5.2 Measuring Methods
1. Single-point Measurement
Using the probe to measure a random point on the surface of the object,
the reading displayed is the thickness value.
2. Multiple-point Measurement
When the reading is unstable, measuring several times within a circle
with a certain point as center and 30mm as diameter, the thinnest
reading is the thickness value.
3. CONTINUOUS MEASUREMENT
Taking continuous measurements along a specified path at intervals of
5mm or less according to the single measurement method, the thinnest
reading is the thickness value.
6. Care and Maintenance
6.1 Power Source Inspection
When the instrument can not start up, it should be changed the battery
firstly.
The steps of changing batteries are as follow: 0
1.Turn off the gauge.
2. Loosen the screws on the back of the units and remove the battery
cover.
3. Take out the batteries and replaces with new ones. Pay careful
attention to polarity.
Attention: When not using the gauge for extended periods of time,
please remove batteries to prevent any leakage or corrosion.
6.2 Considerations
1. Please be cautious of the zero block
’
s getting rust as couplant will be
spread on the surface of it when calibrating the gauge. After using,
clean the zero block. Avoid dripping sweat on the gauge in high
temperature. Some grease spreading on the surface of zero block is
useful to avoid rusting if the gauge will be spared for long. Wipe the
grease out when reusing.
2. Be sure to avoid any caustic liquid such as alcohol or viscous fluids to
prevent corrosion to the cover and the display window, clean with water
only.
3. Avoid scratching the surface of the probe. A worn probe will cause
unstable readings.
6.3 Maintenance
Contact with the maintaining department of our company if the following
problems appears:
1. Components damage and the gauge fail to measure.
2. The display of the screen is disordered.
3. The measuring error is abnormally big in normal situation.
4. Keyboard operating is disordered or keyboard doesn
’
t work.
As the PM-5 series ultrasonic thickness gauge is high-tech product, the
maintaining work should be made by professional operator and please
avoid self-acting operations.
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