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The GF Amperometric Chlorine Electrodes is designed for use in fresh, 
clean water treatment applications where a level of Chlorine is always detectable. 
Free Chlorine electrodes are available in measurement ranges of 0.02 to 2 ppm, 
0.05 to 5 ppm or 0.1 to 20 ppm.
Chlorine Dioxide electrodes are available in measurement ranges of 0.02 to 2 ppm.
Electrodes require the 2650 Amperometric Electronics to output a digital (S

3

L) signal to 

the 9950-3 Chlorine Controller.

Features:
• 

Utilizing smart-sensor technology, this electrode incorporates a unique 
embedded memory chip within the electrode to communicate a wide variety 
of information to the 2650 Amperometric Electronics and 9950-3 Chlorine 
Controller. Electrode type, factory calibration data, service time, chlorine range, 
high and low temperature and more are stored on the chip. This information is 
accessible via the 9950-3 Chlorine Controller

.

• 

GF's patented DryLoc

®

 connector provides quick assembly and a secure 

connection. Gold-plated contacts and an O-ring seal ensure a waterproof and 
reliable interconnect to the 2650 Amperometric Electronics.

• 

Integrated temperature element for automatic temperature compensation.

• 

Separate drive electronics (2650) allow easy electrode replacement without 
running new cable.

English

*3-2630.090*

3-2630.090   Rev 15   02/21

GF 3-2630-X Amperometric Free Chlorine Electrode

GF 3-2632-X Amperometric Chlorine Dioxide Electrode

Manual

CAUTION!

1.  Follow instructions carefully to avoid personal injury or damage to electrode.
2.  Prior to installation or removal:
 a. 

Disconnect 

fl

 ow through system.

 

b.  Drain below sensor level.

3. Con

fi

 rm chemical compatibility before use.

4.  Do not exceed the maximum pressure or temperature speci

fi

 cations.

5.  Do not alter product construction.

Description

• 

English

• 

Deutsch

• 

Français

• 

Español

• 

Italiano

• 

中文

WARNING:

 

The GF Chlorine Analyzer (electrode) is designed to be used in a 

clean, chlorinated 

fl

 owing stream at all times. 

DO NOT 

use in applications where 

electrode could be exposed to periods without chlorine. 

Summary of Contents for 3-2630-X

Page 1: ...nted DryLoc connector provides quick assembly and a secure connection Gold plated contacts and an O ring seal ensure a waterproof and reliable interconnect to the 2650 Amperometric Electronics Integrated temperature element for automatic temperature compensation Separate drive electronics 2650 allow easy electrode replacement without running new cable English 3 2630 090 3 2630 090 Rev 15 02 21 GF ...

Page 2: ...ctrocution Electrostatic Discharge ESD Alerts user to risk of potential damage to product by ESD Personal Protective Equipment PPE Always utilize the most appropriate PPE during installation and service of GF products Pressurized System Warning Sensor may be under pressure take caution to vent system prior to installation or removal Failure to do so may result in equipment damage and or serious in...

Page 3: ...fsignet com for details Declaration of Conformity according to FCC Part 15 This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation Specifications General Polarization Source GF 2650 Amperom...

Page 4: ...r a sink is recommended 1 Remove the protective bottle from the end of the electrode 2 Remove the membrane cap from the front of the sensor Note When new sensors are shipped the membrane cap is not tightened to the sensor 3 Fill supplied syringe with electrolyte solution 4 Place the electrode on a level surface 5 Insert syringe needle fully into one of the eight electrode holes while injecting wit...

Page 5: ...e operating pressure must be less than 0 48 bar 7 psi Higher pressures will damage the electrode The electrode should not be used in water containing surfactants oils organic chlorine or stabilizers such as cyanuric acid Part Number Chlorine Range Chlorine Type 3 2630 1 0 02 to 2 ppm mg L Free Chlorine 3 2630 2 0 05 to 5 ppm mg L 3 2630 3 0 1 to 20 ppm mg L 3 2632 1 0 02 to 2 ppm mg L Chlorine Dio...

Page 6: ...injecting with electrolyte solution Slowly injecting the electrolyte solution into the sensor to avoid introducing air bubbles The electrode holds approximately 14 milliliters of solution Slowly fill until solution begins to flow out of holes Do not allow the solution to run down the electrode and wet the electrical contacts in the DryLoc connector 6 Slowly screw on the membrane cap finger tight D...

Page 7: ...ng bottle with tap water added Storage periods more than 1 week Remove the membrane cap and internal electrolyte solution Rinse the sensor internal chamber with DI water or cold tap water drain and allow to dry Place the membrane cap back onto the sensor INSTALL LOOSE DO NOT COMPLETELY TIGHTEN THE CAP WHEN STORED DRY THE MEMBRANE CAP MUST BE STORED RELAXED AND UNSTRESSED Store sensor DRY in the sh...

Page 8: ...teps 11 17 11 Fill beaker with a 12 mm inch of the appropriate solution 12 Position or suspend the sensor 6 mm to 12 mm in to in above the appropriate solution DO NOT SUBMERGE THE SENSOR See Figure 2 13 Apply power to the system 14 Monitor the nA of the sensor press the down arrow three times on the 9950 3 Chlorine Controller The nA reading should start to rise Response time and nA reading will de...

Page 9: ... fitting Insert until fully seated Do Not Use Lubricant or Sealing Tape on Threads Do Not Overtighten Do Not Use Tools pipe tee When using the chlorine panel flow cell it is not necessary to lubricate this O ring Mounting Position PVC Tee Best Flow Direction Good 45º or or 45º Mount the flow cell where the sensor will be easily accessible To avoid air bubble entrapment do not mount with downward f...

Page 10: ...tations which help determine the specific application The predominant categories used in disinfection are Free Chlorine Total Chlorine and Chlorine Dioxide Free Chlorine is the sum of chlorine gas Cl2 hypochlorous acid HOCl and hypochlorite OCl Above pH 4 0 all of the molecular chlorine is converted to HOCl and OCl Hypochlorous acid is a more potent disinfectant than hypochlorite and exists in a p...

Page 11: ...present in water See technical data Surfactants in water Remove surfactants and replace cap Membrane cap coated Clean or replace membrane cap Membrane cap loose Tighten or replace membrane cap pH outside working range See Specifications on page 3 Sensor output very low Sensor conditioning time too short Condition for 4 hours minimum prior to initial calibration Chlorine content too low Add chlorin...

Page 12: ...de 0 1 to 20 ppm mg L 3 2632 1 159 001 767 Chlorine Dioxide electrode 0 02 to 2 ppm mg L Accessories and Replacement Parts Mfr Part No Code Description 3 2630 391 159 001 674 Free Chlorine electrolyte 30 mL 3 2632 391 159 310 160 Chlorine Dioxide electrolyte solution 30 mL 3 2630 394 159 310 164 Free Chlorine and Chlorine Dioxide Replacement PTFE membrane 1 3 2630 398 159 310 166 Free Chlorine Sen...

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