Yellow Jacket 69336 Operating Manual

YELLOW JACKET

ACCUPROBE™ UV and ACCUPROBE™ II

Refrigerant Leak Detector with Heated Sensor

®

Instruction and Operation Manual

Models 69336, 69337, 69338, 69339 and 69354

Design Certified to meet
SAE J2791 for R-134a

Made in U.S.A.

Introduction

The YELLOW JACKET® ACCUPROBE
ACCUPROBE
all HCFC refrigerants such as R-22 and R-124. The
ultra-sensitive long life sensor with exclusive
Heated Electrochemical Sensor Technology (HES)
also detects the more current, difficult-to-detect
HFC refrigerants such as R-134a, R-404A, R-407C
and R-410A (see page 6 for a more complete chart
of detectable refrigerants).

The ACCUPROBE UV is equipped with the unique
digital SmartAlarm
leak size indicator in a hand-held heated sensor leak
detector. This feature takes the guesswork out of
whether or not to repair a small leak. Unlike the
more traditional LED bar graphs that copy or mimic
the audio alarm signal, the SmartAlarm digital leak
size indicator measures, registers and displays the
leak size independently from both the audio alarm
and the sensitivity level.

™

II Hand-held Leak Detectors detect

™

LED display – the first digital

™

UV and

The ACCUPROBE UV also features a 3 LED UV
light system that works with 395-415nm wavelength
leak tracing dyes. The sleek, ergonomic design of
these YELLOW JACKET leak detectors makes
them easy to use in close areas and extendable into
hard-to-reach areas.

When finding leaks, it is important to note that the
AccuProbe responds to changes in concentration of
refrigerant. For this reason, the detector will stop
alarming even though it is held at or near the source
of the leak and will not alarm again until the detec­tor senses a change in concentration. To verify the
exact location of the source of the leak, always
move the probe away from the area of the leak
briefly to allow the sensor to reset at a lower con­centration, and then bring it back again until the
exact location of the leak source has been verified.

Features

 Advanced digital SmartAlarm™ leak size indica-

tor (AccuProbe UV)

 Flashing visual alarm indicator at probe end

(AccuProbe UV)

 Audio mute button (AccuProbe UV)

 Operates on 4 AA alkaline batteries (AccuProbe

UV can also use AC power)

 3 LED UV light system that works with 395-

415nm wavelength leak tracing dyes (AccuProbe

UV)

 Microcontroller technology

 Ultra-high sensitivity to detect 0.06 oz (1.7g)/yr.

of R-134a and 0.03 oz (0.9g)/yr. of R-22

 Automatic calibration and reset to ambient

 Detects HFC, HCFC and CFC refrigerants (see

page 6)

 Long life stable sensor utilizing Heated Electro-

chemical Sensor (HES) technology

 3 selectable sensitivity level settings

 Sleek ergonomic design

 Low battery indicator

 Temp Range 24° to 125°F (-4° to + 52°C)

 Humidity 0 to 95% RH noncondensing

 SAE J2791Certified

 CE Marked

 True mechanical pump

Specifications

Sensitivity 0.06 oz (1.7g)/yr. of R-134a 0.03 oz (0.9g)/yr. of R-22

Power 4 AA alkaline batteries

Probe Length 17 inches (430mm)

Calibration Automatic

Sensor Life >300 hours

Length(body) 10.5 inches (270mm)

Weight AccuProbe II - 15 ounces (430g); AccuProbe UV - 17 ounces (480g)

Battery Life 4.5 hours continuous

Response Time Instantaneous

2

Parts and Controls

UV LEDs

Alarm speaker

Digital SmartAlarm™

UV LED

Power ON/OFF

Audio mute

Heated sensor

Flashing LED

Flexible probe

AccuProbe UV

Tip

Battery Installation

AccuProbe UV

AccuProbe UV

Low battery indicator

Sensitivity level indicators

Sensitivity adjust/select

Power ON/OFF

A/C adapter jack

AccuProbe II

1. Loosen battery door screw located on the
bottom of the detector and remove door.

2. Install 4 AA alkaline batteries observing
the proper battery polarity as labeled

AccuProbe II

1. Loosen screw located at rear end of unit
and pull down hinged battery door to
open as shown.

2. Always insert all four batteries with the
proper polarity.

inside the battery compartment and
shown above.

