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Page 1

GF 4630 Free Chlorine Analyzer System GF 4632 Chlorine Dioxide Analyzer System

*3-463X.090*

3-4630-X3.090 Rev 0 01/21

The GF 4630 System is EPA 334.0 Compliant.

Description

The GF Chlorine Analyzer Systems are an integrated, all-in-one Chlorine Panel System designed to measure Free Chlorine or Chlorine Dioxide in drinking water and clean, fresh water treatment applications. This manual applies to the 4630 Free Chlorine and 4632 Chlorine Dioxide Analyzer Systems.

Features:

• EPA 334.0 Compliant: The 4630 Free Chlorine System can be used for reporting chlorine residuals in accordance with EPA Method 334.0.

• Complete Chlorine Analyzer System allows quick setup and easy installation. Connect to a DC power supply and water source.

• Unique integrated clear ﬂ ow cell combines sensors, ﬂ ow regulator, ﬁ lter and variable area ﬂ ow indicator in one compact unit.

• Built-in variable area ﬂ ow indicator facilitates ﬂ ow rate conﬁ rmation at a glance.

• Integrated ﬂ ow regulator with removable ﬁ lter accepts inlet pressures of 1 to 8 bar (15 to 120 psi) while maintaining constant ﬂ ow and minimal pressure to the sensors.

• Water ﬂ ows vertically into sensor tip, eliminating bubble entrapment. Raised exit in ﬂ ow cell sensor chamber ensures sensors stay submerged even when system and ﬂ ow is turned off.

• Flow cell accommodates two sensors; one chlorine and an optional pH sensor.

• Automatic pH and temperature compensation or manual pH value input capability for accurate free chlorine readings.

• Easy viewing of the transmitter via the bright backlit LCD display.

• Moisture-proof NEMA 4X wiring enclosure.

English

Operating Instructions

• English

• Deutsch

• Français

• Español

• Italiano

• 中文

Do not use the 4630 in systems that could have the absence of Chlorine.

Additional information can be found in the individual product manuals, refer to www.gfps.com.

Safety

CAUTION!

1. Follow instructions carefully to avoid personal injury.

2. Do not exceed the maximum pressure or temperature speciﬁ cations.

3. In areas with elevated temperatures, mounting the Chlorine System in an outdoor box

may cause damage to the system if the enclosure's internal temperature exceeds the temperature speciﬁ cation of the Chlorine Analyzer.

4. Do not alter product construction.

5. For use with clean fresh water only.

6. Disconnect from external power source before opening wiring enclosure.

7. This panel system may use AC voltages. Wiring should be done by qualiﬁ ed personnel only.

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.

Page 2

Warranty Information Table of Contents

Refer to your local Georg Fischer Sales ofﬁ ce for the most current warranty statement.

All warranty and non-warranty repairs being returned must include a fully completed Service Form and goods must be returned to your local GF Sales ofﬁ ce or distributor. Product returned without a Service Form may not be warranty replaced or repaired.

GF products with limited shelf-life (e.g. pH, ORP, chlorine electrodes, calibration solutions; e.g. pH buffers, turbidity standards or other solutions) are warranted out of box but not warranted against any damage, due to process or application failures (e.g. high temperature, or mishandling (e.g. broken glass,

chemical poisoning, dry-out)

damaged membrane,

freezing and/or extreme temperatures).

Safety Information

Caution / Warning / Danger

Indicates a potential hazard. Failure to follow all warnings may lead to equipment damage, injury, or death.

Electrocution Danger

DO NOT FREEZE

Alerts user to risk of electrocution.

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 injury.

Hand Tighten Only

Overtightening may permanently damage product threads and lead to failure of the retaining nut.

Do Not Use Tools

Use of tool(s) may damage product beyond repair and potentially void product warranty.

Note / Technical Notes

Highlights additional information or detailed procedure.

Do Not Freeze

Products are temperature sensitive and may contain freezable liquids. Freezing damage to pH, ORP, and Chlorine electrodes voids product warranty.

potential of injury or death via

Description ..................................................................................... 1

Warranty Information ...................................................................... 2

Safety Information .......................................................................... 2

Chlorine System Dimensions / Speciﬁ cations ............................... 3

Mounting / System Inventory ......................................................... 4

Quick Start ..................................................................................... 4

9950-3 Operation / Terminal Identiﬁ cation ..................................... 5

Panel Assembly.............................................................................. 6

Component Identiﬁ cation: Flow Cell .............................................. 7

Wiring

3-9950-3 Input Power Wiring ..................................................... 8

4 to 20 mA Wiring Loop 1 & 2 .................................................... 8

9950 Dual Channel 4 to 20 mA Module ..................................... 8

3-9950.393-3 Standard with 9950-3 .......................................... 9

3-9950.393-3 with internally powered ﬂ ow switch ..................... 9

Sensor Wiring ............................................................................. 9

Chlorine Sensor Preparation / Maintenance ............................... 10

Sensor Installation.........................................................................11

Tubing Connections ..................................................................... 12

Water Flow ................................................................................... 12

9950-3 Chlorine Controller

Calibration ........................................................................... 13-15

Signal Type: Digital (S³L) ......................................................... 16

Module Installation ................................................................... 16

Plug-In Modules ....................................................................... 17

Loop and Modbus Modules ..................................................... 17

Relay Modes ....................................................................... 18-21

Chemical Guard ....................................................................... 19

Standard Relay Mode .............................................................. 20

Menu System

View Mode Overview ............................................................... 22

Menu Mode Overview .............................................................. 22

Password Overview ................................................................. 22

View Mode ..............................................................................23-24

Calibration .................................................................................... 25

Chlorine Electrode Calibration ................................................. 25

pH Electrode Calibration .......................................................... 26

Input Menu .............................................................................. 27-28

4 to 20 mA Output (Loop Output)................................................. 29

Relay Menu

Chemical Guard Menu ........................................................ 30-31

Standard Relay Menu .............................................................. 32

Option Menu ........................................................................ 33-34

Modbus Menu .........................................................................35-36

9950 Field Software Upgrade / Updating the 9950 ..................... 37

Troubleshooting ......................................................................38-39

Calibration Error Messages ......................................................... 39

2630 Free Cl / 2632 ClO2 Electrode .......................................40-42

2724 DryLoc pH Electrode ........................................................... 43

pH System Calibration ............................................................ 44-45

Buffer Solutions ............................................................................ 45

Electrode Storage ........................................................................ 45

463X Chlorine Analyzer Flow Cell ............................................... 46

O-ring Installation ......................................................................... 47

Flow Cell Assembly ...................................................................... 48

Troubleshooting

463X Chlorine Analyzer ........................................................... 49

9950-3 Chlorine Controller ....................................................... 50

9950-3 Error Messages ........................................................... 51

2630 Free Cl / 2632 ClO2 Electrodes ...................................... 52

2751-7 pH Electronics .............................................................. 52

Speciﬁ cations

9950-3 Chlorine Controller ....................................................... 53

2650 DryLoc® Amperometric Electronics ................................. 54

2751-7 pH Electronics .............................................................. 54

2630 Free Cl / 2632 ClO2 Electrodes ...................................... 55

2724 DryLoc® pH Electrode ..................................................... 56

Notes ............................................................................................ 57

Ordering Information .................................................................... 58

463X Chlorine Systems Manual

Page 3

Dimensions System Speciﬁ cations

279.4 mm (11 in)

305 mm

(12 in)

CHLORINE Analyzer

1-8 bar

(15-20 psi)

254 mm

(10 in)

(3 in.)

76 mm

330 mm (13 in.)

171 mm (6.75 in.)

76 mm (3 in)

330 mm

(13 in)

305 mm (12 in.)

254 mm (10 in.)

Hand Holds

148 mm (5.83 in)

25 mm (1.0 in.)

Ø 7 mm (0.27 in.)

Ø 13 mm (0.52 in.)

General

Compatible GF Sensors 3-2630-1 Free Chlorine Sensor 0.02 to 2 ppm 3-2630-2 Free Chlorine Sensor 0.02 to 5 ppm 3-2630-3 Free Chlorine Sensor 0.05 to 20 ppm 3-2632-1 Chlorine Dioxide Electrode 0.02 to 2 ppm 3-2724-00 Flat pH Electrode

Free Chlorine .....................5.5 to 8.2 pH

(consult factory for pH above 8.2)

Chlorine Dioxide ................4.0 to 11 pH

Materials

Panel .................................Black acrylic

Flow Cell ...........................Acrylic

Wiring Enclosure ...............Polycarbonate

Wetted Materials

Flow cell, spacer rings .......Acrylic

Flow regulator housing.......Polycarbonate

Strainer, e-clip, regulator

spring, float .......................Stainless steel

Valves, vent .......................Polypropylene

Flow Cell O-rings,

diaphragm .........................EPR (EPDM), FKM

Chlorine electrode .............PVC, PTFE, FKM, Nylon, Silicone

pH electrode ......................PPS, Glass, UHMWPE, FKM

Sealing tape

(valves, plug, vent) ............PTFE

Plug ...................................Polyethylene

Flow Switch .......................Polypropylene

Performance

System Inlet

Pressure Rating ................. 1 to 8 bar (15 to 120 psi)

Pressure Regulator ............ < 0.69 bar (10 psi) variation over

all ranges of flow and pressure

Flow tolerance ................... ±15% or rated specification above

Flow rate limits ..................8 to 12 gph (US)

(30.24 to 45.36 LPH)

Electrical

DC Input (standard) ...........24 VDC nominal

(12 to 32 VDC, ± 10% regulated) Environmental Requirements

Storage Temperature .........0 °C to 65 °C (32 °F to 149 °F)

Operating Temperature ......5 °C to 45 °C (41 °F to 113 °F)

Relative Humidity ...............0 to 95%

Maximum Altitude ..............4000 m (13,123 ft)

Shipping Weight ................10 kg (22 lbs)

Enclosure ..........................NEMA 4X (with output wire

glands sealed)

Standards and Approvals

CE, UL, CUL, WEEE RoHS Compliant Manufactured under ISO 9001, ISO 14001 and ISO 45001. China RoHS (Go to www.gfps.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.

