OPERATION MANUAL
ID900
Portable Refrigerant Identifier
WARNING
Liquid Samples will Damage Unit
Do not operate if filter has red flecks.
Replace filter every 3 months
or after every 25 uses.
Always have a spare
Call RTI Technologies to order
4075 East Market Street
York, Pennsylvania 17402
Phone: 800-468-2321 or 717-840-0678
Fax: 717-755-8304
E-mail: rti@rtitech.com
Web-site: www.rtitech.com
Manual No. 035-80979-00
Table of Contents
I. Cautions and Warnings 3
II. Functional Description 4
III. Hardware Description 5
A. Instrument 5
1. Case 5
2. Hanger 5
3. Sample Filter 5
4. Control Panel 5
5. Air Intake Port 5
6. Sample Exhaust Port 5
7. Sample Inlet Port 5
8. Air Detection Sensor 5
9. Control Circuit Board 5
10. Purge Pump 5
11. Power Connector 5
B. Sample Hoses 6
1. R12 Sample Hose 6
2. R134a Sample Hose 6
C. Power Harnesses 6
1. Vehicle Battery Adapter 6
2. Wall Power Adapter 6
D. R134a Tank Adapter Fitting 6
E. Storage Case 6
IV. Operation Procedures 7
A. Pre-Operation Inspection 7
B. Operation Procedure 7
C. Post Operation Procedure 8
V. Maintenance 9
A. Error Codes 9
B. Maintenance Procedures 10
1. Sample Filter Replaceme nt 10
2. Sample Hose Cleaning 10
3. Air Detection Sensor Replacement 11
C. Spare Parts Listing 11
VI. Specifications 12
2
I. Cautions and Warnings
A. Cautions
Never use any sample hose other than those approved for u se w i t h the ID900. The use o f ot her hose t y pes may introduce
errors and excessive refrigerant loss.
Always verify that the refrigerant sour ce t o be test ed w i ll not emit oil or liquid refrigerant before connecting the ID900
sample hose.
Never connect the ID900 to any refrigerant source that exceeds 300-psi pressure.
Do not utilize the coupling supplied on the ID900 R134a sample hose for any purpose other than ID900 sampling. The
coupler supplied on the R134a hose does not contain check valves and will continually vent refri ger ant .
Never obstruct the sample exhaust or air intakes of the i nstrument during use.
Do not throw, drop, immerse in l i qui d or ot h e rwise mistreat the instrume nt.
Always store the instrument in its storage case when not in use.
Maintain the cleanliness of the instrument at all times to prevent contamination and prolong life.
B. Warnings
Read and understand this manual before attempting to utilize the instrument.
Flammability Warning: The ID900 is not capable of direct detection and indicatio n of t h e pr esence of h y dr ocarbo n
compounds. Hydrocarbon compounds may present a flammability hazard when present in sufficient concentrations. The
user is cautioned that whenever the ID900 indicates that unknow n co nt aminates are present the potential exists for a
hydrocarbon flammability hazard.
Sample Filter Warning: Always inspect the outside diameter of the white sample filter element before and after each use
of the instrument. As soon as red spots begin t o appear on any por t i on o f t he w hi t e el em ent out si de di ameter the filter will
require replacement. Failure to replace the filter when so indicated may result in out of warranty damage to the instrument.
Sample Input Warning: The instrument requires connection of the sample hose to the low or vapor side port of the
source vehicle or refrigerant cylinder . Connection of the sample hose to the high or liqui d por t of t he sou r ce vehi cl e or
refrigerant cylinder will result in out of warranty damage to the instrument. Additionally, the low side or vapor port shall
not emit sample gas in excess of 300 psig or sam ple gas that cont ai ns oi l or li qui ds.
Sample Hose Warning: Always inspect the sample hose before and after each use of the instrument. Immediately replace
the hose if it appears cracked, crazed, obstructed or fouled with oil.
When testing vehicle air conditioning systems make sure that the vehicle is turned off and not runnin g. This will prevent
EMI/RFI problems as well as eliminate potential user hazards from moving parts of the vehicle.
Air Sensor Warning: The air detection sensor is a chemical fuel cell sensor t hat wi ll expi r e aft er 6- 15 months of
operation. The user must replace the air detection sensor whenever the instrument indicates as such. Failure to replace the
air detection sensor will result in non-functionality of the instrument.
