yellow jacket 68940 User manual

HVAC/R REFRIGERANT ANALYZER
OPERATION MANUAL
Analyzer Part Number: 68940

Table of Contents
FOR YOUR SAFETY 3
ANALYZER WARNINGS 3
GENERAL CAUTIONS 4
WELCOME 5
1 INTRODUCTION AND OVERVIEW 6
1.1 GENERAL 6
1.2 FEATURES 7
1.3 COMPONENTS 8
68940 Base Unit 8
Low Side Vapor Sample Hose 8
High Side Liquid Sample Hose 9
AC Power Adapter 9
Control Panel 10
Back Panel Connections 10
Hard Shell Stoarage/Carrying Case 11
2 YELLOW JACKET 68940 OPERATION 12
2.1 FIRST USE 12
2.2 TURNING ON THE UNIT 12
2.3 CALIBRATION 13
2.4 VAPOR SAMPLING 14
2.5 LIQUID SAMPLING 15
2.6 VIEWING THE TEST RESULTS 15
2.7 CONTAMINATED BLEND REFRIGERANTS 16
2.8 PURE BLEND REFRIGERANTS 16
2.9 PURE BLENDS WITH INCORRECT COMPONENT RATIOS 17
2.10 MEASURING AIR 17
2.11 PRINTING THE TEST RESULTS & CHANNEL DATA 18
2.12 CHANNEL DATA MODELLING 19
3 MAINTENANCE & TROUBLESHOOTING 20
3.1 SETTING THE LCD CONTRAST 20
3.2 CHANGING THE WHITE PLASTIC SAMPLE FILTER 20
3.3 REPLACING THE BRASS SAMPLE HOSE RESTRICTOR 21
3.4 CHANGING THE PRINTER PAPER 21
3.5 SOFTWARE UPDATE 22
3.6 LOW BATTERY WARNING 23
3.7 AIR SENSOR LOW 23
3.8 ERROR MESSAGE 23
APPENDICES 24
3.9 SPARE PARTS LIST 24
3.10 APPENDIX B –SPECIFICATIONS 24
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For Your Safety:
PLEASE READ THIS MANUAL IN ITS ENTIRETY BEFORE ATTEMPTING
INSTALLATION OR OPERATION! Attempting to operate the
YELLOW JACKET 68940 without fully understanding its features and
functions may result in unsafe conditions.
Analyzer Warnings
•REFRIGERANT BLEND WARNING: The HVAC industry is ever evolving new
refrigerants. Many of these new blends can be identified and/or profiled using the
YELLOW JACKET 68940.
•SAMPLE FILTER WARNING: Replace the sample filter of the instrument AS SOON AS
RED SPOTS OR DISCOLORATION BEGIN TO APPEAR ON THE OUTSIDE
DIAMETER OF THE WHITE ELEMENT. Failure to properly maintain and replace the
sample filter will result in severe damage or inaccurate results.
•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 CHARGING WARNING: When charging the internal battery with the
supplied power supply, the power supply may become warm. If the power supply
becomes warm, unplug the immediately! When charging multiple analyzers, allow the
charger to cool between each battery.
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General Cautions
•ALWAYS wear eye and skin protection when working with refrigerants. Escaping
refrigerant vapors will present a freezing danger.
•ALWAYS turn the compressor OFF before connecting the instrument to an air
conditioning system.
•ALWAYS inspect the sample hose before each use. Replace the hose if it appears
cracked, frayed, obstructed or fouled with oil.
•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 Analyzer on a flat and sturdy surface.
•To reduce the risk of electrical shock, do not disassemble the instrument; do not use the
instrument in wet or damp areas.
•Some systems may contain hydrocarbons or flammable refrigerants. This analyzer is
designed with sealed heat sources and without sparking components. Ensure adequate
ventilation and always take proper precautions when working with refrigerants.
•DO NOT breathe refrigerant and lubricant vapor or mist. Exposure may irritate eyes,
nose, and throat. If accidental system discharge occurs, immediately ventilate the work
area.
•DO NOT utilize any hose assembly 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 which is 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 ventilation ports of the
instrument during use.
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WELCOME
Thank you for purchasing the YELLOW JACKET 68940
Refrigerant Identifier.
The YELLOW JACKET 68940 Refrigerant Identifier is the most advanced refrigerant analyzer ever
designed for determining the purityof common gaseous refrigerants. It has many features to offer the
user,whichwillbedescribedinthismanual. Werecommendthatallpersonnel whousethisinstrument
read this manual to become more familiar with its proper operation.
For further information regarding the application, operation or spare parts, please contact the Ritchie
Engineering Co., Inc. Customer Service Department. If you have questions or comments, we would
like to hear from you.