Safety Data Sheets (SDS) are available online at www.gfps.com.

463X Chlorine Systems Manual

Page 4

Mounting

System Inventory

Do not mount in direct sunlight.

• Bright light can promote algae growth. Indoor mounting is recommended.

• If the system is mounted outdoors, an outdoor enclosure for the whole system must be used to protect the electronics and ﬂ ow cell from light, rodents, insects and dirt.

• Mount the panel according to local electrical, building, and/or plumbing codes and seismic requirements.

• Use four 6 mm (¼ in.) diameter screws or bolts of sufﬁ cient length to mount the panel to a sturdy vertical surface. A mounting template is provided.

• Allow clearance on the sides and bottom for service to the unit.

• Keep panel system electronics and enclosure away from dripping water.

• The panel must be mounted vertically in an upright position.

1. Chlorine panel assembly a. Built-in pressure regulator 15 to 120 psi. b. 3/8 inch hose barb connectors. c. Flow switch

2. 1 each 2630 series Free Chlorine sensor or 2632 Chlorine Dioxide sensor; each with protective cap a. 1 spare membrane cap b. 2 bottles of electrolyte solution c. 1 syringe needle (taped to bottle) d. 1 syringe

3. 1 each Flat pH sensor 3-2724-00 (159 001 545) (3-4630-13, -23, -33 and 3-4632-13 models only)

4. Manual package a. English and Chinese panel assembly manuals b. Wall mounting hardware c. Drill template

5. Customer supplied a. 3/8" hose input and drain b. Hose clamps

Quick Start

Follow the steps below to set up a new Chlorine Analyzer System. Refer to the individual component manuals for detailed information.

Step 1. Mount the panel on a vertical ﬂ at surface using appropriate hardware.

Do not turn on power at this time.

Step 2. Open the wiring enclosure and wire input power.

(see page 8: Wiring Input)

Step 3. Wire any 4 to 20 mA and relay output. Step 4. Remove sensor access plugs from the ﬂ ow cell, see page 7.

If the optional pH sensor is NOT used, do not remove the left-side plug from the ﬂ ow cell.

Step 5. Remove the protective cap from the chlorine electrode.

(Keep the electrode cap in a safe place for future use. It is recommended to use the cap to protect the sensor during the removal of the electrode for cleaning or maintenance of the ﬂ ow cell)

Step 6. Complete Sensor Preparation (see page 10) and install the chlorine sensor into the electronics.

(see page 11: Sensor Installation) Install the chlorine electrode into the ﬂ ow cell. The chlorine sensor is installed in the right-side access port, optional pH sensor is installed in the left-side access port.

NOTE:

Step 7. Repeat step 5 and 6 for the pH electrode. Step 8. Remove the ﬂ ow switch from the bottom of the ﬂ ow cell and install into the ﬂ ow cell , see page 7 Step 9. Install the inﬂ uent water source to the "Inlet Port" nipple assembly of the ﬂ ow switch. Install 3/8-inch tubing and secure

Step 10. Install 3/8-inch tubing and secure with a hose clamp on the "Drain" port and direct the tube to a proper drain.

NOTE: Drain line (zero pressure) must be lower than inﬂ uent line to prevent back ﬂ ow into the ﬂ ow cell. Step 11. Verify the inlet and drain ball valves are in the open position and the sample port is in the off position.

Step 12. Turn on the inﬂ uent water source and check the system for leaks. Step 13. Apply power to the system and allow system to initialize. Calibrate per instructions.

Both the Chlorine and the pH electrodes are required to be calibrated for accuracy. Upon inital set up the electrodes will need to be placed in a chlorinated ﬂ ow stream for a minimum of 4 hours in a conditioning period. Calibration of the Chlorine electrode is typically required every 14 to 21 days to comply with the EPA standard 334.0. The calibration frequency of the pH electrode is application dependent and the intervals between calibrations must be determined by the user of the system.

with a hose clamp. (Not included. See page 12: Tubing Connections)

(Not included)

(See page 12: Tubing Connections)

(See page 10: Chlorine Sensor Calibration)

See page 10: Chlorine Sensor Calibration, for chlorine calibration and set up procedure.

463X Chlorine Systems Manual

Page 5

9950-3 Operation

Channel 1

display area

Channel 2

display area

Numeric Values or labels

Bar Graph

Numeric Values or labels

Bar Graph

Relay 1 Indicator LED

CH1

Backlight Sensor (do not block)

Relay 2 Indicator LED

9999.9

00.00

CH2

9999.9

00.00

UP, DOWN keys

Scroll through Menu options or adjust values during editing Press both together to exit a menu or escape without saving

RIGHT key

Select item or character to edit

Relay 3 Indicator LED

UOM UOM

99.99

UOM UOM

99.99

ENTER

Relay 4 Indicator LED

Units of Measure (mg/l/ppm)

Units of Measure (pH)

Menu Navigation Keys

9950-3 Terminal Identiﬁ cation

Relay Module 3-9950.393-3

USB Port

ENTER

DC Power Terminals

ENTER key

Access menus Save changes

Current Loop Outputs 1 and 2

Current Loop Outputs 3 and 4 3-9950.398-2

Channel 1 Input Chlorine Sensor Electrode

Optional Modbus Module 3-9950.395-M

Channel 2 Input pH Electrode

463X Chlorine Systems Manual

Page 6

Panel Assembly

pH sensor

electronics

3-2751-7 (159 001 957)

pH electrode

3-2724-00 (159 001 545)

ENTER

Wiring enclosure

Chlorine Controller

3-9950-3 (159 001 955)

Vent

Cap

Amperometric chlorine sensor electronics

3-2650-7 (159 001 670)

Chlorine electrode

3-2630-X (Free Chlorine) 3-2632-1 (Chlorine Dioxide)

Flow range limits

Flow rate indicator

Flow regulator with strainer

Inlet port

Quick disconnect

3-4630.395 (159 001 960)

2000-2525*

Flow switch

Quick disconnect plug

9.5 mm (3/8 inch hose)

2000-3825*

1-8 bar

(15-20 psi)

Drain port

9.5 mm

(3/8 inch hose)

Flow cell block

Flow cell O-rings

Ball valve

9.5 mm (3/8 inch) 4300-5225*

Hose barb

9.5 mm (3/8 inch) 2000-3804*

Sampling port

* Contact factory for quote

463X Chlorine Systems Manual

Page 7

Component Identiﬁ cation: Flow Cell

Spacer ring

Stainless steel ﬁ lter

Pressure regulator

Flow cell nut

Flat washer

Flow cell back block

Regulator Assembly (3-4630.391)

(159 001 689)

Pressure regulator outer O-ring (large)

Pressure regulator outer O-ring (small)

Flow cell O-rings (4 segments)

Flow cell front block

Flat washer*

Disc spring (2700-0003)*

Knurled thumb nut

Flow cell bolt (2490-0554)

*Not included with 3-4630.392 (159 001 690)

Flow Cell Rebuild Kit (3-4630.390)

(159 001 688)

(1700-2512)*

3-4630.392

(159 001 690)

Flat washer

Disc spring (curved washer)

Included in kit 3-4630.390

Item Quantity

Flow cell nut 6

Flat washer 15

Disc spring 9

Knurled thumb nut 3

Flow cell bolt 6

463X Chlorine Systems Manual

Page 8

Wiring

3-9950-3 Input Power Wiring

WARNING

DO NOT connect AC power to the DC version THE 3-9950-3 MUST BE POWERED BY 12 - 32 VDC at 0.5 A.

DC POWER

Red

Black

Blue

DC POWER

–

Power Supply

12 to 32 VDC

PLC or

Recorder

PLC or

Recorder

Red

Black

3-9950-3

Power Supply

–

12 to 32 VDC

Caution:

For DC power input and loop current regulated voltage, use UL60950-1 or UL61010-1 certiﬁ ed power supply. Power supply shall also be rated for operation at 4000 m altitude.

9950 Dual Channel 4 to 20 mA Module4 to 20 mA Wiring Loop 1 & 2

PLC

MODULE 1

Loop A+

Loop A– Loop B+

Loop B–

MODULE 2

Recorder

–

Red

Blue

Red

Blue

Recorder

–

PLC

Power

Supply

–

463X Chlorine Systems Manual

Page 9

Wiring continued

3-9950.393-3 Standard with 9950-3

The alarm is OFF during normal operation, and will go ON when the relay energizes according to 9950 Relay settings.