Always wear eye and skin protection when working with refrigerants. Escaping refrigerant vapors can freeze upon contact.
DO NOT direct refrigerant vapors escaping from the sample hose towards exposed skin or the face.
Connection to Power Sources greater than 14V D C could cause “Out of Warranty” damage.
Connection to a battery which is not fully charged or is smaller than a typical car battery, may cause errors in reading.
If using the optional wall power adapter, be sur e t he volt a ge rating of the adapter (115 or 230 VAC inle t ) ma t ches t he AC
power source.
DO NOT use wall power adapter in areas where it could get wet.
TO REDUCE THE RISK OF BATTERY EXPLOSION DUE TO SPARK GENERATION: First Connect the RED
clip to the positive 12 volt battery terminal; then, connect the BLACK clip to a metal ground location away from the 12
volt battery.
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II. Functional Description
Contamination of refrigerant in ai r conditioning systems or st or age cy l i nders can lead to component corrosion, component
destruction, elevated system head pressure and system failures when utilized by unsuspecting technicians. The ability of a
technician to determine refrigerant type and purity is severely hampered by the presence of air when attempting to utilize pressuretemperature relationships. The development of substitute refrigerants further complicates refrigerant identification and purity
determination based upon pressure - t emperature relationships.
The ID900 Automotive Refrigerant Identifier will provide a fast, easy and accurate means to determine refrigerant type and purity
in refrigeration systems and refrigerant storage cylinders. The instrument utilizes a combination of infrared and chemical fuel cell
technologies to determine purit y and cont amination levels or refrigerants R12 and R134a as well as air concentr at i ons i n both
refrigerant types.
The instrument is supplied in a storage case that will house al l com ponents. R12 and R134a sample hoses are provi de d as well as a
R134a cylinder adapter fitting and a power cord for connection directly to the vehicle battery. An optional wall power adapter is
available to permit powering of the instrum ent di rectly from standard wall power outlet s.
Sample gas is admitted into the instrument throug h t he sup pli e d sample hose and presented to the sensing devices. The instr um e nt
will provide a digital readout of refrigerant purity, a pass or fail condition and the amount of air contamination. A sample will be
considered to be pure, or passed, if the concentration has been det e rmined to be 98% by weight or greater of a single refrigerant.
The instrument will also provide the user with a dir ect r eadout o f unknown compounds that can be R22, hydrocarbons or other
refrigerants commonly utilized in blended refrigerant types.
All operating instructions are provide d t o the user t hr oug h d i spl ay prompts to avoid mistakes and erroneous r eadi n gs.
The ID900 Automotive Refrigerant Identi fi er w il l provi de t h e r e fr i gerant technici an w i t h know l e d ge of r efr i ger ant pur i t y and
protection against equipment and air condi ti oning system damage resul t i ng from contamination.
4
t
e
l
r
A
l
11. Power
Connector
11. Power
Connector
Hanger
Sample filter exit
tube
10. Purge
Sample filter inle
valv
View with Cover Removed
III. Hardware Description
9.Control Circuit
Board
4. Control Pane
Sensor Housing
8.Air Detection
InletPressure
Regulator
3. Sample filte
Front View
ir Intake
Port
Sample Inlet Port
Serial Number
Location
6. Sample exhaust
1. Case
Housing screws;
8 tota
Rear View
A. Instrument: The instrument houses the basic components requir ed for opera ti o n of t h e I D 900 as dep i ct ed abov e.
1. Case: an injection molded plastic housing that houses al l i nter nal com ponent s.
2. Hanger: connects into the side of the case and provides the user a means to hang the instrument above the working area for
hands free operation.
3. Sample Filter: will filter oil mists and particulate from the sample gas admitted into the instrument to provide trouble-free
function of the detection and sampling components.
4. Control Panel: consists of a 2-line, 16-character digit al displ ay and two pushbutton switches. The displ a y w i ll conv ey
analysis results and instructions to the user. The switches provide a means by which the user can communicate with the
instrument microprocessor du r i ng use.
5. Air Intake Port: will admit fresh air into the sampling system to permit calibration of the infrared and chemical fuel cell
detection devices.
6. Sample Exhaust Port: will emit sample gas that has been analyzed by the instrument.
7. Sample Inlet Port: permits the connection of either a R12 or R134a sample hose to the instrument.
8. Air Detection Sensor: a chemical fuel cell that will det ect t he amount of air contained within a refrigerant sample.
