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AC_ERR = KH accelerator error

A.
B.
C.

6.

Please gently open the “Reaction Chamber” and check if the small white agitator is missing.
Please check if the pH probe are secured at proper depth.
Accelerator may be malfunctioned.  Please contact your dealer.

pH<ERR = pH reading low error

A.
B.
C.
D.
E.

F.

7.

This error message will occur if the pH reading is below 4.5.  Alarm will activate.
Please check if the pH probe is properly secured in the socket.
Please execute the pH probe calibration procedure.
Please gently open the “Reaction Chamber” and check if it is dry inside.
If the “Reaction Chamber” is dry, please check the water level sensor if it can move up and down 
freely.
If all settings are correct, please contact your dealer.

pH>ERR = pH reading high error

A.
B.
C.
D.

8.

This error message will occur if the pH reading is higher then 8.8.  Alarm will activate.
Please check if the pH probe is properly secured in the socket.
Please execute the pH probe calibration procedure.
If all settings are correct, please contact your dealer.

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4.

Additional User Instructions

1.

2.

3.

Upon initial assembly and installation, please make sure to perform 5 (five) dKH readings to ensure optimal 

performance and accuracy.

Upon using KHG, at any time if you wish to move KHG, you must use the "Purge Chamber" function to 
completely drain out all liquids in the Reaction Chamber.  Moreover, please detach and invert the Reaction 
Chamber from the unit and pat dry the insides with paper towel.  Failure to do so may cause the corrosive 
salt water to spill and may damage the parts of KHG.  In severe cases, the damage maybe permanent.

Only use KHG approved pH probe.  Non-approved pH probe would result inaccuracy.  If possible, please 
always have a spare pH probe at hands ready to use.  We recommend exchange the pH probe every three 
months, and perform pH4 and pH7 calibration every time at the exchange.  When removing a pH probe for 
storage, you must thoroughly clean the probe, pat dry the surface.  To store the pH probe, the glass bulb at 
the tip of the probe must be immersed in 3M potassium chloride solution.

User Manual

Summary of Contents for KHG

Page 1: ...WWW KHGUARDIAN CO M V8 0C Profashional Edition 2017 01 09...

Page 2: ......

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Page 4: ...ction Main Display KHG System Setup The Meaning of Log Field Error Message and Troubleshooting Additional User Instructions The KHG exterior features Main Control of KHG P1 P5 P1 P5 P7 P10 P10 P12 P1...

Page 5: ...bicarbonate solution should be added to the aquarium with the reference of the desired dKH target value aquarium total water volume and current testing value Then the controller dose in the solution...

Page 6: ...e sure the placement of KHG is level on the X Y and Z axis Complete levelling is crucial as to keep the sodium bicarbonate solution from dripping on the optical and electronical components before ente...

Page 7: ...eagent solution bottle Please insert the pH probe into pH 7 0 calibration solution of at least 1 5 cm deep Press and hold number 2 and number 4 buttons simultaneously for 3 second until you hear a bee...

Page 8: ...many times as out of the inlet tube Please click on the KS De Gas on your browser to purge air from your KHG reagent solution tube Please look into the observation hole Figure 6 until you see reagent...

Page 9: ...t be performed every time you intend to move the KHG It is crucial to purge reaction chamber to prevent solutions damaging the optical lens and other electronic components Failure to purge chamber cou...

Page 10: ...not use unless being instructed by a qualified KHG support staff ENG Mode OFF Advanced function only Do not use unless being instructed by a qualified KHG support staff Test KH doser Press to test if...

Page 11: ...between each KHG test Unit is minutes We recommend setting the intervals to 180 minutes You can shorten the testing interval time but that will also use up KH reagent solution faster No_SW_ERR This is...

Page 12: ...ntroller KHG not only monitors your tank alkalinity but with KH auto correction KHG will also actively maintain your desired dKH level Regardless if you normally maintain your tank alkalinity by kalkw...

Page 13: ...Save all settings above to the memory KHG will force reboot after new settings have been saved New PW Please enter new password Password allows maximum 8 characters include spaces numbers letters or...

Page 14: ...e Please gently open the Reaction Chamber and make sure the white water level sensor is freely movable up and down Sensor may be malfunctioned Please contact your dealer eg 10 07 15 07 49 W 131 0 AK 3...

Page 15: ...ensor may be malfunctioned Please contact your dealer KH ERR KH value high error A B C D E F 4 This error message indicates the tested value is 1 5dKH larger than the KH auto correction setting System...

Page 16: ...bration procedure If all settings are correct please contact your dealer Page12 4 Additional User Instructions 1 2 3 Upon initial assembly and installation please make sure to perform 5 five dKH readi...

Page 17: ...the factory supplied KHG reagents However the lack of preservatives may result in black color bacteria substances growing in the tubing From the test result of using KHG in the last 4 years these sub...

Page 18: ...mixing 65 grams of sodium bicarbonate powder per one liter of water Please keep the error tolerance to within 5 We would strongly recommend to keep KHG in a protected container away from saltwater sp...

Page 19: ...Press and hold buttons 2 4 for 3 seconds To KS_DS_Gas Press and hold buttons 1 2 for 3 seconds To SW_Tube De_Gas Press and hold buttons 1 3 for 3 seconds To Purge Chamber Press and hold buttons 3 4 fo...

Page 20: ...Contact SALES KHGUARDIAN COM SUPPORT KHGUARDIAN COM...

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