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Leak Detector Refrigerant (750) Tpi
[TPI 750]
$141.27
Leak Detector Refrigerant (750) Tpi
Click to enlarge

750 Tpi Refrigerant Leak Detector

 

The 750a features 400 hour sensor life under normal use and can detect leaks as small as 0.2 ounces per year (R134a / R22)

 

Sensitivity 0.2 oz /yr (R22 / R134a)
Pump Driven No
Scan Mode with High/Low Sensitivity Yes
Sensor Type Corona Discharge
Spare Sensor Included Yes
Built-in Alarm No
Operation Thumb Wheel
Goose Neck Length 16”
Adjustable Tic Rate Yes
Leak Indication Audible and Visual
Battery 1.5V “C” (2)
Carrying Case Soft Pouch

 

Check for leaks in refrigeration systems
Test for leaks in air conditioning systems and cooling units
Find leaks in automotive air conditioning systems

 

Even though the sensors are very durable, you can extend the sensor life of your leak detector. Simply fit a ½" long piece of vinyl tubing onto the sensor tip. This will help prevent foreign material from getting into the sensor during tests. Clean or replace the tube regularly.

 

Will TPI refrigerant leak detectors pick up the new 410A PURON refrigerants?

Yes, all of the 700 series refrigeration leak detectors pick up current refrigerants and blends, including 404A and 410A (PURON).

What is the advantage of the AIT micro tipused in the 753 and 755?

The Advanced Ionization Technology (AIT) micro tip provides increased stability over astandard 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.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 top reset 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 winda nd 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 partsper 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 beused 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 ½" long piece of vinyl tubing onto the sensor tip. This will help prevent foreign material from getting into the sensor during tests. Clean or replace the tube regularly.

 

This product was added to our catalog on Wednesday 04 November, 2009.
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