9. Control Circuit Board: directs all activities of the instrument throu gh t he embedded microprocessor. The infrared detection
device is also contained on this circuit board and will provide all detection of refrigerant components of the sample gas.
10. Purge Pump: will draw ambient air through the ai r i ntake por t for t he pur p ose of detection device calibration and
instrument sample system purging.
11. Power Connector: will accept the installation of either the standard vehicle battery adapter or the optional wall power
adapter to provide the instrument with operating power.
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B. Sample Hoses
1. R12 Sample Hose: is a 6-foot hose consisting of a nylon inner tube surrounded by a po l y ur et hane outer tube. The hose
contains the instrument connection fitting on one end and a ¼” SAE female flare nut on the other end. This hose is to be
utilized when sampling from R12 vehicle systems or storage cylinders.
2. R134a Sample Hose: is a 6-foot hose co nsi st i ng o f a ny l on i nner t ube surrounded by a polyurethane outer t ube. The hose
contains the instrument connection fitting on one end and a R134a low side coupler on the other end. This hose is to be
utilized when sampling from R134a vehicle systems or storage cylinders.
C. Power Harnesses
1. Vehicle Battery Adapter: is a 6-foot power cable that has an instrument mating connect or on one en d and vehicle battery
connection clips on the other end. This harness is utilized t o connect power fr om t he vehicl e bat t er y t o opera te the
instrument and avoid the use of extension cords.
2. Wall Power Adapter (Optional): is a 6-foot power cable that has an instrument mating connector on one end and a plug- i n
power transformer on the other end. This har ness i s ut i lized t o con nect po w er from either a standard 115 or 220 VAC wall
power outlet to provide operating pow e r t o t he instr um e nt . A separ a t e wa ll pow er adapt e r i s pr ovi de d for 115 or 220 VAC
source power.
Warning: Verify the wall power adapter AC inlet vol t a ge, ei t her 115 or 2 30, matches the AC power available.
D. R134a Tank Adapter Fitting: pr ovi des a conver si o n o f st andar d R1 3 4a cy l inder ACME threaded ports to a R134a low side
coupler stub. This will permit the use of the instrument R134a sample hose during refriger ant cy l i nder sampling.
E. Storage Case: is a cardboard container that houses the instrument, oxygen sensor, adapter fitting, sample hoses, power adapters
and manual during non-use periods.
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IV. Operation Procedure
A. Pre-Operative Inspection
1. Inspect the outside diameter of the white element contained within the sample filter for any signs of red spots. The
appearance of red spots anywhere on the outside diameter of the element indicates that the filter requires replacement to
avoid fouling of the instrument.
2. Select the R12 or R134a sample hose as dictated by the applicat i on. I nspect t he hose for cracks, si gns of w ear , obst r uct i on
or fouling. DO NOT use any hose that has any sign of wear. Install the sample hose onto the sample inlet port of the
instrument by hand-threading the hose end onto the connect or .
3. Inspect the air intake port and sample exhaust port t o ver i fy that t hey ar e not clogged or obstructed.
4. Inspect the port of the air conditioning system or storage from which the sample will be taken. Ver ify t hat t he port wi ll
emit vapor only and will not emit liquids or oil.
5. Install the Vehicle Battery Adapter or the Wall Power Adapter harness into the power connector of the instrument.
B. Operation Procedure
1. Power the instrument by connecting the power harness to the vehicle battery terminals or by pluggin g t h e w a ll power
adapter transformer into an appropriate wall outlet.
2. The instrument will begin a warm up period of 30-60 seco n ds.
3. During the warm up period the user will have the option to enter the local elevation above sea level into the instrument
memory. The instrument is sensitive to elevation changes of 500 feet (152 meters) and the local elevation must be entered
into the instrument memory upon initial use. Normal barometric variations will not affect the performance of the
instrument. Once the elevation has been entered it does not ever require entry again unless the instrument is moved t o a
new elevation.
The screen “USAGE ELEVATION <<<NOT SET>>>“ is displayed during warm- up if the el evat i on has n ot been set .
