Refrigerant
H-10PA
Congratulations! You have just
purchased the most versatile, high
performance service leak detector
available in the industry today. This
product has all the capability of
the proven H10PM model except
it does not contain the rechargeable battery and charger. The
H10PA is powered by an external
mobile 12 VDC battery using the
included battery clamp and/or
cigarette lighter power cable. This
provides for ongoing testing without the need for frequent overnight
recharge as is required with the
H10PM.
It will detect refrigerants with a
sensitivity to effectively pinpoint
both small and large leaks quickly
and efficiently. We encourage your
review of this manual to assure
satisfactory performance and a
long service life.
Leak Detector
For technical support call:
1-800-736-4666
How the H10PA Works
The sensor in the H10PA uses a positive ion emission technology, commonly
known as the heated diode. It is very
sensitive to only halon substances
(refrigerants) making this product highly
resistive to false alarming, while retaining
superior sensitivity for pinpointing the
most difficult to find refrigerant leaks.
A pump inside the unit draws air
through the sensor. Any presence of
halogen gases (such as refrigerants)
causes an ionized current to flow that
sounds a speaker and illuminates a
neon light in the probe. Sensitivity to
pinpoint both large and small leaks can
be controlled by adjusting a three-position switch.
Panel Operating Controls
Before you use the unit for the first time:
Sensor Heat
Adjustment
(turn clockwise
to increase heat)
Power
Plug
Power
Switch
Calibration
Reference
Bottle
Sensitivity Switch
Sensor
Mode
Switch
Sensor “Set”
Indicators
Remove the sticky-label disc from the
cap of the
This disc can be reused to help seal the
vial when the leak detector is not in use
or it can be discarded. DO NOT attempt
to unscrew the cap; you may damage
the bottle! It is filled with enough refrigerant to last approximately six months.
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CALIBRATION REFERENCE bottle.
Operating Instructions
1. Using the included cables, connect
to the 12VDC Battery and plug cable
into the unit.
2. Slide
LEAK SIZE switch to its SM (small)
position.
3. Slide
POWER switch to its ON position.
4. Check for sufficient airflow by pointing the probe tip toward the floor and
observing the red airflow ball in the
probe tip. It should be floating inside
the probe tip.
5. Allow two minutes for the sensor to
warm up; the flashing probe light and
sound indicator will idle at 2–3 clicks
per second.
6. Test operation by quickly touching
the top of the
ENCE bottle (make sure sticky label is
CALIBRATION REFER-
removed). The unit should respond
with a rapid flash rate and sound verifying correct operation and optimum
sensitivity for detecting all refrigerant
leaks. During product life, if unit does
not respond correctly, see Section
Sensor Heater Adjustment.
Setting the Sensitivity
Small (SM) switch position is the
highest sensitivity. The unit will indicate 0.1 ounce or greater leak rates
and is used for fluorine based gases
like R134a and SF6. This position also
assures highest repeatability for locating
0.5 ounce or greater R134a leaks (per
SAE Std. J1627 moving probe test
conditions). It must always be used to
verify performance and calibration when
using the
CALIBRATION REFERENCE bottle.
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Medium (MED) position sensitivity is
used for chlorine and chlorine based
gases like R12, R22, R123, etc. and will
indicate a 0.1 ounce per year or greater
leak rate. This position supports finding
a 0.5 ounce or greater leak during the
moving probe test as defined in SAE
J1627. It is also useful for locating larger
R134a leaks of one ounce or greater.
Large (LARGE) position is used to zero
in on gross leaks of any refrigerant. If
a large leak is suspected, set mode
switch to
MANUAL. Adjust BALANCE knob
for a sound of 2–3 ticks per second
and slowly approach the test equipment/area. Continue to turn the
BALANCE
knob counterclockwise as necessary to
maintain 2–3 ticks per second. As you
approach the vehicle or equipment, the
gas concentration will increase, causing
an alarm condition. Each time an alarm
occurs, re-adjust the
BALANCE control.
Continue this process until the leak is
located. Blowing out the test site with
shop air may enable you to locate the
leak more quickly.
Note: After a large leak is located and
repaired, blow out the area again with
shop air, set the unit on the small leak
sensitivity and double check equipment
for small leaks.
Warning! Personal Injury Hazard.
Do not use the H10PA in an explosive or combustible atmosphere. The
ambient atmosphere is drawn through
the probe and through the sensor,
which operates at approximately
1472°F (800°C). The resulting hot
mixture of air and combustible gas
could explode.
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NOW…
YOU’RE READY TO FIND THE LEAK!
(You have a choice of two modes)
Auto Mode
This mode is preferred because the
unit effectively auto zeros to block out
background levels of refrigerants and
changes in background contamination.
This greatly reduces and/or eliminates
false alarms while retaining sensitivity
to quickly locate small or medium size
leaks. Pinpointing leaks in this mode
requires continuous probe movement.
(We recommend 2 inches per second
as specified in SAE J1627 and J1628).
If the probe remains on the leak the
unit will zero out the leak, going into
the idle 2–3 ticks/second condition.
Briefly moving the probe away from the
leak for 1–2 seconds permits the fast
auto recovery to re-establish sensitivity.
Returning to the leak site, the unit will
alarm again. The unit will reliably and
repeatedly pinpoint the leak with each
pass over the leak site.
If a large gross leak is present, the
auto zero circuit may reduce sensitivity
to an unacceptable level to find small
and medium sized leaks. If this condition
exists, the manual mode will enable you
to pinpoint the large leak. The manual
mode is also an effective means to
determine if a gross leak of any refrigerant exists prior to searching for leaks
(see Section Setting the Sensitivity).
Manual Mode
In the Manual Mode the auto zero
function is disabled, causing the unit
not to zero out the leak if the probe is
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