GREISINGER ResOx 5695 User manual

H84.0.02.6C-01
GHM GROUP - Greisinger
GHM Messtechnik GmbH | Hans-Sachs-Str. 26 | 93128 Regenstauf | GERMANY
Tel.: [phone] | [email protected] | www.greisinger.de
Operating manual
Water-Proof oxygen meter for oxygen in gases
with Integrated temperature and pressure
measuring and data logger
As of version 1. 0
ResOx 5695

Please carefully read these instructions before
use!
WEEE-Reg.-Nr. DE 93889386

Please consider the safety instructions!

Please keep for future reference!

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Contents
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......................................................................................................................................4
2.1 SCOPE OF SUPPLY ..................................................................................................................................................4
2.2 OPERATION AND MAINTENANCE ADVICE..............................................................................................................5
3START OF OPERATION.........................................................................................................................................5
4OPERATION..............................................................................................................................................................5
4.1 DISPLAY ELEMENTS...............................................................................................................................................5
4.2 PUSHBUTTONS.......................................................................................................................................................6
4.3 CONNECTIONS .......................................................................................................................................................6
4.4 POP-UP CLIP...........................................................................................................................................................7
5CONFIGURATION...................................................................................................................................................8
6THE OXYGEN SENSOR........................................................................................................................................10
6.1 GENERAL NOTES ABOUT THE OXYGEN SENSOR...................................................................................................10
6.2 SENSOR ELEMENTS..............................................................................................................................................11
7OXYGEN MEASURING IN GASES- PLEASE NOTE.......................................................................................11
7.1 APPLICATION OF THE DIFFERENT SENSOR TYPES ................................................................................................11
8EXCHANGING THE SENSOR ELEMENT.........................................................................................................12
9CALIBRATION OF THE OXYGEN SENSOR....................................................................................................13
9.1 ONE POINT CALIBRATION “(AL. 1-PT“.................................................................................................................13
9.2 2/3- POINT CALIBRATION ”(AL 2-PT“,”(AL 3-PT“..........................................................................................13
9.3 EVALUATION OF SENSOR STATE “ELE[“..............................................................................................................14
10 DATA LOGGER...................................................................................................................................................14
10.1 GENERAL .........................................................................................................................................................14
10.2 RECORDING MANUAL ”FVNC STOR“..................................................................................................................14
10.3 AUTOMATIC RECORDING WITH SELECTABLE CYCLE TIME ”FVNC (Y(L“..........................................................15
11 ADJUSTMENT OF TEMPERATURE INPUT.................................................................................................16
12 GLP........................................................................................................................................................................16
12.1 CALIBRATION/ADJUSTMENT INTERVAL “[INT“................................................................................................16
12.2 CALIBRATION/ADJUSTMENT MEMORY ”READ [AL“.........................................................................................16
13 ALARM “AL.“........................................................................................................................................................17
14 REAL TIME CLOCK“(L0(“..............................................................................................................................17
15 UNIVERSAL OUTPUT .......................................................................................................................................17
15.1 INTERFACE.......................................................................................................................................................17
15.2 ANALOG OUTPUT .............................................................................................................................................18
16 INSPECTION OF THE ACCURACY/ ADJUSTMENTS AERVICES ..........................................................19
17 BATTERY CHANGE...........................................................................................................................................19
18 ERROR AND SYSTEM MESSAGES................................................................................................................20
19 RESHIPMENT AND DISPOSAL.......................................................................................................................21
19.1 RESHIPMENT ....................................................................................................................................................21
19.2 DISPOSAL.........................................................................................................................................................21
20 SPECIFICATION.................................................................................................................................................21

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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 oxygen in air and gas mixtures either as partial pressure or as concentration in
% Vol. O2.
For the measuring an external sensor of the type GOO-..., GGO... or GGA ...is necessary.
The measuring take place at the extern opening 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 sensor has to be connected to the 7-pole bayonet socket.
The safety requirements (see below) have to be observed.
The device must be used only according to its intended purpose and under suitable conditions.
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.
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 points out processes, which can indirectly influence operation or
provoke unforeseen reactions at non-observance.

