Sander REDOX User manual

Instructions for Use
REDOX Potential Measuring
and Regulating Unit

Introduction
Congratulations! With your Sander REDOX controlling unit you will be satisfied, because you can
now benefit from many years of technical aquarium experience that the Sander Company has in
producing guaranteed quality devices for successful fish-tank engineering.
Before using the device, please make sure you have read the general safety instructions. Please
read the instructions for use attentively and keep the instructions nearby in case you have any
questions. Should the Quality Device be given to a third, be sure to give on also the instructions for
use with the item. Please use the device only in the described manner for the specified ranges.
Appropriate use of Sander REDOX Ozonizers
The Redox potential measuring and regulating unit is characterized for use only with corresponding
ozone generators of our product line items Certizon, S, XT and P. The device was synchronized
specifically for use with the mentioned products and may only be operated as represented in the
following instructions according to the corresponding combination.
Please notice that other uses or modifications of the device are regarded as not appropriate and
can involve the danger of injury and/or harm of the device. For any damage resulting from adverse
device use, the manufacturer has no liability. This quality device is not determined for industrial
usage.
This device is not meant to be used by disabled persons with insufficient bodily, sensory or mental
abilities or that lack experience (including children) and/or knowledge to use it, unless they are
supervised by a person responsible for their safety or have attained subsequent instructions from
that person, how the device is to be used.

REDOX controlling unit using guide
1 Display of REDOX amount
2 Switch for measured amount / set point amount
3 Switch status of electrical socket
4 Adjustment of set point
5 Socket power adapter
6 BNC connector for REDOX electrode
7 REDOX electrode with cable
8 Connecting cable for REDOX to Ozonizer
9 Bracket for REDOX electrode
10 Screw Driver
11 Cleaning Brush
12 Bottle
Technical Data
Range of usage: 0 bis 1000 mV
Power supply: 12 VDC
Current consumption: 100 mA
max. Switching capacity: 12 VDC / 4A
Contents of delivery
Before starting the unit, check whether the following delivery contents are complete and
undamaged:
1 x Redox potential measuring and regulating unit, 1 x REDOX electrode with cable,
1 x Connecting cable for Ozonizer, 1 x Bracket for REDOX electrode, 1 x Screw Driver,
1 x Cleaning Brush, 1 x Bottle for cleaning fluid and 1 x REDOX controlling unit Instruction booklet.

Information about possible dangers:
The REDOX potential measuring and regulating unit is used on the owner’s risk.
Children from the age of 8 years as well as disabled or handicapped persons or
persons with no or small technical experience may use the REDOX potential
measuring and regulating unit when under surveillance or after having received a
thorough tuition about the use and safety measures.
Children may not play with the REDOX potential measuring and regulating unit.
Children may do the cleaning and servicing of the unit only under surveillance.
Please do not dismantle the unit under any circumstances. By inappropriate
repairs, considerable dangers can result for the owner. If needed, contact the
manufacturer or an authorized technician for repairs.
If the REDOX potential measuring and regulating unit is damaged, please do not
operate it without having it checked. Damaged Devices may be an unnecessary
and considerable danger to the owner.
Warranty and liability information
All of the REDOX potential measuring and regulating units have a 24-month
guarantee. Within the guarantee, all parts effected by material defects or improper
assembly will be replaced with no further cost.
The device may not be held under water or come into contact with water.
The following are not covered by warranty:
Any damage done to the unit by misuse (differing from the REDOX controlling unit
using guide instructions) or failure following the instructions supplied.
Any damage done to the unit by unauthorized repair, disassembly, improper
cleaning or opening the device.
Any damage done to the unit by an accident, improper transportation, dropping or
hitting the device after the date it was bought.
The guarantee and liability of Erwin Sander Elektroapparatebau GmbH Company
covers only the delivered device or REDOX controlling unit.