Ritchie Engineering –YELLOW JACKET Products Division
10950 Hampshire Avenue South
Bloomington, MN 55438, USA
Tel: [phone]
Contact us: [email protected]
Visit us: www.yellowjacket.com
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1INTRODUCTION AND OVERVIEW
1.1 General
Contamination and mislabelling of refrigerants either in storage cylinders or air conditioning systems
can lead to component corrosion, elevated head pressures and system failures when utilized 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 utilize temperature-pressure relations.
The development of various substitute refrigerants further complicates the ability of a technician to
identify refrigerant purity based upon 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 YELLOW JACKET 68940 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 and
the user must determine acceptable levels of purity based on their recovery or use standards.
The instrument is supplied complete with a ¼” Flare Vapor Sampling Hose, a High Pressure Liquid
Sample Trap Assembly, a 100-240 VAC power transformer, built in Lithium Iron Phosphate battery,
thermal printer, and all required plumbing housed within a rugged, portable, storage case.
Testing occurs when sample gas is admitted into the instrument through the supplied sampling hose
configurations and presented to the sensing device. The instrument provides the user with direct
percent by weight concentrations.
The instrument interfaces with the user via a LCD graphic display, status indicator LED’s, and push
button communication switches. Direct percent by weight concentrations of the sampled refrigerant
are provided on the display as well as user directions and prompts. An on-board printer is provided
to print an on-the-spot analysis report.
The YELLOW JACKET 68940 Refrigerant Analyzer Refrigerant Analyzer provides the refrigerant
technician with excellent knowledge of refrigerant type and purity as well as protection against
refrigerant contamination and potential flammability.
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1.2 Features
The YELLOW JACKET 68940 Refrigerant Analyzer is the MOST advanced portable instrument ever
manufactured for determining the purity of gaseous refrigerants for the HVAC-R market.
Features Include:
•Advanced ergonomic design
•Rugged rubberized hand grips
•Large graphic display with on-screen instructions
•Fast test time
•Built in printer for instant analysis report
•Built in oxygen sensor to detect presence of Air
•Vapor or Liquid Sampling ability
•Internal, rechargeable Lithium Iron Phosphate battery for cordless operation in any
location
•Hard shell carry/storage case
•USB Port for Remote Software Updates
1.3
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YELLOW JACKET 68940 Components
Base Unit
The YELLOW JACKET 68940 Refrigerant Analyzer base unit houses the Graphic Display, Infrared
Bench, Electrical Connections, built in Lithium Iron Phosphate Battery and Printer Module. These
components require no maintenance; therefore, there are no serviceable components internal
to the instrument. Disassembly will void the warranty.
m
Low Side Vapor Sample Hose
The 6.5 foot (2 meter) Low Side Vapor Sample Hose configuration is constructed of a polyurethane
tube. A Brass Sample Hose 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 ¼” SAE female
flare coupling nut on the service end.
NOTE: The analyzer will indicate “Non-Condensable” or “Unknown Refrigerant” if the analyzer
does not receive a good sample due to obstructedflow or lack of flow. Ifthis occurs the Brass Sample
Hose Restrictor may need to be replaced.
Analyzer End
Service End
(1/4 SAE Flare Nut)
Print Door
Control Panel
Sample Filter
Air Intake Port
Brass Sample
Hose Restrictor
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A/C Power Cord
High Side Liquid Sample Hose
The 6.5 foot (2 meter) High Side Sample Hose configuration is constructed of a polyurethane tube
with an oil reservoir. A Brass Sample Hose Restrictor acts to transform Liquid refrigerant to Vapor
at the sample connection point while the High Pressure Liquid Sample Trap Assembly collects oil
and provides a means of expulsion after the test is complete. The syringe is provided with a magnet
for attaching it to the tank, an instrument inlet port mating connector on one end and a ¼” SAE
female flare coupling nut on the service end. The maximum pressure is 500 psig.
NOTE: The analyzer will indicate “Non-Condensable” or “Unknown Refrigerant” if the analyzer
does not receive a good sample due to obstructedflow or lack of flow. If this occursthe Brass Sample
Hose Restrictor may need to be replaced.
AC Power Adapter
The YELLOW JACKET 68940 is powered via a Lithium Iron Phosphate battery. You can also power
the unit via the 90-264 VAC, 50-60 Hz power transformer. This transformer is included with each
unit and converts a standard 100-240VAC 50/60Hz wall outlet to 12VDC, 2.0A, which powers the
device. This AC Power Adapter will also charge the battery when connected to the analyzer.
NOTE: Use of any other power source may cause damage to the unit and void the warranty.
Service End
(1/4 SAE Flare Nut)
Analyzer End
High Pressure
Liquid Sample Trap
Assembly
A/C Power Converter
Brass Sample
Hose Restrictor
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