Organic Analyzer
PAH Analyzer

SMR37 Series

Oil in Water Analyzer

Oil in Water Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost-saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. Polycyclic Hydrocarbons Analyzer housing in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the PAH Analyzer is ideally used in water/wastewater industry.
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  • All-in-One Compact Housing, Built-in Transmitter and Sensors
  • Robust IP68 Water Submersible Protection, Directly Installed in the Field, No Cabinet Required
  • Plug & Play, On-line Realtime Measurement
  • Ultra Low Power Consumption, Ideal for Outdoor Applications
  • 1500 N Tensile Strength Kevlar Reinforced Cable
  • Surge Protection for Power and RS485 Communication
  • RS485 Digital Communication, Minimize Cabling and Engineering Cost
  • Standard Modbus RTU Protocol, Direct Connected with PLC, HMI
  • Sapphire Glass Windows to Prevent Scratch
  • Innovative Nano Coating to Remain Window Clean
  • Auto Cleaning Wiper, Less Maintenance
  • Onboard Memory Allowing Users Easily Calibrate and Configure Sensor at Lab and Distribute to Various Fields Sites
  • AQCFG Software Tool for Data Monitoring, Calibration , Configuration and Diagnosis
Drinking water, surface water, industry, water treatment, wastewater
  • Output Signal: RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit; 4~20 mA
  • Data Resolution: 16 bits (0.001% FS)
  • Surge Protection: 4000 V DC
  • Power: 12 VDC ±10%, 0.5 A (SMR37-1~2); 5~12 VDC, 300 mA (SMR37-4~5)
  • Protection: polarity, overload, short circuit
  • Safety: CE, FCC
Measurement Method
It is based on fluorescent optical technology. A fluorometer generates the wavelength of light required toexcite the analyte of interest, it selectively transmits the wavelength of light emitted, then it measures the intensity of the emitted light. The emitted light is proportional to the concentration of the analyte being measured.

SMR37-1~2 Polycyclic Hydrocarbons Analyzer
Parameter PAHs (Naphthalene, Acenaphthylene, Acenaphthene, Fluorene, Phenanthrene, Anthracene, Fluoranthene, Pyrene )
Measurement range SMR37-1: 0~50/500 μg/L
SMR37-2: 0~500/5,000 μg/L
Accuracy ±5% measured value
Resolution 0.1 μg/L
Repeatability ±3% measured value
Light source Xenon flash lamp
Operation pressure Max. 10 Kgf/cm2
Operating temperature 0 ~ 50 °C
Process flow rate 0.1~10 m/s
Response time 10 secs
Measurement interval 10 ~ 600 sec (adjustable)
Protection IP68
Connection 5-pin M16 plug
Housing SS316L; Titanium
Dimension Φ 68 x 301 mm
Weight analyzer: approx. 2.2 Kg (SS316L); approx. 1.7 Kg (Titanium) 
cable: 80 g/m
SMR37-4~5 Oil in Water Analyzer
Type SMR37-4: Refined Oil (Petroleum, Kerosene, Diesel Oils, Heavy Oils, Lubrication Oils )
SMR37-5: Crude Oil
Measurement range 0~150 mg/L(SMR37-4)
0~1,500 μg/L(SMR37-5)
Accuracy ±5% measured value
Resolution 0.1 μg/L
Repeatability ±3% measured value
Light source LED 285 nm (SMR37-4)
LED 365 nm (SMR37-5)
Operation pressure Max. 10 Kgf/cm²
Operating temperature 0 ~ 50 °C
Process flow rate Max. 3 m/s
Response time 3 secs
Protection IP68
Connection 3/4”-14 PT; 5-pin M12 plug
Housing SS316L; Titanium
Dimension Φ 34 x 226 mm
Weight analyzer: approx. 500 g (SS316L); 400 g (Titanium)
cable: 80 g/m