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D01-915en201911 Manual eCHEM Chlorine Dioxide
Technical
Da
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Ac
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Technical Data
//
Chlorine Dioxide
7 Technical Data
7.1 Technical Specifications
Measurement technology
Membrane-covered, amperometric 2-electrode system
Measurement principle
Amperometry
Parameters
Chlorine Dioxide
Measurement range
0...2 mg/L, 0...20 mg/L
Accuracy
Measuring range 2 mg/L:
at 0.4 mg/L & 1.6 mg/L < 1 %
Measuring range 20 mg/L:
at 1.5 mg/L < 0.1 %
Response time
T90: approx. 1 min
Running-in period
Approx. 2 h prior to initial operation
Drift
Approx. -1% per month
Temperature compensation
Automatic through integrated temperature sensor Pt100
Housing material
Micro-porous hydrophilic membrane, UPVC, stainless steel 1.4571
Dimensions (L x Ø)
Approx. 205 mm x approx. 25 mm
~ 8.1” x 1”
Interface
RS-485, Modbus RTU
Power supply
9...30 VDC, max. 56 mA
Connection
8-pin M12 plug
Maintenance interval
typically once a week measuring signal check,
membrane cap change & electrolyte change depending on application
System compatibility
Modbus RTU
Warranty
1 year (EU & US: 2 years) on electronics;
wear parts are excluded from the warranty
Process pressure
1 bar, no pressure shocks or vibrations,
operation with retaining ring
~ 14.5 psig
Calibration method
Determination of chlorine with DPD-1 method
Process temperature
0...+50 °C (no ice crystals in the test water)
~ +32 °F... +122 °F
Flow rate
Approx. 15..30 L/h in FLC-3, minimum flow dependence exists
pH range
pH 1 ... pH 12, reduced pH dependence
Conductivity
10 μS/cm...50 mS/cm (sea water)
Cross influences
Cl2 does not interfere; O3: factor 25
