GREISINGER GMH 5130 User manual

H82.0.01.6C-02
GREISINGER electronic GmbH
D - 93128 Regenstauf, Hans-Sachs-Straße 26
+49 (0) 9402 / 9383-0 +49 (0) 9402 / 9383-33 [email protected]
WEEE-Reg.-Nr. DE 93889386
as of version 1.0 GMH 5130
Operating Manual
Handheld Pressure-Meter
water-proof

Please carefully read these instructions before use!

Please consider the safety instructions!

Please keep for future reference!

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Index
1GENERAL NOTE......................................................................................................................................................3
2SAFETY......................................................................................................................................................................3
2.1 INTENDED USE.......................................................................................................................................................3
2.2 SAFETY SIGNS AND SYMBOLS................................................................................................................................3
2.3 SAFETY GUIDELINES..............................................................................................................................................3
3PRODUCT SPECIFICATION..................................................................................................................................4
3.1 SCOPE OF SUPPLY ..................................................................................................................................................4
3.2 OPERATION AND MAINTENANCE ADVICE..............................................................................................................4
4HANDLING................................................................................................................................................................5
4.1 DISPLAY ELEMENTS...............................................................................................................................................5
4.2 PUSHBUTTONS.......................................................................................................................................................5
4.3 CONNECTIONS .......................................................................................................................................................5
4.4 POP-UP CLIP...........................................................................................................................................................6
5START OPERATION................................................................................................................................................7
6CONFIGURATION...................................................................................................................................................7
7REMARKS TO SPECIAL FEATURES ..................................................................................................................8
7.1 DIFFERENT PRESSURE UNITS ................................................................................................................................8
7.2 DIFFERENT KINDS OF MEASURING.........................................................................................................................8
7.3 WATER DEPTH /LEVEL MEASUREMENT.................................................................................................................9
7.4 SEA-LEVEL CORRECTION FOR ABSOLUTE PRESSURE SENSORS..............................................................................9
7.5 AVERAGING FUNCTION..........................................................................................................................................9
8OUTPUT ...................................................................................................................................................................10
8.1 INTERFACE...........................................................................................................................................................10
9INPUT ADJUSTMENT...........................................................................................................................................10
10 PRESSURE CONNECTION TO THE SENSORS............................................................................................11
11 ACCURACY CHECK / ADJUSTMENT SERVICE ........................................................................................11
12 REPLACING BATTERIES.................................................................................................................................11
13 ERROR AND SYSTEM MESSAGES................................................................................................................12
14 RESHIPMENT UND DISPOSAL.......................................................................................................................12
14.1 RESHIPMENT ....................................................................................................................................................12
14.2 DISPOSAL INSTRUCTIONS.................................................................................................................................12
15 SPECIFICATIONS...............................................................................................................................................13

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1 General Note
Read this document carefully and get used to the operation of the device before you use it. Keep this
document within easy reach near the device for consulting in 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.
2 Safety
2.1 Intended Use
This device must only be used with one “GMSD… - K51”or “MSD … ..E”pressure sensors.
Other usages are not intended.
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.
2.2 Safety signs and symbols
Warnings are labeled in this document with the followings signs:
DANGER
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 point out processes which can indirectly influence
operation or provoke unforeseen reactions at non-observance.
2.3 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.
1. 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 "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.

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

2. 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.
3. When connecting the device to other devices the connection has to be designed most thoroughly as
internal connections in third-party devices (e.g. connection GND with protective earth) may lead to
undesired voltage potentials that can lead to malfunctions or destroying of the device and the connected
devices.
This device must not be run with a defective or damaged power supply unit.
Danger to life due to electrical shock!
4. 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.
5. This device must not be used at potentially explosive areas! The usage of this device at
potentially explosive areas increases danger of deflagration, explosion or fire due to
sparking.
3 Product Specification
3.1 Scope of supply
The scope of supply includes:
GMH 5130 with 2 AAA batteries
Operation manual
Short form manual
3.2 Operation and maintenance advice
1. 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: p.r.t. chapter 12.
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 of time.
After recommissioning the real-time clock has to be set again.
2. Mains operation
The output voltage of a connected power supply unit has to be between 4.5 and 5.5 V DC.
Don’t apply overvoltage!
3. Treat device and sensor carefully. Use only in accordance with above specification. (do not throw, hit
against etc.). Protect plug and socket from soiling.
4. Connecting/changing sensors
Use only sensors of GMSD ... - K51 or MSD - series!
Other sensors may lead to damage to the device and the sensor.
Switch off device before changing the sensor.
The sensors are coupled to the instrument via bayonet connectors
To connect a sensor, plug in the connector in the right position and then rotate the ribbed ring ½ turn.
To disconnect rotate the ribbed ring ½ turn and then pull out the connector.
_DANGER
_DANGER
_DANGER
_DANGER

