- Model Serinus 57 - Total Reduced Sulphides Analyser

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Ecotech - Model Serinus 57 - Total Reduced Sulphides Analyser

The Serinus 57 Total Reduced Sulphides analyser delivers precise and reliable performance at excellent value. It uses proven UV fluorescent radiation technology and a thermal converter to measure TRS in ambient air (LDL 0.3ppb, Range 0-10 ppm). TRS is measured by converting TS to SO2 using the external HTO1000 converter and then measuring the resultant SO2 using the pulsed fluorescence technique.

The Serinus 57 TRS analyser uses the HTO1000 external converter for continuous measurement of TRS in ambient air. The Serinus range of analysers have been designed using our experience and knowledge gained from operating large air quality monitoring networks for more than 35 years. The result, instruments that integrate seamlessly into continuous monitoring networks.


 Based on the Serinus 50 which has the following approvals:

  • U.S. EPA approval (EQSA–0809–188).

  • EN approval (Sira MC 100166/03).

  • Australian Standard: AS 3580.4.1-2008.


  • Utilises Ecotech's field proven HTO1000 external TRS converter.
  • Guaranteed performance with a two year warranty.
  • Minimises time spent on site performing maintenance through superior remote instrument control, diagnostic viewing and calibration.
  • Comprehensive data logging and remote viewing of over 200 operational parameters.
  • Versatile interfacing through RS232, USB, Bluetooth, analogue and optional TCP/IP.
  • Easier setup through an intuitive menu system with “Quick Menu”, advanced GUI and a new larger keypad with tactile keys.
  • Instant display of operational status using illuminated traffic lights on the front panel.
  • Removable flash memory stores 10 years of data, including up to 12 individual parameters and event logs. Operational parameters can also be transferred to memory for easy retrieval.
  • Latest firmware updates can easily be installed using the USB flash memory drive.
  • Programming, viewing, downloading and emailing of data is made even simpler using Bluetooth connectivity combined with the “Ecotech Serinus Remote” Android App.
  • Enhanced operator safety through the use of 12VDC internal voltages.
  • Reduced cost of spare parts, accessories and consumable items through extensive use of standard components across the Serinus range.
  • Improved rack slide design makes accessing internal components and removing the analyser from a rack cabinet easy.
  • Sample pump versatility—choose either an external sample pump suitable for use by multiple analysers or the optional low power internal pump.


  • Ranges: TRS: 0-10 ppm (Autoranging)
  • Concentration display: User selectable mg/m3, μg/m3, ppm, ppb, ppt
  • Noise: < 0.15 ppb
  • Lower detectable limit: < 0.3 ppb or 0.2% of concentration whichever is greater
  • Linearity: < 1% of full scale
  • Precision: 0.5 ppb
  • Zero drift: 24 hours: < 0.5 ppb 7 days: < 0.5 ppb
  • Span drift: 7 days: < 0.5% of reading
  • Response time: 60 seconds to 95%
  • STP reference: 0°C, 20°C, 25°C at 101.3 kPa
  • Sample flow rate: 725 cc/min
  • Temperature range: 0 - 40°C
  • Power: 99-132 VAC, 198-264 VAC 47-63 Hz
  • Dimensions (wxhxd): 3.5 RU, 429 x 175 x 638 mm
  • Weight: 18 kg (analyser)


  • USB port (digital communication).
  • Bluetooth (digital communication via Android App).
  • TCP/IP Ethernet network connection (optional).
  • RS232 Port 1: Digital communication.
  • RS232 Port 2: Multidrop port.
  • Protocols: Modbus RTU/TCP, Bavarian, EC9800, Advanced.

Inputs/outputs: 25 pin I/O port

  • Menu selectable current or voltage output 0-20mA, 4-20 mA, or 0-5 VDC (opt 0-10VDC).
  • Menu selectable offset of 0%, 5% or 10%.
  • Auto-ranging from 0-50 ppb to 0-20ppm (between two user specified full scale values).
  • 3 scaleable analogue inputs, 0-5v, 160μV resolution.
  • 8 logic level digital status inputs/8 open collector digital outputs.

Data logging: Removable USB flash memory drive that stores data in the following formats:

  • Instantaneous data from: 1, 3, 5, 10, 30, or 60 minute intervals and 2, 5, 10, 30 seconds.
  • Average data from: 1, 3, 5, 10, 15, 30 minutes, 1, 4, 8, 12, or 24 hours.
  • Data storage of 10 years of 12 parameters, 1 minute data on 8 Gb memory.

Options & Accessories:

  • HTO1000 thermal catalytic converter.
  • External AC powered pump (capable of operating 3 analysers, excluding NOX).
  • Dual filter (particulate), Rack slide kit.
  • TCP/IP network port.
  • High pressure zero/span valves.
  • SO2 Scrubber
  • Printed manual—electronic manual supplied with analyser.
  • Internal long life, low power maintenance free pump (max 6 watts).
Ecotech Pty Ltd
Ecotech Pty Ltd
1492 Ferntree Gully Road,
Knoxfield , Victoria; 3180


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