JUMO tecLine CL2 sensor for free chlorine
€1,500.59*
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Product information "JUMO tecLine CL2 sensor for free chlorine"
These amperometric sensors with membrane are used to determine the concentration of free chlorine. They are able to measure various inorganic chlorine compounds, including chlorine gas (Cl₂), electrolytically generated chlorine, sodium hypochlorite (NaOCl), calcium hypochlorite (Ca(OCl)₂) and chlorinated lime (Ca(OCl)Cl).
Testing for the complete absence of free chlorine is not possible with these sensors.
Depending on the version, the sensors either supply a temperature-compensated current signal (4-20 mA) in an analogue version or a Modbus RTU signal via a digital interface. Calibration takes place in a downstream device such as an indicator, controller, recorder or programmable logic controller (PLC).
The sensors can be connected directly to various transmitters or controllers. These supply the system with the required voltage and enable uncomplicated calibration.
Areas of application:
The sensors are used to measure free chlorine in drinking water, bathing water, industrial water, process water and cooling water.
Dimensions
| Height | 8 cm |
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| Length | 30 cm |
| Width | 20 cm |
Weight
| Weight | 640 g |
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Other attributes
| Country of origin | DE |
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| Customs tariff number | 90278930 |
Sensors for free chlorine
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Sensor type |
202630/40 |
202630/50 |
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Measurand |
Free chlorine |
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Area of application |
Swimming pool water, drinking water, service water and process water |
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Suitable chlorination agents |
Inorganic chlorine compounds: NaOCl (sodium hypochlorite), Ca(OCl)2, chlorine gas, chlorine pro- duced by membrane electrolysis (not suitable: chlorine electrolysis without a membrane) |
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Measuring principle |
Membrane-covered, amperometric, two-electrode system with integrated electronics |
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Membrane type |
Hydrophobic PTFE membrane |
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Measuring cable connection |
2-pin terminal connection (2 × 1 mm2) |
5-pin flange connector, M12 |
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Voltage supply |
UB DC 12 to 30 V (galvanic isolation required) |
UB DC 22.5 to 26 V (galvanically isolated from the sensor) |
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Electromagnetic compatibilitya |
Interference emission: class Bb Interference immunity: to industrial requirements |
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Output signal |
4 to 20 mA |
Modbus RTU |
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Load/current consumption |
≤ (UB - 7.5 V) ÷ 0.02 A |
approx. 20 mA |
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Settling time |
1 h |
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Inflow speed |
Approx. 15 cm/s corresponds to a flow of approx. 30 l/h when installed in the JUMO flow fitting (part no.: 00392611) |
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Measuring rangesc |
0.05 to 0.5 mg/l (ppm) 0.05 to 2 mg/l (ppm) 0.05 to 5 mg/l (ppm) 0.05 to 10 mg/l (ppm) 0.05 to 100 mg/l (ppm) 0.05 to 200 mg/l (ppm) |
0.05 to 2 mg/l (ppm) 0.05 to 20 mg/l (ppm) |
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Resolution |
0.01 mg/l with measuring range 0.5/2/5/10 mg/l 0.1 mg/l with measuring range 100/200 mg/l |
0.001 mg/l with measuring range 2 mg/l 0.01 mg/l with measuring range 20 mg/l |
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Accuracyd Measuring range 2 mg/l |
< 1 % with 0,4 mg/l < 1 % with 1,6 mg/l |
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Slope drifte |
Approx. < -1 % per month |
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Response time t90 |
approx. 30 s |
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Operating temperature Sample water temperature Ambient temperature |
0 to 45 °Cf 0 to 55 °C |
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Temperature compensation |
Automatic, using integrated temperature probe |
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Zero point adjustment |
Not required |
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Slope adjustment |
On evaluation unit/controller using analytical chlorine determination (DPD-1-method) |
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pH value operating range |
pH 6 to pH 8 Note the effect of the pH value on the disinfecting properties, corrosion and the dissociation curve. |
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pH dependence (loss of slope) |
with pH 8, approx. 65% with pH 9, approx. 95% (starting at pH 7) |
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Disturbances |
ClO2: recorded with a concentration factor of 9 O3: recorded Chlorine electrolysis without a membrane can cause disturbances |
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Pressure resistanceg |
Pabs max. 2 bar Prel max. 1 bar |
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Materials |
Semi-permeable membrane, PVC-U |
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Dimensions |
Dia. 25 mm, length 220 mm (housing with membrane cap) |
Dia. 25 mm, length 205 mm (housing with membrane cap) |
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Weight |
Approx. 125 g |
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a EN 61326-1, EN 61326-2-3.
b The product is suitable for industrial use as well as for households and small businesses.
c Other measuring ranges upon request.
d After calibration under replicable conditions (25 °C, pH 7.2 in drinking water) from the measuring range end value.
e Under replicable conditions (25 °C, pH 7.2 in drinking water).
f Prerequisite: no ice crystals in the measurement medium.
g Pressure fluctuations are not admissible. Pressure-free operation (atmospheric pressure) recommended.
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