GREISINGER GDH 200-14 User manual

H55.0.31.6C-05
from Version 1.1 GDH 200-14
Operating Manual Vacuum- / Baro- / Manometer

H55.0.31.6C-05 Operating Manual GDH 200-14 page 2 of 8
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Content
1INTENDED USE..........................................................................................................................................3
2GENERAL ADVICE...................................................................................................................................3
3SAFETY INSTRUCTIONS........................................................................................................................3
4OPERATION NOTES.................................................................................................................................3
5OPERATION...............................................................................................................................................4
5.1 DISPLAY ELEMENTS .................................................................................................................................4
5.2 PUSHBUTTONS ..........................................................................................................................................4
6STARTING...................................................................................................................................................4
7PRESSURE CONNECTION......................................................................................................................4
8MIN-/MAX- VALUE MEMORY...............................................................................................................5
9ZERO-FUNCTION (RELATIVE MEASURING)...................................................................................5
10 GENERAL INFORMATION ON ABSOLUTE PRESSURE MEASUREMENT.............................5
11 CONFIGURATION OF THE DEVICE.................................................................................................6
12 ADJUSTING OF THE INSTRUMENT.................................................................................................7
13 NOTES TO THE CALIBRATION SERVICES....................................................................................7
14 ERROR AND SYSTEM MESSAGES....................................................................................................7
15 SPECIFICATION ....................................................................................................................................8
16 DISPOSAL NOTES..................................................................................................................................8

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1 Intended use
The device measures the absolute pressure of air or non corrosive / non ionizing gases.
Either the ambient air pressure can be measured or the measuring pressure is connected with a
suitable tube to the connecting nozzle.
Relative measurements can also be realized via the integrated Zero-function.
Field of application
Barometric measurements (weather)
Vacuum measurement (down to 1 mbar abs)
Overpressure measurements pneumatics, tyre pressure
etc.
The pressure connection has to be done adequately! At higher pressures the connection
tube has to be locked. Please refer to chapter „Pressure Connection“.
The safety instruction (see chapter 3) have to be observed.
The device must not be used for purposes and under conditions for that the device had not been
designed.
The device must carefully dealt with and has to be used according to the specifications (do not
throw, knock, etc.). It has to be protected against dirt.
2 General advice
Read through 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.
3 Safety instructions
This device has been designed and tested in accordance to 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 it.
1. Trouble-free operation and reliability of the device can only be guaranteed if it is not subjected to
any other climatic conditions than those stated under “Specification”.
Transporting the device from a cold to a warm environment condensation may result 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.
2. Whenever there may be 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 or 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. Warning: Do not use this product as safety or emergency stop device, 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.
4 Operation notes
If the symbol "LOBAT” is displayed at the left side of display, the battery is weak, measuring
can be continued for a short period. If “BAT“ is displayed in the main display the battery is used
up and needs to be replaced. Measuring is no more possible.
The battery has to be removed, when storing device above 50 °C.
Hint: We recommend removing the battery if device is not used for a longer period of
time! Risk of leakage!

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5 Operation
5.1 Display elements
1: Main display
Display of current measuring value or of
minimal measured value (“Lo” blinking) or
maximal value (“Hi” blinking)
LOBAT
Indicates low battery
5.2 Pushbuttons
on/off:
on/off switch, press key long to switch device off
mode:
press short: changes between actual measuring
value, the minimal measured value (“Lo” blinking) and
maximal measured (“Hi” blinking) value.
press >2s: reset Min and Max value
zero:
press >2s: activates / deactivates the “Zero-function“
6 Starting
Switch the device on with button .
After the segment test ( ) the device displays some information to its current configuration:
OFFS, if offset correction is active
, if scale corrections active
Unit of meas. value: nbAr (=mbar) | bar | PSI | nnHg (=mmHg)
SEA.L, if sea-level correction is active
P.OFF, if auto power-off is active
Afterwards the device is ready for measuring.
7 Pressure Connection
The pressure is connected to the instrument via the front side pressure port. This is optimised for
the connection of 6x1 mm (4 mm inner diameter) tubes.
Suitable tubes are:
PVC up to 5 bar rel.
PE up to 10 bar rel.
PUR up to 9 bar rel.
At pressures above 2 bar rel. the tube should be locked e.g. by means of a cable strap or a hose
clamp.
PUR tube and hose clamp
Up to 2 bar rel.
Above 2 bar rel: lock with
clamp

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8 Min-/max- value memory
Display MIN-value (Lo): Press button mode shortly Display changes between „Lo‟ and min-value
Display MAX-value (Hi): Press mode shortly again Display changes between „Hi‟ and max-value
Display actual value again: Press mode shortly again Actual value is displayed
Delete MIN/MAX: Press button mode for 2 s MIN&MAX are deleted. „CLr‟ (Clear) is displayed
shortly
The Min-/max- display is automatically set to actual value display after 10 s.
The Min-/max- values are deleted if the device is switched on after it had been turned off.
9 Zero-function (relative measuring)
With help of the Zero-function relative measurements can be realized: press “zero“-button for 2s.
“NULL“ is displayed shortly and the displayed value is set to 0. Press again “zero“ for 2s to display
the absolute value again.
Note: Setting and resetting the Zero function will delete your min-/max- value memory.
Field of application: e.g. tyre pressure measurement, pneumatic measuring up to 10 bar rel.
10 General information on absolute pressure measurement
The device measures the absolute pressure. This must not be confused with the pressure at sea
level display by weather stations. There the pressure loss due to height above sea level is
deducted. The device is also able to perform this sea-level correction on the displayed air pressure.
Therefore (Sea Level correction) has to be activated (= “on”) and the current height above
sea level (ALTI = Altitude in [m]) has to be entered at the configuration.

