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  • Chlorine Analyzers RC400G

Chlorine Analyzers RC400G

2016-05-26 16:10:49

Description:

The RC400G residual chlorine analyzer employs a polarographic system that uses rotating platinum electrodes to provide continuous online measurement of residual chlorine concentration. By appropriate use of reagents, it is possible to separate residual chlorine (free chlorine + combined-chlorine) from free chlorine for measurement. The RC400G is an intelligent residual chlorine analyzer that makes extensive use of microprocessors. Its design is based on the know-how gained through Yokogawa's many years of experience with residual chlorine analysis.……

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Description

RC400G

The RC400G residual chlorine analyzer employs a polarographic system that uses rotating platinum electrodes to provide continuous online measurement of residual chlorine concentration. By appropriate use of reagents, it is possible to separate residual chlorine (free chlorine + combined-chlorine) from free chlorine for measurement.

The RC400G is an intelligent residual chlorine analyzer that makes extensive use of microprocessors. Its design is based on the know-how gained through Yokogawa's many years of experience with residual chlorine analysis.

Features

  • Simple, one-touch calibration. Automatic sensor self-diagnostics (zero point, slope, response) during calibration.

  • Output range can be set in the field in case when the span is 1 mg/l or more. Remote switching 2-range capability is available.

  • Line-segment function available for output signal.

  • Simple verification of applied voltage/current characteristics (Plateau characteristic) between electrodes. Allows detailed knowledge of sensor characteristics for the target application to be obtained.

  • Improvements to rotating electrodes and glass bead cleaning have been added for even more effective automatic continuous cleaning.

  • Waterjet cleaning can be applied for the purpose of particularly dirty applications.

  • Easily maintained (easy-to-clean) cell construction.

  • Available for special version (for free chlorine measurement) designed to cope with very high concentrations of combined chlorine.

Specifications

Measurement objectFree chlorine or residual chlorine (total chlorine) in water
Measurement methodRotating electrode type polarographic system
Measurement range0 to 10 mg/l (mg/l used as concentration units per JIS K0101 and municipal water test methods)
Output rangeCan be freely set within ranges with spans of 1 mg/l or greater
Output signal4 to 20 mA DC (load resistance, 550 Ω Max.) or 1 to 5 V DC (output resistance, 300 Ω Max.)
Sample conditionsTemperature: 0 to 50℃
pH: 3 to 9
Flow: 1 to 4 l /min, for pure water or municipal water application.
        5 to 10 l /min, for raw water or sea water application.
        10 to 20 l /min, for secondary sewage treatment application.
Pressure: 20 to 500 kPa
ElectrodesMeasuring electrode: Rotating platinum electrode
Reference electrode: Platinum electrode (built-in Pt1000 Ω RTD)
Ambient Temperature-5 to 55℃
Ambient Humidity5 to 95 % RH (non-condensing)
InstallationIndoors (A separate rainproof cover is required for outdoor installation. Avoid direct sunlight.)
Power Supply100/110/220 V AC ±10 %, 50/60 Hz
WeightApprox. 65 kg (for pure water)

Performance

(Percent display is computed with respect to whichever of output range 1 or output range 2 has the highest upper range value)

Linearity±3 %
Repeatability2 %
DriftZero drift: ±1 %/month Max.
Span drift: -5 %/month Max.
Response timeDisplayed as 90 % response time
  For pure water: Approx. 2 min
  For raw water (1-cylinder): Approx. 4 min
  For raw water (2-cylinder): Approx. 4 min