User manual

H61.0.01.6C-03 User’s Manual GMH3156 page 3 of 12
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GREISINGER electronic GmbH Hans-Sachs-Straße 26 Fon: 0049 - 9402 / 9383-0 http://www.greisinger.de
D-93128 Regenstauf Fax: 0049 - 9402 / 9383-33 eMail: [e-mail]
1.3 Connections
1. Output: Operation as interface: Connect to optically isolated
interface adapter (accessory: GRS 3100, GRS3105 or USB3100)
Operation as analogue output: Connection via suitable cable.
Attention: The output mode has to be configured (p.r.t. 2.8) and
influences battery life!
2. Connections for pressure sensors of the GMSD and GMXD-
family
3. The mains socket is located at the left side of the instrument
1.4 Display
Units: an arrow points to the
chosen measuring unit
SL: appears if sea-level-
correction is activated
Tara: appears if tara-function
is activated
main display: measuring value of sensor 1
secondary display: measuring value of sensor 2 or
difference sensor 1 – sensor 2
(selection with key ‚Set‘)
Logg: appears, if a logger function is chosen
1.5 Basic Operation
When switching on the device and the logger function is not off the time of the integrated clock will shortly
be displayed. Furthermore the kind of measuring is displayed (Slo/Fast/P.det, p.r.t 2.1) and "Corr", if a
Sensor with activated offset or scale correction is connected.
After changing the battery the clock-setting menu is activated automatically (‚CLOC‘). Check the clock and
adjust, if necessary (p.r.t. chapter 2).
On-/Off-Switch
Tara: Calling of tara function
min/max: Showing the min- resp. max-memory
Store/Quit: Calling of hold function resp. calling of logger functions (p.r.t. chapter 3)
Set/Menu: Choose secondary display: Sensor2 or difference sensor1 – sensor2
or calling of configuration
Tare Function: By pressing ´Tara´ (key 3) the displays will be set to 0. All measurings from then on will be
displayed relatively to the set tare values. When the tare function is activated, the arrow
"Tara" appears in the display. To deactivate tare function press ´Tara´ for >2 seconds.
Please Note: Activating/deactivating tara clears the max- & min-memories.
Max Memory: Pressing ´max´ (key 2) shows the maximums of the measured values. Pressing it again
hides them. To clear the max memories press key ´max´ for >2 seconds.
Min Memory: Pressing ´min´ (key 5) shows the minimum’s of the measured values. Pressing it again
hides them. To clear the min memories press key ´min´ for >2 seconds.
Hold Function: By pressing ´Store/Quit´ (key 6) the last measuring values will be held in the display.
Pressing it again hides them. (only when logger = ‚off‘).
Zero-Point Adjustment: If there is no pressure or zero-pressure (absolute) applied to the pressure ports the
device will display 0. If there is a permanent deviation (and device is operated under
steady conditions), a permanent zero point adjustment can be carried out. To carry out the
adjustment press button 3 for approx. 5 seconds (Auto Null will be displayed shortly).
The adjustment is done via the OFFSET-value of the sensor (referring configuration
menu).
Please note: A zero-point adjustment can only be carried out if the difference between the
value on display is less than 500 digits!
To recall the manufacturer’s calibration press button 3 for approx. 15 seconds.
Note: If a zero-point adjustment was carried out, this will be signalled by the short
displaying of „Corr“ when switching on the device.
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ON
OFF max
Tara
Storemin
Set
Menu Quit