3. Reinstall the battery door and tighten the
screw.

3

Operating Instructions

AccuProbe UV

1. POWER ON: The detector is turned ON and
OFF by pressing the POWER button (see figure
1 below).

2. WARM-UP: The detector automatically starts
heating the sensor to condition it for use. While
in this WARM UP phase – and until ready – the
instrument will signal audibly by beeping slowly
and visually by flashing the sensitivity LEDs
and the zero (0) in the SmartAlarm™ display
window. Warm up time is usually about 20
SECONDS or less. For maximum sensitivity,
wait an additional one minute after normal
warm-up.

3. SEARCH: The detector is ready for leak search­ing when the sensitivity LEDs stop flashing and
the beep rate increases. At this time the zero in
the display window stops flashing. When a leak
is detected, the beeping sound and flashing LED
in the probe will increase in frequency, and the
SmartAlarm digital LED display will turn on
indicating the leak size. If no leak is detected go
to HI sensitivity and continue searching.

SmartAlarm™ Display

The SmartAlarm LED Display is a digital leak size
indicator that numerically displays the leak size on a
scale of 1 to 9 for all HFC and HCFC refrigerants –
regardless of the sensitivity setting. This value helps
you decide whether or not the leak is large enough to
require repair.

For example, when in the HI sensitivity mode, the
detector may sound a full audio alarm but the SmartA­larm Display may show a low number – indicating
that the leak is very small. In contrast, when in the LO
sensitivity mode, a full audio alarm may not sound but
the SmartAlarm may show a high number, indicating
that the leak is large.

Low
battery
indicator

UV LED
Power
ON/OFF

Audio
mute

Figure 1

4

Sensitivity
level
indicators

Sensitivity
adjust

Power
ON/OFF

SmartAlarm™
DISPLAY

1 TO 3 < 0.1 (2.8g)

4 TO 6 0.1 to 0.5 (2.8-14g)

7 TO 9 > 0.5 (14.1g)

*HFC and HCFC Refrigerants

The maximum value displayed, once the source of
the leak is located, indicates the leak size. This value
helps you decide whether or not a leak is large
enough to require repair. The table above shows the
leak rates corresponding to the SmartAlarm numeri­cal display.

LEAK SIZE
DISPLAY (OZ/YR.)*

UV LIGHT OPERATION

CAUTION:

EMITS ULTRAVIOLET RADIATION

Before leak checking with the UV light:

(a) Make sure the A/C system is properly charged

(b) Run the A/C system long enough to thoroughly

1. Turn on UV light by pressing the UV light

2. Holding the leak detector approximately 10” to

3. When the UV light shines on the fluorescent

4. The UV LEDs will automatically turn off after

 This UV LED during operation

radiates UV light

 Avoid direct eye and skin exposure

to UV light

 If viewing the UV light is necessary,

please use UV filtered glasses to
avoid damage by the UV light

with sufficient dye (see manufacturer’s specifi­cations for proper dye charge.)

mix and circulate the dye with the refrigerant
and lubricating oil.

ON/OFF button (see diagram on left).

14” away, shine the UV light beam slowly
over the components, hoses, and metal lines
that make up the A/C system.

dye that has escaped from the system, the dye
will glow a bright yellow green.

five minutes.

3 UV LED
Lights

Using the SmartAlarm Display

1. The SmartAlarm will not display a num­ber (1 through 9) until a leak is sensed.
Once a leak is sensed, the numbers on the
display will gradually increase.

2. Use the SmartAlarm display to "zero in"
on the leak source by watching the num­bers climb higher as the leak source is
approached.

3. Once the leak source has been located,
always wait for the maximum number
to be displayed to determine the size of
the leak.

4. Lower numbers (approximately 1 to 3)
indicate that the leak size is less than

0.1 oz/yr. and may not require repairing
at this time – depending on the amount
of gas in system. NOTE: Multiple small
leaks in a system are cumulative and
may require that all system leaks should
be repaired.