RELAY MODULE

Blue

Red

Blue

Red

Black

Relay 1

Relay 2

No Connection

Binary Input 1 Binary Input 2 Binary Input 3 Binary Input 4

N/O 1 N/C 1

COM 1

N/O 2 N/C 2

COM 2

X SW1 SW2 SW3 SW4

SW COM

Chemical Dosing pump

Power Supply

No Connection

BINARY INPUT 1 BINARY INPUT 2

BINARY INPUT 3 BINARY INPUT 4

Flow Switch Assembly

(159 001 960)

3-9950.393-3 with internally powered ﬂ ow switch from factory

Black

RELAY 1

RELAY 2

N/O 1

N/C 1

COM 1

N/O 2 N/C 2

COM 2

SW1

SW2

SW3

SW4

SW COM

Red

Black

ALARM!

AC or DC

power

Sensor Wiring

CH1CH2

DC POWER

Technical Notes:

• Route sensor cables away from AC power lines.

• Connect the silver (shield) wire to earth ground in case of EMI noise interference.

Black

Red

White

Black

Red

White

2650-7 with 263X Chlorine Electrode

2751-7 with 2724 pH Electrode

463X Chlorine Systems Manual

Page 10

Chlorine Sensor Preparation

2630 Free Chlorine Electrode 2632 Chlorine Dioxide Electrode

NOTE: See page 40 for additional 2630, 2632 information.

• Chlorine sensors are shipped without internal electrolyte solution.

• Prior to installation and supplying power, Chlorine sensors must be ﬁ lled with the appropriate internal electrolyte solution.

• Verify the correct electrolyte solution is utilized with the corresponding sensor.

• Free Chlorine and Chlorine Dioxide sensors require different electrolyte solutions.

Avoid skin or eye contact with electrolyte solution. Wear rubber gloves and goggles.

*Safety Data Sheets (SDS) are available online at www.gfps.com.

CAUTION! DO NOT touch the gold tip or the membrane of the sensor.

Initial Fill Procedure:

When adding electrolyte, be prepared for an accidental spill. Working near 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.

Additional caution should be taken when handling Chlorine Dioxide electrolyte solution.

4. Place the electrode on a level surface.

5. Insert syringe needle fully into one of the eight electrode holes while 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 ﬁ ll until solution begins to ﬂ ow 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 ﬁ nger tight. Do not use tools. To avoid damage

and contamination, do not touch the white membrane surface on the membrane cap.

CAUTION:

DO NOT touch the gold-plated tip or the membrane of the sensor.

Chlorine Sensor Calibration

A new chlorine electrode or one that has had the membrane cap changed must be calibrated. See page 13, 9950-3 information on calibration of the chlorine sensor. A diethyl-p-phenylenediamine (DPD) colorimeter test kit (not included) is required for sensor calibration. A sample is taken and analyzed with the DPD test kit, then this value is entered into the 9950-3.

• A new system requires an inital 4 hour conditioning.

• Calibrate after a membrane cap change (requires 2 hour stabilization time).

• Calibrate after the internal electrolyte is replaced (requires 2 hour stabilization time).

• Check calibration 24 hours after sensor is placed in service.

• Check calibration weekly to monthly depending on process requirements.

Chlorine Sensor Maintenance

The sensor membrane and internal electrolyte solution must be replaced over the life of the electrode. To maintain accurate chlorine measurements, GF recommends that the internal electrolyte be replaced every 3 to 6 months, or when Chlorine readings drift low and/or cannot maintain a calibration longer than 5 days. Actual interval between maintenance of the sensor will be dependent on the application, chlorine level and contaminates in the water. See page 41; Maintenance and Storage.

Keep spare membrane caps available. Membrane caps carry no warranty.

To maintain accurate chlorine measurements, GF recommends the internal electrolyte be replaced and the gold-plated sensor electrode be properly polished every 3 to 6 months. See page 41.

NOTE: Inspect and change the membrane cap if damaged. See page 41, Maintenance, for cleaning procedure.

463X Chlorine Systems Manual

Page 11

Sensor Installation

• Remove sensor access plugs from the ﬂ ow cell.

Note: Chlorine Sensor Preparation must be completed prior to installation, see 10.

• Holding the 3-2751-7 (159 001 957) or 3-2650-7 (159 001 670) electronics inverted, open the DryLoc turning the upper locking ring ¼-turn counter-clockwise.

• Insert the electrode facing up. Turn the locking ring ¼-turn clockwise to lock the electronics in place.

• The mechanism will “click” when it is locked.

• Install the complete electrode assembly into the ﬂ ow cell and ensure the key on the electrode aligns with the key slot on the ﬂ ow cell.

Avoid skin or eye contact with electrolyte solution. Wear rubber gloves and goggles. Safety Data

Sheets (SDS) are available online at www.gfps.com.

Lubricate the DryLoc Do not lubricate the sensors body O-ring. Turn by hand. Do Not Use Tools. Do Not Drop or Strike the Membrane.

DryLoc® Connection to Sensor Electronics

connector by

O-ring only.

Chlorine Electrode

Lubricate O-rings with a

non-petroleum based, viscous

lubricant (grease) compatible

with the system.

(159 001 670)

Chlorine Electronics

3-2630-X

3-2632

3-2650-7

Do not lubricate this O-Ring

Locking Ring

Lock

GF 3-2630-X GF 3-2632 Chlorine Electrode

GF 3-2724-00 (159 001 545)

Flat pH Electrode

3-2724-00 (159 001 545) pH Electrode

Lubricate O-rings with a non-petroleum based, viscous lubricant (grease) compatible with the system.

Lock

3-2751-7 (159 001 957) pH Electronics

pH Cl

OUT

GF 3-2650-7 pH Electronics

GF 3-2751-7

Electronics

pH Cl

463X Chlorine Systems Manual

OUT

Page 12

Flow Switch and Tubing Connections

• Use suitable 9.5 mm (3/8 in) ID tubing that is rated for your inlet pressure.

• Use hose clamps.

• Remove the Flow Switch from the three ball valves located on the bottom of the ﬂ ow cell.

• Insert inlet quick connect into the mating connector on the ﬂ ow cell.

Inlet Quick Release Connection

Press down gray plunger to release. Water ﬂ ow is automatically shut off when disconnected.

Valve position for start up and normal use.

Note: Turn off inlet valve ﬁ rst when stopping water ﬂ ow.

• The drain tube must be positioned lower than the inﬂ uent water source to allow proper ﬂ ow through the ﬂ ow cell. The ﬂ ow cell must drain by gravity, not system pressure.

• When testing, allow the sample to ﬂ ow for a few seconds before collection.

Inlet Drain

OUT

(to outlet)

Sampling port (flow off)

Water Flow

Flow Rate

The ﬂ ow rate is in the proper range when the ﬂ oat is between the Min. and Max. markers on the ﬂ ow cell. The ﬂ ow range limits are 30.24 to 45.36 L/h (8 to 12 gal/h).

For Low Flow applications (ﬂ ow less than 1 bar/15 psi), the Flow Regulator can be removed and the ﬂ ow adjusted using the Flow Cell ball valve. NOTE: The inlet hose barb will also need to be changed. (Contact factory for details.)

ClpH

OUT

463X Chlorine Systems Manual

Page 13

9950-3 Calibration

Both the Chlorine and the pH electrodes are required to be calibrated for accuracy. Upon inital set up the electrodes will need to be placed in a chlorinated ﬂ ow steam for a minimum of 4 hours in a conditioning period. Calibration of the Chlorine electrode is typically required every 14 to 21 days to comply with the EPA standard 334.0. The calibration frequency of the pH electrode is application dependent and the intervals between calibrations must be determined by the user of the system.

In order to achieve the most accurate chlorine measurement, after the minimum 4 hour conditioning period, calibration must be performed in the following speciﬁ c order:

• Temperature

• pH electrode (Free Chlorine only)

• Chlorine electrode

NOTE: The Temperature element only requires calibration one time during initial commissioning. Once calibrated the Temperature element is calibrated for the life of the chlorine electrode.

Chlorine sensor temperature element calibration

The temperature element inside the chlorine sensor needs to be calibrated. Use a reference thermometer to verify the actual temperature of the sample. This value is then entered into the calibration screen of the Temperature Calibration menu. Tip: Remove the pH electrode from the ﬂ ow cell and insert the reference thermometer. If no pH sensor is being used

system), remove the cell plug to insert the thermometer. Replace the plug after calibration.

(ClO

pH electrode calibration It is highly recommended to perform a two point calibration of the pH electrode using a pH buffer 7 and pH buffer 4 or 10. The pH buffers' temperatures should be close to the system water temperature for an accurate calibration. Once a successful calibration is performed, the 9950 will automatically time stamp the "Last CAL" display with the date of calibration. The user can add a date to the "NEXT CAL" display which will generate a "Calibration Due" icon across the pH channel (CH2).

Chlorine sensor

Calibration must be performed to every new chlorine sensor (FCl or ClO2) and any time a membrane cap or internal electrolyte is replaced. With the chlorine sensor attached to the 2650 electronics (with system power on) and placed in a chlorinated ﬂ ow steam for the minimum of 4 hour conditioning period, the temperature and chlorine In-Process Calibration needs to be performed. Once a successful calibration is performed the 9950 will automatically time stamp the "Last CAL" display with the date of calibration. The user can add a date to the "NEXT CAL" display which will generate a "Calibration Due" icon across the chlorine channel (CH1).

NOTE: It is advised to return 24 hours after the initial Chlorine calibration to verify and recalibrate if necessary.

