
•Vapor or liquid sampling ability
•Internal, rechargeable battery option for cordless operation in any location
•Hard shell carry/storage case
•Remote software update port.

Operation and Maintenance Instruction Manual Pur•Chek™ Pro
P/N 2100-9001 Rev 2 3
1.6. Kit Contents and Reorder Part Numbers
The Pur•ChekPro kit contains the individual parts listed below.
•Pur•Chek™ Pro (available only through kit 2100-8003)
•Hard shell storage/carrying case
•1/4” flare vapor sampling hose
•1/4” flare liquid sampling assembly
•AC adapter
•Printer paper (1 roll)
•Instruction manual
•Spare sample hose filter
The Pur•ChekPro kit is contained in a hard shell storage/carrying case. Note that some kit components
are available for individual reorders.
Table 1-1. Pur•ChekPro Kit Part Number
Part Number Description
2100-8003 Pur•ChekPro Kit
Table 1-2. Pur•ChekPro Kit Replacement Part Numbers
Part Number Contents of Pur•ChekPro Kit (P/N: 2100-8003)
N/A Pur•Chek™ Pro (available only through kit 2100-8003)
N/A Hard shell storage/carrying case (available only through kit 2100-8003)
2100-9001 Instruction manual
2100-0003 Printer paper (1 roll)
2100-0004 AC power adapter
2100-0006 White plastic sample filter
2100-0007 Rechargeable battery kit with battery and charger (optional)
2100-0008 1/4” flare low-pressure vapor sampling hose
2100-0009 1/4” flare high-pressure liquid sampling hose assembly
2100-0010 Spare low pressure sample hose filter/restrictor
2100-0012 Spare rechargeable battery (optional)
1.7. Functional Overview
Contamination of refrigerants either in storage cylinders or air conditioning systems can lead to
component corrosion, elevated head pressures, and system failures when used by unsuspecting
technicians. The ability of the technician to determine refrigerant type and purity is severely hampered by
the presence of air when attempting to use temperature-pressure relationships. The development of
various substitute refrigerants further complicates the ability of a technician to identify refrigerant purity
based on temperature-pressure relationships. The substitute refrigerant blends can also introduce a
flammability hazard to the technician and the ultimate end user of the air conditioning system.
The Bacharach Pur•Chek™ Pro HVAC diagnostic refrigerant analyzer provides a fast, easy, and accurate
means to determine refrigerant purity in refrigerant storage cylinders or directly in air conditioning
systems. The instrument utilizes non-dispersive infrared (NDIR) technology to determine the weight
concentrations of multiple refrigerant types. Refrigerant purity is displayed on the LCD screen. The user
must determine acceptable levels of purity based on his use or recovery standards.

Pur•Chek™ Pro Operation and Maintenance Instruction Manual
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Sample gas is admitted into the instrument through one of the two supplied sampling hose configurations
and presented to the sensing device. The instrument provides the user with direct percent-by-weight
concentrations.
NOTE: The instrument does not consider air to be a contaminant.
The instrument interface to the user consists of an LCD graphic display, status indicator lamps, push-
button communication switches, and an alarm horn. Alarm indicators provide alerts of instrument fault
conditions. Direct percent-by-weight concentrations of the sample refrigerant are provided on the display,
which also provides user directions and prompts. A built-in printer is provided to print an on-the-spot
analysis report.
The Bacharach Pur•Chek™ Pro provides the refrigerant technician with:
•refrigerant type
•refrigerant purity
•refrigerant contamination information
•potential flammability information.
2. Specifications
Table 2-1. Specifications
Category Description
Sample Parameters Vapor only, oil-free, 500 psig maximum
Identified Refrigerants R12, R408A, R409A, R417A, R421A, R421B, R422A, R422B, R422C,
R427A, R600a (Due to similar formulas, R417A and R421A may be identified as either R417A or R421A)
Identified and Analyzed
Refrigerants R134a, R22, R404A, R407C, R410A
Sensor Technology Non-Dispersive Infrared (NDIR)
Refrigerant Sample Size 0.3 ounces (8.5 grams) per sample
Power
External Power Supply 100-240 V~, 50/60 Hz, 0.6 A
Optional External Battery Charger 100-240 V~, 50/60 Hz, 1.95 A
DC Supply Requirements 9-15 VDC, 2 Amps minimum
Environmental
Conditions
Humidity: 0 to 95% RH non-condensing.
Protect the unit by keeping it in the storage case when not in use.
Do not expose unit or external components to rain or moisture.
Operational
Temperature 50-110°F

Operation and Maintenance Instruction Manual Pur•Chek™ Pro
P/N 2100-9001 Rev 2 5
3. Components
3.1. Base Unit
The Pur•Chek™ Pro base unit (shown in Figure 3-1) houses the graphic display, infrared bench, electrical
connections, and printer module. These components require no maintenance.
IMPORTANT:There are no serviceable components internal to
the instrument, and
disassembly will void the warranty.
Figure 3-1. Base Unit Showing Key Components
3.2. Low Side Vapor Sample Hose
The 8.5 foot (2.5 meter) low side vapor sample hose configuration is constructed of a polyurethane tube.
See Figure 3-2. A brass flow restrictor acts to reduce pressure at the sample connection point and
reduce the introduction of harmful oil into the machine. The maximum inlet pressure is 500 psig. The hose
is provided with an instrument inlet port mating connector on one end and a 1/4” SAE female flare
coupling nut on the service end.
Figure 3-2. Low Side Vapor Sample Hose
3.3. High Side Liquid Sample Hose
The 8.5 foot (2.5 meter) high side sample hose configuration is constructed of a polyurethane tube with
an oil reservoir. A brass flow restrictor acts to transform liquid refrigerant to vapor at the sample
connection point while the oil trap syringe collects oil and provides a means of expulsion after the test is
complete. The maximum pressure is 500 psig. The syringe is provided with a magnet for attaching it to
the tank. It also is provided with an instrument inlet port mating connector on one end and a 1/4″SAE
female flare coupling nut on the service end. Refer to Figure 3-3.
Analyzer End
Service End

Pur•Chek™ Pro Operation and Maintenance Instruction Manual
6 P/N 2100-9001 Rev 2
Figure 3-3. High Side Sample Hose Configuration
3.4. Control Panel
The control panel serves as the main user interface. The control panel features three soft key buttons that
change their function as the instrument changes modes. The current function for each button is displayed
by the soft key label at the bottom of the graphic display. Red and green LEDs at the top of the control
panel are used for visual status indications. Refer to Figure 3-4.
Figure 3-4. Control Panel Showing Key Components
3.5. AC Power Adapter
The Pur•Chek™ Pro is powered via a 110/240 VAC, 50/60 Hz power transformer. This transformer is
included with each unit and converts a standard 110/240 VAC, 50/60 Hz wall outlet to 12 VDC to power
the device. An optional internal and rechargeable battery kit is available separately.
NOTE:Use of any other power source may cause damage to the unit and void the
warranty.
Figure 3-5. AC Power Adapter
Service End
(1/4 SAE Flare Nut)
Analyzer End
Graphic
Display