Type 8232

5 | 17

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Sensor model

Free chlorine sensor

“Trace” (zero-chlorine)

Free chlorine sensor

with 3  electrodes

Free chlorine sensor

with 2  electrodes

Total chlorine sensor

with 3  electrodes

Slope

–

Slope of these sensors can vary depending on production or application

between 65 % and 150 % of the nominal slope.

Recommendation to determinate the suitable measuring range or the suitable

sensor: concentration to be measured x factor 1.5 = measuring range of the

sensor

Example: concentration to be measured 1.6 ppm x 1.5 = 2.4

Result: recommended sensor with a measuring range of 5 ppm

Calibration

• Generate a stable

chlorine concentra-

tion in the measuring

water, use DPD-1

method

• If no chlorine in the

measuring water

is allowed, use an

external calibration

equipment and the

DPD-1 method. De-

tailed information can

be found in chapter

“9.5. Ordering chart

accessories” on

page 16

By the analytical deter-

mination DPD-1 method

(Reference value)

By the analytical deter-

mination DPD-1 method

(Reference value)

By analytical determina-

tion, DPD-4-or (DPD-1 +

DPD-3) methods

Drift

Approx. - 3 % per month,

in reference conditions

(25 °C, pH 7.2 in drinking

water)

Approx. - 1 % per month,

in reference conditions

(25 °C, pH 7.2 in drinking

water)

Approx. - 1 % per month,

in reference conditions

(25 °C, pH 7.2 in drinking

water)

Approx. - 1 % per month,

in reference conditions

(25 °C, pH 7.2 in drinking

water)

Electrical data

Operating voltage

• 9…30 V DC, filtered

and regulated (other-

wise the probe may

be damaged)

• The power supply is

galvanically isolated

inside of the sensor.

• 12…30 V DC, filtered

and regulated, R

L:

50…900 Ω

(e.g. through the

8619 multiCELL

Transmitter/Control-

ler)

• Not galvanically

isolated inside of the

sensor

• 12…30 V DC, filtered

and regulated, R

L:

50…900 Ω

(e.g. through the

8619 multiCELL

Transmitter/Control-

ler)

• Not galvanically

isolated inside of the

sensor

• 12…30 V DC, filtered

and regulated, R

L:

50…900 Ω

(e.g. through the

8619 multiCELL

Transmitter/Control-

ler)

• Not galvanically

isolated inside of the

sensor

Current consumption

Approx. 56…20 mA

Approx. 4 mA (max.

current by overloading:

30 mA)

Approx. 4 mA (max.

current by overloading:

30 mA)

Approx. 4 mA (max.

current by overloading:

30 mA)