Set the elevation to prevent the displaying of this screen during warm-up as di r ect ed bel ow .
a) During the warm up period depress and hold the “A” and “B” pushbuttons simultaneously until the display reads
“USAGE ELEVATION, 400 FEET”. This is the factory setting of 400-feet (122-m eter s).
b) Use the “A” and “B” pushbuttons to adjust the elevation readi n g t o t he nearest 100- fo ot ( 30-meter) increment to the
local elevation. The “A” pushbutton will increase the elevation setting in 100-foot (30-meter) increments. The “B”
pushbutton will decrease the elevation setting in 100-foot (30-meter) increments. The elevation setting is adjustable
from 0-9000 feet (0-2743 me ter s ) and i s disp l a y e d dur i ng adjustment.
c) When the correct setting has been achieved, allow the instrument to sit for approximately 20 seco nds w h i l e not pushing
either of the buttons. The setting will automatically be stored into the instrument memory.
Note: Failure to correctly enter the local elevation may result in detection errors.
Hang the instrument from vehicle hood or st or age cy l i nder .
Note: Laying the unit flat will cause calibration errors and inaccurate readings.
4. The instrument will now draw ambi ent air into t he i nstrument through the air intake port for approximately 30 seconds.
The ambient air will be utilized to calibr a t e the detect i on devices and purge the instrument plumbi ng of r e si due r e fr i ger ant
vapors.
Note: For proper calibration, the surrounding ambient air must be clear of refrigerant vapors, hy dr ocar bons and oxygen
depleting compounds such as carbon dioxid e or car bon monoxide.
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5. When prompted by the instrument, connect the free end of the sample hose to the vehicle air conditioning system or
refrigerant storage cylinder port and press the “A ” pushbutton. Sample gas will immediatel y begi n t o flow i nt o the
instrument. The instrument will require approximately 30 seconds to complete the sample gas analysis.
6. When the analysis has completed imm edi at el y di sconn ect the sample hose from the refrigerant source.
Note: The instrument contains no automatic shut-off and r e fr i ger ant vap ors w i ll cont i nue to fl ow out of t he so ur ce as
long as the hose is connected. To conserve refrigerant stores and prevent excessive refrigerant venting, DO
NOT leave the instrument unattended during analysis cycles and disconnect the sample hose from the source
immediately after prompt ed by t he instr ument.
7. The results of the analysis will be presented to the user on the instrument display.
a) PASS: Indicated whenever a sample is detected to have 98% by weight or greater of R12 or R134a. The refrigerant
type and air concentration will be indicated.
b) FAIL: Indicated whenever a sample is detected to be a blend of R12 and R134a refrigerants with neither R12 or R134a
having 98% by weight or greater concent r at ion. The w e i ght percentages of R12, R134a and air will be indicated.
c) FAIL CONTAMINATED: Indicated whenever unknown refrigerant types such as R22 or Hydr ocar bo ns have been
detected in concentrations of 4% by weight or gr eat er. No weight concentrations of refrigerants or ai r ar e pr ovi ded i n
this mode.
d) NO REFRIGERANT – CHK HOSE CONN: Indicated whenever a sample is detected that contains 90% by weight
or greater air. This condition usually occurs when the R134a sample hose coupler has not been opened, the sample
hose has not been connected to the sample source, or i f there is no refrigerant present in the sample source.
8. The instrument will keep the analysis results on the display until the user presses the “A” pushbutton. Once the “A”
pushbutton is pressed follow the directi ons o n the scr een.
9. If another sample run is desired, follow the prior i nstructions from step 5. If no other sample r un i s desir e d di scon nect the
power harness from the vehicle or the wall outlet to end the routine.
C. Post-Operation Procedure
1. Disconnect the sample hose from the instrument sample inlet port. Inspect the hose for signs of wear, cr acki n g, oi l foul i ng
or obstruction and replace if necessary. Clean the outside of the hose, coil and stow into the storage case.
2. Inspect the sample filter white element outside diameter for the presence of red spots. If any red spots are found, replace
the sample filter as directed in the maintenance procedures.
3. Disconnect the power harness from the instrument, clean, coil and stow into the storage case.
4. Clean the outside of the instrument of dirt , grime, oil, etc. with a moist rag. Do not use cleaning solut i o ns or wa t er on t he
instrument. Stow the instrument into the storage case.
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V. Maintenance
A. Error Codes and Corrective Actions
The instrument is supplied with self-diagnostic software to aid the user in the determination of problems. The software will
supply error codes that will direct the user towards specific corrective actions in the event of system failure.
ERR.1: Signifies unstable infrared readings due to inconsist ent sample gas supply or interference from strong elect r i cal
fields.