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4 Handling
4.1 Display elements
1
Main display: measuring value
2
Secondary display: display of minimum / maximum /
memorized measuring value
3
Arrows for selected measuring unit
4
Rating of battery status
5
Display elements to show minimum / maximum / memorized
measuring value as well as tare-function and sea-level-
correction
6
user arrow: measuring value is shown in freely adjustable
user-unit (please refer to chapter 7.1)
7
corr arrow: zero-point or slope correction is active
4.2 Pushbuttons
On / off key, backlight
press shortly: activate backlight or switch on instrument
press longer: switch off instrument
set / menu:
press for 2 sec. (menu): invoke configuration menu
min / max:
press shortly: min. or max. value is displayed
press for 2 sec: the corresponding value is deleted
press shortly: tare-function: display is set to 0. All measuring
values are displayed relatively to this set tare-
value from now on.
press for 2 sec: deactivate tare-function
store / enter:
hold and save current measuring value (‘HLD’ is displayed)
(Set/Menu: confirm settings, return to measuring)
4.3 Connections
Universal output: interface, supply, analog output
(p.r.t. chapter 8)
7-pole bayonet connector: connection for 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 Start Operation
Connect sensors, turn device on via key.
After segment test the device displays some configuration:
if standard measurement is selected
if fast measurement is selected
if peak value detection is selected
After that the device is ready for measuring.
6 Configuration
Some menu points depend on current device settings.
To change device settings, press “menu” for 2 seconds. This will activate the configuration menu (main
display: “SEt”). Pressing “menu” changes between the menus points, pressing jumps to the
referring parameters, which can be selected with key .
The parameters can be changed with or .
Pressing “menu” again jumps back to the main configuration menu and saves the settings.
“enter” finishes the configuration and returns to standard measuring operation.
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 not be saved!
Menu
Parameter
Value
Description
or
Set Configuration: General configurations
Unit: Select measuring unit
**
Arrow to bar,
mbar …
Measuring value is displayed in corresponding unit, the selectable units
depend on connected sensor
Arrow to “user”
Measuring value is displayed in freely adjustable user-unit
bar, mbar
Unit “user”: base unit
0000, 000.0,
… .0000“
Unit “user”: decimal point setting (only if user-unit selected)
-19999...19999
Unit “user”: multiplication factor
Sea Level: Sea-level correction
**
oFF
Sea-level correction off
on
Sea-level correction on (p.r.t. 7.4)
-2000 ... 9999
Sea-level in [m]
**
Rate: Measuring rate
Slo
Slow measuring rate (4 Hz filtered, low power consumption)
FASt
Fast measuring rate, filtered (1000 Hz)
P.dEt
Peak detection: fast measuring rate, unfiltered (1000 Hz)

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Averaging Filter
1 … 120
Averaging period in seconds
oFF
Averaging function is deactivated
Auto Power-Off: Select power-off delay
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.
oFF
Automatic power-off function deactivated (continuous operation)
Background illumination
oFF
Illumination deactivated
5 … 120
Turn off illumination after 5 … 120s (factory settings: 5 s)
on
Illumination always on
Set Output: Universal output adjustments
oFF
Interface and analog output off
SEr:
Serial interface activated
01, 11..91
Base address for serial interface communication
(only at Out = SEr)
Set Corr: Input adjustment
Zero adjustment/offset of sensors
oFF
No zero adjustment of sensors
Sensor dep.
e.g.-5.00..5.00 mbar
The offset of sensor will be displaced by this value to compensate for
deviations of the probe or of the measuring device.
Slope adjustment of sensors
oFF
No slope adjustment of sensor
-2.000 … 2.000
The slope of sensor will be changed by this factor [%] to compensate
deviations of probe or measuring device
(**) Parameter can only be called if corresponding sensor is plugged.
7 Remarks to Special Features
7.1 Different Pressure Units
Depending on the connected sensors different units can be selected via menu (Unit). The measuring range
of the sensors may restrict the choice!
User-Unit
For pressure units, which are not covered by the ones printed on the display, there can be done a manual
setting for a “user-defined” unit.
Example:
To enable a GMSD 2 BR - K51 ( -1000 …2000 mbar) to display the unit kg/cm2, following settings (bold)
have to be entered:
kg/cm2
Torr
atm
at
bASE user:
bar
mbar
bar
bar
DP user:
.0000
.0000
.0000
.0000
FACt user:
1.0197
.7433
0.9869
1.0197
7.2 Different kinds of measuring
Three different kinds of pressure measuring are supported. Two of them (P.dEt and FASt) are working with
high measuring frequency of more than 1000 measurings per second.

