GREISINGER GMH 5630 User manual

Operating Manual
Water-Proof oxygen meter
for dissolved oxygen with
Integrated temperature and
pressure measuring
GMH 5630
Keep for later use.
www.ghm-group.de
Companies / Brands of the GHM
Englisch

H84.01.6B-04 Betriebsanleitung GMH 5630 Seite 2 von 20
_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
1SAFETY......................................................................................................................................................................3
1.1 GENERAL NOTE.....................................................................................................................................................3
1.2 INTENDED USE.......................................................................................................................................................3
1.3 QUALIFIED STAFF ..................................................................................................................................................3
1.4 SAFETY SIGNS AND SYMBOLS................................................................................................................................3
1.5 REASONABLY FORESEEABLE MISUSE ....................................................................................................................4
1.6 SAFETY GUIDELINES..............................................................................................................................................4
2PRODUCT DESCRIPTION......................................................................................................................................5
2.1 SCOPE OF SUPPLY ..................................................................................................................................................5
2.2 OPERATION AND MAINTENANCE ADVICE..............................................................................................................5
3START OF OPERATION.........................................................................................................................................6
4OPERATION..............................................................................................................................................................6
4.1 DISPLAY ELEMENTS...............................................................................................................................................6
4.2 PUSHBUTTONS.......................................................................................................................................................7
4.3 CONNECTIONS .......................................................................................................................................................7
4.4 POP-UP CLIP...........................................................................................................................................................7
5CONFIGURATION...................................................................................................................................................9
6THE OXYGEN SENSOR........................................................................................................................................10
6.1 DESIGN OF SENSOR GWO 5610...........................................................................................................................10
6.2 FIRST START OF OPERATION /FILLING OF SENSOR GWO 5610 ...........................................................................12
6.3 SENSOR MAINTENANCE OF SENSOR GWO 5610..................................................................................................13
7DISSOLVED OXYGEN MEASURING - PLEASE NOTE..................................................................................13
7.1 CORRECTION OF SALINITY 'SAL' ........................................................................................................................14
7.2 AMBIENT PRESSURE AND MEASURING DEPTH OF THE SENSOR............................................................................14
8KALIBRIERUNG DES SAUERSTOFFSENSORS..............................................................................................14
8.1 CALIBRATION ......................................................................................................................................................14
8.2 EVALUATION OF SENSOR STATE „ELE[“.............................................................................................................15
8.3 CALIBRATION INTERVAL ([.INT) ..........................................................................................................................15
9UNIVERSAL OUTPUT...........................................................................................................................................15
10 ADJUSTMENT OF TEMPERATURE INPUT.................................................................................................17
11 INSPECTION OF THE ACCURACY / ADJUSTMENT SERVICES............................................................17
12 BATTERY CHANGE...........................................................................................................................................17
13 ERROR AND SYSTEM MESSAGES................................................................................................................18
14 RESHIPMENT AND DISPOSAL.......................................................................................................................19
14.1 RESHIPMENT ....................................................................................................................................................19
14.2 DISPOSAL.........................................................................................................................................................19
15 SPECIFICATION.................................................................................................................................................20

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
1 Safety
1.1 General Note
Read this document attentively and make yourself familiar to the operation of the device before you use it.
Keep this document in a ready-to-hand way in order to be able to look up in the case of doubt.
Mounting, start-up, operating, maintenance and removing from operation must be done by qualified,
specially trained staff that have carefully read and understood this manual before starting any work.
The manufacturer will assume no liability or warranty in case of usage for other purpose than the intended
one, ignoring this manual, operating by unqualified staff as well as unauthorized modifications to the device.
The manufacturer is not liable for any costs or damages incurred at the user or third parties because of the
usage or application of this device, in particular in case of improper use of the device, misuse or
malfunction of the connection or of the device.
The manufacturer is not liable for misprints.
1.2 Intended use
The instrument is measuring dissolved oxygen in water.
The measuring is performed by means of a suitable oxygen sensor (included in supply in standard
instrument) connected to the 7-pole bayonet socket, the sensor measures at the membrane at the tip of the
sensor.
Due to the properties of the sensor, it has to be calibrated regularly (e.g. at fresh air = 20.95 % Vol O2) to get
precise values. If the sensor is used up, this will be detected during the calibration, the sensor has to be
regenerated or replaced before continuing with measuring.
The safety requirements (see below) have to be observed.
The device must be used only according to its intended purpose and under suitable conditions.
Use the device carefully and according to its technical data (do not throw it, strike it …)
Protect the device from dirt.
1.3 Qualified staff
All instructions have to be well understood and complied with. To be sure that there is no risk arising due to
misinterpretation of measured values, the operator must have further knowledge in case of doubt - the user
is liable for any harm/damage resulting from misinterpretation due to insufficient knowledge.
1.4 Safety signs and symbols
Warning notices are marked in this manual as shown below:
Caution! This symbol warns of imminent danger, death, serious injuries and significant
damage to property at non-observance
This symbol warns of danger to living tissue and many materials, that can be damaged
or destroy by exposure to that chemical
Attention! This symbol warns of possible dangers or dangerous situations, which can
provoke damage to the device or environment at non-observance.
Note! This symbol point out processes, which can indirectly influence operation or
provoke unforeseen reactions at non-observance.