AccuProbe II

1. TURN ON: Press the ON/OFF button once to
turn on and again to turn off.

2. WARM UP: The detector automatically starts
heating the sensor. During the heating cycle,
the detector will sound a slow “beep.” Warm
up is generally less than 20 seconds. For maxi­mum sensitivity, wait an additional one minute
after normal warm-up.

3. READY: The detector is ready to begin
searching for leaks when the green sensitivity
LED turns on. The audio “beep” increases in
frequency.

Sensitivity
level
indicators

Power
ON/OFF

Sensitivity
adjust

Adjusting the sensitivity levels

To choose another sensitivity level, press the
Sensitivity button. The LED below each level
will change indicating the new setting.

The leak detector will default to the NORM
sensitivity level automatically once the unit
comes out of the warm-up cycle and the green
LED turns on.

Using the Leak Standard

Use the leak standard to determine that the
leak detector performs to specifications.

1. Lift off the plastic sealing cap on the top
of the LEAK STANDARD.

2. POWER ON the unit. After WARM UP
and when READY expose the sensor
directly to the small hole in the top of the
bottle cap. The beep rate should increase
to an alarm. For the AccuProbe, the
SmartAlarm should display a number
greater than 2. If the SmartAlarm fails to
display 2 or above, leave the detector on
for approximately 15 to 30 seconds
longer and retest. This indicates that
the sensor and electronic circuit are
functioning properly.

3. Replace plastic cap seal after leak test.
Note: Replace the leak standard when the
green color is no longer visible.

Removable sealing cap

Non-removable cap with
leak opening

Non-ozone depleting
chemical has green color

Leak Standard Bottle

AccuProbe II Keypad

5

Low battery indication

Replace the batteries when the red low battery
LED comes on (see page 3). Follow instruc­tions under section titled "BATTERY IN­STALLATION" on page 3.

Audio alarm mute (AccuProbe UV)

To silence the audio alarm,
press the MUTE button. Press
the MUTE button again to
restore the audio alarm.

Sensor failure mode

If the sensor is not working correctly, the
AccuProbe Leak Detector will not come out of
the warm-up mode. (Some competitive units
without this function will not alert you that the
sensor is malfunctioning or has failed.)

If the AccuProbe detector does not come out
of warm-up, first be sure the sensor is plugged
in all the way. If that does not correct the situa­tion, replace the sensor.

Push straight on (do not twist) to install sensor

Unscrew tip to

replace filter

Filter

Maintenance

Batteries: Replace the batteries when the

red low battery LED turns on. See “BATTERY
INSTALLATION” on page 3.

Sensor filter replacement: Unscrew the

sensor tip as shown to replace the filter. For
optimum performance, replace filter whenever
it becomes visibly dirty with grease or oil or
every 2-3 months (depending on use).

Note: Never clean dirty filters with a solvent
or soap and water. Always replace with a
new filter supplied with the leak detector or
they can be re-ordered from your supplier
or distributor.

Sensor replacement: Remove sensor by

pulling out of socket. Install the new sensor by
aligning the notch in the sensor cover with the
raised keyway on the sensor socket holder (see
Figure 2).

Note: Do not force sensor into socket.
Misalignment can damage the sensor pins.

Keyway alignment

6

Pull straight out (do not twist) to remove sensor

Figure 2

Replacement Parts

AccuProbe UV

and

AccuProbe II

AccuProbe UV

AccuProbe II

Parts kit (sensor, filters and leak standard bottle) 69383

Sensor and filter 69384

Sensor filters (package of 5) 69385

Leak standard bottle 69386

A/C Adapter Input: 115V 60Hz UL listed 69380

A/C Adapter—EU/UK Plug Input: 230V 50Hz
CE & TÜV Approved

A/C Adapter—AU/NZ Plug Input: 230V 50Hz
CE & TÜV Approved

Battery cover and screw 69388

Carrying case - blow molded with inserts 69387

Carrying pouch 69361

Troubleshooting Guide

PROBLEM CHECK REPAIR OR REPLACE

No power

Stays in "warm up"
mode

No detection

Slow recovery after
detection

No beeping

 Check for weak or reversed

batteries

 Sensor not plugged into socket

correctly

 Sensor open/defective

 Check sensor with leak standard

bottle

 Check if the filter is dirty or sensor

opening is plugged

 Check if filter is dirty or sensor

opening is plugged

 Nothing  Press mute button (if equipped)

