Troubleshooting - UNI-T UT336A Quick Start Manual

Notes:
a. The detection will also be ef fected by other pollutants, using dry cloth to cleanly
wipe and dry air to blow the leak area before the redetection to avoid any inaccuracy,
and then repeatedly detect to find the leak location.
b. Oil and dust is existed in most of leak conditions, we should prevent the probe
from contacting any pollutants, any moisture or other solvents
c. Following is for the obvious leak detection:
Firstly, use compressed air to blow and clean the potential leak area, and repeatedly
detect to locate the correct leak location. Secondly, move the probe to the
environment with fresh and clean air to reset, then put the probe to the surrounding
of leak location, moving probe slowly to locate the leak source.
d. Three main types of halogenated (Chlorine & Fluorine included) refrigerants of
the refrigerating system and containers can be detected by the device:
CFCs R11, R12, R13, R14, R15, R500, R502......
HCFCs R22, R123, R141,R142........
HFCs R134a, R125, R32, R410A......

7. Troubleshooting

Troubles Reasons
Depleted battery
Fail to enable the device
No response to the
Burn-in probe of sensor
known leak source
Humidity changed in the
False alarm but
atmospheric condition
no leak source
Replace a new one to ensure the high performance of probe after a long-time use.
Probe life is related with the using frequency and using condition, so it is hard to
estimate the replacing time of probe. It' s time to replace a probe when it is alarming
or unstable in the clean air.
Warning: Power off the device before replacing the probe to avoid the
electric shock caused from the probe.
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UT336A
Solutions
Replace the new battery
Replace a new
sensor probe
Press RESET button
to reset to zero
UT336A
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* The contents of this manual are subject to change without prior notice.
* Due to different batches, the materials and details of actual products may be
slightly different from the graphic information, please refer to the actual product
received. Experimental data provided in the page is from internal laboratory of
UNI-T, but it should not be a reference for customer to place orders. Any questions,
please contact the customer service, thanks!
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