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
Note! This symbol refers of using a eye protection, which protects the eyes from strong
light, UV radiation, laser, chemicals, dust, splitter or weather conditions
Note! This symbol refers of using protective gloves, which protects for mechanical-,
thermal-, chemical-, biological- or electrical hazards
1.5 Reasonably foreseeable misuse
This device must not be used at potentially explosive areas!
Do not use these products as safety or emergency stop devices or in any other
application where failure of the product could result in personal injury or material
damage.
Failure to comply with these instructions could result in death or serious injury and
material damage.
This device must not be used at a patient for diagnostic or other medical purpose.
1.6 Safety guidelines
This device has been designed and tested in accordance with the safety regulations for electronic devices.
However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures
and special safety advises given in this manual will be adhered to when using the device.
Caution, acid! The electrode contains KOH
KOH can cause severe chemical burns!
If there was contact:
• To skin: Flush contacted area with large amounts of water for several minutes.
• To clothing: remove contaminated clothing.
• To eyes: Flush with large amounts of water for at least 15 minutes, obtain medical
treatment.
After swallowing:
• Give large volumes of water. Do not induce vomiting!
Trouble-free operation and reliability of the device can only be guaranteed if the device is
not subjected to any other climatic conditions than those stated under 15 Specification.If
the device is transported from, a cold to a warm environment condensation may cause in
a failure of the function. In such a case, make sure the device temperature has adjusted
to the ambient temperature before trying a new start-up.
If there is a risk whatsoever involved in running it, the device has to be switched off
immediately and to be marked accordingly to avoid re-starting.
Operator safety may be a risk if:
- there is visible damage to the device
- the device is not working as specified
- the device has been stored under unsuitable conditions for a longer time.
In case of doubt, please return device to manufacturer for repair or maintenance.
Internal connections of other devices e.g. from ground with protective earth may lead to
prohibited voltage levels that could disturb the function, damage or even destruct the
device or any connected equipment. Never run the device with a damaged or faulty
power supply. Risk of death by electrocution!

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
2 Product description
With this measuring device, you can easily detect how much oxygen is contained in a liquid. The oxygen
content is indicated in milligrams per litre (mg/l). At the same time the multi-display indicates the temperature
of the measured liquid. For calibration purposes, the device can also indicate the oxygen content in the air in
% Vol O2. Along with being indicated on the display, the measured values can also be sent to
a PC via an interface converter USB 5100 (accessory). To save battery power, the device shuts off
automatically (Auto-Power Off) if none of the keys is. Freely selectable (1…120 min).
pressed
2.1 Scope of supply
The scope of supply includes:
Handheld instrument GMH 5650 with 2 AAA- Batteries
Oxygen sensor GWO 5610
Operating manual
Short form manual
Test report
Silicone protective cover
2.2 Operation and maintenance advice
Battery operation:
If „BAT“ is shown in the lower display the battery has been used up and needs to be replaced. However, the
device will operate correctly for a certain time
If „BAT“ is shown in the upper display the voltage is too low to operate the device; the battery has been
completely used up. Battery change see chapter 12 Battery change.
The battery has to be taken out, when storing device above 50°C. We recommend taking
out battery if device is not used for a longer period.
After recommissioning, the real-time clock has to be set again.
Use device and sensor carefully and according to its technical data (do not throw it,
strike it, etc.). Protect the device from dirt.
USB or mains operation:
When connecting a mains cable or USB interface cable, please take care to connect only
allowed components.
The output voltage of a connected power supply unit has to be between 4.5 and 5.5 V
DC. Do not apply overvoltage!
We recommend operation with interface cable USB 5100. Then device is supplied by the
USB interface of the connected PC or USB power supply adapter.

