Operating Tips; Electrical Arcing; Electrical Corona - Bacharach Tru Pointe Ultra Operation And Maintenance Manual

Tru Pointe® Ultra

Operating Tips

1. If the test area is large, remove the nose cone. Without the nose cone the detec-
tion area of the Tru Pointe
2. If the leak is in a tight, or inaccessible area, use the supplied Wave Guide to deter-
mine the leak location. Longer sections of 1/4" tubing can be used at the expense
of sensitivity.
3. When searching for vacuum leaks, you may need to pressurize the system with
dry nitrogen to facilitate locating the leak under pressure.
4. Use as much pressure as permissible for the system. Increasing the pressure will
multiply fl ow through the same orifi ce, increasing the ultrasound created by the
leak.
5. Interference may be experienced from electronic ballasts, computer monitors, or
other electronic devices. Place your body between the source of the sound and
the leak point.

Electrical Arcing

Electrical arcing is an electric current fl ow in air and can be a very destructive and dangerous oc-
currence in electrical systems.
To search for electrical arcing, use the same methods described to search for airborne leaks, but
scan around switches and electrical panels.
NOTE: Electrical arcing sounds like frying, including the
occasional popping sound.
CAUTION! Observe all all safety precautions when
working around electrical equipment. Arcing can lead to
explosions.

Electrical Corona

Electrical corona is usually observed in higher voltage systems than electrical arcing. Corona
usually occurs in insulators, substations or transmission towers.
To search for electrical corona, use the same methods described to search for airborne leaks.
NOTE: Electrical corona sounds like frying or sizzling.
CAUTION! Observe all safety precautions when
working around electrical equipment.
6
Ultra increases from 15° to 90°.
®
Instruction 0028-9000