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Table of Contents Safety Precautions .......................................................................... 2 Unit Description ............................................................................... 4 Hardware Descriptions .................................................................... 7 Operating Procedures ................................................................... 10 Error Codes ................................................................................... 18 Maintenance ..
Safety Precautions WARNING : To prevent personal injury: • Study, understand, and follow all warnings in this manual before operating this unit. If the operator cannot read these instructions, operating instructions and safety precautions must be read and discussed in the operator’s native language. — Si el operador no puede leer las instrucciones, las instrucciones de operación y las precauciones de seguridad deberán leerse y comentarse en el idioma nativo del operador.
Safety Precautions Caution : To prevent equipment damage, • Air Detection Warm-Up: For best accuracy in air detection only, allow the instrument an additional 5-minute warm-up period after completion of the warm-up and calibration modes. Allow the instrument to sit undisturbed for 5 minutes following the completion of the initial calibration mode.
Unit Description Contamination of refrigerants either in storage cylinders or vehicle 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.
Unit Description The instrument provides the option to purge sample refrigerant sources of air contamination down to levels set by the user. Air purging is completely automatic and requires no intervention by the user other than telling the instrument to begin the purging process.
Unit Description Air-Radicator Purging When a refrigerant source has been determined to be pure (at least 98% by weight of either R-12 or R-134a), the instrument automatically offers the air purging feature to the user, should there be any air contamination. Continuous monitoring of the venting gas stream to determine exact air concentrations controls the purging feature. Purging limits can be set by the user between 2%–9% by weight to tailor the purge to specific needs.
Hardware Descriptions The Identifier provides the user with a complete tool to identify refrigerant mixtures, and rid the mixtures of air contamination, all housed in a portable, rugged carrying case. Housing The instrument is housed in a rugged, hand-held, injection-molded nylon case. The case houses the sensing devices, the plumbing system, and the electronics of the instrument. Power Cord A nine-foot (2.
Hardware Descriptions Purge Vent Port The purge vent port emits a mixture of refrigerant vapor and air during purging procedures. The port is supplied with a protective cap that must be replaced with the purge vent hose during purging operations. The cap must remain installed on the port during refrigerant identification procedures to avoid excessive losses of refrigerant.
Hardware Descriptions Purge Vent Hose The purge vent hose is a 6-foot length of neoprene tubing with a connector on one end to mate with the purge vent port. The hose is used to direct venting refrigerant vapor and air contamination away from the instrument and the ambient air inlet port. This process ensures no calibration errors or faults occur during purging procedures.
Operating Procedures Pre-Operation Procedure 1. Inspect the sample filter for signs of red spots or discoloration anywhere on the white outside diameter of the filter element. If any red spots or discoloration are noticed, REPLACE THE FILTER BEFORE USING THE INSTRUMENT. CAUTION When red spots or discoloration begin to appear on the white outside diameter of the filter element, REPLACE THE FILTER.
Operating Procedures Refrigerant Identification Operational Procedure 1. Plug the power cord of the instrument into a suitable receptacle. Various parameters of the instrument are displayed and the warm-up period begins. 2. The warm-up period lasts for 90 seconds. The display reads SYSTEM WARMINGCHECK FILTER, which is a reminder to inspect the instrument's sample filter. 3.
Operating Procedures c. When the correct setting of local elevation has been achieved, allow the instrument to sit for 20 seconds while not pushing either of the buttons. The instrument automatically returns to the warm-up period, and the elevation setting is stored in memory. 5. After completion of the warm-up period, the instrument self-calibrates. Ambient air is drawn in through the air intake port and is presented to the sensing device for calibration. The calibration period runs for 20 seconds. 6.
Operating Procedures 8. The instrument presents the results of the analysis as outlined below: PASS R-134a: If the instrument has detected 98% by weight or greater concentration of R-134a, the green PASS LED illuminates and the weight concentrations of R-12, R134a, R-22, hydrocarbons, and air are displayed. The display then prompts the user to press “A” to print, or press “B” to continue. See Step 9.