Corrective Actions:
1. If the error code occurs during a sample cycle verify that the sample hose is receiving sample gas from the
source connection of at least 5 psig. Also verify that the inst r um ent sample exhaust and air intake ports are not
clogged or restricted.
2. If the error code occurs during a calibration cycle verify that the air intake and sampl e exha ust p or t s of t he
instrument are not clogged or obstr uct ed.
3. The unit should be kept away from sources of strong electrical fields such as l arge compressors, running
automobiles, etc. Move the instrument 3-5 feet away from the electrical field source and try again.
4. If the instrument is being utilized outside of the operating temperature range of 45-100
instrument to warm or cool to the operating t emperature range and try again. The instrument may require
additional warm up time after power up before use.
5. To clear the error code power down the instrument. The error code will automatically clear.
o
F (7-38oC) allow the
DETECTOR FAULT: Signifies internal infrared sensor failure due to temperature extremes.
Corrective Actions:
1. Allow the instrument to stabilize at room temperature for at least 30 minutes before attempting use.
2. To clear the error code power down the instrument. The error code will automatically clear.
CAL. FAULT: Signifies an infrared calibration fault.
Corrective Actions:
1. Verify that the air intake and sample exhaust por t s of t he i ns t r ument are not clogged or obstructed.
2. If the instrument is being utilized in an enclosed area, refrigerant vapors may build up in the surrounding
atmosphere and be drawn into the intake port dur i ng calibration. Move the instrument to a location with fresh
ambient air free of refrigerant vapors. Use the instrument in locations that provide adequate ventilation to
prevent the accumulation refrigerant vap or s i n t he sur r ou nding atmosphere.
3. Hang the unit so that there is a flow of fresh air ar oun d i t .
4. To clear the error code power down the instrument. The error code will automatically clear.
AIR SENSOR FAULT: Signifies an air detection sensor calibration fault.
Corrective Actions:
1. Verify that the air intake and sample exhaust por t s of t he i ns t r ument are not clogged or obstructed.
2. If the instrument is being utilized in an enclosed area oxygen depleting compounds such as carbon dioxide or
carbon monoxide may accumulate in the surrounding atmosphere and be drawn into the intake port during
calibration. Move the instrum e nt t o a locati on w i t h fr esh ambient air free of oxygen depleting compounds. Use
the instrument in locations that provide adequate ventilation to prevent the accumulation oxygen depleting
compounds in the surrounding atm ospher e .
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Warning: Should it be determined that the air detection calibration failure has been caused by the presence of oxygen
depleting compounds in the surrounding atmosphere the use MUST take immediate action to rid the area of
such compounds or provide adequate ventilation to prevent such accumulation. The accumulation of
oxygen depleting compounds in the surrounding atmosphere will present a human health risk and hazard.
3. To clear the error code power down the instrument. The error code will automatically clear.
RECALIBRATION REQUIRED: Signifies that the prior calibration data is too old and requires refreshing. This message
will appear whenever a 3 minute period elapses from the prior calibration.
Corrective Actions:
1. Remove the sample hose connection from the refrigerant source if so connected. Depress the A button to initiate
a new calibration.
B. Maintenance Procedures
1. Sample Filter Replacement
Inspection Frequency: Inspect the sample filter before and after each use of the instrument.
What to look for: Inspect the outside diam eter of the white element for the appearance of any red spots or the presence
of discoloration. The appearance of red spots or the presence of discoloration will indicate that the sample filter requires
replacement. Do not look into the ends of the filter element since the red indicating dye may always be seen from this
angle. Failure to replace the sample filter when so indicated may result in out of warranty damage to the instrument.
Replacement Procedure:
a) Power down the instrument and disconnect the sample hose.
b) Obtain a replacement filter.
c) Remove the existing filter by pulling it straight up and out of the retaining clip and disconnecting the tube
connections. Do not allow the free tube ends to slip back into the instrument.
d) Discard the existing filter.
e) Install the free ends of the instrument tubes onto the ends of the replacement filter being sure to align the filter flow
arrow with the arrow on the instrument case.
f) Carefully slide the tubes back into the instrument case and position the filter into its retaining clip on the instrument
case.
g) Inspect the sample hoses for signs of oil entrapment. The need to replace the sample filter may indicate sample
hoses contaminated with oil. Replace or flush the sample hose(s) if oil entrapment is found.
