-03-
Control Panel
-14-
ENTER
CAL
ALARM
RECALL
VEL
DEL
1.4 Control Panel
-- ON/OFF
-- Alarm set-up/Data recall
-- Velocity set-up/ Select /
Stored data delect
-- Enter / Calibration
-- Velocity / Thickness /
Alarm adjust
-- Velocity / Thickness /
Alarm adjust and Back light ON/OFF
ENTER
CAL
ALARM
RECALL
VEL
DEL
5.6 Multilayer / composite material
It is impossible to read out the thickness of the uncoupled mult-
-ilayer for the ultrasonic wave can not go through the uncoupled
space. Further more, the sonic wave cannot travel in the comp-
-osite material at an even speed, so ultrasonic reflect principle
cannot be applied to measure the multilayer/composite material.
5.7 Influence from the oxidized surface
For some metals, such as aluminum a layer of oxide being
generated on their surface. The oxidized layer combined with
the substrate tightly, but the sonic wave travel within 2 different
material which will lead to error reading, the more oxidized layer
the reading will be more tolerant. Please calibrated the unit with
the sample block that pick up along the hardware to be measured,
and obtain the thick of sample block by using micrometer.
5.8 Abnormal reading
A seasoned operator should be capable to distinguish the
abnormal reading, practically result from rusting, erosive recess
surface / incorrect calibrate sample block/ the inner flaw of
material.
5.9 Choose and using coupling agent
Coupling agent serves the high frequency ultrasonic wave tran-
-smitting between the transducer to the hardware. Choose inco-
-rrect agent or wrong operation man cause error or poor coupling
which lead to failure of measuring. The coupling agent should
be used in proper way, typiccally, a single droplet of agent is
sufficient.
It is important to use proper coupling agent, low viscosity
agent(the provided agent / machining oil) is suitable for smooth
surface. For rough / veritcal / aluminum surface, high viscosity
agent like glycerin and lubrication grease is applicable. All kinds
of coupling agent is available in local market, you can buy it form
local distributor as well.
Auto calibration to assure the accuracy
Sound velocity measurement: with a given thickness
to measure the sound velocity to improve accuracy
12 sound velocities for different material
Coupling status indication
12 thickness measurement data store and recall
Thickness alarm setup
Back light function
Low battery indication
Auto power off
1.5Features and Functions
