SAC254 Sensor

LISA - SAC254 - the new low-cost state-of-the-art SAC 254 nm instrument from TriOS optical sensors. Innovative long lifetime UV-LED technology and a robust design are the key-features of LISA. Like every TriOS sensor, LISA has nano coated windows to avoid fouling. Combined with airblast cleaning service costs are reduced to a minimum. The unique TriOS G2 interface allows easy and fast 3rd party integration to existing SCADA systems or dataloggers, beside the use within the wide range of TriOS controllers and handheld devices. Additional to the digital outputs, LISA is available with direct 4..20 mA interface. LISA can be customized with optical path lengths of 1, 2, 5, 10 or 50 mm to cover almost every application. The use of a second wavelength offers automatical internal turbidity correction of the SAC value. The titanium version of LISA allows the use in very harnished environments (e.g. high chlorine concentrations).
Application depending correlations to COD, BOD or TOC can be done, offering online measurement of this parameters at a fraction of investment and service costs of other SAC254 probes or classical cabinet analysers.
 
Technical data

• Input data Parameter SAC254, CODeq, BODeq, TOCeq
• Measurement accuracy 0.2 %
  Turbidity compensation at 530 nm
  Data logger ~ 2 MB T100 response time 4 s
• Function and system design Measurement principle Attenuation, transmission Light source 2 LED (254 nm, 530 nm)
  Detector Photo diode + filter Optical path 1 mm, 2 mm, 5 mm, 10 mm, 50 mm
• Auxiliary power Interface digital Ethernet (TCP/IP), RS-232 or RS-485 (Modbus RTU, TriOS)
• Interface analog Ethernet (TCP/IP), 4...20 mA
• Power supply 12-24 VDC (± 10 %)
  Output data Power consumption < 1 W
• Environmental conditions Sample temperature +2...+40 °C
• Ambient temperature +2...+40 °C
  Inflow velocity 0.1-10 m/s

Performance characteristics

• Maintenance effort < 0.5 h/month (typical) Calibration/maintenance interval 24 months System compatibility Modbus RTU or: Analog Out (4...20 mA)
• Guarantee 1 year (EU: 2 years)
• Installation Max. pressure with SubConn 30 bar Max. pressure with fixed cable 3 bar Max. pressure in flow cell 1 bar, 2-4 L/min Protection type IP68 Structural design Housing material Stainless steel (1.4571/1.4404) or titanium (3.7035)
• Weight stainless steel ~ 1.6 kg (with 10 mm path)
• Versions item number article 14SXXXXX0 LISA-254 LISA-254 1 4 S X X X X X 0
• Path length 0.3 mm 0 1 mm 1 2 mm 2 5 mm 3 10 mm 4 50 mm 5 100 mm 6 150 mm 7 250 mm 8
• Sensor Flange None 0 DN50 1 DN80 for cleaning bond 2
• Material Stainless steel Titanium
• Interface Digital: MODBUS RTU RS232 / RS485 0
• Analogue: 4 … 20 mA 1 Connector 10 m fixed cable with M12 plug 0 SUBCONN 8pin micro 1