CSC Product Information

Product Information - S4A

Hydrolab Surveyor® 4a Data Display

Brochure

Manual

Software and Drivers
Technical Notes

General Description

The Series 4a water quality instruments are designed to be used in fresh, salt or polluted water. The instruments measure multiple parameters simultaneously including: temperature, pH, ORP, conductivity, dissolved oxygen, depth, turbidity, total dissolved gas, ammonia, nitrate, chloride, ambient light, transmissivity, and chlorophyll a.

The Surveyor 4a provides data logging and display in a rugged, waterproof (NEMA 6) display case. Connected to either the DataSonde 4a or MiniSonde 4a, the Surveyor 4a displays water quality parameters in real time or automatically stores or downloads data. The high resolution screen displays your water quality data in real-time graphical form or tabular format. Barometric pressure and global positioning system (GPS) options are available. Two-year warranties are standard for most sensors.

Parameter Specifications

Parameter	Range	Accuracy	Resolution	Available Instrument *
Temperature	-5° to 50°C	±0.10°C	0.01°C	D, M
Specific Conductance	0 to 100 mS/cm	±1% of reading; ±0.001 mS/cm	4 digits	D, M
pH	0 to 14 units	±0.2 units	0.01 units	D, M
Dissolved Oxygen	0 to 50 mg/L	±0.2 mg/L at = 20mg/L ±0.6 mg/L at > 20mg/L	0.01mg/L	D, M
ORP	-999 to 999 mV	±20mV	1mV	D, M
Vented Level/0-10m	0 to 10m	±0.003m	0.001m	D, M
Depth/0-25m	0 to 25m	±0.05m	0.01m	D, M
Depth/0-100m	0 to 100m	±0.05m	0.01m	D, M
Depth/0-200m	0 to 200m	±0.1m	0.1m	D, M
Salinity	0 to 70 ppt	±0.2 ppt	0.01 ppt	D, M
4-Beam Turbidity	0 to 1000 NTU	±5% of reading; ±1 NTU	0.1 NTU (<100 NTU) 1 NTU (=100 NTU)	D
Self-Cleaning Turbidity	0 to 3000 NTU	±1%, up to 100 NTU ±3%, 100-400 NTU ±5%, 400-3000 NTU	0.1, up to 400 NTU 1.0, 400-3000 NTU	D
Ammonium/ Ammonia	0 to 100 mg/l-N	greater of ±5 of reading or ±2 mg/l-N (typical)	0.01 mg/l-N	D, M
Nitrate	0 to 100 mg/l-N	greater of ±5 of reading or ±2 mg/L-N	0.01 mg/L-N	D, M
Chloride	0.5 to 18,000 mg/L	greater of ±5 of reading or ±2 mg/L	4 digits	D, M
Total Dissolved Gas	400 to 1300 mmHg	±0.1% of span	0.1mmHg	D, M
Ambient Light	0 to 10,000 µmols^-1m^-2	±5% of reading or ±1µmol s^-1m^-2	1µmol s^-1m^-2	D
Chlorophyll a	0.03 to 150 µg/L	±3% of reading ±0.1µg/L	0.1µg/L	D
Barometric Pressure	500 to 850 mmHg	±10 mmHg	0.1 mmHg	S
Global Positioning System	-90 to 90° Latitude -180 to 180° Latitude	25 m CEP (50%) without SA and DGPS 2m CEP (50%) with DGPS	0.1"	S

* D = DataSonde 4a, M = MiniSonde 4a, S = Surveyor 4a

Questions? Please refer to the email address in this graphic if the adjacent link does not work.