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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.
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 20 Specification.
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.
2 Product description
2.1 Scope of supply
The scope of supply includes:
Handheld instrument ResOx 5695 with 2 AAA-Batteries
(oxygen sensor usually is ordered separately. For choice please refer to chapter 6 The oxygen
sensor)
Operating manual
Short form manual
Calibration protocol
Silicone protective cover

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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 17 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.
3 Start of operation
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:
Oxygen concentration in % (% Vol. O2) or
Oxygen partial pressure (hPa or. mmHg)
Choice via - key
2
Secondary display:
sensor temperature or absolute pressure, (alternating,
please refer to chapter 5 Configuration “LCD.2“
3
Main display units
4
State of battery
5
Shows, if minimum/maximum/
memorized measuring value is in display
6
Arrow “ok“: Measured value is stable
7
Arrow „CAL“: Calibration
8
Arrow “Logg“: Logger function is chosen
Is blinking, if cyclic logger is running
9
Arrow “hPa“: Pressure unit of internal sensor

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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 sec“ (menu):
Invoke configuration menu
”press shortly“:
Change oxygen display unit
+
min / max
”press shortly“:
Min. or max. value is displayed
”press for 2 sec“:
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 10 Data logger
Configuration
See chapter 5 Configuration:
Confirm settings, return to measuring
[AL:
”press shortly“:
Shown the sensor state of the last calibration
”press for 2 sec“:
Start of the oxygen calibration
4.3 Connections
Universal output
Interface, supply, analog output see chapter 15
Universal output
7-pole bayonet socket
Connection for sensor and temperature probe
Pressure Port
Tube Connection for ambient pressure compensation
of oxygen sensor.

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4.4 Pop-up clip
Handling
•Pull at label “open” in order to swing open the pop-up clip.
•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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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 seconds. 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 ).
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 and at the same time for more than 2 seconds will reset the device to
factory defaults.
If there are data sets stored (Logger: ”FVNC STOR“), the first menu point displayed is
”READ LO66“ see chapter 10 Data logger.
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
9 12
[H 2
P 02 hPa
Oxygen partial pressure display in hPa
*
P 02 mmHg
Oxygen partial pressure display in mmHg
RES
K,
Best O2resolution
LO
Low O2resolution, calm value display (standard)
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
[AL.P
1-PT
Simple one point calibration at air
2-PT /3-PT
2 or 3- calibration at air, or in oxygen or in nitrogen / zero gas
[. 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 Illumination 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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ADR
0 1,1 1,2 1,…9 1
Base address for serial interface communication (ex works
setting 01)
DA.,N
[ONC
Analog output is corresponding to concentration in %
P. 02
Analog output is corresponding to partial pressure in hPa or
mmHg
DA[.0
0.0...100.0 %O2
Measuring value that should correspond to output 0 V
e.g. for, (ex works setting 0.0 % Vol O2)
DA[. 1
0.0...100.0 %O2
Measuring value that should correspond to output 1 V
e.g. for, (ex works setting 100.0 % Vol O2)
SET
(ORR
Set Corr: Input adjustment
**
11
0FFS
°C bzw. °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 bzw. °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)
SET
AL
Set Alarm: Configuration of the alarm settings
13
AL. 1
ON /NO.SO
Monitoring oxygen: Alarm on with buzzer / Alarm on without
buzzer
OFF
No alarm monitoring for oxygen
AL.,N
[ONC
Monitoring oxygen: Concentration in % Vol O2
P. 02
Monitoring oxygen: Partial pressure in hPa or mmHg
A 1.LO
e.g. 0.0...100.0
%
Min alarm limit oxygen (not if AL. 1. oFF)
A 1.H,
e.g. 0.0...100.0
%
Max alarm limit oxygen (not if AL. 1. oFF)
AL. 2
ON /NO.SO
Temperature monitoring : Alarm on with buzzer / Alarm on
without buzzer
OFF
No alarm monitoring for temperature
A2.LO
-5.0 ... +50.0 °C
Min alarm limit temperature (not if AL. 2. oFF)
A2.H,
-5.0 ... +50.0 °C
Max alarm limit temperature (not if AL. 2. oFF)
SET
LO66
Set Logger: Configuration of the logger functions
10.3
FVNC
(Y(L
Cyclic: Automatic logger function
*
STOR
Store: manual recording
OFF
No logger activated
(Y(L
0:0 1 ... 60:00
Cycle time in [minutes: seconds] for cyclic logger
**
SET
(L0(
Set Clock: Configuration of the real time
14
(L0(
HH:MM
Clock: set time hours: minutes
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