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
3 Start of operation
In the case, the sensor was delivered ‘dry’, it has to be filled prior to operation. Please refer to chapter 6.2
First start of operation / filling of sensor GWO 5610.
Connect sensor, switch instrument on with .
After the segment test the instrument shows „[ORR“ shortly, if it was user adjusted. The device
starts measurement afterwards.
4 Operation
4.1 Display elements
1
Main display
Display of the current oxygen level,
please refer to chapter 5 Configuration LCD.2.
Choice via -Taste
2
Secondary display
sensor temperature, absolute pressure or depth (alternating,
please refer to chapter 5 Configuration LCD.2
3
Main display units
4
State of battery or sensor, if was pressed
5
Shows, if minimum/maximum/
memorized measuring value is in display
6
Arrow „ok“: Measured value is stable
7
Arrow „CAL“: Calibration
8
Arrow „SAL“: Salinity correcting active
9
Arrow „Logg“: Logger function is chosen
Is blinking, if cyclic logger is running
10
Arrow „hPa“: Pressure unit of internal sensor

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
4.2 Pushbuttons
On / off key, backlight
“press shortly“:
Activate backlight or switch on instrument
”press longer“:
Switch off instrument
Set/Menü
”press for 2 s“ (menu):
Invoke configuration menu
”press shortly“:
Change oxygen display unit
+
min / max
”press shortly“:
Min. or max. value is displayed
”press for 2 s“:
The corresponding value is deleted
Configuration
See chapter 5 Configuration:
Confirm settings, return to measuring
Store/Enter
”Measuring“:
with Auto-Hold off:
Hold and save current measuring value, (‘HLD’ is displayed).
with Auto-Hold on:
Start new measuring, It is finished , when “HLD’ shows in
display please refer to chapter 5 Configuration
Or calling the logger functions see chapter 5 Configuration
Configuration
See chapter 5 Configuration:
Confirm settings, return to measuring.
[AL:
”press shortly“:
Shown the sensor state of the last calibration
”press for 2 s“:
Start of the oxygen calibration
4.3 Connections
Universal output
Interface, supply, see chapter 9 Universal Output
7-pole bayonet socket
Connection for sensor and temperature probe
4.4 Pop-up clip
Handling
•Pull at label “open” in order to swing open the pop-up clip.

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
•Pull at label “open” again to swing open the pop-up clip further.
Pop-up clip closed
Pop-up clip at position 90°
Pop-up clip at position 180°
Function:
• The device with a closed pop-up clip can be plainly laid onto a table or attached to a belt, etc.
• The device with pop-up clip at position 90° can be set up on a table, etc.
• The device with pop-up clip at position 180° can be suspended from a screw or the magnetic holder
GMH 1300.
Device attached to a belt
Device set up on a table
Device suspended from
magnetic holder
GMH 1300

