STD/CTD - model SD204
 ST204 with sensors
from keyboard. A sealed battery compartment contains two replaceable C-cells. In practical operation the battery capacity is sufficient for continuous year-around operation with good margin.
The instrument is equipped with a mooring bar with a shackle at each end. Data are recorded in physical units and simultaneously transmitted via an RS232 I/O watertight connector for on-line use.
For remote readout and monitoring, the manufacturer offers several options:
Communication Unit CU901, for two-way communication via Iridium satellite, GPRS with embedded web server, GSM and UHF/VHF.
Download data sheet as PDF
Specifications
| Conductivity: |
Inductive cell |
| Range: |
0 to 70 mS/cm |
| Resolution: |
0.01 mS/cm |
| Accuracy: |
+/- 0.02 mS/cm |
Salinity: |
Calculated from C,T & D |
| Range: |
0 to 40 ppt |
| Resolution: |
0.01 ppt |
| Accuracy: |
+/- 0.02 ppt |
Temperature: |
|
| Range: |
-2 to +40°C |
| Resolution: |
0.001°C |
| Accuracy: |
+/- 0.01°C |
Response time:
Pressure: |
0.2 sec
Specify desired depth range |
Ranges: |
with order
500, 1000, 2000, -- 6000 m |
Resolution:
Accuracy: |
0.01 dbar (m)
+/- 0.01% FS |
| Response time: |
0.1 sec |
Sound Velocity:
Range:
Resolution:
Accuracy:
Dissolved oxygen:
Sensor type:
Range:
Resolution:
Accuracy:
Fluorescence:
Sensor type:
Ranges:
Resolution: |
Calculated from S,T & D
1300 to 1700 m/s
1cm/s
+/- 5 cm/s
(optional)
SAIV205
0 to 20 mg/l
0.01 mg/l
+/- 0.2 mg/l
(optional)
Fluorescein/Chlorophyll/
Rhodamine/CDOM
2.5, 7.5, 25, 75 ug/l
selectable/autorange
0.03 µg/l |
| |
| Turbidity: |
(optional) |
| Sensor type: |
Backscatter |
| Ranges: |
12.5, 62.5, 250, 750 FTU
selectable /autorange |
| Linearity: |
< 2% |
Real time clock: |
+/- 2 sec/day |
Modes: |
STD/CTD with/without sound velocity, oxygen and optional sensor. |
Intervals: |
1 sec to 180 min. |
Memory: |
CMOS SRAM |
| Capacity: |
56000 data sets of STD/CTD |
Data output: |
RS232 ASCII code.1200-9600 baud,
1 start, 7 data, 1 stop, even parity or
1 start, 8 data, 1 stop, no parity
selectable via menu |
Power: |
2 ea. 3.6V lithium C-cells. |
|
Recommended type: SAFT LSH14 (Sufficient for 1.500.000 data sets) |
External:
Material: |
10-30VDC
Vacuum molded polyurethane and titanium
|
|
Dimension: |
Length 400 mm. Diameter 60 mm
|
| Weight: |
In air: 2 kg. In water: 0.8 kg.
|
| Packing: |
Suitcase (534x427x157 mm)
Grossweight 5,5 kg |
|
Accessories:
(included) |
On/Off magnetic key,
PC communication cable 2,5m, MINISOFT SD200W program and Operating Manual |
Warranty: |
Two years against faulty materials and workmanship | |
|
