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Table of Contents
Summary of Contents for Electronic Design EN3023
- Page 1 Group 1 Controlled Environment Monitors Service Manual ( June 19 )
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Page 2: Table Of Contents
Procedure ............................8 Replacing Printed Circuit Board ......................8 Part Location Procedure ......................8 Exploded View ............................9 Display Unit PCB Layout and Schematics ....................10 Sensor Unit ............................11 Parts and Procedures ..........................11 Group 1 - EN3023 Electronic Design Realization... - Page 3 Replacing the Switch / LED ....................... 13 Part Location ..........................13 Procedure ............................13 Replacing Printed Circuit Board ......................14 Part Location ..........................14 Procedure ............................14 Exploded Views ............................. 15 Sensor Unit PCB Layout and Schematics....................16 Group 1 - EN3023 Electronic Design Realization...
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Page 4: Basics
Controlled Environment Monitors are designed to raise an alarm when surrounding parameters exceed pre-set thresholds. Unlike household sensors CEM is designed to work off the grid. This makes it suitable to be used for monitoring closed agricultural environments like propagators and green houses. Group 1 - EN3023 Electronic Design Realization... -
Page 5: Display Unit
Rubbing Alcohol and Cotton Swabs (for removing Hot glue) • Warning In this manual, graphics or photos are intended to help illustrate procedures or information only, and may show different levels of disassembly, board colours, configurations than your device Group 1 - EN3023 Electronic Design Realization... -
Page 6: Disassembly And Repair
3. Pry open* the top case by holding from the edges *Warning: DO NOT pull apart the top cover without removing the connectors 4. Disconnect the Keypad connector and LCD connector from the PCB Group 1 - EN3023 Electronic Design Realization... -
Page 7: Closing The Display Unit
Replacing the Keypad Part Location Procedure 1. Open up the Display unit (See Opening the Display Unit) 2. Use the Razor Knife to peel off the Keypad 3. Pull out the keypad and Ribbon Group 1 - EN3023 Electronic Design Realization... -
Page 8: Replacing The Buzzer
1. Open up the Display unit (See Opening the Display Unit) 2. Disconnect the SD Card Reader connector 3. Use Rubbing Alcohol to remove the glue holding the SD Card Reader in place Group 1 - EN3023 Electronic Design Realization... -
Page 9: Replacing The Switch / Leds
Pull out the PCB taking note of the orientation Place new PCB in the correct orientation Insert the screws and fix the PCB. Reconnect all the connectors Close the Display Unit (See Closing the Display Unit) Group 1 - EN3023 Electronic Design Realization... -
Page 10: Exploded View
Exploded View Group 1 - EN3023 Electronic Design Realization... -
Page 11: Display Unit Pcb Layout And Schematics
Display Unit PCB Layout and Schematics Group 1 - EN3023 Electronic Design Realization... -
Page 12: Sensor Unit
Putty knife (922-6761),1.5 inch (38 mm), flexible blade Warning In this manual, graphics or photos are intended to help illustrate procedures or information only, and may show different levels of disassembly, board colors, configurations than your device Group 1 - EN3023 Electronic Design Realization... -
Page 13: Disassembly And Repair
7. Slide in the battery cover and lock it in place by rotating the battery cover lock Accessing Internal Components 1. Remove the battery (See Replacing Battery) 2. Remove the 2 screws from each side 3. Pry open the top case by holding from the edges Group 1 - EN3023 Electronic Design Realization... -
Page 14: Replacing The Humidity Sensor / Light Sensor
3. Press firmly on the Switch / LED and pop it out 4. Pop in the new Switch / LED 5. Reconnect the Switch / LED connector 6. Close the Sensor Unit (See Closing the Sensor Unit) Group 1 - EN3023 Electronic Design Realization... -
Page 15: Replacing Printed Circuit Board
4. Pull out the PCB taking note of the orientation 5. Place new PCB in the correct orientation 6. Insert the screws and fix the PCB. 7. Reconnect all the connectors 8. Close the Sensor Unit (See Closing the Sensor Unit) Group 1 - EN3023 Electronic Design Realization... -
Page 16: Exploded Views
Exploded Views Group 1 - EN3023 Electronic Design Realization... -
Page 17: Sensor Unit Pcb Layout And Schematics
Sensor Unit PCB Layout and Schematics Group 1 - EN3023 Electronic Design Realization...
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