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6 The oxygen sensor
6.1 General notes about the oxygen sensor
6.1.1 Life time
At the end of the life time, the signal of the sensor is dropping rapidly. The sensor evaluation in % therefore
can only be taken as a relative measure. An evaluation of 70% does not mean that 70% of life time is left, but
that the electrode signal has 70% of an optimal state reference.
The nominal life time may be reduced due to the application. Negative effects are:
Extreme storage and operation temperature.
Humidity of measured gas: If permanently used with dry gases (technical gases, bottled gas) the lifetime
decreases considerably.
The sensor state evaluation will be stored after a successful calibration of the oxygen
sensor.
6.1.2 Mounting /operation position
The optimum position for the sensor membrane is to point downwards.
If sensor is screwd in pressure.tight into an application wichs pressure differs from the
ambient pressure, the maximum differential pressure at the sensor membrane is 250 bar.
Unsuitable for underwater-diving-application e.g. Rebreather.
6.1.3 Measuring precision
The precision can be influenced due to:
Liquids at the sensor inlet. Rinse the inlet and dry with lint-free cloth.
Avoid liquids of any kind at the contacts.
Gas and sensor temperature have to be at same level. Best precision, when calibrated at measuring
temperature.
Pressure fluctuations: The sensor is originally a partial pressure sensor, i.e. changes in the absolute
pressure are influencing the measuring result directly proportional. A pressure change of 1% will cause a
additional measuring error of 1%!
For optimum precision calibrate at the same conditions at which you want to measure.

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6.2 Sensor elements
Unsuitable for underwater-diving-application e.g. Rebreather.
6.2.1 GOEL 370 acidic electrolyte
Integrated in GGO 570, GGA 570, GOO 570.
Recommended application areas 0...35 Vol. % O2(above, the measuring accuracy is
reduced).
Also suitable for gases with high CO2-proportion or for CO2-gas. The effect of the
acidic electrolyte is that the sensor is resistant against the CO2-gas and still hold the
stability.
6.2.2 GOEL 381 basic electrolyte
Short-time exposition of up to 10% CO2is not problematic (for example 15 minutes.
up to 10 times per day) for the GOEL 380 (e.g. exhaust measuring). If there is
measured more often with elevated CO2-concentration or at CO2-concentrations
above 10%, the exposition time has to be kept as short as possible and sufficient
measuring breaks should be made.
If the sensor is not exposed to free air during measuring pauses, the connected
tubes etc. have to be flushed with clean air or nitrogen.
Integrated in GGO 581, GGA 581, GOO 581.
Recommended application areas 0...100 Vol. % O2.
Preferred of measurements with extremely small oxygen content (e.g. < 0.3 Vol. %
O2), e.g. protective atmosphere, or more than 35 % Vol O2.
For gases without larger CO2 concentration
7 Oxygen measuring in gases- please note
The instrument is designed for measuring the oxygen partial pressure or the oxygen concentration (% Vol.
O2) calculated from partial pressure and ambient pressure) in gases. Please keep in mind.
The sensor consists of a sensing element (GOEL 3xx) enclosed in a sensor housing (GGO/ GGA/ GOO).
When purchasing a Sensor GGO/GGA/GOO 5xx, a sensor element is already integrated,
e.g. a GGO 570: contains housing GGO and a sensor element GOEL 370
7.1 Application of the different sensor types
7.1.1 GGO housing (closed sensor)
For measurements at atmosphere and in systems without over or under pressure, the GGO... is sufficient.
Additionally the GGO can be screwed tightly into systems with small
over or under pressure.
Attention! Mind the maximum pressure and the maximum pressure
difference at the membrane.
If instrument and sensor pressure are different, please connect the
pressure port of instrument to measuring pressure, otherwise it will
be compensated wrong!

