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参数资料
| 型号： | 750A |
| 厂商： | TPI (Test Products Int) |
| 文件页数： | 2/2页 |
| 文件大小： | 0K |
| 描述： | DETECTOR REFRIGERATION LEAK |
| 标准包装： | 1 |
| 系列： | 700 |
| 类型： | 泄漏检测器，制冷 |
| 包括： | 电池，外壳 |
750a, 753, 755 Refrigeration Leak Detectors
FAQ
TECHNICAL
SPECIFICATIONS
AND
ACCESSORIES
SPECIFICATIONS
Features and Functions 750a
Sensitivity in Ounces Per Year
R22 or R134a 0.3
Pump NA
Scan Mode with Switchable Yes
High/Low Sensitivity
Sensor Type Corona discharge
Spare Sensor Included Yes
Built-in Alarm No
Operation Thumb wheel
753
0.2
Yes
Yes
AIT micro tip
Yes
No
Puch Button
755
0.1
Powerful diaghram
Yes
AIT micro tip
Yes
Yes
Puch Button
RLD
Will TPI refrigerant leak detectors pick up the
new 410A PURON refrigerants?
Yes, all of the 700 series refrigeation leak
detectors pick up current refrigerants and
blends, including 404A and 410A (PURON).
What is the advantage of the AIT micro tip
Digital
Multimeters ?
Clamp Meters ?
Hand-held
Gooseneck Handle Length 16”
Adjustable Tic Rate Yes
Indication of Leak Audible and
flashing LED
Battery Included Yes, 2 C-cell
Standard Carrying Case A700 Soft pouch
Optional Accessories
16” 16”
Yes Digitally controlled
Audible and Audible and
flashing LED flashing LED
Yes, 2 C-cell Yes, 2 C-cell
A700 Soft pouch A755 Soft carrying case
with shoulder strap
A713 0.5 ounce per year test vial
used in the 753 and 755?
The Advanced Ionization Technology (AIT)
micro tip provides increased stability over a
standard corona discharge tip. This enables the
use of an internal pump to draw the sample
across the sensor, increasing overall sensitivity
and response of the 753 and 755 detectors.
Oscilloscopes ?
Refrigerant &
Combustible Gas
Leak Detectors ?
Temperature
Testers ? BNC
Coax Cable ?
Connectors ?
Test Leads ?
Accessories
Test Products
International, Inc.
Headquarters:
9615 SW Allen Blvd.
Beaverton, OR 97005
USA
503-520-9197
Fax: 503-520-1225
email:
info@tpi-the value leader.com
Test Products
International, Ltd.
342 Bronte St. South
Unit 9
Milton, Ontario L9T
5B7
Canada
905-693-8558
Fax: 905-693-0888
email:
info@tpicanada.com
Test Products
International UK Ltd.
Longley House, East Park
Crawley, West Sussex
RH10 6AP England
Tel: +44 (0)1293 561212
Fax: +44 (0)1293813465
A710 Earphone
A712 Sensor for the 750a
A721 Sensor for the 753 & 755
Distributed By:
To learn about the entire
line of TPI products visit:
www.tpi-thevalueleader.com
The 753 and 755 both use AIT micro tips and
have pumps. Why is the 755 more sensitive?
The 753 uses a standard duty pump to pull the
sample at a medium rate across the sensor. The
755 uses a heavy duty diaphragm pump to pull
the sample at a fast rate across the sensor. The
difference in sample rate makes the 755 more
sensitive.
Should I buy a thumb wheel "tic" adjust or
push button "tic" adjust?
The thumb wheel gives you a manual
adjustment and the push button adjusts to
preset levels. Both are easy to use and work
equally well. It's simply a matter of personal
preference.
Why would I want a pump on my
refrigeration leak detector?
Generally, refrigeration leak detectors with
pumps respond and clear faster as you enter or
leave the leak area. This is most important
when locating small leaks.
I have a hard time finding a leak when on a
rooftop in windy conditions. Will I be able to
find a leak in the conditions with your
refrigerant leak detector?
Always remember that the refrigerant will travel
with the wind. Position yourself down wind
and work your way "up stream" in order to trace
down a leak. The harder the wind is blowing,
the more the concentration of refrigerant will
be diluted in the air. It is difficult to find these
leaks, but it can be done.
Is there a way to determine how many parts
per million (ppm) a leak of 0.1 ounce per year
(oz/yr) is?
A leak of 134a refrigerant measuring 0.1 oz/yr is
equivalent to approximately 380 to 400ppm. A
leak measuring 0.2oz/yr is equivalent to
approximately 760 to 800ppm.
Can any TPI refrigerant leak detectors to be
used to test for SF6?
Sulfer hexafluoride (SF6) is used in high voltage
insulation as found in high voltage lines and
circuit breakers. SF6 is toxic and emitted into
the air when high voltage insulation begins to
degrade. The 755 will detect SF6 at a level of
750ppm or higher.
Is there anything I can do to extend the life of
the sensor?
Even though the sensors are very durable, you
can extend the sensor life of your leak detector
by press fitting a ?" long piece of vinyl tubing
onto the sensor tip. This will help prevent
contact us@tpieurope.com P RLD-1105
Copyright ? 2005 Test Products International, Inc.
foreign material from getting into the sensor
during tests. Clean or replace the tube regularly.
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