SONAPHONE
®
E
Operating Manual – Revision: 2.4 | 2020-11-17
Page 45 of 66
6.2 Structure-borne sound probe L61 for valve inspection
(oil and water resistant)
Death or serious injury possible.
Incorrect operation, damage to the
device as well as damage to accessories can impair the explosion
protection.
(1) When using the ultrasonic probe L61 in Ex zone 0, it must be
connected via the probe extension cable and the housing must be
connected to the local potential equalization. Solely the grounding set
supplied by SONOTEC
®
should be used for this purpose.
(2) Prevent friction and impact sparks that could occur, for
example, when the probe is dropped.
For connecting the grounding kit: see ‚7.3 Using the grounding kit‘!
The L61 probe for structure-borne ultrasound is especially suitable for the
determination of the ultrasonic value at defective and damaged fittings
(valves or gate valves). It is used for example to trace inner leaks, to
detect defects at the valve ball or the valve seat or to track errors at
rotating equipment.
Since the probe for structure-borne ultrasound is watertight, it can also be
used for ultrasonic inspections in moist environments or in water systems.
After the use, the probe must be dried.
