CSC Product Information - MS4A (Superceded)

Product Information - MS4A (Superceded)

Superceded By - MS5

Hydrolab MiniSonde® 4a Multiprobe SE

View exposed battery compartment.

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, and chlorophyll a.

The MS4A has four built-in ports. Upgrading is easy and you can add new sensors as needed. At 1.75in (4.4cm) in diameter, the MS4A is portable and fits down 2in ground water wells. Both units are available with battery packs and memory to use for long-term monitoring and profiling applications. Data can be downloaded to the Surveyor 4a, or directly to a PC without using proprietary software.

At the heart of the MS4A is superior sensor technology. Hydrolab's pH and ORP sensors come with a separate reference electrode, field replaceable in just seconds saving you time and money. Our dissolved oxygen sensor provides a continuous, steady state stream of data, and our conductivity sensor features graphite electrodes which will not corrode. 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

Physical Specifications

	Length	Diameter	Weight
with weighted sensor guard	21 in 53.3 cm	1.75 in 4.44 cm	2.2 lbs .99 kg
with internal battery pack:	24.5 in 62.2 cm	1.75 in 4.44 cm	2.46 lbs 1.11 kg
with extended battery pack:	29.5 in 74.9 cm	1.75 in 4.44 cm	2.90 lbs 1.31 kg

Maximum Immersion Depth:	200 meters
Operating Temperature Range:	-5° to 50°C

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