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FREE CHLORINE



The chlorine measuring probe is an electrochemical sensor for measuring the concentration of chlorine in water. The measuring cell captures free chlorine from inorganic chlorine products (hypochlorite, chlorine gas, etc.). The measuring method has a reduced pH dependency, so that pH fluctuations only have a limited impact on the measurement signal. pH value increases only lead to an approximately 10 % reduction of the measuring signal per pH unit. The Sensor has a plug and is not delivered with a fixed cable.

Specification


Measurement principle
Amperometry
 
Measuring range
0...2 mg/L, 0...20 mg/L
Measurement accuracy
Measurement range 2 mg/L: at 0.4 mg/L; 1.6 mg/L < 1 %
Measurement range 20 mg/L: at 4 mg/L < 1 %; at 16 mg/L W37< 3 %
Temperature compensation
automatic through integrated temperature sensor
Response time
T90: ~ 2 min
 
 
Housing material
Micro-porous hydrophylic membrane, PVC-U, Stainless steel 1.4571
Dimensions (L x Ø)
205 mm x 25 mm
~ 8˝ x 1˝
Weight
0,1 kg
~ 0.2 lbs
 
Interface
RS-485, Modbus RTU
Power supply
12...24 VDC (± 10 %)
Connector
8-pin M12-plug
 
Power consumption
0.6 W
 
Maintenance effort
≤ 0.5 h/month (typical)
Calibration/maintenance interval
Membrane cap change: every 12 months
Electrolyte change: every 12 months
System compatibility
Modbus RTU
Warranty
1 Year (EU & US: 2 years) on electronics; All wearing parts are not included in the warranty
 
 
Max. pressure
3 bar
~ 43.5 psig
Protection type
IP68
NEMA 6P
 
Sample temperature
0...+45 °C
~ +32 °F... +113 °F
Ambient temperature
0...+55 °C
~ +32 °F... +131 °F
Storage temperature
+5...+35 °C
~ +41 °F... +95 °F




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