Yacht Devices YDBC-05, Руководство пользователя

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The core section of the connection cable must not be less than 0.2 sq. mm, with
the diameter of 0.5 mm. Cables of UTP 3, UTP 5, UTP 5e categories with the AWG-24
and AWG-22 labelling used for telephone lines and computer networks are suitable
for the role of a connection cable. When routing the cable, avoid powerful sources
of electromagnetic interference: motors, compressors, generators, electric pumps
and transmitting antennas.
If after the cable extension the Thermometer’s LED shines for two seconds with
small interruptions, this indicates absence of communication with the digital sensor
(see. Appendix A. Troubleshooting). In this case, check the connection cable
and joints. Note that in previous firmware versions (1.2x and 1.3x), Thermometer
shows a temperature of 290 °C in case of communication error; this behavior
was modified.