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7.2.1 Standard measuring (slow)
Measuring rate 4 Hz, averaging and filter functions are active.
Application: Measuring of slowly changing or static pressures, e.g. measuring of leakproofness,
atmospheric pressure...
Highest accuracy, high noise immunity, low power consumption.
7.2.2 Peak detection (Peak detection)
Measuring rate >1000 Hz, the value is displayed unfiltered.
Application with logger function: Measuring of short pressure peaks or fast changing pressures with
a resolution of <1 ms. The cyclic logger function records the arithmetic mean value, the highest and
the lowest peak of the referring time interval.
Attention: higher power consumption, measuring is sensitive to noise (EMI, ...).
Measuring is sensitive to noise (EMI, ...)
and higher power consumption.
7.2.3 Fast filtered measuring (fast)
Measuring rate >1000 Hz, but the value is filtered (higher noise immunity than P.dEt, small peaks
will be filtered out), apart from that identical behavior like rAtE-P.dEt.
7.3 Water depth / level measurement

Water-proof sensors have to be used for water depth / level measurement.
Select the unit [m] for meters water column (selection mH2O) in menu “Unit“. 10 m water column (=water
depth) corresponds roughly 1 bar overpressure.
Measurings can be made e.g. like described below: (for abs. pressure sensors SL has to be deactivated)
With an abs. pressure sensor: Press ‘Tara’ when sensor is at ambient air and then bring sensor to the
depth to be measured. The display shows now the depth in [m].
With a rel. pressure sensor: bring tube connection for lower press. in contact to ambient air by means of
a tube (no water contact!) and bring the sensor with its open pressure connection for higher pressure to
water depth to be measured (display and is compensated for pressure changes in ambient air).
7.4 Sea-level correction for absolute pressure sensors
The device displays the absolute pressure. This is not necessarily the same like the values given by weather
stations! The weather stations are displaying the pressure at sea level. Usually the sensor is placed above
sea level and therefore the pressure loss resulting from the actual level above sea level has to be
considered, if the value at sea level (zero) should be measured! To correct the measuring display, activate
the “Sea-Level-Function” (SL, p.r.t. chapter 0, setting is only possible, if an abs. pressure sensor is
connected). Then enter the altitude above sea level of the sensor’s location in meters (Alti, p.r.t. chapter 6).
When activated, the display shows the SL-arrow and the device displays the pressure value at sea level.
7.5 Averaging function
The averaging function concerns the display values (LCD and interface).
The averaging integrates the measuring values during a selectable period of time and then calculates the
average display value. It is independent from the selected kind of measuring (slow, fast, peak detect).
As long as not enough values have been collected (i. e. for the selected averaging time) to calculate an
average value, the upper display shows “----“, the lower display a ‘countdown‘.
Function of min/max-value memory during averaging:
- If averaging is activated and slow measuring is selected (rAtE-Slo), the min-/max-value memory refers to
the average display value.
- If averaging is activated and fast measuring is selected (rAtE-FASt or P.dEt), the min-/max-value memory
refers to the internal measured values (fast peaks can be detected).

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8 Output
The output can be used as serial interface (for USB 5100 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.
Pin assignment:
4: external supply +5V, 50 mA
3: GND
2: TxD/RxD (3.3V Logic)
1: not used

Only suitable adaptor cables are
permitted (accessories)!
8.1 Interface
The device can be connected to a USB interface of a PC by the electrically isolated interface converter
USB 5100 (accessory). The data is transmitted binary-coded and protected against transmission errors by
complex safety mechanism (CRC).
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
EASYControl net: Universal multi-channel software for real-time recording and displaying of measuring
data; with real database
In case you want to develop your own software we offer a GMH3000-development package including:
a universally applicable Windows functions library ('GMH3x32e.DLL') with documentation, can be used
by all ‘established’ programming languages, suitable for:
Windows 2000™, Windows XP™, Windows Vista™, Windows 7™
Programming examples Visual Basic 4.0™, Delphi 1.0™, Testpoint™ etc.
The device has 3 channels:
-Channel 1: current measuring value (sensor 1) and base address
-Channel 2: min peak
-Channel 3: max peak
The measuring-/ alarm- and display range values read back from the interface are always in
the selected measurement unit (mbar, bar...)!
9 Input Adjustment
The zero point and slope of each measuring inputs can be adjusted with the parameters offset (“OFFS”) and
scale (“SCAL”).
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 “Corr” 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 –OFFS
Zero point and slope correction:
Displayed value = (measured value –OFFS) * (1 + SCAL / 100 )