Dvb01 User - Manual 'link'

Relay activates when voltage is above the upper limit and deactivates when it drops below the lower limit. F-04 (Window Mode - In): Relay activates only when the voltage is the upper and lower limits. F-05 (Window Mode - Out): Relay activates when the voltage is either the lower limit or the upper limit. 3. Programming Parameters The device uses four keys: Description Adjustable Range Function Selection F-01 to F-05 Threshold 1 (V1) 00.0V to 99.9V Threshold 2 (V2) 00.0V to 99.9V Voltage Calibration Flashing display for manual correction Pull-in Delay (T1) 0.0s to 99.9s Disconnect Delay (T2) 0.0s to 99.9s 4. How to Program Enter Setting Mode: Long press until "P-0" appears. Select Parameter: Short press to cycle through P-0 to P-5. Adjust Value: Short press to view the current value (digits will flash). Use to switch digits and to change the number. Save & Exit: After adjusting, short press to return to the parameter list. Long press to save all settings and return to normal operation. Class B Forums Voltage Relay Module (DVB01) User Manual - Class B Forums

| Button | Label | Function | |--------|-------|-----------| | POWER | Red | Standby (not full power-off) | | MENU | Menu | Main settings / installation | | EPG | Guide | Electronic Program Guide | | INFO | i | Channel & signal info | | SUB | Subtitle | Toggle subtitles | | AUDIO | Audio | Switch audio tracks | | FAV | Fav | Favorites list | | TTX | Text | Teletext | | PVR | (Red dot) | Record (if USB storage attached) | dvb01 user manual

No warning that a failed update can brick the unit. No guidance on verifying the correct file version. Many users download files from unofficial forums and end up with a non-functional remote layout. Relay activates when voltage is above the upper