Type 8232

8 | 17

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2.

Materials

2.1. Chemical Resistance Chart – Bürkert resistApp

Bürkert resistApp – Chemical Resistance Chart

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application case? Verify your combination of media and materials on our website or in

our resistApp.

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2.2. Material specifications

Free chlorine sensor “Trace” (zero-chlorine) with membrane cap M48.2

1

2

4

5

3

6

7

8

9

11

12

13

14

15

10

16

No. Element

Material

1

5-pin M12 circular male con-

nector

PA

2

Sensor armature

PVC-U

3

Retaining ring

PETP

4

Slide ring

PETP

5

Sealing (O-ring)

NBR

6

Counter electrode

Stainless steel 1.4571

7

Sealing (O-ring)

NBR

8

Electrode holder

PEEK

9

Reference electrode

Silver/Silver Halide

10

Working electrode

Gold

11

Vent (under hose ring)

Stainless steel 1.4571

12

Hose ring

–

13

Membrane holder

Stainless steel 1.4571, PEEK

14

Membrane

Microporous hydrophilic

15

Membrane cap

PVC-U

16

Intern holder (G-holder)

–

Free chlorine sensor with 3 electrodes with membrane cap M48.4

1

2

4

5

3

13

11

12

15

6

14

7

10

9

8

No. Element

Material

1

5-pin M12 circular male con-

nector

PA

2

Sensor armature

PVC-U

3

Retaining ring

PETP

4

Slide ring

PETP

5

Sealing (O-ring)

NBR

6

Counter electrode

Stainless steel 1.4571

7

Sealing (O-ring)

NBR

8

Electrode holder

PEEK

9

Reference electrode

Silver/Silver Halide

10

Working electrode

Gold

11

Vent (under hose ring)

–

12

Hose ring

–

13

Membrane holder

• Stainless steel 1.4571 for membrane cap M48.4E

• PEEK for membrane cap M48.4S (sea water quality)

14

Membrane

Microporous hydrophilic

15

Membrane cap

PVC-U