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7.1.2 GOO housing (open sensor)
The sensor is equipped with drillings at the end and because of its
special construction the measuring gas streams optimally around the
sensor. No pressure can appear while gas blows to the sensor, which
otherwise would result in erroneous measures. The temperature
compensation speed of the sensor also is optimised by this design.
Especially the measuring of gases from compressed gas bottles,
where the expansion of the gas leaving the bottle lowers the temperature, is optimised with regard to the
temperature compensation and pressure errors. The gas flow should be chosen in a suitable range, where
no overpressure can happen, esp. if the sensor is connected directly to the source e.g. by means of a tube.
7.1.3 GGA housing (closed sensor with pressure port)
Especially at systems with over or under pressure or at dynamic
pressure due to gas flow this type is optimal. It can be screwed tightly
into systems with small over or under pressure.
Attention! Mind the maximum pressure.
The instrument pressure port is connected directly to the sensor port.
Then the actual pressure at the membrane will be measured and
compensated automatically.
7.1.4 GOG housing (ResOx measuring)
The GOG / ResOx housings are specialized gas sampling devices,
which are suitable to sample and analyse small gasprobes by means
of a gas sampling pump.
You get more informations in the referring GOG und ResOx set
manuals
8 Exchanging the sensor element
The sensor housings are consisting of two halves (1) and (4) and can be opened by screwing up:
GGO/GGA housing
GOO housing
GOG / ResOx 5695 housing
Changeable part is the sensor element (3). Important when reassembling:
- First screw in sensor (3) in part (1). Do not forget O-Ring (2)
Unscrew the sensor carefully e.g. by means of suitable nippers.
- The audio plug of part (4) has to be connected to the socket in the sensor. If this makes problems, the cable gland
(5) can be opened so that the cable can be shifted further into part (4), until the plug can be connected.
- After that screw together (1) and (4) tightly, if necessary retighten the cable gland (5).

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9 Calibration of the oxygen sensor
In order to compensate for ageing of the sensor, the sensor has to be calibrated at regular
intervals.
The device is equipped with an easy-to-use calibration function.
We recommend to calibrate the sensor at least all 7 days, or to get maximum precision,
before each measuring series.
9.1 One point calibration “(AL. 1-PT“
The calibration adjusts the sensor to the oxygen content of the atmosphere (20.95 % Vol. O2) Therefore
simply expose the sensor to the ambient air (sufficient ventilation in closed rooms has to be ensured).
Start calibration: press for 2 seconds.
The display will show A,R , and as soon the values for oxygen and temperature are stable, the
calibration will be finished.
Then the sensor state resulting of the successful calibration will be shown for a short time evaluation in 10%
steps ”xx% ELE[“.
9.2 2 / 3- Point calibration ”(AL 2-PT“, ”(AL 3-PT“
The sensor will be automatically calibrated to the oxygen content of the atmosphere (20.95 % Vol. O2), and
one or two additional concentrations. As reference, gases usually Nitrogen (0 % Vol. O2) or pure oxygen are
used (100 % Vol. O2).
1. Start calibration: press: - key for 2 seconds.
2. First calibration reference: (Pt.1)
As first reference at a 3-point calibration, the zero reference has to be applied 0 % VOL O2.
at a 2-point calibration either 100 % Vol. O2or 0 % Vol. O2.
The display will show , and the referring reference which should be applied.
- 0.2 for pure oxygen.
- NULL for 0% oxygen (e. g. pure nitrogen).
As long as the display blinks, the instrument recognises no valid reference.
As soon the values for oxygen and temperature are stable, the calibration of the first point will be finished.
The instrument tells you to apply the next reference (possible references are blinking in the display).
3. Second calibration reference: (Pt.2)
The display will show , and the referring reference which should be applied.
- A,R for ambient air.
- 0.2 for pure oxygen.
- NULL for 0 % oxygen. (e. g. pure nitrogen).
As long as the display blinks, no valid reference is recognised by the instrument.
As soon the values for oxygen and temperature are stable, the calibration of the second point will be
finished. At 2-point calibration the calibration will be finished and the sensor state resulting of the successful
calibration will be shown for a short time evaluation in 10% steps ”xx% ELE[“.
At 3-point calibration, the instrument tells you to apply the next reference (possible reference is blinking).
1. Third calibration reference: (Pt.3)
The display will show , and the referring reference which should be applied:
As soon the values for oxygen and temperature are stable, the calibration of the second point will be
finished. At 2-point calibration the calibration will be finished and the sensor state resulting of the successful
calibration will be shown for a short time evaluation in 10% steps ”xx% ELE[“.
In case of error messages being displayed during the calibration process, please refer to
our notes at the end of this manual! If a calibration cannot be carried out after an extended
period of time, at least one of the measuring values is unstable (oxygen partial pressure,
temperature).
Please check your measuring arrangements!