Operating Procedures 9. You may now print the results of the analysis. Connect a user-supplied cable and parallel printer to the printer port of the instrument. Turn on the printer, and press the “A” button of the instrument. The results of the last analysis are downloaded to the printer. Note: Should a printer not be readily available, the instrument stores the LAST result only for printout during the next warm-up period, as described in Step 3. If no printout is desired, press the “B” button.
Operating Procedures 3. The instrument reads REMOVE PURGE CAP, CON. HOSE, PRS A. This message instructs you to remove the cap installed on the purge vent port, and replace it with the purge vent hose. Direct the free end of the hose away from the instrument so escaping gasses are not directed back towards the instrument. When the hose is securely connected, press the “A” button to continue. 4. The instrument reads NOW AIR IS XX.X% PURGING TO XX%.
Operating Procedures Time Out: To conserve refrigerant during a potentially long purging procedure, the instrument automatically halts the operation after a time-out of 1-1/2 hours. You are asked if the procedure is to continue. To restart the procedure, press the “A” button; press the “B” button to end the session and return to calibration. Note that purge duration in excess of 1-1/2 hours is unusual (assuming a 50 lb.
Operating Procedures Post-Operational Procedure 1. Unplug the instrument power cord. 2. Disconnect the sample hose from the inlet port of the instrument. Inspect the hose for signs of wear, such as cracking, fraying, or kinks. Verify the hose is not obstructed, and that no oil is present inside the hose. Store the inspected hose in the storage case. If the hose shows signs of wear, obstruction, or oil, it MUST BE REPLACED BEFORE USING THE INSTRUMENT AGAIN. 3.
Error Codes Error Codes and Corrective Actions The instrument is supplied with self-diagnostic software to guide you through problems that may occur in the field. The software supples three codes that direct you toward corrective measures. Should the corrective measures not clear the problem, contact Technical Services for assistance. ERR.1 Signifies unstable readings due to inconsistent sample supply or interference from strong electrical fields. Corrective Action for Error 1: 1.
Error Codes ERR.2 Signifies internal sensor failure due to temperature extremes. Corrective Action for Error 2: 1. Allow the unit to stabilize at room temperature for at least 30 minutes. 2. To clear the error code, unplug the instrument. The error code will be cleared at the next power-up. ERR.3 Signifies a calibration fault. Corrective Action for Error 3: 1. Verify the purge vent hose is not directed towards the instrument, and the air intake port and the sample exhaust ports are not obstructed. 2.
Maintenance Sample Filter Replacement Inspection Frequency: Inspect the sample filter before and after each use of the instrument. What to Look For: When inspecting the sample filter, look around the entire outside diameter of the white filter element located inside of the plastic housing. Look for red spots or the beginnings of discoloration on the white outside diameter of the element.
Maintenance Sample Hose Inspection and Cleaning Inspection Frequency: Inspect sample hoses before and after each use of the instrument and after every replacement of the sample filter. What to Look For: Inspect the inside diameter of the inner tube for signs of oil buildup, dirt, obstructions, kinks, cuts, fraying, or any other signs of wear. Oil contamination can be cleaned out of the sample hoses as directed below.
Replacement Parts Replacement parts are available directly from Robinair distributors. To find your nearest distributor, look on our web site at www.robinair.com or call 1-800-822-5561. Part Description Part No.
Specifications Sample Parameters Vapor only, oil-free, 300 psig (2 MPa max.) Detected Compounds R-12, R-134a, R-22, hydrocarbons, air Sensor Technology Non-Dispersive Infrared (NDIR) Refrigerant Sample Size 0.3 ounces (8.5 grams) per sample Refrigerant Loss during Purge Operation Typically 0.4 ounces (11 grams) per minute of purge time.
Warranty This product is warranted to be free from defects in material and workmanship under normal use and service for a period of one year after the sale of the product. Exceptions to this policy will be individually identified.
% Visit our web site at www.robinair.com or call our Toll-Free Technical Support Line at 800-822-5561 in the continental U.S. or Canada. In all other locations, contact your local distributor. To help us serve you better, be prepared to provide the model number, serial number, and date of purchase. To validate the warranty, complete the warranty card attached to the unit, and return it within ten days from date of purchase.
