VMI VIBER X4, Manual, Page: 41 / 58

Vibration Measurement Instruments
Temperature
In the Temperature menu you can, for example, measure the bearing housing tem-
perature (or any other surface temperature) with the built-in infrared temperature
sensor.
Emissivity
Set the coefficient for surface reflection factor (Emissivity factor) using a check
via a contact probe (the table with emissivity factors is also included in the instru-
ment’s context sensitive help menu).
It is very difficult to get an accurate temperature reading on untreated metals. A
coating such as paint, oil or emission adhesive tape applied to the object will con -
siderably improve the accuracy of the measurement.
NOTE Incorrect setting of the emissivity factor can lead to considerable errors in
themeasured temperature.
Measure Temperature
Direct the IR temperature transducer towards the surface you want to measure.
A red laser dot will guide you.
Keep a distance of approximately 200-500 mm (8-20 inches) between the instru -
ment and the object. Reduce the distance between the object and the instrument in
accordance with the surface size.
The value of the temperature measurement is shown at the top. A bar on the right
of the value indicates the measurement stability.
On the lower part of the of the screen details are shown regarding:
• Emissivity factor
• Averaging
During live measurements you can press:
•
F1
Change units C or F
• F3 Enter the settings menu
Temperature Measurement Settings
When measuring temperature, you can enter the settings menu by clicking F3. The
instrument will display the settings menu where the following parameters can be
set:
• Show unit Celsius or Fahrenheit
•
Emissivity factor
see above
• Averaging Disabled, Linear or smart
• Number of Averages 1, 2, 4, 8, 16, 32
• Set Default F3 Reset settings to default
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