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9.3 Evaluation of sensor state “ELE[“
Watch sensor state: press shortly once, display shows ”xx% ELE[“for a short time.
This shows the sensor state resulting of the last successful calibration carried out.
The evaluation is displayed in 10 % steps: 100% means optimal sensor condition. Lower values are
indicating that the sensor life time will be reached soon.
But also an erroneous pressure may be the cause of low valuation values.
10 Data logger
10.1 General
The device supports two different logger functions:
”FVNC STOR“: Manual recording by key press .
Additional input of measuring point (L-Id) is needed.
”FVNC (Y(L“: Automatic recording at intervals of set cycle time.
A recording consists:
- Oxygen concentration in Vol. O2or ppm.
- Oxygen saturation in % oder oxygen partial pressure in hPa or mmHg.
- Temperature in °C oder °F.
- Absolute pressure in hPa abs oder mmHg abs.
- Measuring point L-Id (nur bei ”FVNC STOR“).
- Time and date of the recording.
For the evaluation of the data the software GSOFT3050 (version V3.0 or higher) has to be used. The
software also allows easy configuration and starting of the logger.
When the logger is activated (”FVNC STOR“ or ”FVNC (Y(L“) the hold function is no more available, the key
”store“ is solely used for the operation of the logger functions.
10.2 Recording manual ”FVNC STOR“
10.2.1 Recording the measured values manually
1000 measurements can be saved if the logger function ”FVNC STOR“where chosen, see chapter 5
Configuration.
Press shortly: Recording is stored. It will be displayed for a short time “ST.XX“
XX represents the number of the recording.
or
Measuring point choice
A number of 0…19999 or text, who is assigned to a measurement point number of
1…40, (comfortable assignment of texts can be done with gratis software GMHKonfig)

Confirm input
Logger memory full
10.2.2 Call manual recording
Saved recording can be selected with PC-Software GSOFT3050, also considered in the display device.
Press 2 seconds:The display is shown:
If recording are saved is appeared. Without recording the configuration menu
is appeared.
Last recording
Press again
Change between the data of the recording (O2-concentrate, O2-parial pressure, absolute
pressure, date and time)
or
Changing the measurement

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10.2.3 Delete manual recording
If there are data saved, they could be deleted by ressing the button store:
Press 2 seconds: Call ”delete-menu“
Change the recording: or
Clear nothing (cancel menu)
Clear all recordings
Clear the last recordind
Confirm the selection, end „delete-menu“
10.3 Automatic recording with selectable cycle time ”FVNC (Y(L“
If the logger function ”FVNC (Y(L“ is chosen, after the start, the logger automatically records at the adjusted
cycle time.
The logger cycle time is adjustable from 1 s to 60 min, see chapter 5 Configuration.
Storable records: 10000.
10.3.1 Start logger recording
Press 2 seconds: Start selection
After that, press again : automatic recording is starting.
Whenever a measuring is recorded the display shows ‘St.XXXXX‘.
XXXXX is the number of the measuring. If the logger memory is full, the display will shown …
The recording automatically will be stopped.
10.3.2 Stopping the recording manually
Press 2 seconds:If there runs an recording, “stopp-menu“is shown.
Change the selection: or
Do not stop the recording (cancel menu)
Stop the recording
Confirm the selection, end “stopp-menu“
If you try to switch off the instrument in the cyclic recording operation you will be asked
once again if the recording should be stopped.
The device can only be switched off after the recording has been stopped!
The Auto-Power-Off-function is deactivated during recording!
10.3.3 Clear recordings
Press 2 seconds:If there are datas available, and the recording is stopped, “delete-
menu“is shown
Change the selection: or
Clear nothing (cancel menu)
Clear all recordings
Delete the last recording
Confirm the selection, end ”delete-menu“

