How to change the battery on HummBox RevG devices ?

HummBox RevG are devices with black housing like examples below:

HummBox 3in (Multiple sensor transmitter : pressure, soil humidity, ...)	HummBox Level (ultrasonic sensor)	HuumBox EVC (Electro Valve Controller)

HummBox revG device is IP68.  It has 10 screws, 4 big screws on the square corner and 6 small screws.

All the screws are important to keep the level of waterproofness. User should be careful not screwing to hardly which may impact the screw spinning.

/!\ GreenCityZen disclaims all responsability if the device is damaged during this operation, in particular in case of short circuit or incoming water inside the Hummbox.

1. Unplugged any external sensor plugged

2. Open the BOX carefully in a safe place (no water or high humidity rate, ...)

        >>> Use a manual screwdriver to carefully open the box (using a screwing machine may damage the device)

3. Unscrew the Battery slot and Remove the battery

4. Plug the external button & press it to release the remaining current

5. Change the dessicant bags (x2)

>>> https://www.amazon.fr/Sachets-D%C3%A9Shydratants-Silice-DECYC%C2%AE-Petit/dp/B077XWR65Q/ref=asc_df_B077XWR65Q/?tag=googshopfr-21&linkCode=df0&hvadid=255562832058&hvpos=&hvnetw=g&hvrand=12684094639999276601&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9055005&hvtargid=pla-420484514100&psc=1

>>> https://fr.rs-online.com/web/p/products/3888437/

6. Check the seal is still in good shape :

Pay attention when opening a device which has been exposed to water or dust outside, you may have some water and/or dust in the outside walls of the seal.

When opening the device, there may be some depression moving some small water droplets or dust inside the enclosure. You must then clean it properly before closing the Hummbox.

 

         ( If seal is not in good shape, please contact the HummBox support)

7. Put the new battery (see specific reference below) and screw the battery support in its slot  : 

 >>> reference of batteries to order:  https://www.tme.eu/fr/details/saft-lsh14/piles/saft/ls-h14/

Red Wire : + 

Black Wire : -

8. Close the BOX carefully, use a manual screwdriver to do so, with a specific attention on smalls screws

9. If Device doesn't start, press button 5 times, see reboot