KHG Controller/Monitor Firmware Update

Below you will find the latest firmware updates and tools for your KH Guardian unit.  Always read and follow the instructions and guides prior to updating your firmware.  Not following the directions can potentially "brick" your unit and render it inoperable.  

KHG ControllerKHG Monitor

You Will Need

1. Download the firmware file to your computer.  DO NOT open or edit the .bin file with a text editor such as NotePad or MS-Word as it will render the file useless.

WARNING

Please be sure to install ONLY the correct firmware for your device.  Installing the wrong firmware on your device will render the device inoperable AND will void all warranties.

Enter Firmware Update Mode:

1. Login to your KHG local web interface page.  You can do this by typing your KHG's IP address and port on your browser.  (e.i. 192.168.1.20:8090)
2. Type in your password.  The default password is "Admin"
3. Click on the grayed out "ENG Mode ON" found immediately below the "SW Tube De-Gas" button
4. Click on "System Setup" button

Updating the Firmware

IMPORTANT:

Early versions of KHG do not allow for firmware update.  If your KHG does not have a "Firmware Update" section, you may have an early KHG version.  In this case (U.S. Customers ONLY), submit a ticket at http://www.coralvue.com/support to send your unit in for PCB upgrade.

1. Scroll down to "Firmware Update" section and click on "Select .BIN File"
2. Select and open the firmware file you previously downloaded.  (e.i. _V8FW.XXXX.bin)
3. Make sure that the CheckSum number on the KHG Firmware Update section matches the CheckSum number above.  If not, firmware file has been compromised and you should stop the update, download the firmware file again and recheck the CheckSum number.
4. Once confirmed that both CheckSum numbers match, click on "Upgrade"

While Upgrading

The webpage will show NO NOTIFICATIONS that the update is going on.  DO NOT close the browser window under any circumstances.  Check your KHG display monitor for upgrade status.  Once upgrade has reached 100%, please do the following:

1. Once upgrade status reaches 100%, your KHG will begin to beep.  At this point, disconnect the unit from power
2. Wait 10 seconds and then power up the unit again
3. The Upgrade process is now complete

Verify Firmware Version

1. Login to your KHG local web interface page.  You can do this by typing your KHG's IP address and port on your browser.  (e.i. 192.168.1.20:8090)
2. Type in your password.  The default password is "Admin"
3. Click on the grayed out "ENG Mode ON" found immediately below the "SW Tube De-Gas" button
4. Click on "System Setup" button
5. Scroll to right ABOVE "Firmware Update" section and check the Firmware number.  The firmware version should match the name of the firmware file.

Changelog

V8W.H6A8VD (09/18/2018)
–Multiple bug fixes

V8W.H6A8VC (08/15/2018)
–AC_ERR
–Multiple bug fixes

V8W.H6A8T (06/10/2018)
–LCD pH field will display *ERR* when unit experiences an error.
–During an error, LCD will display the latest dKH results instead of the last successful dKH measurement prior to the error.  
–Log Retry: If unit tests a second time due to the first test having unusual results, enter "0" to not record first test to log (Default).  Enter "1" to record the results of the first failed test.
–> or < 1.5 Alert : If the alkalinity obtained by the KHG deviate by 1.5 dKH from your desired dKH setting (“KH auto correction”).  Enter "0" to disable and "1" to enable alarm.  
–KH Doser Pump : user can set up which baking soda pump to use. 1 is Built-in baking soda pump (not available for "M" model), 1 is Kamoer step pump (available both for "C/M" model).
–C.R. suspend time: If the alkalinity obtained by the KHG exceed from your desired dKH setting ("KH auto correction"), After KHG restarts, suspension time (unit:minutes) required for the calcium reactor. Please note that this setting cannot be greater than Check intervals.
–Force reverse calibration: In field "REF.KH", enter the value you obtained from a 3rd party test kit and it will calibrate your KHG unit against it.  WARNING: This feature will work AFTER KHG has conducted 3 successful test without any errors (ERR) displayed on the LCD.  
–Firmware updates (Date & Time) will be added to the log.
–Multiple bug fixes

V8W.H6A8R (01/30/2018)
-The default IP can be changed from the LCD panel buttons
Remove power from KHG, Press and hold buttons 2 + 3 and replug in the power. KHG will beeps. Release  the buttons at this time, the default IP will be changed from 192.168.1.120 to 172.22.20.120, 172.22.20.120, 10.0.0.120, 10.0.0.120 and 92.168.1.120 sequentially.
-M.L.Q function failure.

V8W.H6A8L (11/30/2017)
-SW_Tube_De-Gas would run even when chamber was empty causing the unit to flash SW_ERR

V8FW.H6A8G (11/24/2017)
-Ability to increase "ADJ KH" range.
-Multiple bug fixes

V8FW.H6A8B (10/25/2017)
-Increases maximum dKH value to 12
-Second decimal value not displaying on screen when dKH above 10
-Multiple bug fixes

V8FW.H5F6M & V8FW.H5F6C (9/14/2017)
-Multiple bug fixes

V8PRO.H5F5 (5/22/2017)
-Unable to specify tank size