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11 Adjustment of temperature input
The temperature input can be adjusted with offset and scale. A reasonable adjustment presumes reliable
references (e.g. ice water, controlled precision water bath, etc.). If the inputs are adjusted (i.e. offset and
scale are different from default settings) the device will shortly display ”(ORR“ after turned on.
Default setting for offset and scale are ‘off’ = 0.0, i.e. inputs are not changed.
Zero point correction: Displayed value = measured value 0FFS.
Zero point and slope correction: Displayed value = (measured value - 0FFS) • (1 + S[AL / 100).
Displayed value °F = (meas. value °F - 32°F - 0FFS) (1 + S[AL /100).
12 GLP
GLP (Good Laboratory Practice) includes regular check of devices and accessories. For oxygen
measurements, it is highly important to ensure correct sensor calibration/adjustment.
The device provides the following functions to help with this.
12.1 Calibration/Adjustment interval “[INT“
You can input the interval after which the device reminds you to recalibrate.
The interval times should be chosen according to the application and the stability of the sensor „[AL“flashes
on the display as soon as the interval has expired.
12.2 Calibration/Adjustment memory ”READ [AL“
The last 16 calibrations are stored with results, date, and can be read out.
12.2.1 Show Memory
Historical calibration data can be comfortably read out via PC software GMHKonfig and GSOFT3050 or
displayed directly at the device:
Press for 2 seconds:
The display will show
oder (configuration level)
Press several times until this is
displayed:
READ[AL = ” read calibration data “
Press shortly: switch between::
- ELE[ = Overall evaluation in %
- SL. 1 = Slope 0% - Air *1)
- SL. 2 = Slope Air –100%*1)
- Display of date+time of data set
or
Change between the different calibration data sets
Quit calibration data set display
*1at the 1 and 2-Punkt-calibration is SL.1 = SL. 2
at 3-point calibration there are in dependent slope for the two segments.

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13 Alarm “AL.“
There are 3 possible settings:
off “AL.OFF“, on with buzzer “AL. ON“, on without buzzer “AL. NO.SO“.
Alarm is given in the following cases if alarm active (ON or NO.SO):
-Lower alarm boundary (A 1.LO) under-run
-Upper alarm boundary (A 1.H,) over-rum.
-Sensor error.
-Low battery (BAT)
-Err.7: system error (always with buzzer).
In case of an alarm and when polling the interface the ‚PRIO-flag is set in the returned interface message.
14 Real time clock“(L0(“
The real time clock is used for chronological assignment of the logger data and calibration points. Please
check the settings when necessary.
15 Universal output
The output can be used as serial interface (for USB5100 interface converter). If the output is not needed, it is
strongly recommended to deactivate it (Out oFF), to lower power consumption. This increases battery life
time.
If the device is used together with interface adapter USB 5100 the device is supplied from the interface
device pin assignment
1: external supply +5V, 50mA
2: GND
3: TxD/RxD (3.3V Logic)
4: +UDAC, analog output
Only suitable adaptor cables are permitted (accessories)!
15.1 Interface
The device can be directly connected to a PC at the USB interface, with an electrically isolated interface
converter USB 5100 (accessory). The transfer takes place via a binary coded format and is protected for
transmission errors, by elaborated security mechanisms.
The following standard software packages are available:
GSOFT3050: Operating and evaluation software for the integrated logger function
EBS20M / -60M: 20-/60-channel software for measuring value display
GMHKonfig: Configuration Software (for free on internet)
In case you want to develop your own software, we offer a GMH3000- development package including:
a universally applicable Windows functions library ('GMH3000.DLL') with documentation, can be used by
all ‘established’ programming languages, suitable for, Windows XP™,
Windows Vista™, Windows 7™, Windows 8 / 8.1™, Windows 10™
Programming examples Visual Studio 2010 (C#, C++ und VB), Testpoint™, LabVIEW™ etc.

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The device has 4 channels:
- Oxygen concentration in % Vol. O2.
- Oxygen partial pressure in hPa or mmHg.
- Temperature value at the time of recording in °C or °F.
- Absolute pressure in hPa abs or mmHg abs.
15.1.1 Supported interface-functions:
1
2
3
4
Code
Name/Function
1
2
3
4
Code
Name/Function
x
x
x
x
0
read nominal value
x
x
x
x
199
read measuring type in display
x
x
x
x
3
read system status
x
x
x
x
200
read min. display range
x
12
read ID-no.
x
x
x
x
201
read max. display range
x
x
x
22
read min alarm limit
x
x
x
x
202
read unit of display
x
x
x
23
read max alarm limit
x
x
x
x
204
read decimal point of display
x
x
x
x
176
read min. measuring range
x
208
read channel count
x
x
x
x
177
read max. measuring range
x
222
read turn-off-delay
x
x
x
x
178
read measuring range unit
x
223
Set turn-off-delay
x
x
x
x
179
read measuring range decimal point
x
240
Reset
x
x
x
x
180
read measuring type
x
254
read program identification
The measuring and range values read via interface are always in the selected display unit!
15.2 Analog output
An analog voltage 0-1 V can be tapped at the universal output socket (mode: “Out dAC”). The analog output
can be easily scaled with DAC.0 and DAC.1).
Please take care not to load the analog output too heavily, otherwise the output value will be distorted and
the power consumption will rise. Loads up to approx. 10 kOhm are unproblematic.
If the displayed value goes beyond DAC.1 the output voltage will be 1V.
If the displayed value falls below DAC.0 the output voltage will be 0V.
In error case (Err.1, Err.2, ----, etc.) the output voltage will be slightly higher than 1V.

