mvip@mitech-ndt.com
power off state. The main unit and the display is switched off and consumes almost no energy.
Pressing any key will stop the unit entering power off state while it prompts out “Idle Timeout!” and
return back to run state.
The change from run state to standby state is controlled by Display standby delay setting. The
time delay can be configured by the user in the Display Standby Delay dialog box. The main unit
can be reset to run state by any user activity while in standby state.
5 Operations
5.1 Setting the Work Mode
Often times users and inspectors in the field are faced with coated materials such as pipes and
tanks. Typically inspectors will need to remove the paint or coating prior to measuring, or allow for
some fixed amount of error introduced by the paint or coating thickness and velocity.
The error can be eliminated with this gauge by using a special Echo-Echo mode to perform
measurements for applications such as this. The gauge gives you this feature in a simple way
eliminating the need to remove the paint or coating.
To switch between P-E mode
and E-E mode, press
in
the Test Settings dialog.
5.2 Probe Selection
Be sure to set the right probe model to the instrument. Otherwise, there will be erroneous.
In the Probe Model dialog,
Use the
key and the
key to scroll to the probe
model currently being used.
Finally press
or F3 to
confirm the selection. Or press
to cancel and exit.
5.3 Perform Probe Zero
Note: Probe Zero operation applies only to Pulse-Echo mode. Do not perform Probe Zero in
Echo-Echo mode.
The
key is used to “zero” the instrument in much the same way that a mechanical
micrometer is zeroed. If the gauge is not zeroed correctly, all the measurements that the gauge
makes may be in error by some fixed value. When the instrument is “zeroed”, this fixed error value
is measured and automatically corrected for all subsequent measurements. The instrument may
be “zeroed” by performing the following procedure.:
1 Plug the transducer into the instrument. Make sure that the connectors are fully engaged.
Check that the wearface of the transducer is clean and free of any debris.
2 Press the
key to
activate the probe zero
mode, as right figure.
3 Apply a single droplet of
ultrasonic couplant to the
face
of
the
metal
probe-disc.
6.
4 Press the transducer against the probe disc, making sure that the transducer sits flat against
the surface.