The Ak100 controls the chemical feed using a technology known as "Proportional Feed", which reduces the amount of chemicals being fed as the measurement  approaches the desired value. Another advanced feature, one only found on the most expensive controllers, is delayed pH feed. The pH control will only feed when sanitizer feed has been off for a set time period. These features allow the AK100 to work with any type of sanitizer system, liquid chlorine, bromine, ozone, salt chlorine generators, chlorine feeders or others.

Most controllers that are marketed as controlling PPM are actually measuring ORP and calculating the PPM based on the pH. The reason for this is that the PPM electronics and sensor are much more expensive than ORP and advanced technology in measurement theory is needed to directly measure PPM. Acu-Trol has been developing this technology with our international dealers where accurate PPM control  is required by law.

The AK100 was designed to be easy to use and install without sacrificing any of the power our advanced technology offers. 

1.CLF||OFF/ON:Chlorine feed status, pressing the Select button will toggle the state of the delay for two minutes. Use this menu to manually turn the relay on and for testing the equipment. 

2.PLF||OFF/ON:pH feed status, pressing the Select button will toggle the state of the relay for one minute. Use this menu to manually turn the relay on and for testing the equipment. 

3.CCL||ppm: Chlorine calibration and the current ppm reading. This parameter is the ppm offset and should only be used to zero the reading when the sensor is placed in water with a ppm of zero. 

4.C9n||ppm: Chlorine gain and the current ppm reading. This parameter is multiplied with the actual measurement, ppm = (measurement – CCL) * C9n.  This calibration should be performed when the ppm is between 2 to 4 ppm. 

6.CON:time: Chlorine on time and the length of time in two second increments.  Use the up and down arrows to increase or decrease the length of feed time.  When the ppm is less than the setpoint the AK155 will be in a feed cycle, where the relay will be on for CON and then off for COF, repeating until the ppm reaches or is greater than the setpoint. The AK155 uses proportional feed and will automatically decrease CON based on how far below the setpoint the reading is. 

7.COF:time: Chlorine off time and the length of time in two second increments.  Use the up and down arrows to increase or decrease the length of feed off time. 

8.PON:time: pH on time and the length of time in two second increments. Use the up and down arrows to increase or decrease the length of feed time. The AK155 will perform pH feed based on the PON time and for the off time use the COF.  The pH relay will only be turned on before the CL  relay to ensure that they are never on at the same time. 

Advanced Features: Pressing Menu, Up and Select at the same time gains access to the following: 

1.CSt:Value: Chlorine setpoint and the current value. Use the up and down arrows to increase or decrease the setpoint. The AK155 will be in a feed cycle when the measurement is below the setpoint.  

2.PSt:Value: pH setpoint and the current value. Use the up and down arrows to increase or decrease the setoint. The AK155 will be in a feed cycle when the measurement is above the setpoint for acid control and will be in a feed cycle when the measurmeent is below the setpoint for base control.  

3.PH||Bse/Acd: Used to select either acid or base feed. Warning: Incorrect selection may cause damage or bodily harm. 

4.Ain||0 to 9: The number of rings that the modem will answer on. When set to 0 the modem will not answer. By using diferent numbers you may have more than 1 AK155 on the same line.