Temperature Calibration

CAL

INPUT LOOP RELAY OPTION

ENTER

CH 1 FREE CI

25.00

ENTER

CH 1 FREE CI

CH 2 pH

TEXT 3

+25.30

+25.00

CH 1 FREE CI

OFF

HOLD OUTPUTS

to Save

ENTER

Display returns to calibration display

CH 1 FREE CI

SET

TEMPERATURE

CH 1 FREE CI

CH 2 pH

TEXT 3

463X Chlorine Systems Manual

Page 14

Calibration

pH Electrode Calibration

CH 1 FREE CI

CH 2 pH

TEXT 3

CH 2 pH

to edit to edit

CH 2 pH

OFF

HOLD OUTPUTS

CH 2 pH

SET

pH STANDARD

CH 2 pH

6.80

RAW - 3 mV

Place electrode tip in saturated pH 7.0 buf

fer.

to edit

CH 2 pH

NEXT CAL

MM/DD/YYYY

+07.01

6.80

RAW - 3 mV

to Save

ENTER

pH STANDARD

Use the arrows to modify the pH value, matching the buffer solution.

+04.80 CH 2 pH

4.80

RAW 173 mV

to Save

ENTER

Use the arrows to modify the pH value, matching the buffer solution.

to edit

MM/DD/YYYY

NEXT CAL

MM/DD/YYYY

to Save

ENTER

CH 2 pH

SET

pH SLOPE

CH 2 pH

NEXT CAL

MM/DD/YYYY

CH 2 pH

SET

pH SLOPE

Place electrode tip in saturated pH 4.0 buf

CH 2 pH

LAST CAL

MM/DD/YYYY

Display returns to calibration display

fer.

CH 1 FREE CI

CH 2 pH

TEXT 3

463X Chlorine Systems Manual

Page 15

Calibration

Chlorine Electrode Calibration

CH 1 FREE CI

CH 2 pH

TEXT 3

CH 1 FREE CI

CH 2 pH

TEXT 3

to edit

CH 2 pH

CH 1 FREE CI

SET

OFF

pH STANDARD

HOLD OUTPUTS

CH 2 pH

CH 1 FREE CI

SET

pH STANDARD

ZERO CAL

Place electrode tip into DI water.

- .01

0.0 PPM

to Save

ENTER

CH 2 pH

CH 1 FREE CI

SET

pH STANDARD

IN PROCESS

to Save

ENTER

CH 1 FREE Cl

NEXT CAL

MM/DD/YYYY

CH 2 pH

CH 1 FREE CI

SET

pH STANDARD

IN PROCESS

CH 1 FREE Cl

MM/DD/YYYY

Test sample with an external DPD test instrument.

LAST CAL

Display returns to calibration display

to edit

CH 1 FREE Cl

NEXT CAL

MM/DD/YYYY

+ 002.25

RAW 100.5 nA

Modify Chlorine PPM value to match DPD reference.

MM/DD/YYYY

NEXT CAL

MM/DD/YYYY

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Page 16

Signal Type: Digital (S3L)

• The input terminals on the 9950-3 carry Digital (S3L) serial data from the sensor.

• Do not route sensor or output cables in conduit containing AC power wiring. Electrical noise may interfere with sensor signal.

• Routing cable in grounded metal conduit will help prevent electrical noise and mechanical damage.

• Seal cable entry points to prevent moisture damage.

• Only one wire should be inserted into a terminal. Splice double wires outside the terminal.

• The TOTAL cable length from I/O devices to the transmitter must not exceed 305 m (1000 ft).

• In case of noise interference, ground the sensor SHIELD wire to a local earth ground at a point near the sensor.

• Consult the sensor manual for additional wiring information.

• The maximum cable length of the Digital (S

L) bus varies depending on the types of sensors connected and the size of the conductors in the cable. For best results, determine the maximum cable length for the system before routing cables.

Module Installation

In case of noise interference, connect the cable shield to earth ground.

Maximum total cable length of the Digital (S

L) Bus:

The quality of the cable used in the bus determines the maximum length. The maximum cable length may not exceed 305 m (1,000 ft), regardless of current requirements.

CAUTION

Avoid Electrostatic Discharge (ESD).

The plug-in modules may be installed either before or after the base unit is mounted. If the 9950-3 Base Unit will be mounted using the provided quick clip mounting bracket, install plug-in modules ﬁ rst with power disconnected.

CAUTION

Exercise care when installing modules. Do not bend connecting pins.

To install modules:

Remove power from the 9950-3. Carefully align pins and connectors (do not bend connecting pins) and push module ﬁ rmly into place, then attach with screw(s) for Relay Modules only.

9950

MODULE 1

MODULE 2

Rounded Corners

Important!

Ensure the rounded corner of the module is alligned with the rounded corner of the module slot before installing

Dual Channel 4 to 20 mA Module

To move modules:

Remove power from the 9950-3.

For Relay Modules:

Unplug connectors, remove screw(s), and carefully pull module straight out from the base unit. Do not bend the connecting pins.

For Dual Channel 4 to 20 mA, and Modbus Modules:

Unplug connectors and squeeze the two retaining tabs while pulling module out of 9950-3.

WARNING

Relays may be connected to external high-voltage power sources or multiple power sources creating an electrocution hazard.

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Page 17

Plug-In Modules

Standard modules for the 9950-3:

a. Base Unit (required) 3-9950-3 159 001 841 Base Controller, no modules b. Relay Module 3-9950.393-3 159 310 270 Relay Module c. Module 1 3-9950.398-2 159 001 848 Dual Channel 4 to 20 mA

Output Module

Optional module for the 9950-3:

d. Module 2 3-9950.395-M 159 001 905 Modbus Module (optional)

Each item is ordered separately. Modules are ﬁ eld-replaceable at any time. See Module Installation (pg. 11) and Ordering Information (pg. 68) sections for more details.

CAUTION

Avoid Electrostatic Discharge (ESD).

•

Minimize handling of the plug-in modules to reduce the possibility of damage due to ESD.

•

Handle modules by the edges.

Never touch any exposed circuitry or contacts.

•

Wear an anti-static wristband or stand on an anti-static mat, or keep one hand touching a

properly grounded pipe or other piece of properly grounded metal when handling modules.

Loop and Modbus Modules

Mfr. Part No. Code Description 3-9950.398-2 159 001 848 Dual Channel 4 to 20 mA Current Loop Output Module 3-9950.395-M 159 001 905 Modbus Module

Dual Channel 4 to 20 mA Module

Two additional 4 to 20 mA passive current loop outputs in a single module, allows up to six current loop modules in the 9950-3 Chlorine Controller.

Modbus Module

The Modbus Module connects the 9950-3 to serial RS485 Modbus automation networks. The Modbus Module will allow for PLCs and SCADA Systems to query the current readings, channel status, state of the relay and 4 to 20 mA outputs, along with status of the 9950-3 Chlorine Controller and Modbus communications. Detail programming information is available in the 9950 Modbus Programming Manual, available at www.gfps.com.

Default Communication Parameters ModBus Address 95 ModBus Termination Off ModBus Mode RTU ModBus Baud Rate 19.2K ModBus Parity Even ModBus Endian Big

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Page 18

Relay Modes

The 9950-3 has a slot for an optional Relay Module for the module listed on page 17.

• The four Binary Inputs can detect if an external switch is open or closed. The switch state can be used to enable or disable the relays in the module control relay activation and are not considered an input measurement. This is standard on the 9950-3.

• A ﬂ ow switch must be wired into Binary input #1 to allow access to the Chemical Guard mode of the 9950-3.

• Dry-contact relays are electromechanical switches with a moving contact armature. They are suitable for many general-purpose applications, AC or DC, including AC loads up to 250 V.

For wiring information, refer to the Relay Wiring section, page 8.

Binary Input Ratings

Maximum Input voltage (without damage)

. The four binary inputs only

30 VDC

3-9950.393-3

Power

Switch

EXT

INT

Minimum Input voltage (without damage)

Maximum input voltage for signal “Off” (low or "0")

Minimum input voltage for signal “On” (high or "1")

Maximum current draw for signal “0” (low)

Minimum current draw for signal “1” (high)

Typical current draw for signal “1” (high)

-5 VDC (no operation below 0 VDC)

1.5 VDC

3.0 VDC

<500 ADC

500 A

6.0 mA at 30 VDC,

4.8 mA at 24 VDC,

2.4 mA at 12 VDC,

1.0 mA at 5 VDC

The 3-9950.393-3 module can be set to supply power to the external switch/ sensor. If an externally powered sensor is connected with the 3-9950.393-3 module, set the power switch to the EXT position. The module can power external sensors by switching the power switch to the INT position. Maximum power that can be drawn from the module is 6mA at 30 VDC. Important for externally powered switches/sensors to ensure the output signal is within the allowable range for the 3-9950.393-3.

Int / Ext

Switch

EXT

INT

CAUTION

Keep relay wiring separate from electrode and signal wiring to prevent interference and damage to the 9950-3 Transmitter.

NOTE:

• The four red Indicator LEDs on the front panel of the 9950-3 show the status of relays 1, 2, 3, & 4. The LEDs will activate with or without a relay module installed.

• Hysteresis and time delay are adjustable for each relay.

CAUTION

Switching active loads (usually inductive) can cause contact arcing sufﬁ cient to damage the relays.

The RC Filter Kit or “snubber” (part number 3-8050.396) is available as an accessory to reduce or eliminate these damaging effects. Recommended for inductive loads greater than 50 VAC (remote relays, solenoids, pumps, etc.)

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Page 19

Relay Modes

Chemical Guard

The Chemical Guard prevents overdosing of oxidant type chemicals (Chlorine) whose concentration varies based on the pH level of the application.