2. Sample Hose Inspection and Cleaning
Inspection Frequency: Inspect the sample hose(s) 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 t he i nner t ube for si gns o f cr acki ng, fo ul i ng, oi l ent r apment , kinks or
other signs of wear. Oil contamination can by cleansed by flushing the hose(s) as described below. H oses t hat show
signs of wear should replaced immediately.
Sample Hose Flushing Procedure:
a) Remove the hose from the instrument and flush with isopropyl alcohol.
Warning: Flush hoses away from sparks, open flames or any other ignition source and in an area wit h appropriate
ventilation.
b) Dry the hose by blowing clean, dry oil-fr ee nitrogen or shop air through the inner tube; or; al l ow t he hose to ai r -
dry for several hours. Take care not to dry the hose with lubri cat ed shop ai r .
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c) When the hose is completely dry inspect the hose for signs of wear as described above.
3. Air Detection Sensor Replacement
Inspection Frequency: The instrument will inform the user of possible air detection replacement r e quirements with the
error code Replace Air Sensor.
Air Detection Sensor Replacement Procedure:
a) Refer to the error code corrective actions and try each suggested action. If the instrument still indicates the error
code then the air detection sensor will requir e r e pl acement.
b) Power down the instrument and remove the sample hose from the instrument sample inlet port.
c) Turn the instrument onto its face and remove the eight phillips head screws from the rear countersunk holes.
d) Carefully remove the instrument case front to expose the int er nal components.
e) Carefully lift the control circuit board and disconnect the air detection sensor harness fro m the circuit by pulling
straight out of the circuit board connector.
f) Lift the air detection sensor housing strai ght up fr om t he i nstrument off of the support pins and remove the
sensor by unthreading. Discard the spent sensor .
g) Obtain a replacement air detecti on sensor, part number 1-16-1013-00- 0, and install it into the housing by
threading to hand-tight.
h) Replace the housing into the instrument by seating the housing through holes over the two case pins.
C. Spare Parts Listing
Spare parts are available directly from the Neutronics Incorporated Sales or Service Department. To or der spar e part s
contact Neutronics Incorporated by phone at ( 610) 524-8800 or by fax at (610) 524-8807. Have a shi ppi ng name, address
and purchase order number ready as well as the model and ser ial number of the instrument and the part number of the spare
part.
Spare Part Description Order Part Number
User Instruction Manual 035-80979-00
Sample Filter 026-80128-00
i) Route the sensor harness to the circuit board and plug it into the sensor harness header of the circuit by pressing
straight in. The harness is keyed and will only fit securely in one direction.
j) Verify that the circuit board is properly positioned onto the mounting studs of the instr ument case.
k) Secure the housing halves together using the eight phillips head screws.
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VI. Specifications
Sample Parameters:
Vapor only, oil and liquid free , 300 psi g ( 2 M P a) M a ximum
Detected Compounds:
R12, R134a, Air and unknown compound s
Sensor Technologies:
Non-Dispersive Infrared and Chemical Fuel Cell
Refrigerant Sample Size:
0.12 ounces (3.5 grams) per typical sample – weight of vapor loss
Power (Standard):
Powered by vehicle battery through cli p- on adapter harness (10 to 14 VDC).
Power (Optional):
Powered by line power through plug- i n w al l adapter harness, 115 VAC unit (OPTIONAL) or 220 V A C uni t (OPTIONAL)
Operational Temperature Range:
o
45-100
F (7-38oC)
Instrument Weight:
1.5 Lbs. (454 grams)
R12/R134a Purity Setpoint:
Pass if single refrigerant, R12 or R134a, is detected in concentrations equal to or greater than 98% by weight.
Unknown Refrigerant Purity Setpoint:
In the presence of detected unknown refrigerant types R12 or R134a is considered pure if detected in concentrations equal to or
greater than 96% by weight.
Effect of Air Concentrations:
Air is not considered a contaminate and will be removed from the weight concentration determination of refrigerants. Air
concentrations will only be reported f or bl en ds of R 1 2 an d R13 4a r e fr i ger ants .
SAE J1771:
If the refrigerant being tested is identifi ed as contaminated, any visual percentages display e d of C F C-12 (R-12) or HFC-134a (R134a) outside the design certified value is informational and may not be accurate. SAE J1771 Certification Note: This equipment
has not been designed certified for contaminate detection of R-124 or R-142B.
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