RC400G Residual Chlorine Analyzer
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
|Bulletin for RC400G|
|General Specification for RC400G|
|User's Manual for RC400G|
|*||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.|
|Measurement object||Free chlorine or residual chlorine (total chlorine) in water|
|Measurement method||Rotating electrode type polarographic system|
|Measurement range||0 to 10 mg/l (mg/l used as concentration units per JIS K0101 and municipal water test methods)|
|Output range||Can be freely set within ranges with spans of 1 mg/l or greater|
|Output signal||4 to 20 mA DC (load resistance, 550 Ω Max.) or 1 to 5 V DC (output resistance, 300 Ω Max.)|
|Sample conditions||Temperature: 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
|Electrodes||Measuring electrode: Rotating platinum electrode
Reference electrode: Platinum electrode (built-in Pt1000 Ω RTD)
|Ambient Temperature||-5 to 55℃|
|Ambient Humidity||5 to 95 % RH (non-condensing)|
|Installation||Indoors (A separate rainproof cover is required for outdoor installation. Avoid direct sunlight.)|
|Power Supply||100/110/220 V AC ±10 %, 50/60 Hz|
|Weight||Approx. 65 kg (for pure water)|
(Percent display is computed with respect to whichever of output range 1 or output range 2 has the highest upper range value)
|Drift||Zero drift: ±1 %/month Max.
Span drift: -5 %/month Max.
|Response time||Displayed 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