SMR21 Submersible Water Quality Nitrate Analyzer

SMR21

Aquas Inc.

New

Nitrate Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost- saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. The Nitrate Meter housing in a robust IP68 proof enclosure, 1000 N tensile strength cable, up to 1.2 km digital data transmission, the Nitrate NO3-N and Temperature Analyzer is ideally used in water/wastewater industry.

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The Sensor measures: Nitrate
Output Signal: RS485
Cable Length: 5 meters
Sensor IP Rating IP68

The ion selective electrode continuous measurement of nitrate is carried out with speci c membrane that is selective of ammonium ion. That membrane creates charge seperation between the water surrounded electrode and internal lling solution. The charge is measured as a voltage that changes the concentration in the water adjacent the membrane. Compared with the traditional colorimetric method, there are many advantages such as fast response time, more accurate, easier and no reagents used.

■ Robust IP68 Water Submersible Enclosure, Solution Without Cabinet
■ 1 sec On-line Realtime Measurement
■ 0.05 W Ultra Low Power Consumption, Ideal for Outdoor Applications
■ Temperature Compensation
■ High Reliability, Drift Free
■ Lightening and Surge Protection for Power and RS485 Communication
■ 1.2 Km RS485 Digital Communication, Minimize Cabling and Engineering Cost
■ Software Configuration Calibration and Data Monitoring
■ Standard Modbus RTU Protocol, Direct Connected with PLC, HMI, Eliminate I/O Module Cost

Typical Application:

Type Applications Measurements Order Selections
A Source Water
(River, Reservoir)
Pressure
Level
pH
Temperature
Conductivity
Dissolved Oxygen
Turbidity
Nitrate (NO3- )
Ammonium (NH4+)
Chloride (CL-)
Nitrite (NO2-)
SMR01
SMR02
SMR04
SMR06
SMR07
SMR09
SMR10
SMR21
SMR23
SMR27
SMR28
B Ground Water Pressure
Level
pH
Temperature
Conductivity
SMR01
SMR02
SMR04
SMR06
SMR07
C Water Treatment Pressure
Level
Free Chlorine
pH
Conductivity
TDS
Turbidity
Salinity
Differential Pressure
SMR01
SMR02
SMR03
SMR04
SMR07
SMR08
SMR10
SMR11
SMR14
D Water Distribution Pressure
Level
Free Chlorine
pH
Temperature
Conductivity
TDS
Turbidity
SMR01
SMR02
SMR03
SMR04
SMR06
SMR07
SMR08
SMR10
E Wastewater Effulence Level
pH
Temperature
Conductivity
Dissolved Oxygen
Suspended Solid
Nitrate (NO3-)
Chloride (CL-)
SMR02
SMR04
SMR06
SMR07
SMR09
SMR12
SMR21
SMR27
F Fisheries, Aquarium and Aquaculture Level
pH
Temperature
Dissolved Oxygen
Turbidity
Salinity
Level
Free Chlorine
ORP
Temperature
Nitrate (NO3-)
Ammonium (NH4
SMR02
SMR04
SMR06
SMR09
SMR10
SMR11
SMR02
SMR03
SMR05
SMR06
SMR21
SMR23
G Factory, Commercial Building Conductivity
TDS
Humidity and Temperature
Differential Pressure
SMR07
SMR08
SMR13
SMR14
H Weather Humidity
Barometer
Wind Speed and direction
SMR13
SMR15
SMR24
I Environment I
(Strain, Landslide, Level)
Rain Gauge
Pyranometer
Level (water pressure)
Vibration Wire Input
Noise
SMR29
SMR30
SMR02
SMR19
SMR26

SMR21 Nitrate (NO3-N) Analyzer:


Type
Optical
Measurement range SMR21-3: 0.1~25 ppm (mg/L)
SMR21-4: 1~50 ppm (mg/L)
SMR21-5: 1~100 ppm (mg/L)
Measurement range 0.1 ppm
Accuracy ±5% of reading ±0.5 ppm in standard solution
Resolution 0.1 ppm
Repeatability ±5% of reading ±0.5 ppm in standard solution
Light Source LED 220 nm
Beam Angle 180°
Light Path Length 1 mm, 2 mm, 5 mm
Operating pressure Max. 3 Kgf/cm2
Operating pressure Max. 5 Kgf/cm22
Operating Temperature 0~85°C
Process flow rate <1 min
Response time <3 min(90%)
Protection IP68
Temperature sensor Pt100
Temperature measurement range 0~85°C
Turbidity accuracy ±5% FS
Turbidity measurement range SMR21-3: 0~10 NTU
SMR21-4: 0~100 NTU
SMR21-5: 0~100 NTU
Housing SS316L; Titanium (Optional)
Dimension Φ35x185 mm
Weight analyzer: approx. 180 g; cable: 80 g/m
PAD01 IP 67 Handheld Muptiparameter Water Quality Meter
FDC1 IP68 Field Display, 1 SMR Sensor input)
HMI1 IP66 Display Controller Logger, 2 SMR Sensor inputs
HMI2 IP66 Display Controller Logger, 4 SMR Sensor inputs
HMI3 IP66 Display Controller Logger, 8 SMR Sensor inputs
SFC01 Flow Chamber (SMR04/05/07/08/09/10/11/12/21/23/27/32/33/34/39/40/41)
SFC02 Flow Chamber (SMR43/44/45/46)
BOX01 RS485 hub(4 ports)
BOX02 RS485 hub(8 ports)
CAB12 IP68 2 ports RS485 cable

Performing the Calibrate/Check data via a Laptop:
If you are not using the AQUAS data logger, it is necessary to use Cables CAB03-A and CAB06 to do the calibrate/check data via a laptop: see below photo.

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