JUMO tecLine CL2 sensor for free chlorine

Product number: 802185

€1,661.36*

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Ausgangssignal

4 -20 mA

Modbus RTU

Messbereich freies Chlor

0 - 0,5 mg/l (ppm)

0 - 2 mg/l (ppm)

0 - 5 mg/l (ppm)

0 - 200 mg/l (ppm)

pH Abhängigkeit

Standard

mit reduzierter pH Abhängigkeit

Product number: 802185

GTIN: 4068823019872

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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
Length	30 cm
Width	20 cm

Weight

Weight	640 g

Other attributes

Country of origin	DE
Customs tariff number	90278930

Technical data

Sensors for free chlorine

Sensor type	202630/40	202630/50
Measurand	Free chlorine
Area of application	Swimming pool water, drinking water, service water and process water
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)
Measuring principle	Membrane-covered, amperometric, two-electrode system with integrated electronics
Membrane type	Hydrophobic PTFE membrane
Measuring cable connection	2-pin terminal connection (2 × 1 mm²)	5-pin flange connector, M12
Voltage supply	UB DC 12 to 30 V (galvanic isolation required)	UB DC 22.5 to 26 V (galvanically isolated from the sensor)
Electromagnetic compatibility^a	Interference emission: class B^b Interference immunity: to industrial requirements
Output signal	4 to 20 mA	Modbus RTU
Load/current consumption	≤ (UB - 7.5 V) ÷ 0.02 A	approx. 20 mA
Settling time	1 h
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)
Measuring ranges^c	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)
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
Accuracy^d Measuring range 2 mg/l	< 1 % with 0,4 mg/l < 1 % with 1,6 mg/l
Slope drift^e	Approx. < -1 % per month
Response time t90	approx. 30 s
Operating temperature Sample water temperature Ambient temperature	0 to 45 °C^f 0 to 55 °C
Temperature compensation	Automatic, using integrated temperature probe
Zero point adjustment	Not required
Slope adjustment	On evaluation unit/controller using analytical chlorine determination (DPD-1-method)
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.
pH dependence (loss of slope)	with pH 8, approx. 65% with pH 9, approx. 95% (starting at pH 7)
Disturbances	ClO₂: recorded with a concentration factor of 9 O₃: recorded Chlorine electrolysis without a membrane can cause disturbances
Pressure resistance^g	Pabs max. 2 bar Prel max. 1 bar
Materials	Semi-permeable membrane, PVC-U
Dimensions	Dia. 25 mm, length 220 mm (housing with membrane cap)	Dia. 25 mm, length 205 mm (housing with membrane cap)
Weight	Approx. 125 g

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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