 Replace batteries

 Make sure sensor is pushed all the

way down into socket

 Replace sensor

 Replace sensor

 Replace filter or clean out opening

 Replace filter or clean out opening

to turn speaker back on

69381

69378

Partial list of detectable SNAP* listed refrigerants

R-12 ALTERNATIVES R-22 ALTERNATIVES

R-134a, R-401A (MP-39), R-401B (MP-66), R-401C (MP-52), R

-406A (GHG)

R-414A (GHG-X4), R-414B (Hot Shot), R-416A (Frig C, FR-12)

R-409A (FX-56), Freeze 12, Free Zone, GHG-X5, GHG-HP,
IKON 12

R-502, R-500 ALTERNATIVES

R-402A&B, R-404A, R-407A, R-408A, R-411A&B, R-507 R-290, R-600A, R-170/R-290, R-600A/R-290

* SNAP (Significant New Alternatives Program) an EPA program for ozone depleting refrigerants for mobile and stationary A/C systems

R-407C, R-410A, R-410B, R-507

R-113, R-13B & R-503 ALTERNATIVES

R-403B, R-508A, R-508B

HC REFRIGERANTS (not SNAP approved)

7

24 MONTH LIMITED WARRANTY

Ritchie Engineering guarantees YELLOW
JACKET AccuProbe Leak Detectors to be free of
defective material and workmanship that would
affect the life of the product under
normal use for the purpose for which it was
designed. This warranty does not cover items that
have been altered, abused, misused, improperly
maintained or returned solely in need of field
service maintenance. This warranty excludes the
sensor, which is warranted for one year.

If found defective, we will upon compliance with
the following instructions, credit, replace or
repair at our option, the defective leak detector
provided it is returned within 24 months of the

Cross Sensitivity to Automotive Chemicals

Some automotive solvents and chemicals have similar hydrocarbon properties as R-134a and
may elicit a positive response (<30 seconds) from the AccuProbe. Before leak checking, clean
up any chemicals in the list below that elicit a positive response.

Brand/Chemical Name Response

Dextron Transmission Fluid heated to 160° F N

Quaker State Motor Oil heated to 160° F N

Rain-X Windshield Wash Fluid N

Ford Silicone Lubricant N

Ford Rust Inhibitor (when wet) Y

Ford Gasket Adhesive (when wet) Y

Loctite Natural Blue Degreaser (undiluted) Y

Ford Brake Parts Cleaner (when wet) Y Yes

Ford Silicon Rubber (when uncured) Y Yes

Motorcraft Antifreeze heated to 160° F Y Yes

Gunk Liquid Wrench (when wet) Y Yes

Ford Spot Remover (when wet) Y Yes

Ford Pumice Lotion (with mineral solvent) Y Yes

Ford Motorcraft Brake Fluid Y Yes

Ford Carburetor Cleaner (when wet) Y Yes

date of sale. ACCUPROBE leak detectors have a
date of manufacture serial number located on the
label on the bottom of the unit.

Correction in the manner provided above shall
constitute a fulfillment of all liabilities with
respect to the quality, material and workmanship
of the product.

THE FOREGOING WARRANTY IS
EXCLUSIVE AND IN LIEU OF ALL OTHER
WARRANTIES OF QUALITY, WHETHER
WRITTEN, ORAL OR IMPLIED.

Clears <30 seconds

N/A

N/A

N/A

N/A

Yes

Yes

Yes

YELLOW JACKET Products Division

For tips on searching

for leaks, visit

www.yellowjacket.com

Copyright © 2006-2012 Printed in U.S.A. P/N 400399_Rev.C

Telephone: [phone] or 952-943-1333

Ritchie Engineering Co., Inc.

10950 Hampshire Avenue South

Bloomington, MN 55438-2623

Fax: [phone] or 952-943-1605

E-mail: [e-mail]

Web: www.yellowjacket.com