The Chemical Guard is only accessible in the relay menu when used in conjunction with a ﬂ ow switch (GF option) that is wired to the Binary Input #1 of the 3-9950.393-3 relay module.

When the Chemical Guard function is selected, Relay 1 is automatically defaulted to control and adjust the Oxidant chemical (Chlorine) and Relay 2 is defaulted to control and adjust the pH level of the application.

The control logic (Fig #) will always interrupt (disable) Relay 1 if the pH requires adjusting. Once the pH is corrected, Relay 1 is then available to add additional oxidants to the application.

The Chemical Guard allows Relay 1 and Relay 2 to be independently programmed as a low set point, high set point or a proportional pulse output.

Flow Switch Enabled

YES

Chemical Guard ON

YES

Is there flow?

YES

Is the pH correct?

YES

Is the Chlorine level

correct?

YES

Disable R1 and R2

Turn on R2

Disable R1

Turn on R1 Disable R2

1. Press and hold ENTER for 3 seconds

2. Go to the Relay Menu by pressing    then ENTER

3. Display shows "FLOW SWITCH" NO, press  and change to YES, Press ENTER to save

4. Press  screen should show "RELAY CHEMICAL GUARD" OFF

5. Press  and change to YES, press ENTER to save

6. Press  screen should show "Oxidizer" Mode OFF

7. Press  and select LOW

8. Press  x2 to set POINT DISPLAY

9. Press  to enter the LOW SET POINT value 3.0 ppm, press ENTER to save

10. Press  then press  to enter ON DELAY time of 15 seconds, press ENTER to save

11. Press  then press  to enter an OXIDIER HYSTERESIS of 1.0 ppm, Press ENTER to save

12. Press  x3 screen should show pH ADJUST Mode OFF

13. Press  to change the Mode to HIGH

14. Press  x2 then press  to enter HIGH SET POINT of 7.5

15. Press  then press  to enter ON DELAY time of 15 seconds, press ENTER to save

16. Press  then press  to enter pH ADJUST HYSTERESIS of 0.3 ppm

17. Press + at the same time to go back to the VIEW Mode

Example: Maintain a pool's chemistry using two dosing pumps at pH 7.2 and chlorine at

3.0 ppm

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Page 20

Standard Relay Mode

Set your relay functions to your own application requirements.

Once a setting is saved it becomes immediately active.

1. Press and hold ENTER for 3 seconds

2. Go to the Relay Menu by pressing    then ENTER

3. Press the  to select desired source. You will be asked to enter a code or password. Select source and press ENTER to conﬁ rm

4. Press  to enter the relay MODE selection screen

5. Press  and then  to select R1 MODE LOW. Press ENTER to confirm

6. Press  to R1 SET LOW. Press  to enter PPM value of 2.0

7. Use the  and  to change Setpoint. Press ENTER to save

8. Scroll  to the R1 HYSTERESIS menu

9. Press  to edit

10. Set the hysteresis for this relay. Set the value to 1.0 ppm

11. Press ENTER

12. Scroll down  to the R1 ON DELAY menu

13. Press  to edit

14. Set the turn-on delay in seconds for the relay: 15.0

15. Press ENTER Then

16. Exit to View Mode

 Relay function can be tested in the RELAY menu

Example: Set a relay R1 to turn on at a low setpoint of 2.0 ppm with a time delay of 15 seconds and turn off at

3.0 ppm.

Remember,

SET LOW + hysteresis = OFF

Relay 1 Source = CH1 Primary Relay 1 Mode = Low R1 Set Low = 2.0 R1 Hysteresis = 1.0 R1 on delay = 15.0 sec

Relay Modes

• Binary

When the relay source is set to “Binary", the Binary Inputs can sense if the input is ON (Closed) or OFF (Open). The four binary inputs only control relay activation and are not considered a measurement source. Each binary mode is independent and each of them can be assigned to a relay mode.

• Error Mode

Relay activated when any related failures occur for the system.

Example: Binary Input

A 3-4630.395 Flow Switch is mounted in the Chlorine ﬂ ow cell. The ﬂ ow switch will prevent the relay(s) from activating if the ﬂ ow to the cell is interrupted.

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Page 21

Relay Output Rate:

0 to 100 Pulses/min.

Pulse rate

0 pulses

100 pulses

7.5

Relay Modes

Hysteresis

Time

Low Setpoint

Process

Low Setpoint + Hysteresis

Hysteresis

Time

High Setpoint

Process

High Setpoint - Hysteresis

Relay energized

Relay de-energized

The 9950-3 relays are selectable and conﬁ gurable and can be used as switches that respond when the process value moves above or below a user-deﬁ ned setpoint or it can be used to generate a pulse at a rate proportional to the process value. They can be used for Low Alarm, High Alarm or Proportional Pulse triggering related to the process value. All relay functions are set up in the RELAY menus.

The 9950-3 supports the ability to activate the Red Backlight when a relay is activated. An optional check box is displayed during the programming of a relay that will turn the Red Backlight on when the relay is activated. The Red Backlight can be activated by any relay or relay mode.

Low Setpoint:

Relay is on when the measured value is less than or equal to the setpoint. Relay turns off when the measured value is equal to or greater than the Low Setpoint + Hysteresis.

High Setpoint:

Relay is on when the measured value is greater than or equal to the setpoint. The relay turns off when the measured value is less than or equal to the High Setpoint - Hysteresis.

Proportional Pulse Operation:

The transmitter can output a pulse at the rate deﬁ ned by the settings in the CAL menu and the sensor input. The maximum pulse output is 300 pulses per minute.

As the process value rises above the setpoint, the output will start pulsing in relation to the process value, the maximum pulse endpoint and the programmed pulses/minute. The pulse rate will change as the process value changes and approaches the programmed endpoint. This functionality can be used to precisely control the process.

The starting point, endpoint and maximum pulse rate are select able in the RELAY menus.

Typical usage would be to control solenoid-operated dosing pumps.

NOTE: Relay LEDs will ﬂ ash in PULSE mode.

100 pulses

Starting point Endpoint

In the example:

• The output will be 0 pulses/min. when value is less than 5.

• The output will be 50 pulses/min. when value is 7.5.

• The output will be 100 pulses/min. when value is 10 or greater.

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Page 22

Menu System

VIEW Mode Overview

The top level of screens are referred to as the VIEW Mode. The VIEW Mode displays the sensor measurement values, sensor raw measurement data, current output and relay status. The horizontal bar graph represents the primary measurement value that is also displayed in the numeric ﬁ eld above the bar graph. The bar graph is primarily used to display the full scale range of the sensor, but can be scaled via the OPTION menu item.

During normal operation, the 9950-3 displays the VIEW mode.

• To select a display, press the  or  arrow keys. The display selections scroll in a continuous loop.

• Changing the display selection does not interrupt system operations.

• No password is necessary to change display selection.

• Output settings cannot be edited from the View Mode.

• The display will return to the VIEW Mode if no button is pressed for 10 minutes.

MENU Mode Overview

The MENU Mode enables the user to view and conﬁ gure all menu items. The ﬁ ve menus available are: CAL, INPUT, LOOP, RELAY and OPTION.

MENU Mode is entered by pressing and holding ENTER for three seconds.

To select a menu, use the  and  arrow keys to highlight the desired menu and press ENTER to select the menu.

Error Handling

Errors occurring while on the measurement screens show a speciﬁ c message (e.g., Wrong Sensor). Once the error is resolved or cleared, the error message stops.

_ _ _ _ ._

CH1

MISSING SENSOR

9999.9

00.00

CH2

6 2 .8

00.00

_ _ _ _ ._

CH1

WRONG SENSOR

9999.9

00.00

CH2

6 2 .8

00.00

7 .0

7.0

GPMS

00.00

15.00

GPMS

00.00

15.00

°F

In the selected menu, use the  and  keys to navigate through the menu. Use the ,  and  keys to edit the selected item.

To save the new selection, press the ENTER key. A message displaying “Saving” will be displayed for 3 seconds. After this message is displayed, the newly selected value will be displayed, if applicable. To abandon the changes press the  and  arrows simultaneously.

Password Overview

The password is often required to start editing. Once entered correctly, this password will not be needed for subsequent edits, until the menu system is exited. The password is required when the menu system is re-entered.

Your choice of password (STD or CODE) is selected in the Options Menu.

• STD

The standard (STD) password is , pressed in sequence. This password is designed to protect the 9950 from unintentional changes. It is best suited for systems

where a group of people need to be able to change settings.

• CODE

The CODE default setting is 0000, adjustable to any 4-digit numerical code up to 9999. Using a personal code provides the maximum degree of security. This code can be modiﬁ ed in the Options menu.

Password Reset

Turn off 9950-3 Press and hold all 4 keys on keypad while turning on 9950 and unit will revert back to STD password.

Scrolling

In some cases, more than one message or measurement may need to be displayed. This is accomplished by alternating the message portions across the screen.

PASSWORD TYPE

WRONG CODE

TEXT 3

In the MENU mode, if the wrong code or password is entered, an ERROR message is displayed.

LANGUAGE

0000

LANGUAGE

ENTER CODE

LANGUAGE

PASSWORD

SAVING

TEXT 3

To change your CODE, go to OPTIONS mode, enter your desired code and press ENTER. (The STD password cannot be changed).

