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CL 7685.001 Cl2, O3 analyzer with PID regulation

CL 7685.001 Cl2, O3 analyzer with PID regulation

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The controller can be connected to different polarographic sensors, potentiostatic sensor or gas sensing sensor. It provides manual and automatic temperature compensation. The instruments provides also the temperature reading.
FeaturesTechnical DataApplications

Specifications

  • Scales in ppm
  • Measuring units: Cl2, ClO2, D.O3
  • Temperature readout by means of Pt100
  • Range: 0/2,000 ppm – 0/20,00 ppm – 0/200,0 ppm
  • Temperature range: -2/+52 °C
  • Operating mode: automatic and manual.
  • Analog output: 0-20 or 4-20 mA isolated
  • PID output:
    -0-20 mA or 4-20 mA isolated output
    -dual relay for stepping motor
  • Alarm on set-point deviation
  • Power supply 110/220 V, 5 VA
  • Dimensions: 96x96x155 mm.  DIN 43700

Technical Specifications
in addition to those common in the series 7685

* Measuring: D.Ozone/Residual Chlorine
* Measuring cell: Potentiostatic/Polarographic

Polarographic cell
Current: 160 nA/PPM at 20 °C
* Scales: 0/2.000 PPM – 0/20.00 PPM -0/200.0 PPM
Zero adjustment: ± 200 nA
Cell sensitivity: 12.5/250 %

Potentiostatic cell
* Scales: 0/2.000 PPM – 0/20.00 PPM
Zero adjustment: ± 2 µA
Cell sensitivity: 12.5/250 %

* Polarization: -200 mV (0/-1250 mV)
* Filter software 90%RT: 0.1/20.0 s for small/large variations

Temperature
Input: Pt100 3 wires
Measuring and compensation range: -2/52 °C
Manual temperature: -2/52 °C
Resolution: 0.1 °C
Zero adjustment: ± 1 °C
* Temperature coefficient: 0/4.0 %/°C

Regulation:
* 4/20 mA or 0/20 mA/Stepping motor
* Motor time: 10/120.0 s
* Dead time: 0/20.0 s
Manual starting position: 0/100.0 %

Set-point: any value in the measuring range
* Dead band: 0.2/20.0 % (stepping motor)
Proportional band: 0.1/400.0 %
* Derivative: 0/1200 s
* Integral: 0/3600 s

Option
091.4143 9/36VDC power supply

Applications CL 7685.001

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