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16 Inspection of the accuracy/ adjustments aervices
The instrument can be sent to the manufacturer for adjustment and function test.
Only the manufacturer can check all systems on correct them if necessary.
Calibration certificates –DKD-certificates –other certificates:
There it is actually not possible to certificate the device for solved oxygen measurement, only for temperature
and pressure measurement.
17 Battery change
Before changing batteries, please read the following instruction and follow it
step by step.
Not following the instruction may cause harm to the instrument or the
protection against ingress of water and dust may be lost!
Avoid unnecessary opening of the instrument!
1. Open the 3 Phillips screws at the backside of the instrument.
2. Lay down the still closed instrument, so that the display side points
upwards.
The lower half of the housing incl. the electronics should be kept lying
down during battery change.
This avoids loss of the 3 sealing rings placed in the screw holes.
3. Lift off upper half of housing. Keep an eye on the six function keys, to
be sure not to damage them.
4. Change carefully the two batteries (Type: AAA).
5. Check: Are the 3 sealing rings placed in the housing?
Is the circumference seal of the upper half sound and clean?
Close the housing, taking care that it is positioned correctly, otherwise the
sealing may be damaged. Afterwards press the two halves together, lay the
instrument with display pointing downwards and screw it together again
Take care to screw only until you feel increasing resistance, higher screwing force does
not result in higher water protection!

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18 Error and System Messages
Display
Meaning
Remedy
low battery voltage, device will continue to work
for a short time
replace battery
If mains operation: wrong voltage
replace power supply, if fault continues to
exist: device damaged
low battery voltage
replace battery
If mains operation: wrong voltage
Check/replace power supply, if fault
continues to exist: device damaged
No display
or
weird display
Device does not
react on keys
low battery voltage
replace battery
If mains operation: wrong voltage
check/replace power supply, if fault
continues to exist: device damaged
system error
disconnect battery or power supply, wait
some time, re-connect
device defective
return to manufacturer for repair
SENS
ERRO
sensor error: no sensor cable connected
connect suitable sensor
Sensor, cable or instrument defect
return to manufacturer for repair
ERR.1
Value exceeding measuring range
Check: Is the value exceeding the specified
measuring range? ->value too high!
Wrong sensor connected
Check sensor
Sensor, cable or instrument defect
return to manufacturer for repair
ERR.2
Value below display range
Check: Is the value below the specified
measuring range? ->value too low!
Wrong sensor connected
Check sensor
Sensor, cable or instrument defect
return to manufacturer for repair
ERR.7
system error
return to manufacturer for repair
If “BAT“is flashing, the battery will be exhausted soon. Further measurements are possible for short time.
If “BAT“is displayed continuously the battery is ultimately exhausted and has to be replaced. Further
measurements aren’t possible any more.
Messages During Calibration/Adjustment
>CAL<
CAL flashing in
display
either preset calibration interval has expired or
last calibration is not valid
device has to be calibrated!
[AL ERR.1
wrong reference point at air
check sensor and reference gas
[AL ERR.2
slope too low
reference gas wrong
check sensor and reference gas
sensor element is defect
replace sensor element
[AL ERR.3
slope too high
reference gas wrong
check sensor and reference gas
sensor element is defect
replace sensor element
[AL ERR.4
incorrect calibration temperature
calibration can only be done at 0…50 °C
[AL ERR.5
Zero value to low/negative
sensor element is defect
replace sensor element
[AL ERR.6
zero value to high
reference gas wrong
check sensor and reference gas
sensor element is defect
replace sensor element
[AL ERR.7
incorrect calibration pressure
check calibration pressure
[AL ERR.8
signal not stable / timeout
check sensor and reference gas
[AL ERR.9
sensor not known: cannot be calibrated
check sensor and wiring