Quick-Start Guide: MiniTest 300 Leak Detector
Start-up
PREPARATION
• Connect the radio transmitter.
• Screw the plug from the power supply pack to the MiniTest 300; connect mains
voltage.
• Remove the blank flange from the vacuum connection of the unit.
• Check vacuum connection flange to ensure it is clean.
• Connect the unit to the plant vacuum system.
SWITCHING ON THE UNIT
• Press the Power button on the remote control.
• After a few seconds the remote control establishes the wireless connection to the
MiniTest 300.
• The system must be evacuated in order to find leaks.
• Open the shut-off valve upstream of the vacuum connection on the MiniTest 300.
• Vacuum: Wait for vacuum
• Warm-up phase: Wait for heating
• The unit is ready for operation: READY TO START
Note:
• Wait for completion of the warm-up phase (ca. 30-60 min) before calibrating or
measuring.
DISPLAY
• Two measured value displays are available: Measurement mode and search mode
• Measurement mode Quantitative measurement
• Search mode Qualitative measurement
• The right key (toggle function) with the chart icon is used to switch from one mode to
the other.
Localizing leaks
LOCALIZING LEAKS WITH SEARCH MODE
• The search mode can be used to conduct a fast qualitative localization.
• The vertical white line represents the lower display limit.
• The colored point (green in the illustration) shows the currently active measuring
range.
• The magnifying glasses to the left and right of the bar can be used to move the
display limit.
• If the measuring signal becomes larger, the colored point moves to the right.
If the measured signal becomes smaller, the colored point moves to the left, as far as
the maximum zoom limit.
Note: The zoom areas to the left of the colored point are blocked and are symbolized
by crossed out points.
Measuring procedure in Search mode:
Comparison with reference leak:
1. Spray pin test leak (capillary leak) with helium.
2. Observe the helium signal until a maximum is perceptible.
3. Tap the bar between the magnifying glasses to reset the display limit based on the
current measured values.
IG0320BEN_A (0512)
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