Pur•Chek
™
Pro
Instruction 2100-9001
3
1.5 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 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 relation-
ships. The substitute refrigerant blends can also introduce a fl ammability hazard to the technician and the
ultimate end user of the air conditioning system.
The Bacharach Pur•Chek™ Pro 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 instru-
ment 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 their recovery or use standards.
Sample gas is admitted into the instrument through one of the two supplied sampling hoses and presented to
the sensing device. The instrument provides the user with direct percent by weight concentrations. Note that
the instrument does not consider air to be a contaminant.
The instrument interfaces with the user with an LCD graphic display, status indicator lamps, push button com-
munication switches and an alarm horn. Alarm indications are provided to alert of instrument fault conditions.
Direct percent by weight concentrations of the sample refrigerant is provided on the display as well as 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 excellent knowledge of refrigerant type
and purity as well as protection against refrigerant contamination and potential fl ammability.