Senect XT1 Bedienungsanleitung
ORP Sensor XT1
MANUAL
Type
2
Type
Name of product:
SENECT®ORP Sensor XT1
Type:
ORP-1-XT1-SC
Art.-No.:
2300
Producer:
SENECT GmbH & Co. KG
An 44 –No. 11
76829 Landau / Germany
Important note:
Please read this manual carefully and store it so that you can use
it later. Read the warning and safety notes attentive.
Further information and latest software releases or documents
can be downloaded from:
www.senect.de
© SENECT GmbH & Co. KG - FW01.10
Table of contents
3
Table of contents
Type............................................................................................... 2
Table of contents........................................................................... 3
Used symbols and wording ........................................................... 4
General Security Notes.................................................................. 5
Intended use.................................................................................. 6
Getting started .............................................................................. 7
Scope of delivery ....................................................................... 7
Installation and start-up............................................................ 7
Maintenance and cleaning ............................................................ 9
Cleaning................................................................................... 10
Maintenance ........................................................................... 10
Lifetime.................................................................................... 11
Calibration ............................................................................... 12
Notes regarding the measurement of the oxidation-reduction
potenteial .................................................................................... 15
Technical Data ............................................................................. 17
Information about the correct disposal ...................................... 18
Guarantee.................................................................................... 19
Used symbols and wording
4
Used symbols and wording
DANGER!
Warning of life threatening
dangers.
WARNING!
Warning of possible life
threatening and / or severe
irreversible injuries.
ATTENTION!
Warning of possible medium
or slight injury.
ATTENTION!
Follow the notes to avoid
damage of equipment.
NOTE!
Further information for the
use of the device.
NOTE!
Further information for the
use of the device.
General Security Notes
5
General Security Notes
The ORP Sensor XT1 is an electronic sensor unit for the
measurement of the oxidation-reduction potential (ORP or
short redox-potential) of water and must be used in
combination with SENECT control units.
Since it is an electronic product the common prerequisites
for a safe instrument usage must be fulfilled. The
corresponding control unit must be operatated
with 230 V AC (~50 Hz). Ensure that all cables are
installed safely so that no obstacles for persons are
built and all. Mount all cables and electric devices
protected against direct environmental impacts
like overheating by direct sunlight and water.
Even if the products are protected against spray
water, the product´s lifetime will be elongated, if it is
mounted on a protected place. The ORP Sensor XT1 uses
24 V DC supply voltage which is therefore not of danger for
persons.
For many applications a ground fault circuit interruper
(interrupting current <= 30 mA) is required by law. Inform
yourself about the valid legislation.
Intended use
6
The operating temperature of the device must be between
0°C and +40°C. It is not allowed to modify the sensor, to open
the housing or to insert anything into the housing.
The ORP Sensor XT1 is designed to be operated by
professional users. However, it can be operated by children
of the age of at least 8 years and persons with limited
physical, sensorial or cognitive ability, if they are supervised
and trained in the usage of the instrument, so that no
dangers or threats can result of the operation.
Please store this manual. We suggest the storage a copy of
the manual in the vicinity of the device.
Technical and optical changes of this manual are subject to
alterations.
Warning: Before starting any maintenance work,
unplug all electrical devices in the water.
Intended use
With the ORP Sensor XT1, the oxidation-reduction potential
(ORP or short redox-potential) of water can be measured at
temperatures ranging from 0°C to +40°C. The range of the
Getting started
7
sensor is from -1000 mV up to +1000 mV and the resolution
of the sensor signal is 1 mV. The ORP Sensor XT1 must be
used in combination with SENECT control units. The sensor is
designed for the use in industrial aquaculture applications.
The displayed value refers to the Ag/AgCl-Electrode.
Getting started
Scope of delivery
1 x ORP Sensor XT1 Electronic interface
1 x ORP Sensor XT1 Electrode
1 x ORP Calibration-Solution (+475 mV)
1 x ORP Calibration-BNC-plug (0 mV)
1 x Manual
Note
Please check directly after delivery, that the
package is not destroyed or damaged or was
opened before. Please check also, that all parts as
listed above are included. If anything is missing or broken,
please contact us as soon as possible within 14 days.
Unfortunately, we cannot accept later information of
damage, which happened during the transport.
Installation and start-up
Getting started
8
Choose a place for the electronic interface of the
XT1 which is clean, dry and protected from direct
sunlight. Ensure that all cables are placed safely
and all regulations are fulfilled.
1. Connect the cable of the electrode with the electronic
sensor interface (BNC-plug).
2. Connect the blue marked plug of the cable with your
control unit at one of the sensor input ports. Your
SENECT control unit will automatically recognize the
sensor and starts the measurement.
3. Remove the cap of the electrode and rinse it with tab
water.
4. Pour a small amount of the calibration solution in
another vessel and dip the sensor tip into the solution
and move it gently.
If the ORP value displayed with your control unit is close to
the value of the calibration solution (±5 mV), you can directly
install the electrode. If the deviation is larger, please
calibrate the sensor (see chapter calibration)
5. Mount the electrode at the measurement location. The
electrode shaft including the active glass tip must be
submerged and placed into the water flow. The electrode
must be mounted vertical (angle > 80°).
Maintenance and cleaning
9
For the mounting of the electrode, flow through
measurements cells can be used. If the electrode shall be
placed at an open water surface, it can be mounted on a
buoy e.g. made of Styrofoam. Please consider here, that the
electrode must be in a place with low to moderate currents
to deliver correct measurement results. If the current is too
large (> 50 cm / s) the measurements are likely to be
disturbed.
Fig. 1: Mounting possibilites of the electrode.
Maintenance and cleaning
The electrode must never run dry –not during the usage and
storage. At deliver, a silicone cap filled with 3 M KCL solution
is on the electrode. If you do not use the electrode, put the
filled cap on.
Maintenance and cleaning
10
Cleaning
The active glass part of the electrode must not be
cleaned with abrasive or aggressive cleaning
agents (e.g. scouring milk). Scratches on the glass
part can damage the electrode.
However, dirt on the glass must be removed. Use therefore
a water-dipped soft paper towel and rinse the electrode with
clean water. If the contamination cannot be removed, you
can use the following cleaning agents:
For chalk or
metalhydroxide coatings:
Diluted hypochloric acid (1-3%)
For fatty or oily
contamination:
Organic solvents (e.g. ethanol) or
tenside containing solvents (e.g.
dishwashing agents)
For protein
contamination:
Pepsin in diluted hypochlorid acid
Maintenance
Under normal conditions (clean water, stable and
not extreme ORP values), a check every 14 days is
recommended, and if necessary a new calibration
must be performed.
Dieses Handbuch passt für folgende Modelle
2
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