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Page 23

VIEW Mode

9950-3 VIEW Mode

FCI

CH2

-1.0

CH1

FREE CL

CH2

-1.0

0.0

25 C

0.0

7.2

0.0

2.43

0.5

7.0

2.43

0.5

7.0

RAW

CH1 115.00 nA +

CH2 +117 mV

GLASS IMPEDANCE

CH2 1049 MOhm ->

mg/l

TEMP

mg/l

15.0

mg/l

15.0

View Measurement Display 1 Displays the primary (top line) and secondary (bottom line) values from the sensors assigned to Channel 1

5.0

and 2. If the Bar Graph feature is enabled in OPTION menu, the bar graphs will also be visible.

If Channel 2 doesn't have a sensor assigned to it, the area will be blank.

This is the default VIEW display and does not time out.

View Measurement Display 2

5.0

Channel 1 electrode information: Chlorine sensor primary value and visual bar graph on top line.

Channel 2 electrode information: pH primary value and visual bar graph on bottom line.

View Measurement Display 3

5.0

Channel 1 electrode information: primary value, bar graph and custom name on top line.

Channel 2 electrode information: primary value, bar graph and custom name on bottom line.

Electrode Wellness Information Channel 1 electrode information: Chlorine sensor raw nanoamps (nA) value Channel 2 electrode information: pH electrode millivolt (mV) value

pH only, last measured glass impedance, press  key to manually update reading.

SENSOR DATA

CH1 FC1 ->

CH2 pH ->

SENSOR DATA

CH1 FC1 ->

CH2 pH ->

INTERNAL LOOPS FCI

TEMP

12.00

4.00

Select which sensor data to be reviewed by using the  and  arrows. CH 1 Using the  key, you will see the following screens:

[Cl Sensor S/N] [Cl Type and Range] [ZeroCAL: ppm & nA] [In Proc: ppm & nA ] [Temp at CAL] [pH at CAL] [Temp Offset]

Electrode Serial Number Identify the chlorine sensor type connected and its ppm range View user entered Zero Calibration data in ppm and nA Users in process calibration value when it is entered in the Calibration Menu Temperature recorded during user In-Process Calibration pH value recorded during user In-Process Calibration Temperature offset calculated from user-entered temperature calibration from

Calibrate Menu [Elapsed Time] [Low & High: C]

Total hours of operation

Lowest and highest temperatures the Cl sensor has been subjected to during

operation

CH 2 Using the  key, you will see the following screens:

[Serial Number] [Model Number] [pH Sensor Efﬁ ciency] [pH Offset Calibration] [Factory Impedance] [Usage Time] [Minimum pH] [Maximum pH] [Minimum Temperature] [Maximum Temperature]

Electrode Serial Number

Electrode Model Number

Calibration Slope Value

Offset

pH only, Factory pH glass Impedance

Electrode Runtime in Hours

Minimum Measured Value

Maximum Measured Value

Minimum Measured Temperature

Maximum Measured Temperature

Displays the internal 4 to 20 mA LOOP output for each channel assigned primary and secondary sources. (3.6, 22.00 are error output values).

MODULE LOOPS pH FCI MOD2 A MOD2 B

18.00

12.00

8.00

4.00

Displays the Module 4 to 20 mA LOOP output for each channel assigned primary and secondary sources. (3.6, 22.00 are error output values).

463X Chlorine Systems Manual

Page 24

VIEW Mode

RELAY STATUS

RELAY 1 RELAY 2 RELAY 3 RELAY 4

BINARY STATUS FLOW SWITCH BINARY 2 BINARY 3 BINARY 4

MODBUS STATUS ADDRESS BUS MSG CNT 9950 MSG CNT MSG ERR CNT

SYS CONFIG CH1 CH2 RELAY MOD1 MOD2

GENERATION 2

SW VER 9950 S/N

TEXT 1

MENU ->

TEXT 3

OFF OFF OFF

OFF

999 99999 99999 99999

FREE CI

399504033

39950408

4-20 OUT

00-06

0123456789

Relay status is stated to the right of the relay number as (OFF, ON) for each relay.

When the ﬂ ow switch is enabled, the label for Binary Input will automatically change to FLOW SWITCH. The Binary labels can be manually conﬁ gured. Binary labels can be edited by pressing  on the Binary Status screen and scrolling through the Binary Label submenu. Pressing Cancel ( and  simultaneously) returns to the Binary Status screen in View Mode. English, French, German, Italian and Spanish only. Binary status is stated to the right of the binary channel number as (OFF, ON) for each of the four binary inputs.

If there is no module installed, the error code "Missing Module" will appear and blink.

SYS CONFIG shows channel, parameter and relay module part number.

Generation Screen shows version of software and serial number of unit. Note: Top shows the Generation of 9950

MENU-> will allow access to top level menu by pressing the  key.

DATE

09/01/2016

09:06

DATE and TIME display show the current system date and time

Important

The Relay, Mod1 and Mod2 number returned by the Sys Conﬁ g Screen is not the Mfr. Part No. To convert from the displayed number to the GF Mfr. Part No. use the chart below.

Module RELAY, MOD1 or MOD2 Mfr. Part No.

Dual Channel 4 to 20 Out 39950408 3-9950.398-2

Modbus Module 39950409 3-9950-395M

Relay Four Mechanical 399504031 3-9950.393-1

Relay Two SS and Two Mechanical 399504032 3-9950.393-2

Relay Two Mech and Four Binary 399504033 3-9950.393-3

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Page 25

Calibration

For greater accuracy the initial calibration of the system must be performed in the following order:

1. Temperature (only required on the initial start up of the FCl electrode).

CAL

INPUT LOOP RELAY OPTION

ENTER

WARNING Temperature Calibration

Calibrate temperature element: Must be performed on new chlorine electrodes. The temperature element is located in Chlorine Electrode (CH 1), see screens 1 and 2 below. Once calibrated the temperature element does not have to be calibrated for the life of the chlorine electrode.

Chlorine Electrode Calibration

2. pH electrode (2 point calibration required using pH buffer 7 and pH buffer 4 or 10).

3. Zero calibration, single point calibration in DI water.

4. Chlorine sensor. (Single point calibration using a DPD reference).

• Before initial calibration, the FCl electrode must be connected in the 3-2650-7 electronics and system powered. The Chlorine electrode must be installed in the ﬂ ow cell with chlorinated water ﬂ owing through the ﬂ ow cell for at least 4 hours.

• It is recommended that the FCl electrode be process calibrated 24 hours after the initial "Start up" calibration.

• Chlorine and pH calibration screens will be shown only when a valid sensor is detected.

• Chlorine calibration should be stable per EPA 334.0 and should require additional calibration every 14 to 21 days.

• pH calibration is required over a period of time established by the customer based on the application requirement.

CH 1 FREE CI

OFF

HOLD OUTPUTS

CH 1 TEMP

SET

TEMPERATURE ->

CH 1 FREE CI

SET

ZERO CAL

CH 1 FREE CI

SET

IN PROCESS ->

CH 1 FREE CI

LAST CAL

MM - DD - YYYY

CH 1 FREE CI

NEXT CAL

MM - DD - YYYY

ON prevents relays from activating while making adjustments and relays in PULSE mode will suspend pulsing. 4 to 20 mA output is held until the user exits the CAL menu or turns it OFF. Select ON/OFF. Default = OFF

Enter process temperature from a reference thermometer: °C or °F. Units are set up in the INPUT Menu. CAUTION: Refer to the calibration procedure on page 13

The ZERO CAL is only required to be performed when a chlorine electrode is initially installed. The chlorine sensor should be placed in a beaker of non-chlorinated water (DI water). When  is pressed, the LIVE readings in nA is displayed, but cannot be edited. Once the nA are stable press ENTER to save the ZERO OFFSET.

Enter process chlorine value determined by customer supplied DPD test kit.

After a successful chlorine calibration the LAST CAL display is automatically updated and date stamped with the date of the calibration.

Operator manually enters the next required calibration date. To avoid an immediate error code, this date must be at least one day after the LAST CAL date. A warning will show up on the chlorine sensor channel showing "Calibration is Due". To override this warning the operator can input a year that is several years away (ie 2050).

CH FREE FCI

RESET CAL

This menu resets Cl readings and Zero Calibration back to Factory Calibration. WARNING! User entered Cl calibration settings will be lost, the Temperature, Zero Point and Process Calibration will need to be done again.

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Page 26

Calibration

pH Electrode Calibration

CH 2 pH

OFF

HOLD OUTPUTS

CH 2 pH

°SETF

pH STANDARD ->

CH2 pH

SET

pH SLOPE ->

CH 2 pH

100LAST CAL.00

12 - 31 - 2015

CH 2 pH

NEXT CAL

MM - DD - YYYY

CH2 pH

SET

RESET pH CAL ->

Applies an offset to the pH measurement. The slope value and the standard value must be at least 2 pH units apart. The ideal values are the minimum and maximum values of your process. An error message is displayed if offset is too high.

Applies a slope to the pH measurement. The slope value and the standard value must be at least 2 pH units apart. The ideal values are the minimum and maximum values of your process. An error message is displayed if the slope is too high or low.

After a successful pH calibration, the LAST CAL display is automatically updated and date stamped with the date of the calibration.

Operator manually enters the next required calibration date. A warning will show up on the pH sensor channel showing "Calibration is Due". To override this warning, the operator can input a date that is several years away (ie 2050).

Press  to reset pH calibration to factory default. This is useful to wipe out suspected corrupted calibration process prior to performing a new calibration.

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Page 27

INPUT Menu

CAL INPUT

INPUT

LOOP RELAY OPTION

Allows manual selection of sensor type assigned to the channel. Channel 1 is dedicated to Chlorine electrodes (FCl and Cl02) Channel 2 is dedicated to pH

electrode.

