| Number of
channels |
6 |
| A/D resolution |
24 bit |
| Signal bandwidth |
DC to 20 KHz with three
selectable low pass filters (10 Hz, 1 KHz, and 20 KHz), additional low
pass filter with half of the sampling rate is implemented inside
24-bit sigma-delta A/D |
| Sampling rate |
Up to 100 KHz |
| Input impedance |
> 1.0 M Ohm |
| Input signal level |
-2.5 ~ +2.5 V, with input
signal level from -9.0 V to +9.0 V |
| Signal Gain |
12 different gain
settings from 1 to 2,560 |
| DC offset removal |
Each channel has its own
16-bit D/A to remove external DC offset from -9.0 V to +9.0 V |
| Timing control |
GPS synchronized |
| Wireless network |
Long range wireless up to
8 Km (5 miles) depending on terrain or unlimited with relaying mode |
| Data saving and retrieving |
Data is saved to SD card;
the files can be retireved from SD card or directly copied to PC
through USB mass storage mode without removing SD card |
| Data monitoring |
Data can be read back
through USB port or wireless network for real-time status monitoring
and quality check |
| On-board temperature
measurement |
Yes |
| Power supply |
External +7.5 ~ 32 Vdc
supply or internal 12V battery; typical power consumption about 5 W. |
| Temperature rating |
-20° to 50° C |
| Digital interface |
UART interface for
digital flux gate or other digital acquisition system |
| Customized digital interface |
Digital interface can be
customized to accomodate additional cutomer timing and digital
interface requirements |
