Operating instructions for Redox
Contents
1. from becoming dry and aging If the electrode is not used for some time apply the cap again carefully removing any air bubbles For glas electrodes use the plastic protection tube by sliding the tube gently onto the electrode The small holes in the protection tube should be near the electrodes tip By doing so your precious electrode will be protected from breaking Before adjustment remove the protection tube Trop Electronic GmbH Kronprinzenstrasse 3a 58511 Ludenscheid Germany Tel 049 02351 43268 00 Fax 01 Internet www troptronic de Email troptronic t online de 1979 oP ronic seit Operating instructions for Redox Controller Article No 8 VIII Adjustment With the measuring device comes a set of calibration solution This solution should have the same temperature as printed on the label of the bottle e g 25 C Before adjustment flush the electrode under clear water Fill the glass flask half with Redox solution Now dry the electrode cautiously with a clean cloth to prevent dilution of the calibration fluid As there are only some millilitres in the flask every drop of water at the tip of the electrode will change the reading considerably Now put the electrodes tip into the yellow calibration solution and wait for the display to stabilise This may take some minutes Time increases as the electrode age When the display has settled adjust to the value written on the bottles label e g 220 mV using the screwdriver w2. 268 00 Fax 01 Internet www troptronic de Email troptronic t online de
3. Operating instructions for Redox Controller Article No 8 VIII Elements of the front side fo Limam a 19 Controller Setpoint o RH mv ee 3 Setting Actual value Easiest Red mode selector 4 digit LED display shows the actual pH value Adjustment potentiometer used for calibration 3 digit push button switch sets the Redox setpoint Mode selector setthe control mode up down 3 LEDs atthe left indicate the control mode up down red LEDs and the state of the outlet yellow LED 3LEDs atthe right indicate actual value is above or equal or below the setpoint Elements oftherear side Fuse holder BNC jack Outlet socket i Power cord Connect the power cord with the 235 volts power net Connect the Redox sensors connector to the BNC jack at rear side Put the Redox electrode into the aquarium Don t submerse the electrode fully The top of the electrode should be off the water Avoid stray current by bad isolated heaters or pumps in the aquarium Even small voltages which do not affect the creatures in the aquarium can damage the electrode rapidly There is no warranty for electrodes ruined by this galvanic process If you want to control the Redox value for a certain value a proper device like a pump or a valve has to be connected to the outlet socket There are two examples showing how to control in this text The electrodes protection cap is filled with a special solution KCL to protect the electrode
4. ith the red adjustment potentiometer Trop Electronic devices are shipped already calibrated and ready to use New devices should be recalibrated approximately two weeks after setting up operation Examples Please observe for both examples be cautious to start with low amount of gas or solution Don t place the Redox electrode to near to gas solution outlet The outlets state is indicated by the left yellow LED It will take approx 1 minute for the outlet and the yellow LED to be activated when the actual value is out of range The outlet will shut off immediately if the actual value runs into the good range When the actual value crosses the setpoint dependng on the mode switch the delay will start again This delay is built in to enable mixing of water and gas solution and to avoid unnecessary switching of the valve due to choppy water avoiding unnecessary noise etc After 10 minutes on for the outlet there will be a pause for 1 minute enabling the fluids to mix The green LED gt lt will be on when the Redox value is equal to the setpoint Example 1 lowering the Redox value Although lowering the Redox value is seldom used ist nevertheless possible e g using a nitrate filter with operating in the negative range The devices outlet has to be connected to a dosing pump which controls the intake of alcohol into an aquarium The red mode control selector has to be pressed in The lower left red LED is lighting Now set
5. the 3 digit push button switch to 000 and wait for the Redox value to become negative for the actual value When the actual value becomes negative release the red mode control selector out and programm the 3 digit push button switch with small increments of approx 10mV to more and more negative setpoints Now the device will try to hold the Redox value to the selected setpoint If the Redox value is higher than the setpoint the upper right red LED gt should be on After approx 1 minute the outlet will switch on Example 2 increasing the Redox value The devices outlet has to be connected to an ozonizer which controls the intake of ozone gas O3 into an aquarium The red mode control selector has to be released out Set the 3 digit push button switch to the desired Redox value Now the device will try to hold the Redox value to the selected setpoint If the Redox value is lower than the setpoint the lower right red LED lt should be on After approx 1 minute the outlet will switch the dosing pump on Replacing the fuse The fuse is in a holder above the power cord at the rear side of the device The holder cap is released by turning it counterclockwise Be sure to disconnect the device from the powernet before opening the holder The fuse has to be replaced by the exactly the same rating Subject to change without prior notice Trop Electronic GmbH Kronprinzenstrasse 3a 58511 Ludenscheid Germany Tel 049 02351 43
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