Table T2. Additional general specifications for Expedition 301 CORK pressure sensor and logging instrumentation.
| Parameter | Specification |
|---|---|
| Battery capacity | 30 A/h at 7.2 V, 4473 W/h |
| Communications protocol | RS-422 |
| Communication rates | 4800–230.14 kbps |
| Download protocols: |
|
| Sector based (custom) | 512 byte packets |
| Xmodem—cyclic redundancy checking | 128 byte packets |
| Xmodem—checksum | 128 byte packets |
| Streaming |
|
| Period measurement noise | <10 ppb at 800 ms integration time (1 Hz sampling) |
| Relative pressure resolution | <100 ppb full scale at 800 ms integration time (~4 Pa) |
| Temperature period measurement noise | <1 ppm at 400 ms integration time |
| Absolute pressure accuracy (temperature compensated) | <1 ppm (~40 Pa) |
| Clock accuracy | ~4 ppm (~2 min/y) |
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