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7

Locating Leaks

NOTE:

Bumping the accessory probe or nose piece into objects while seeking 
leaks will cause false alarms. Leaks will be indicated by a beeping alarm 
and flashing indicators. Disregard occasional short alarms.

WARNING

Always keep clear of hot and/or moving engine and machinery 
parts. Damage or injury could result.

1. Long press the power button to turn Whisper On/Off. The Battery indicator will 

illuminate while Whisper is On.

NOTE:

If the Battery indicator flashes, the batteries are low and should be 

replaced.

2. Press the power button briefly to enable/disable the laser pointer feature (if 

equipped). This feature allows for easier and more accurate location of a leak 
site. See 

“Laser Pointer Feature” 

for more information.

3. Point Whisper in the direction of the suspected leak and scan the area by 

making a slow “X” (a vertical and horizontal type sweeping motion) while 
keeping the nose piece (or rubber extension probe) pointed in the general 
direction of the suspected leak.

4. If you are using Whisper without headphones, it will beep when an ultrasonic 

disturbance is detected. If you are using headphones, Whisper will make a 
variety of different noises due to its heterodyne feature. (See 

"Heterodyne 

Feature"

 for more information.) To isolate the ultrasonic disturbance, gradually 

decrease sensitivity by slowly dragging your finger down the touch pad until the 
beeping stops. The sensitivity level will be indicated briefly by the number of 
illuminated indicators next to the touch pad.

5. Move closer to the suspected leak, continuing the sweeping pattern and 

narrowing the range of the sweep by making smaller patterns until beeping 
resumes. This will lead to the location of the disturbance. To narrow the scan 
area, attach the flexible rubber extension to the probe and repeat step 3.

6. Repair all leaks as located and repeat scan.

Summary of Contents for WHISPER

Page 1: ...O P E R A T I N G M A N U A L Whisper Ultrasonic Leak Detector ...

Page 2: ...ety requirements for electrical equipment for measurement control and laboratory use General requirements IEC 60825 1 2014 Safety of Laser Products Part 1 Equipment Classification and requirements Emissions CISPR 11 EN 55011 2009 Emission standard for industrial scientific A1 2010 and medical ISM radio RF equipment Class B Immunity EN 61326 1 2013 Edition 2 0 EMC Measurement Control Laboratory Equ...

Page 3: ...ardous and damaging to eyes Never aim a laser pointer anywhere at or near any person or animal Laser pointers are designed to point at inanimate objects only In some states and provinces it is illegal to aim a laser pointer at a law enforcement officer or any other person The purchaser user is responsible for ensuring that his or her use of the laser pointer conforms to any local laws Do not point...

Page 4: ...rough a 0 004 in 0 01 cm diameter orifice at 5 0 psig from a 12 in 30 5 cm distance Usage Indoor or Outdoor Operating Temperature Range 32 F to 122 F 0 C to 50 C may be operated for a limited time in lower temperature environments Storage Temperature Range 14 F to 140 F 10 C to 60 C Humidity 85 RH NC Max Altitude 6500 ft 2000 m Power Supply 2 D cell alkaline batteries Battery Life with laser off A...

Page 5: ...ating sources of ultrasonic disturbances created by gases liquids or solids Whisper has different ways of indicating these disturbances When used without headphones Whisper s indicators will illuminate and the unit will beep in response to sources of ultrasonic noise When headphones are plugged in Whisper s heterodyne feature is enabled bringing ultrasonic frequencies to a range audible to the hum...

Page 6: ... noise Drag your finger downward on the sensitivity touch pad to reduce sensitivity in response to an increase in environmental noise Many variables can affect the amount of ultrasound generated by the leakage of gas through an orifice Such factors include the pressure vacuum relative to the surrounding environment how smooth the edges of the orifice are the diameter of the orifice Whisper s dista...

Page 7: ... a slow X a vertical and horizontal type sweeping motion while keeping the nose piece or rubber extension probe pointed in the general direction of the suspected leak 4 If you are using Whisper without headphones it will beep when an ultrasonic disturbance is detected If you are using headphones Whisper will make a variety of different noises due to its heterodyne feature See Heterodyne Feature fo...

Page 8: ...pointer at any person or animal High Noise Environments In noisy environments it may be necessary to tune out unwanted signals from other areas in close proximity to where you are scanning for leaks Begin by pushing the rubber extension probe over the nose piece When the extension is attached Whisper s sensing angle is reduced increasing the directional capability and reducing the effects of the a...

Page 9: ... other moving parts Always use extreme caution when using the contact probe around machinery Whisper Transmitter Accessory if equipped Whisper Transmitter is an accessory which can be used with the Whisper Ultrasonic Leak Detector to locate leaks in walk in coolers freezers wall and ceiling joints around doors windows body seals rubber moldings ducts etc Whisper Transmitter produces the frequency ...

Page 10: ...as power cells In addition INFICON does not warrant any instrument that has been subjected to misuse negligence or accident or has been repaired or altered by anyone other than INFICON INFICON s liability is limited to instruments returned to INFICON transportation prepaid not later than thirty 30 days after the warranty period expires and which INFICON judges to have malfunctioned because of defe...

Page 11: ......

Page 12: ...TWO TECHNOLOGY PLACE EAST SYRACUSE NY 13057 9714 USA Phone 1 800 344 3304 Fax 315 437 3803 E Mail service tools inficon com www inficonservicetools com 2017 INFICON 074 504 P1D ...

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