Greisinger GDUSB 1000 Universal USB Interface Adapter for GMSD Pressure Sensors 601666 Manual De Usuario

S56.0.01.6C-04 

 

page 4 of 7 

 

After restart the adapter is in the standard-mode. 

In this mode the GDUSB1000 acts like a portable measuring instrument of the GMH3xxx-series.  
It gives back the wanted measurement on request. 
For this purpose 4 measuring channels are allocated at the adresses 1 – 4: 
1   Measurand: 

with adjustable low-pass filter (0.00 ... 10.00) 

2   Average:   

the average between two measuring-points 

3   Minimal peak: 

lowest measurand for the last request; unfiltrated, with highest sample rate 

4   Maximal peak: 

highest measurand for the last request; unfiltrated, with highest sample rate 

 
The communication can occur with every standard software for the GMH3xxx or 

 (e.g. 

EBS9M) and offers the possibility to monitor long-run measurements of pressure for example. 

For the integration in your own programs, we offer you the function-library EASYBUS.DLL. 
This operating mode is especially adapted for the measuring of 1 measurand per second. 

For example: long-run measurements of pressure, leakage test,... 

The device can be set to the mode “fast measurand display” via command. In this mode the measure-
ment is started by a trigger condition. Then the device automatically gives back the measurands in the 
adjusted cycle time without any request, until the stop condition is fulfilled. 

Adjustable parameters are among other ones: 

Cycle time:  

1ms ... 10sec.; programmable in steps of ms 

Measuring channel: 

cycle < 5 ms   it is possible to choose the recording channel (measurand, min. 
peak, max. peak) 

 cycle 

> 5 ms   all four measuring channels are recorded automatically 

Trigger conditions: 

5 for the measuring start   

 

 

 

6 for the measuring stop 

Pre-trigger: 

50 data sets (at a cycle time of 

≥ 5ms) respectively 200 measurands (cycle 

time < 5 ms) 

 
For the communication and configuration of the device in this mode the software GSOFT-USB is nec-
essary. 
This mode is especially adapted for measuring very fast pressure changes (1000 per second) 
For example: detecting pressure peaks at switching operations, ....