Allows user to reset 9950-3 Transmitter to Factory settings or select "NONE" for sensor input. This feature is used when a pH electrode is not being used (Cl02).

ENTER

Allows user to conﬁ gure electrode speciﬁ c parameters such as selecting engineering units, Temperature (°C or °F) and Chlorine (mg/l or PPM).

ENTER

Note: User is strongly discouraged from changing the sensor type away from the correct sensor.

CH 1 FREE CI ->

CH 2 pH ->

CHANNEL 1

NAME

FREE Cl

CHANNEL 1

PPM

UNITS

CH 1 FREE CI

°C

TEMP UNITS

CH 1 FREE CI

AVERAGE

OFF

CH 1 FREE CI

TYPE

FREE Cl

Select the desired channel. Channel 1 is dedicated to Chlorine electrodes (FCl and Cl02). Choose FACTORY, FREE Cl or Cl02.

Assign a speciﬁ c name to the measurement point. Default name is the electrode type.

Select the Engineering units to be displayed. Select PPM or MG/L (Default PPM)

Select the Engineering units of the Temperature on the display. Select °C or °F. (Default is °C)

Dampens Display, Output and Relay Response Rate. Select LOW, MED, HIGH, OFF Default = OFF

Current Channel type is listed. Manually change the channel type to match sensor type if sensor is not found by S3L. Select FACTORY, FREE Cl, Cl02 DEFAULT = FACTORY, the 2751-7 (pH Electronics) and 2650 (Chlorine Electronics) will automatically be found by the controller.

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Page 28

INPUT Menu

pH INPUT Menu

CH 1 FREE CI ->

CH 2 pH ->

CHANNEL 2

NAME

MANUAL pH

OFF

MANUAL pH VALUE

7.00

CH 2 pH

AVERAGE

OFF

Select sensor type assigned to the channel. Channel 2 is dedicated to pH electrode. Choose FACTORY, NONE (use with Cl02) or pH electrode.

Assign a speciﬁ c name to the measurement point. Default name is the electrode type (Free Chlorine or NONE for Chlorine dioxide).

Select MANUAL pH or Electrode. If manual pH is set to "OFF", the pH value from a connected pH electrode will be used for FREE CHLORINE calculations and pH measurement. When manual pH is selected "ON" , a pH value manually entered is used for all Chlorine calculations.

Enter your pH value here if a pH electrode is not connected. Default value = 7.00

Dampens Display, Output and Relay Response Rate. Select LOW, MED, HIGH, OFF Default = OFF

CH 2 pH

TYPE

Current Channel type is listed. Manually change the channel type to match sensor type if sensor is not found by S³L. Select NONE, FACTORY, pH DEFAULT = FACTORY, the 2751-7 (pH Electronics) will automatically be found by the controller. Select NONE when using Chlorine dioxide with NO pH electrode.

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Page 29

4 to 20mA Output (LOOP Output)

The following can individually be set for each loop on the 9950-3.

CAL INPUT

LOOP

RELAY OPTION

ENTER

Loops 1 and 2 are in the 9950-3 base unit. Loops MOD1 A and MOD1 B are present when a loop module is in the Module 1 Slot. Loops MOD2 A and MOD2 B are present when a loop module is in the Module 2 Slot.

LOOP 1

SOURCE

NONE

LOOP 1

LABEL

FCI

L1 4 mA SETPOINT

0.00

PPM

L1 20 mA SETPOINT

5.00

PPM

LOOP 1

ERROR VALUE

22 mA

L1 ADJUST 4 mA

4.00

L1 ADJUST 20 mA

21.0

L1 TEST LOOP

12.05

Select source for each loop. Choose NONE, FCL, ClO2, pH or Temperature. Temperature values are from the Chlorine sensor.

English, French, German, Italian and Spanish languages only. A custom label can be assigned to the loop for ease of identiﬁ cation. Default name will be the SOURCE sensor type chosen above.

(ALL) Set value corresponding to desired 4 mA output. 6 digits max. Default = 0 ppm (Chlorine), 0 (pH), 0 °C (32 °F) (Temperature)

Set value corresponding to desired 20 mA output. 6 digits max. Defaults = 5.0 ppm (Chlorine), 14 (pH), 45 °C (113 °F) (Temperature)

(ALL) Set desired LOOP output value when sensor error (e.g., bad sensor, broken wire) is detected. Select (3.6 mA, 22 mA,

or NONE). Default = 22

(ALL) Allows ﬁ ne-tuning to compensate for errors in other equipment connected to the 9950-3. Adjust the current output at 4 mA. The display value represents the precise current output. Adjustment limits: from 3.80 mA minimum to 5.00 mA maximum. Default = 4.00 mA

(ALL) Allows ﬁ ne-tuning to compensate for errors in other equipment connected to the 9900. Adjust the current output at 20 mA. The display value represents the precise current output. Adjustment limits: from 19.00 mA minimum to 21.00 mA maximum. Default = 20 mA.

(ALL) Press  or  to manually control the output current value from 3.8 mA to 21.00 mA to test the output of LOOP. The current loop will revert to automatic control when this menu item is left.

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Page 30

Relay Menu

CAL INPUT LOOP

RELAY

OPTION

ENTER

CHEMICAL GUARD Menu

ENTER

FLOW SWITCH?

RELAY 1

CHEMICAL GUARD

OFF

OXIDIZER

MODE

OFF

RELAY 1

LABEL

OXIDIZER

OXIDIZER SET LOW

0.00

PPM

OXIDIZER SET HIGH

0.00

PPM

OXIDIZER MODE

MODE

PROP PULSE

OXIDIZER PULSE MIN

5.00

PPM

OXIDIZER PULSE MAX

0.10

PPM

R1 MAX RATE

120.00

mPULSES/MINA

A ﬂ ow switch is necessary to enable the Chemical Guard feature. Verify the use of a ﬂ ow switch by selecting YES. If NO is selected Chemical Guard will not be accessed and will go to Standard Relay Mode.

Enable the Chemical Guard feature by changing to ON. If Chemical Guard is not enabled go to RELAY 1 source by pressing  once. See Standard Relay information on page 20.

RELAY 1 will automatically be assigned to control Oxidizing chemicals using the Input source of the Chlorine Sensor (CH1). MODE available are LOW, HIGH or PROPORTIONAL PULSE. NOTE: Chemical Guard must use a pH electrode. If the pH input is changed to MANUAL pH input, the Chemical Guard feature is disabled and the standard relay modes must be used control the system until the pH electrode is replaced.

English, French, German,Italian and Spanish languages only. A custom label can be assigned to the relay for ease of identiﬁ cation. Default name will be the "Oxidizer".

Relay turns on if the process measurement is equal to or lower than this value and the pH value is correct. Set to desired value. See Chemical Guard overview.

Relay turns on if the process measurement is equal to or higher than this value and the pH value is correct. Set to desired value. See Chemical Guard overview.

Proportional Pulse Mode varies the frequency of pulses in direct proportion to minimum and maximum set points.

Enter the desired minimum set point (END POINT) of the application. The number of pulses will be reduced to the chemcial dosing pump as the set point is reached to prevent overdosing of chemicals. Default = 5.00 ppm

Enter the maximum off set (START POINT) from desired set point (SEND POINT) of the application. This is usually the maximum allowable OFF SET value from the set point of the application. The closer to the starting point the more pulses will be sent to the chemical pump. Default = 0.01 ppm

Set desired maximum pulse rate (300 max) NOTE: Pulse width ﬁ xed at 100 ms.

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Page 31

Relay Menu

CHEMICAL GUARD Menu

RELAY 1 ACTIVATE

RED BACKLIGHT

pH ADJUST

MODE

OFF

pH ADJUST

SET LOW

00.00

RELAY 2

LABEL

OXIDIZER

Select YES to have the Red Backlight illuminate during relay activation, NO to not have the Red Backlight activated by the relay activation.

RELAY 2 will automatically be assigned to control pH adjusting chemicals using the Input source of the pH Electrode (CH2). MODE available are LOW, HIGH or PROPORTIONAL PULSE. NOTE: Chemical Guard must use a pH electrode. If the pH input is changed to MANUAL pH input, the Chemical Guard is disabled and the standard relay modes must be used to control the system until the pH electrode is replaced.

Relay turns on if the process measurement is equal to or lower than this value. Set to desired value. See Chemical Guard overview.

English, French, German, Italian and Spanish only. A custom label can be assigned to the relay for ease of identiﬁ cation.

pH ADJUST

SET HIGH

0.00

pH ADJUST

PULSE MIN

7.00 pH

pH ADJUST

PULSE MAX

8.00 pH

R1 MAX RATE

120.00

mPULSES/MINA

RELAY 2 ACTIVE

RED BACKLIGHT

RELAY 2

TEST RELAY

mAA

Relay turns on if the process measurement is equal to or higher than this value. Set to desired value. See Chemical Guard overview.

Enter the maximum offset (START POINT) from desired set point (SEND POINT) of the application. This is usually the maximum allowable OFFSET value from the set point of the application. The closer to the starting point the more pulses will be sent to the chemical pump. Default = 7.00 pH

Set desired maximum pulse rate (300 max) NOTE: Pulse width ﬁ xed at 100 ms.

Select YES to have the Red Backlight illuminate during relay activation, NO to not have the Red Backlight activated by the relay activation.

