G. Lufft Mess- und Regeltechnik GmbH

- Model OPUS 20E - Differential Pressure Sensor

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The Opus20E offers the highest flexibility and is excellent value for money. It allows the connection of up to 4 external temperature and relative humidity sensors, as well as 2 further analogue sensors. Intelligent BUS sensors can be integrated. Air flow and differential pressure sensors are typically connected to the OPUS20E via analogue inputs as opposed to the maximum of 4 external temperature or humidity sensors that can be integrated via a digital BUS protocol. In connection with its LAN capabilities, the Opus20E is able to realize universal measurement networks in real time. For standard applications the Smart-Graph 3 comes into play, and in order to fulfi l the 21 CFR 11 guidelines the wellestablished and proven MCPS7 software is available.

  • Parameters measured: Measurement of Input voltage 0-1V, Current measurement - 2-wires, Current measurement - 3-wires, Thermocouple K, Thermocouple J, Thermocouple S, PT100
  • Measurement technology: Input voltage 0-1V, Current measurement - 2-wires, Current measurement - 3-wires, Thermocouple K, Thermocouple J, Thermocouple S, PT100
  • Product highlights: LAN datalogger with built-in sensors and the highest precision and with up to 10 external channels/sensors per Opus20E.
  • Interfaces: USB (Cable and Monitoring Software SmartGraph3 included)

Advantages of the indoor/inroom datalogger OPUS 20E
  • Highest flexibility with up to 10 external channels/sensors per Opus20E.
  • LAN capabilities to realize universal measurement networks in real time
  • Monitoring and evaluation software SmartGraph3 included
  • Power over Ethernet (PoE) available as option
  • Power supply via batteries as well as USB-Connection possible
  • Firmware online updatable
  • If 21 CFR 11 guidelines have to be fulfilled, the well-established and proven MCPS7 software is available

Examples of the indoor/inroom datalogger OPUS 20E

The only LAN datalogger with built-in sensors and the highest precision is often used in the following applications:

  • Climate monitoring in buildings 
  • control of all climate-sensitive production processes
  • in electronic data-processing centres
  • control cabinets
  • wind turbines
  • storage rooms 
  • museums
  • many other climate-sensitive applications…

  • General :
    • Dimensions : 180 x 78 x 32 mm
    • Measuring interval : 10/30 s, 1/10/12/15/30 min, 1/3/6/12/24 h
    • Construction : Plastic housing
    • Operating time with battery : > 1 Year
    • Data storage : 16 MB, 3,200,000 measured values
    • LC-Display : Height 90 x 64 mm
    • Weight : Approx. 250 g
    • Included in delivery : PC - Windows Software SmartGraph 3
    • for graphical and numerical representation of
    • measured values / Instructions/ data cable/
    • battery/ WAGO connector / DIN rail bracket
    • Interface : USB, LAN
    • Storage interval : 1/10/12/15/30 min, 1/3/6/12/24 h
    • Power supply : 4 x LR6 AA Mignon, USB
    • Operating temperature : -20...50 °C
    • Bus interface : RS485
  • Input voltage 0-1V :
    • Measuring range : 0 ... 1 V
    • Unit : V
    • Accuracy : +/- 200 uV +/- 0.1 % of measured value
    • Resolution : 500 uV
  • Current measurement - 2-wires :
    • Measuring range : 4 ... 20 mA
    • Unit : mA
    • Accuracy : ± 4 uA ± 0.1 % of measured value
    • Resolution : 5 uA
  • Current measurement - 3-wires :
    • Measuring range : 0 ... 20 mA
    • Unit : mA
    • Accuracy : ± 4uA ± 0.1 % of measured value
    • Resolution : 5 uA
  • Thermocouple K :
    • Measuring range : -200 ... 1200 °C
    • Unit : °C
    • Accuracy : ±1 °C +/- 0.5 % of measured value at -200 °C ... 0 °C
    • ±1 °C +/- 0.2 % of measured value at 0...1200 °C
    • Resolution : 0.2 °C
  • Thermocouple J :
    • Measuring range : -200 ... 1200 °C
    • Unit : °C
    • Accuracy : ±1 °C +/- 0.5 % of measured value at -200 °C ... 0 °C
    • ±1 °C +/- 0.2 % of measured value at 0...1200 °C
    • Resolution : 0.2 °C
  • Thermocouple S :
    • Measuring range : -50 ... 1700 °C
    • Unit : °C
    • Accuracy : ± 1 °C ± 0.5 % of measured value at -50 °C ... 0 °C, ± 1 °C ± 0.2 % of measured value at 0 °C ... 1,700 °C
    • Resolution : 0.2 °C
  • PT100 :
    • Measuring range : -200 ... 500 °C
    • Unit : °C
    • Accuracy : ± 0.2 °C ± 0.1 % of measured value
    • Resolution : 0.02 °C

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