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Aquas - Model SMR78 Series - ...

Aquas - Model SMR78 Series -Transparency Algae Analyzer

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The Transparency Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost-saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. Transparency Meter in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the transmitter is ideally used in water/wastewater industry.

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Robust IP68 Water Submersible Enclosure, Solution Without Cabinet
On-line Realtime Measurement
Ultra Low Power Consumption, Ideal for Outdoor Applications
High Reliability, Drift Free
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
Sapphire Glass Windows to Prevent Scratch
Innovative Nano Coating to Remain Window Clean
Optional Auto Cleaning Wiper, Almost No Maintenance
Onboard memory allowing users to easily calibrate and configure sensor at lab and distribute to various fields sites

Measurement range: 0~2 m
Accuracy: ±5% FS
Resolution: 1 mm
Repeatability: ±3% FS
Light source: LED 880 nm
Beam angle: 180°
Process flow rate: 0.1~10 m/s
Operation pressure: Max.5 Kgf/cm²
Operating temperature: 0 ~ 45 °C
Response time: 1 sec
Protection: IP68
Housing: SS316L
Dimension: Φ 39Χ344 mm
Weight:

analyzer: approx. 0.7 Kg
Cable: 80g/m

Output Signal: RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit; 4~20 mA (optional)
Data Resolution: 16 bits (0.001% FS)
Surge Protection: 4000 V DC
Power: 3.6~12 VDC ±10%, 45 mA
Protection: polarity, overload, short circuit
Safety: CE, FCC

Typical Applications

Surface water

Measurement Method

The analyzer consists of a light source, a sample cell, and a light detector (photo detector). Incident light is absorbed by the sample, and the light is measured by the detector. The value depends on the amount of absorbance in the sample. The transmitter uses a long life LED and the 180° light method. An automated mechanical wiper is to remain surface clean and remove air bubbles of the optical window in order to maximize the accuracy and minimize the maintenance requirement.