CLAS AC 5028 Handmatig - Pagina 9

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AC 5028

enclosed environment to be evaluated. (If the space of the enclosed environment is large, place the tone generator

near the suspect area of the exterior of the enclosed environment, and point its emitting opening to this suspect

area). Make sure that you have enclosed the environment to be envaluated, then turn on the receiver and sweep

it around the suspect area to check the leakproofness.

SCANNING TECHNIQUES

Using LED Graph on Receiver and/or Headphone

For Locating Leaks

The ultrasonic signal's intensity is indicated through the LED graph and/or volume of the headphone, so you can

locate the leak according to the LED graph indication and/or the volume of the headphone. Decrease the volume

of the headphone as you get closer to the leak. When the sound gets louder, repeat the process until you have

pinpointed the location. Please note that the volume control is independent of the intensity indication of the LED

display during an inspection.

For slight leaks, the LED bar graph may not move up from the rst position. In this situation, use the headphone to

locate the leak as described above.

Using Air or Contact Probe

According to the type of inspection, use the air or contact probe to optimize the response of the Reveiver. The air

probe is best for detecting ultrasounds associated with a pressure leak or an electrical corona. The contact probe

is best for detecting the ultrasounds generated from within a casing such as in a gear, bearing, valve, steam trap

housing, and etc.

CHARACTERISTICS

Battery: 9V battery, 6F22 or equivalent, 2 pieces (one for Receiver and one for Tone Generator)

Frequency Response: 36000Hz to 44000Hz

Operating Environment: Temperature: 0°C to 40°C

Relative Humidity: < 75%RH

Storage Environment: Temperature: -10°C to 50°C

Relative Humidity: < 85%RH

Size: Tone Generator: 176×84×35mm

Receiver: 170×84×36mm

Weight: Tone Generator: about 156g (including battery)

Receiver: about 183g (including battery)

Both the Receiver and Tone Generator use a 9V battery each. Alkaline batteries are required. When replacing

battery, do not to strain or pinch wires. Always remove the battery during a period of long storage.

1. This manual is subject to change without notice.

2. Our company will not take the other responsibilities for any loss.

3. The contents of this manual can not be used as the reason to use the meter for any special application.

ELECTRONIC STETHOSCOPE LEAK DETECTOR