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Digital Refrigerant System Analyzer
INSTRUCTION MANUAL
ENGLISH
LOW START PRS
Digital Refrigerant Analyzer
AK940
VAPOR SAT
°C
TIME
°F
T-LOW
SUPERHEAT
ZERO
VAC
Visit us at www.TestEquipmentDepot.com
MAXMIN
Psi
kPa
Bar
MPa
HIGH END PRS
°C
°F
LIQUID SAT
R
°C
°F
T-HIGH
P
T
SUBCOOL
UNITS
MIN MAX
PRS TEST
REF
REF
AK940
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
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Table of Contents
Related Manuals for UEi AK940
Summary of Contents for UEi AK940
- Page 1 AK940 Digital Refrigerant System Analyzer 99 Washington Street INSTRUCTION MANUAL Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 ENGLISH Visit us at www.TestEquipmentDepot.com MAXMIN LOW START PRS HIGH END PRS °C Digital Refrigerant Analyzer AK940 °F VAPOR SAT LIQUID SAT °C...
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Page 2: Table Of Contents
Vapor/Liquid Saturation Temperatures ..........17 T-Low and T-High/∆T (Delta Temperature) ........17 - 18 Recovering Refrigerant; Evacuating a System; Adding Refrigerant to a System ............18 Connecting AK940 ................19 Battery Replacement ................19 DISPOSAL ......................20 CLEANING ....................... 20 STORAGE ......................20... -
Page 3: Features
FEATURES • Low and High Side Pressure • Vapor and Liquid Saturation • High and Low Side Temperatures • Superheat • Subcool • Pressure Differential • Tempearture Differential • Digital Manifold w/ 4 valves • Max/Min • 12 Parameter Backlit display •... -
Page 4: Quick Start Instructions
• Review and follow all Important Safety Warnings (see page 6). • Connect the AK940 to the system to be tested. • You are now ready to test. NOTE: See diagram (page 19) – Connecting AK940 in Operating Instructions. -
Page 5: Important Safety Warnings
IMPORTANT SAFETY WARNINGS WARNING Read entire Safety Notes section regarding potential hazard and proper instructions before using this meter. In this manual the word “WARNING” is used to indicate conditions or actions that may pose physical hazards to the user. The word “CAUTION” is used to indicate conditions or actions that may damage this instrument. - Page 6 • Do not utilize any hose other than those supplied with the analyzer (or supplied by UEi). The use of other hose types will introduce errors into the refrigerant analysis and instrument calibration. • Never obstruct the air intake, sample exhaust or case vent ports of the analyzer during use.
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Page 7: Symbols
Degrees Fahrenheit Degrees Celsius Polarity Warning or Caution Eye Protection Recommended High Voltage Risk OVERVIEW MAXMIN LOW START PRS HIGH END PRS °C Digital Refrigerant Analyzer AK940 °F LIQUID SAT VAPOR SAT °C °C B-10 TIME °F °F T-HIGH T-LOW... - Page 8 WARNING! DO NOT apply pressure above 600 psi. Doing so may result in injury and will void the warranty. A. Hanger Hook: with 360˚ swivel. B. Display: 12 Parameter screen: 1. Low Side Pressure value. 2. Vapor Saturation temperature. 3. Refrigerant. 4.
- Page 9 8. Liquid Saturation temperature. 9. Time: (HH:MM) Test Duration. Time starts counting as soon as Analyzer is powered on. Time (Test Duration) resets to zero when Pressure Test button is pressed. Time resets to zero when Pressure Test mode is exited. 10.
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Page 10: Operating Instructions
1. T-High port. 2. T-Low port. N. Maximum pressure Warning label OPERATING INSTRUCTIONS Min/Max Button: MAXMIN LOW START PRS HIGH END PRS °C Digital Refrigerant Analyzer AK940 °F VAPOR SAT LIQUID SAT MIN MAX °C °C TIME °F °F T-LOW... -
Page 11: Zero Pressure Button
• Press MIN/MAX button to activate MAX/MIN on display. • Press to toggle between MAX value and MIN value displayed. • Press and hold to return to live readings. Zero Pressure Button HIGH Digital Refrigerant Analyzer AK940 ºF VAPOR SAT LIQUID SAT ZERO UNITS... -
Page 12: Refrigerant Selection Button
• To select another refrigerant other than the one displayed. • Press the REF button to scroll slowly though available refrigerants. Press and hold to scroll quickly through available refrigerants. HIGH Digital Refrigerant Analyzer AK940 ºF VAPOR SAT LIQUID SAT UNITS... -
Page 13: Unit Selection Button
• Press the UNITS button repeatedly to scroll the Unit options. • Scrolling will display Scale in Fahrenheit with unit, then Scale in Celsius with unit. MAXMIN LOW START PRS HIGH END PRS °C Digital Refrigerant Analyzer AK940 °F VAPOR SAT LIQUID SAT °C °C TIME °F... -
Page 14: Pressure Test/∆P (Delta Pressure) Button
Pressure Test/∆P (Delta Pressure) Button • NOTE: see diagram (page 19) – Connecting AK940 in Operating Instructions. • Connect the analyzer to the system. • Select appropriate refrigerant. START Digital Refrigerant Analyzer AK940 ºF VAPOR SAT LIQUID SAT PRS TEST... -
Page 15: Superheat And Subcool
• NOTE: If subcooling or superheat is calculated to be negative, the AK940 displays “- - - - “ to indicate a problem in the same way as a UEi DMM displays “OL’ when there is an over range. The negative value indicates a problem in the cooling... -
Page 16: Vapor/Liquid Saturation Temperatures
UNITS MIN MAX PRS TEST ZERO • NOTE: see diagram (page 19) – Connecting AK940 in Operating Instructions. • Connect the analyzer to the system. • Select appropriate refrigerant. • Displays Vapor Saturation (VSAT) and Liquid Saturation (LSAT) temperatures calculated from the pressures measured and the refrigerant selected. -
Page 17: Recovering Refrigerant; Evacuating A System; Adding Refrigerant To A System
• Display will not show temperatures if sensors are NOT connected to the temperature sensor clamp ports. Recovering Refrigerant; Evacuating a System; Adding Refrigerant to a System • NOTE: see diagram (page 19) – Connecting AK940 in Operating Instructions. • Connect the analyzer to the system. • Select appropriate refrigerant. -
Page 18: Connecting Ak940
Connecting AK940 LOW START PRS InHg HIGH END PRS Digital Refrigerant Analyzer °C AK940 °F VAPOR SAT LIQUID SAT °C °C TIME °F °F T-LOW T-HIGH SUPERHEAT SUBCOOL UNITS MIN MAX ZERO PRS TEST WARNING! DO NOT apply pressure above 600 p Doing so may result in injury and will void the warranty. -
Page 19: Disposal
Any implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the express warranty. UEi shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses or economic loss.
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