|
SPECIFICATIONS |
| Voltage measurements ðV and SP: |
| 4 digits with automatic ranges |
| Measuring Range |
5V |
| Resolution |
±0,01 mV |
| Inputprotection |
± 600 VDC |
| Input impedance |
10 Mohm |
| Overall accuracy |
± 2% |
| Current Measurement |
| Measuring Range |
5 A Max |
| Resolution |
0,1 mA |
| Programmable K factor |
1 to 99.99 |
| Internal Batteries |
6 V, 6 Ah rechargeable |
| Ambient Temperature |
-5°C to + 50°C |
| Dimensions |
360 x 260 x 155 mm |
| Weight |
4,5 kg |
| Number of programmable measuring cycles |
1 to 32 |
| Duration of programmable cycles |
0,48 s to 2,56 s |
|
Simplicity of operation
After a few minutes, you’ll become familiar with the instrument. Choose the mode and introduce the K factor, then press the ‘’MEASURE’’ key. Write the measurement in a notebook or enter it into the memory. |
The new resistivity meter GTR-3 combines an excellent depth penetration with a relatively low output current. It combines a numerical stacking of consecutive readings with automatic current reversal to produce a high accuracy output.
The fast sampling and continuous calculation of the running average performed by a sophisticated microprocessor allow virtual signal enhancement. This technique is generally recognized to be the best method to eliminate SP and other noises. The GTR-3 also controls the SP level within each measurement cycle in order to take into
account possible variations occuring during the measurement.
Thanks to a highcut filter and to cycle periods calculated to reject industrial frequencies, the GTR-3 can extract coherent signals from an apparently random background.
Main features
|
Display
The operator has permanent control over the measurement parameters, including the apparent resistivity calculated for a K factor previously entered through the keyboard. The operator can follow the evolution of these parameters during the measurement which can be completed immediately when results obtained are satisfactory.
Memory / RS-232 serial interface
Every parameter displayed can be saved using automatic sequential numbering after each measurement is completed. Memory size: 1000 measurements.
Data transfer capability to a PC computer via RS232 serial interface is included. |
