Current Meter Aanderaa RCM 7
From OceanWiki_EN
This is a self-contained instrument that can be moored in the sea and records ocean current, water temperature, and conductivity of the water.
The Recording Current Meter RCM 7 consists of a recording unit, containing all sensors, equipped with a rod, that permits the instrument to swing freely and align with the current.
Self balancing bridge with sequential measuring of 6 channels (Reference, Temperature, Conductivity (optional), Pressure (optional), Direction and Speed). 10-bit binary word for each channel.
| Title | Value |
| Temperature - Selectable Ranges: | Low Range: -2.46 to 21.48° C
Wide Range: -0.34 to 32.17° C High Range: 10.08 to 36.04° C Resolution: 0.1% of selected range Accuracy: ± 0.05° C |
| Conductivity (optional) | Range: 0 to 74 mmho/ccm
Resolution: 0.1% of range Accuracy: + .0.1 of range |
| Direction | Sensor Type: Magnetic compass with needle clamped onto potentiometer ring.
Resolution: 0.35° Accuracy: +5° for speeds from 5 to 100 cm/s. + 7.5° for current speeds 2.5 to 5 and 100 to 200 cm/s. |
| Speed | Sensor Type: Rotor with magnetic coupling
Range: 2 to 295 cm/s Accuracy: + 1 cm/s or +2% of actual speed, whichever is greater. |
| Recording System | DSU 2990 10900 records
DSU 2990OE 43600 records |
| Telemetry | Acoustic 16.384 khz + 5 Hz |
| Battery | Leclanche 821 - 9v 2.2 Ah sufficient for 7716 records (53 days at 10 min. intervals).
Lithium 3382 - 7.2 v 10-14 Ah sufficient for 30835 records (214 days at 10 min intervals). |
| Depth | 2000m |
producer - http://www.aadi.no
