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dclarkJul 29, 2025
What to do if Teledyne MX300 unit has stopped working and the LCD is displaying alphanumeric characters?
- Bbenjamin98Jul 29, 2025
The MX300 unit includes an electronic "watch dog" feature that monitors the internal circuitry for potential issues, which can cause the unit to become inoperable. This can be triggered by events like dropping the unit, poor battery connections, or radio frequency interference. To resolve this: * First, disconnect the batteries and check the contacts for any corrosion. Then, reconnect them. If the unit starts working correctly, calibrate it and reset the alarm values. * If that doesn't work, try using a new set of batteries. * Also, try moving the unit away from any sources of radio frequency interference. The sensor cable can act as an antenna, so repositioning it or changing its coiled length might help.
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