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Superior Signal Company LLC 

 

AccuTrak

 ®

 VPX-WR 

User’s Manual

 © 2015 

21

 

 

 

 
 

SPECIFICATIONS  for  VPX-WR 

 

 
 
Performance 
 
Sensitivity: 

-74 dB/V/

μ

bar 

Frequency Range, DND: 

20 kHz to 100 kHz 

Frequency Selection: 

Automatic, DND 

Frequency Range, Het: 

34 kHz to 42 kHz 

 
Power Requirements 

Battery: 

Rechargeable NiMH 

Average Charge Duration: 

8 hours of continuous use 

Average Charging Time: 

4 hours 

Low Battery Indicator: 

Flashing LED when 1 hour of use remains 

 
 
Physical 
 
 

Construction, Hard Anodized Aluminum Housing with padded grip 

 

Dimensions: 

Cylindrical 

Outer Diameter: 

1.75" (44.5mm) 

Length: 

10.254" (260mm) 

Weight: 

14 oz. (397gr.)  

Shipping Weight: 

8 lbs. 

 

Headset: 

High quality, Noise attenuating for use with a hard 
hat 

 
Carrying Case: 

Pressure molded plastic, compartmentalized, with 
locks 

 
Accessories: 

Contact Probe, Flexible Wave Guide, Nose Cone, 
Charger 

 

 
 

Specifications are subject to change without notice 

  

Содержание AccuTrak VPX-WR

Страница 1: ...Model VPX WR USER S MANUAL www SuperiorSignal com Superior Signal Company LLC 2015...

Страница 2: ...TIONS______________________________ 12 Steam Leaks SteamTraps Valves Internal Leaks in Hydraulic Systems___________________________ 13 Mechanical Vibrations Troubleshooting______________________ 14 Be...

Страница 3: ...ignal Once the signal has been captured the dominant frequency will be heard in the headset Leaks normally sound like a harsh hissing noise which ascends in pitch as you approach the source When you r...

Страница 4: ...tuning Power is provided by a unique Nickel Metal Hydride NiMH battery pack conditioned through a voltage regulator and supervised by a battery protector condition indicator The housing for all this t...

Страница 5: ...nsor horn shown in the figure above left houses the sensor and provides with the threads a mounting to attach the horn restrictor which is used to collimate the sound to narrow the field of view to he...

Страница 6: ...he instrument and push them together CAUTION Be VERY careful while wearing the headset around machinery The headset is also a hearing protector attenuating the background noise which can make you thin...

Страница 7: ...while the Het is always indicating the background noise Leave the vinyl protector on the horn to protect the edge from becoming deformed when bumping it This may save the horn threads if you drop it...

Страница 8: ...l Below this noise floor that you ve set and for a frequency band of 4kHz around 38kHz the heterodyne section will give you an indication that there may be something there to check as you pass a point...

Страница 9: ...spected area if the system permits it Air flowing through the water will generate bubbles which burst and create ultrasonic shock waves making it easier to detect Another technique that may be applied...

Страница 10: ...components These sounds differ from leaks because they are rhythmic i e they follow the engine motion unlike leaks which stay almost constant The same is true with mechanical vacuum pumps The nose con...

Страница 11: ...NG THE TOUCH PROBE IN THE NOSE CONE Insert the touch probe in the fitting in the horn restrictor and tighten the knurled nut This nut must not be loose because it will generate noise in the measuremen...

Страница 12: ...the alignment All 1 4 tubing type fittings from Swagelok will fit into the Nose Cone You can use tubing up to 15 long 5m Longer tubing lengths attenuate the sound The easiest way to make a wave guide...

Страница 13: ...obvious by the constant rushing sound within the trap There are a number of different types of traps which make different sounds during normal operation Thermostatic traps are the easiest to test sinc...

Страница 14: ...added sound and can be detrimental on the system itself This extra noise background may make it more difficult to find the leak Again pressurizing the system with nitrogen before fluid is introduced...

Страница 15: ...sound can be used to determine the lubrication condition of a bearing Lubricating and listening at the same time will tell you when to stop since the sound should decrease as you inject grease when s...

Страница 16: ...tes ultrasound which is then translated by the Het block and sent to the output of the VPX WR Please refer to your vibration analyzer s user manual for instructions as to how to configure its input pa...

Страница 17: ...f there is strong background noise Start testing new machines or new bearings first This will help you establish a base line in the amplitude and the nature of the harmonics present at the test point...

Страница 18: ...s CORONA Corona is a form of plasma current flow that is found around higher voltages like transmission lines It is invisible in the visible spectrum however under certain conditions a bluish glow can...

Страница 19: ...he red LED will go off Place the SG 2 in a tank hatch aircraft walk in cooler etc go to the other side and close the door or window or other cover and search with the VPX WR to find where you can hear...

Страница 20: ...he battery charge the battery supervisor will shut the instrument down This may happen during the detection of a leak which will require more power to be delivered to the headset thus causing the inst...

Страница 21: ...are at the sole discretion of Superior Signal Company LLC Maximum liability under any circumstance shall be limited to replacement of unsatisfactory product Recommendations and product information ar...

Страница 22: ...us use Average Charging Time 4 hours Low Battery Indicator Flashing LED when 1 hour of use remains Physical Construction Hard Anodized Aluminum Housing with padded grip Dimensions Cylindrical Outer Di...

Страница 23: ...amount of gas in cubic feet per minute or liters per minute Noise Any unwanted signal competing with the one of interest Reynolds number An index which shows if the flow is turbulent or not Numbers un...

Страница 24: ...Superior Signal Company LLC AccuTrak VPX WR User s Manual 2015 23 NOTES...

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