Index  >> Electric & Electronic Materials  >> Micom Liquid Feeder Series  >> CS077-1               ．CS072A-1         ．CS072A-2         ．CS072A-3         ．CS072A-4         ．CS072B-1         ．CS072B-2         ．CS077-1         ．CS077-2      Micom Liquid Feeder Series － Design for Property     CS077-1     Operation Manual Digital pH Controller   ﹝With HI/LO Action Optional﹞       Feature 1.AC100 - 240V full-voltage. 2.HI／LO options. 3.BNC connector be suitable for every electrode. 4.A rack attached to body can be hanged on the tank. General Specification Model CS077-1 Power supply AC100V ∼ 240V 50／60 Hz Measurement 0pH ∼ 14pH Resolution 0.01 pH Accuracy at 25°C ±﹝0.1%+ 2 digits﹞ after calibrating Impedance ohms Set Range 3.5pH ∼ 10.5 pH Calibration Knob External pH7 ﹝CAL.﹞ and pH4 ／ pH10﹝SLOPE﹞ Relay Contact 5A for 240VAC Control Output Voltage Same as plug in AC voltage Display 0.56" LED,digits Operating Temperature 0°C ∼ 50°C ﹝32°F ∼ 122°F﹞ Operating Humidity Max. 90% Power Consumption Approx. 2 watts Dimension 150 x 85 x 40 mm ﹝5.9 x 3.4 x 1.6 inch﹞ Standard Accessories Instruction Manual, Adjustment Sticker, Instrument Holder, pH4, pH7 calibrating buffer each one     pH electrode input BNC terminal can only connect with pH electrode, it is not allowed to connect with any other electrode. Front Panel Description 1.Display. 2.pH7 calibrate adjustment knob. 3.pH4 calibrate adjustment knob. 4.Set adjustment knob. 5.Indicator of output in action. 6.pH／SET function switchr. 7.HI／LO action function switch. 8.electrode BNC input terminal. 9.Control output socket   ﹝Normal Open﹞. 10.Power plug. Operation ﹝Calibration﹞ 1.   Connecting AC power supply. 2.   Connecting the pH electrode into the pH input terminal socket. 3.   Turn the pH／SET switch to "pH" position. 4.   Put the pH electrode into the standard buffer solution pH7.00. Waiting a few seconds for stable reading and adjust the "pH7" knob until the display reading is exact on 7.00. Then take away the pH electrode from buffer solution, and clean the electrode with distilled water. 5.   Put the pH electrode into the standard buffer solution pH4.01, Waiting for a few seconds for stable reading and adjust the "pH4" knob until the display reading is exact on the buffer 4.01. ﹝You also can calibrate pH10.00 by using the buffer solution pH10.00 instead of pH4.00 buffer solution.﹞ ﹝Make sure the step 4 to 5 are carried out when use a new pH electrode.﹞ 6.   After calibrating the pH electrode, put the electrode into the water of tank. Turn the pH／SET function switch to “SET” position to adjust the setting point. 7.   Adjust the "SET" knob until the display reading exact meet your requirement. Slide the pH／SET function switch to "pH" position for measuring. ﹝Slide the HI／LO switch to "HI" position will switch on the output control when pH measuring value goes above the setting value. Slide the HI／LO switch to "LO" position will switch on the output control when pH measuring value goes below the set value.﹞ Instruction For Cleaning & Maintenance 1.   The immersed level for electrode should not be higher than the electrode cap. ﹝When use the refillable electrode, the level should be lower than filling open to avoid the water entering into the open and cause damage.﹞ It had better cleaning the pH electrode sensor with soft brush and calibrating the pH electrode every 2 ∼ 3 weeks to keep the test accuracy. Please keep the electrode in the storage bottle with 3M KCL buffer ﹝or standard buffer solution pH4.0﹞ solution, the crystallization is normal for the keeping. 2.   pH electrode is accurate glass product, please do not knock it, and do not use finger, cloth and alcohol to clean it to avoid the damage. 3.   There is protection "dead band" which will delay to switch on output control when the pH measuring value goes above 3 ∼ 5 digits of the set value. The output control will switch off when the pH measuring value goes below 3 ∼ 5 digits of the set value. (HI／LO switch in "HI" position.﹞ 4.   The output control will automatically turned off when slide the pH／SET function is switched in "SET" position to adjust the setting valve. 5.   Indoor uses only. Why Should We Know pH Range pH value shows the acid or alkaline state of water (pH value equals 7 is neutral, it is alkaline as pH value is greater than 7, and acid as pH value is less than 7), most of the fish can adapt to life in water around pH =7, but many species have special water preferences. Such as: species of pH < 7：Discus, Amazon cardinals, preferences for pH=6.0 to                                 6.5. species of pH > 7：Marine fish preferences for pH＝8.4 and African                                 cichlids preferences for pH 7.5 to 8.0. ※ The Right pH Range Keep The Fish Right！ What To Do As pH Range Is Too Low The pH range of water should be shifted up, the methods of adjustment you can take: Use coral gravels substrate, anion exchange resin, add additives of powder, solution or tablets which can shift pH、KH and GH range up. What To Do As pH Range Is Too High The pH range in water should be shifted down, the methods of adjustment you can take: Use weak-acid gravels substrate, cation exchange resin and higher portion of reverse osmosis water. Add additives of powder or solution which can shift pH range down. CS077-1 DIRECTIONS Download