Setting up and attaching the REDOX measuring and regulating unit
Setting the unit up:
The device can be placed flat on a stable surface or hung on a vertical wall.
Attaching the unit:
Scheme showing use of Sander ozone generators in product line items Certizon and S
A Sander ozone generator of the product line item Certizon or S should be connected using the
delivered connecting cable for REDOX Ozonizer (8). The REDOX measuring and regulating unit
works with the delivered Ozonizer special power adaptor.
Scheme showing use of Sander ozone generator Ozonizer P:
Notice: The Sander ozone generator Ozonizer P should be attached to the REDOX measuring and
regulating unit using the connecting cable delivered with Ozonizer P.

Switching the REDOX potential unit on
The REDOX potential measuring and regulating unit has two functions. The REDOX potential unit
measures the redox potential of the water with an electrode and has digital display to show the
rate. A connected ozone generator can be accessed and is turned on or off, depending first of all
on the measured redox potential and secondly, depending on the adjusted set-point of the REDOX
potential unit. If the measured redox potential is higher than the adjusted set-point, the ozone
producer is switched off.
If the measured rate is lower than the adjusted set-point, the ozone producing unit is turned on.
The potentiometer (4) is used for adjusting the required set-point. When the switch for measured
amount/set point amount (2) is held pressed; the set point is shown in the display. The required
amount can be adjusted (4) on the potentiometer by using the screwdriver (10). When letting go the
switch, the current measured amount appears in the display again.
The light-emitting diode (3) shows whether the power tension is turned on for accessing the ozone
generator. If the REDOX potential amount is higher than the required rate, the light-emitting diode
and the power tension are switched off automatically. If the REDOX potential amount is lower than
the required rate, the light-emitting diode and the power tension are automatically switched on.
Usage, cleaning and maintenance of the REDOX potential electrode
When in everyday use, the safety-cap on the electrode foot must be taken off. Make sure that the
metal sensor (gold or platinum) and the diaphragm are surrounded by a lot of water in order to
avoid deposits. The measured amount stabilizes after approx. 15 to 30 minutes. If the measuring
electrode is not in water, the sponge in the foot cap must be moistened again and it must be put on
to the electrode foot. The electrode shouldn’t dry out! The electrode foot should not be touched by
bare fingers in order to avoid the electrode from getting greasy.
After a while, a thin layer of common algae will settle at the metal base of the electrode foot (7).
Algae can not always be recognized with the naked eye. However, this algae residue may hinder
the correct measuring amount of the REDOX potential unit. If the REDOX potential measuring and
regulating unit shows unrealistic amounts, then the metal plate must be cleaned with the brush
(11). In order to remove the algae layer from the electrode (7), the cleaning brush (11) should be
used carefully without pressing it down and if possible, brushing only in one direction two or three
times, to prevent scratching the soft metal. If the metal plate is scratched a lot, but otherwise clean,
the REDOX potential unit will still work properly; but it then may take more time to measure current
amounts, compared to a brand new unscratched metal plate.

Notice: if there is a lot of algae residue on the metal plate or if the electrode (7) shows unrealistic
amounts after using the cleaning brush (11), make use of a cleaning fluid. Due to safety regulations
we are not able to send a cleaning fluid with this package. We recommend a commercially
available 30% citric acid available in a common drugstore. Please proceed as follows: Take the
bottle (12) delivered along with the package and fill it one third of the bottle with the citric acid. Fill
up the rest with tap water. Screw the electrode off the measuring unit and dip it into the cleaning
fluid for three minutes, stirring the foot around a bit. Then simply rinse the electrode off with tap
water and keep it in water for one hour.
Please note the safety instructions of the supplier of the citric acid.
Diagram of the REDOX Electrode
To always get exact measuring amounts and the best results, the maintenance as describe above
should be done accordingly and the REDOX Electrode itself may be exchanged yearly.

Disposal
The wrapping consists of non-polluting materials which you can dispose of at any
local recycling collection places.
Possibilities for disposing the used product can be asked about at your municipal
administration. In interest of general environmental protection, do not dispose of
the device in domestic garbage, but provide for an appropriate way of disposal.
You can be informed about garbage collecting places and opening hours at your
public administration.
Erwin Sander Elektroapparatebau GmbH Aquarientechnik
Am Osterberg 22 DE 31311 Uetze-Eltze
Telefon [phone] Telefax [phone]
[e-mail] www.aqua-sander.de