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
5 Configuration
Some menu points depend on current device settings (e.g. some points are locked if
logger memory contains data sets).
To change device’s settings, press for 2 s. This will activate the configuration menu (main display “SET“).
Pressing changes between the menus points, pressing jumps to the referring parameters, which
can be selected with key ).
The parameter value can be changed with or. . Pressing again jumps back to the main
configuration menu and saves the settings. Pressing finishes the configuration.
Pressing “menu“ and ”store“ at the same time for more than 2 seconds will reset the
device to factory defaults.
If no key is pressed for more than 2 minutes the configuration will be aborted. All changes
will be discarded!
Menu
Parameter
Value
Description
or
see
SET
(ONF
Set Configuration: General configuration
5
U N,T
(ONC
(ONC ppm
Display unit of O2- concentration ppm (identical values like mg/l)
**
(ONC mg/l
Display unit of O2- concentration mg/l (identical values like ppm)
[H 2
SAT %O2
Main display shows O2- concentration (mg/l or ppm) or O2-Saturation in
% Sat O2(ex works setting)
P 02 hPa
Main display shows O2- concentration or O2-partial pressure in hPa
P 02 mmHg
Main display shows O2- concentration or O2- partial pressure in mmHg
RES
K ,
Best O2resolutions
LO
Low O2resolution, calm value display (standard)
SAL
OFF
Salinity correction deactivated (ex works setting)
0.1 …70.0
Salinity correction activated, Unit ‰ = PSU, e.g. sea water ~35.0
LCD.2
T
Secondary display always temperature
P
Secondary display always absolute pressure
P T
Secondary display alternates between temperature and abs. pressure
U N,T
T
°C
All temperatures in degree Celsius (ex works setting)
°F
All temperatures in degree Fahrenheit
[. INT
1 …365
Calibration reminder period (in days)
OFF
No calibration reminder
A VTO
HLD
ON
Auto stable value determining freezing (when logger = off)
OFF
Standard hold function on key press (when logger = off)
P.OFF
1 …120
Power-off delay in minutes. Device will be automatically switched off as
soon as this time has elapsed if no key is pressed/no interface
communication takes place. (ex works setting 20min)
OFF
Automatic power-off function deactivated (continuous operation)
L,TE
OFF
Backlight deactivated
5...120
Turn off backlight after 5… 120 s (factory settings: 10 s)
ON
Backlight always on
0V T
OFF
Interface off -> minimal power consumption
SER
Serial interface activated (ex works setting)
DA[
Analog output activated

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_____________________________________________________ _____________________________________________________________________________
GHM GROUP –Greisinger | GHM Messtechnik GmbH
Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Phone [phone] | Fax [phone]
www.greisinger.de |[email protected]e
ADR
0 1,1 1,2 1,…9 1
Base address for serial interface communication (ex works setting 01)
SET
(ORR
Set Corr: Input adjustment
**
10
0FFS
°C or °F
-5.0 °C .. 5.0 °C
or
-9.0 °F .. 9.0 °F
The zero point of the temperature measuring is shifted for the entered
value.
This can be used to compensate sensor and instrument deviations
**
OFF
No zero adjustment for temperature measurement (=0.0°)
S[AL
°C or °F
-5.00 ... 5.00 %
The slope of the temperature measurement is corrected by this value.
This can be used to compensate sensor and instrument deviations
**
OFF
No slope adjustment for temperature measurement (=0.00)
0FFS
hPa
-20 .. 20 hPa
The zero point of the pressure measuring is shifted for the entered value.
This can be used to compensate sensor deviations
**
OFF
No zero adjustment for pressure measurement (=0 hPa)
YEAR
YYYY
Year: set year
DATE
TT.MM
Date: set date day.month
(*) If logger memory contains data sets parameters marked with (*) cannot be called. You
have to clear memory to change these parameters!
(**) If logger is running parameters marked with (**) cannot be called
6 The oxygen sensor
6.1 Design of sensor GWO 5610
6.1.1 General notes
The oxygen sensor GWO 5610 is an active electrode consisting of a platinum cathode and a lead anode with
the electrolyte being potassium hydroxide (KOH). In case of oxygen being present it will be reduced at the
platinum cathode, i.e. the electrode supplies a current. No oxygen means no current either. The oxygen
measurements uses up the lead anode. The sensor is subject to ageing. Also the e sensor may lose
electrolyte due to high temperature or dry operation. Therefore, we recommend to maintain the electrode at
monthly intervals. See chapter 6.3 Sensor maintenance of sensor GWO 5610)
Attention when working with electrolyte!
The electrolyte is caustic! (strong base, KOH)
Avoid contact with skin and eyes.
Protective equipment is necessary!
Irritates skin and mucous membranes, caustic.
In the case of contact with the eyes, immediately clean with clear water about 15 minutes.
Consult a doctor!
Make it a rule to always store the oxygen sensor GWO 5610 in a humid environment.
- in the storage flask filled with water
- in another container filled with water
If electrode has not been used for some time, clean membrane with soft cloth and remove
deposits, if any (algae, bacteria etc.).