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11 Configuration of the device
Follow this instructions to configure the functions of the device:
Switch the device off.
Press mode button and keep it pressed. Turn the device on. Release the mode button after the
segment test ( ) finished. The first parameter “P.OFF“ is displayed.
If a parameter should be changed press key up or down ( ) the present setting of the
parameter will be shown and can be changed via up/down keys.
The parameter setting is confirmed by pressing .
Jump to the next parameter with .
Parameter
value
information
button
buttons
P.OFF
Auto Power-Off (turn-off delay) factory setting: 20 min.
1 …120
Auto Power-Off (turn-off delay) in minutes. If no key is pressed for the
time adjusted in this parameter, the device is automatically switched off to
safe battery power. (adjustable range 1 to 120 min)
OFF
automatic power-off is deactivated (continuous operating)
UNIT
Unit and range of display factory setting: nbar=mbar
PSI
0 … 160.00 PSI, resolution 0.02 PSI
nnHG
0 … 8250 mmHg, resolution 1mmHg
nbAr
0 … 11000 mbar, resolution 1 mbar
bAr
0 … 11.000 bar, resolution 0.001 bar
Sea-level correction factory setting: off
OFF
Sea-level correction off
ON
Sea-level correction on
ALTI
Altitude input for sea-level correction factory setting: 340
-500 … 9000
-500 … 9000 m selectable
INIT
Restore to factory settings
NO
Settings are kept
YES
Restoring device to factory settings
Pressing again stores the settings, the instruments restarts (segment test)
Please note: If there is no key pressed within the menu mode within 2 minutes, the
configuration will be cancelled, the entered settings are lost!

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12 Adjusting of the instrument
To adjust the instruments according to your needs proceed like follows:
Switch instrument off.
Press zero button and keep it pressed. Turn the device on. Release the mode button after the
segment test ( ) finished. The first parameter “SCL“ is displayed.
If a parameter should be changed press key up or down ( ) the present setting of the
parameter will be shown and can be changed via up/down keys.
The parameter setting is confirmed by pressing .
Jump to the next parameter with .
Parameter
value
information
button
buttons
Offset of sensors factory setting: off
OFF
-5.0 … +5.0
Selectable -5.0 … +5.0
Scale correction factory setting: off = 0%
OFF
-5.00 … +5.00
Adjustment in %
Pressing again stores the settings, the instruments restarts (segment test)
Please note: If there is no key pressed within the menu mode within 2 minutes, the
adjusting will be cancelled, the entered settings are lost!
13 Notes to the calibration services
Calibration certificates - DKD-certificates - other certificates:
If device should be certificated for its accuracy, it is the best solution to return it with the referring sensors to
the manufacturer. (please state desired test values, e.g. 1bar abs)
Only the manufacturer is capable to do efficient recalibration if necessary to get results of highest accuracy!
14 Error and system messages
ERR. 1
measuring range has been exceeded
ERR. 2
measured value has fallen below permitted range
ERR. 3
display range has been exceeded (>19999)
ERR. 4
measuring value has fallen below displayable range (< -1999)
ERR. 7
System fault - the device has detected a system fault (defective or far outside allowable
ambient temperature range)
---
Sensor error or value could not be calculated
If the symbol “LOBAT” is displayed at the left side of display, the battery is weak, measuring can be
continued for a short time.
If “BAT” is displayed in the display the battery is used up and needs to be replaced. Measuring is no
more possible.

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15 Specification
Measuring range
air pressure:
0 ... 11000 mbar abs., resolution 1 mbar
0 ... 11.000 bar abs., resolution 0.001 bar
0 ... 8250 mmHg abs., resolution 1 mmHg
0 ... 160.00 PSI abs., resolution 0.02 PSI
Measuring media:
non corrosive gases
Max. overload:
13 bar abs.
Accuracy: (±1 digit)
+/- 3 mbar or +/- 0.10 % of m. v. typ., whichever is higher (at nominal
temperature 25°C)
+/- 0.30 % FS temperature influence 0 to 50°C
Pressure connection:
connecting nozzle made of nickel-plated brass on top of the device,
for tubes 6x1mm (4mm innerØ), approx. 11mm projecting
Measuring frequency:
1 measurement per second
Offset and scale:
digital offset and scale adjustment for air pressure measurement
Min-/max-value memory:
min- and max- value are stored
Sea level correction:
The displayed value can be referenced to sea level. Therefore the
current height above sea level has to be entered.
Zero-function:
relative measurement: the displayed value is set to “zero”
Display:
approx. 13 mm high, 4½-digit LCD display
Pushbuttons:
3 membrane keys for on/off, min-/max-value request, offset adjustment
Working conditions:
-25 to 50 °C; 0 to 80 % RH (non condensing)
Storage temperature:
-25 to 70 °C
Power supply:
9V-battery, type 6F22 (included in scope of delivery)
Current consumption:
ca. 60 µA (Operating time with standard zinc-carbon battery >7500
hours
Display for weak battery:
automatically if battery consumed "BAT", warning: "LOBAT"
Auto-off function:
If activated: device will be automatically switched off if not operated for
longer time (selectable 1..120min)
Housing:
impact resistant ABS housing, front side IP65
Dimensions:
approx. 106 x 67 x 30 mm (H x W x D) , without connecting nozzle
Weight:
approx. 135 g incl. battery
EMC:
The device corresponds to the essential protection ratings established
in the Directives of the European Parliament and the council on the
approximation of the laws of the member states relating to the
electromagnetic compatibility (2004/108/EG). Additional error: <1%
16 Disposal notes
Dispense exhausted batteries at destined gathering places.
This device must not be disposed as “residual waste”.
To dispose this device, please send it directly to us (adequately stamped).
We will dispose it appropriately and environmentally friendly.