(ALL) Press  or  to turn relay on or off for testing purposes.

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Page 32

Relay Menu

STANDARD RELAY Menu

RELAY 1

SOURCE

mNONEA

RELAY 1

MODE

OFF

RELAY 1

LABEL

RELAY 1

R1 SET LOW

0.10

PPM

R1 SET HIGH

5.00

PPMA

R1 HYSTERSIS

0.50

PPM

R1 ON DELAY

All relay sources can be assigned to Relay 1 – 4. Choose NONE, FCl, ClO2, pH, Temperature, Binary 1 – 4. If CHANNEL 1 is assigned a chlorine sensor the temperature source comes from the chlorine sensor.

(ALL) Select the desired mode of operation for the (R1) output (OFF, LOW, HIGH, PROP PULSE, ERROR mode) (See page 18, Relay Modes). Default = OFF. Continue stepping through to select R2, R3 and R4 output modes. When MODE is set to ERROR, relay turns on if sensor problem is detected on either channel. ON DELAY delays the turning on of the relay until after the programmed delay time.

English, French, German, Italian and Spanish only. A custom label can be assigned to the relay for ease of identiﬁ cation.

(ALL) (Shown if LOW mode) Relay turns on if process measurement is equal to or lower than this value. Set desired value. Default = Chlorine 0.10 PPM, Temperature 25 C, pH 4.0

Relay turns on if process measurement is equal to or higher than this value. Set desired value. Default = Chlorine 5.00 PPM, Temperature 45 C, pH 8.0

Hysteresis prevents the mechanical relays from chattering around the set point. Set amount (in units of measure from INPUT Mode) to add to SET LOW or SET HIGH values.

5.0

SEC

Set seconds (up to 9999.9) to wait before activating relay once the relay condition is true.

NOTE: Screens below are only visible when Porportional Pulse Mode is selected.

R1 PULSE MIN

5.00

PPMIPLE

R1 PULSE MAX

0.10

PPMF

R1 MAX RATE

120.00

mPULSES/MINA

RELAY 1 ACTIVATE

RED BACKLIGHT

RELAY 1

TEST RELAY

Set desired maximum pulse rate (300 max) NOTE: Pulse width is ﬁ xed at 100 ms.

Select Yes to have the Red Backlight illuminate during relay activation, No to not have the Red Backlight activated by the relay activation.

(ALL) Press  or  to turn relay on or off for testing purposes. Can also be used to reset or latch/unlatch the relay. Does NOT reset the Totalizer.

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Page 33

OPTION Menu

CAL INPUT LOOP RELAY

OPTION

ENGLISH FRANÇ

DEUTCH

ESPAÑOL

Зݧ

TIME FORMAT

ENTER

Choose desired the language for the 9950-3. Default = English

24 HR

BINARY ON

SET TIME

08:56

TIMER

DATE FORMAT

MM/DD/YYYY

MULTIPLE

SET DATE

02/25/2016

OFF

SET DECIMAL MARK

999.99

SELECT UNITS

METRIC

CONTRAST

Choose a time format between a 24 Hour or an AM/PM clock. Default = 24 HR

Set the time according to the format chosen 00:00

Date Format; MM/DD/YYYY, DD/MM/YYYY, YYYY/MM/DD

Set the date according to the format chosen 00/00/0000

Choose either comma or point according to local practices. Default = 999.99 (point).

Choose METRIC or US CUSTOMARY

Adjust the displays contrast for best viewing. A setting of 1 is lower contrast, 5 is higher and 3 is default.

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Page 34

OPTION Menu

WHITE BACKLIGHT

AUTO LOW

RED BACKLIGHT

DISPLAY

BAR GRAPH

PASSWORD TYPE

STD

PASSWORD TYPE

CODE

CH2 BAR GRAPH MIN

0.00

PPM

CH2 BAR GRAPH MAX

100.00

PPM

CH1

_ _ _ _._

PPM DECIMAL

CH1

_ _ _ _._

°F DECIMAL

White Backlight: OFF, LOW, HIGH, AUTO LOW, AUTO HIGH

The Red Backlight illuminates when an error condition is detected or user selected relay(s) are activated. Default = ON

Display Bar Graph: ON, OFF When enabled, user enters range to be displayed.

(ALL) Select STD, CODE. Default = STD (Refer to page 22 for further detail)

(CODE) If code is selected Default Code = 0000 (Refer to page 22 for further detail)

Enter a value to represent bar at minimum. Default = 0

Enter a value to represent bar at maximum. Defaults = 5.00 ppm (Chlorine), 14 (pH)

(ALL) Set the decimal to the best resolution for your application for both CH1 and or CH2. The display will automatically scale up to this resolution for each channel. Select 0, 1, 2, 3, or 4 decimal places, (varies by parameter). Default = 1 Decimal Place

(Chlorine electrodes) Set the Temperature decimal to the best resolution for your application for CH1. The display will automatically scale up to this resolution. Select 0, 1, or 2. Default = 1 Decimal Place

MEMO

SEC

(ALL) Enter 17-character string, if desired. Default = MEMO

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Page 35

Modbus Menus

MODBUS

MODULE

NONE

MODBUS

COMMUNICATION

SETTINGS ->

MODBUS

REMOTE UPDATE

9950

Select NONE, MOD 1 or MOD 2. The MODBUS module must be installed into Module 2 of the 9950.

Press the  key to change the settings of the Modbus Module. See page 36 for Modbus Communication Settings Menus.

Setting Modbus Remote update to YES allows remote Modbus device to change the settings on the 9950-3. Setting Modbus Remote Update to No prevents remote devices from make any changes to the 9950-3. Remote device will still be able to read all of the Modbus parameters.

GENERATION 3

SEC

USER MANUAL

100.00

SEC

Displays Transmitter Generation Version.

QR code for user manual.

463X Chlorine Systems Manual

Page 36

Modbus Menus

OPTION Menu

MODBUS

COMMUNICATION

SETTINGS ->

Press the  key to change the settings of the Modbus Module

Modbus Communication Settings Menus

MODBUS

ADDRESS

NETWORK

Set the Modbus address of the 9950-3. The default address is 95

The 9950 Modbus Module has an electronic termination network.

TERMINATION

MODBUS

BAUD RATE

19.2 K

MODBUS

PARITY

EVEN

MODBUS

ENDIAN

BIG

RESET TO

The Termination can be activated by setting the value to Yes. The default value is No (the termination is off).

Set the baud rate of the Modbus network. The default value is 19.2K baud, 19200 baud.

Set the parity of the Modbus network. The default value is Even parity.

Set the byte order in which the 9950-3 transmits ﬂ oating point numbers in the Modbus protocol. The default value is Big Endian.

DEFAULT

ACTIVATE

SETTINGS

Reset all Modbus setting to the default values.

ACTIVATE SETTINGS: YES sends the changes to the Modbus Module, NO keeps the current settings

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Page 37

9950 Field Software Upgrade

The 9950 upgrade ﬁ le will be available on the Georg Fischer website. You will need a USB ﬂ ash drive that is formatted, using Microsoft Windows, in either FAT16 or FAT32 format. Do not use exFAT or NTSF formats. These are incompatible with the 9950.

The upgrade ﬁ le is named Update.Fwc. Copy the ﬁ le to the root directory of the Flash Drive. Do not change the name of the ﬁ le or store the ﬁ le in a sub directory on the Flash Drive. The 9950 will only look in the root directory for the speciﬁ c ﬁ le, Update.Fwc.

Important! Do not use a USB extension cable. The USB ﬂ ash drive must be directly connected to the 9950 USB port.

Sample Flash Drive Directory with Update File

Updating the 9950

Updates available on www.gfps.com.

1. Disconnect power from the 9950.

2. Insert the Flash Drive into the 9950 USB slot.

3. Reconnect power to the 9950.

4. LED 1 on the 9950 will ﬂ ash quickly as the unit searches for a Flash Drive and the correct ﬁ le.

5. When the 9950 detects a Flash Drive and a valid update ﬁ le, LED 2 will slowly ﬂ ash during the update process.

6. The update process takes approximately 30 seconds.

7. After a successful update the 9950 will boot to the normal screen.

8. If the update is successful, disconnect power, remove USB drive, reconnect power

and review application settings.

Troubleshooting

If, after 10 seconds, the unit boots to the normal screen, the 9950 was unable to ﬁ nd the Flash Drive or the ﬁ le.

a. Verify the Flash Drive has been formatted in either FAT16 or FAT32 format, the upgrade ﬁ le is in the root directory of the Flash Drive, and the ﬁ le name is Update.Fwc. You may also need to try a different ﬂ ash drive.

b. If LED 4 on the 9950 is continuously illuminated, this

indicates either the ﬁ le found on the Flash Drive is corrupted, or power was interrupted during the upgrade

process. Remove power from the 9950. Remove the Flash Drive. Apply power to the 9950.

c. If the 9950 starts normally, the ﬁ le on the Flash Drive was

corrupted. Download a new copy of the update ﬁ le and copy it to the Flash Drive. Repeat the update instruction with the new ﬁ le.

d. If the 9950 starts up and stops with LED 4 on and a

blank screen, this indicates that the update process was

interrupted and the 9950 cannot start. Disconnect power from the 9950. Reattach the Flash Drive to the 9950. Repeat the upgrade procedure.

e. If the 9950 still does not respond after the second

upgrade attempt to: Download a new copy of the update ﬁ le and copy it to a different Flash Drive. Repeat the update instruction with the new Flash Drive.

463X Chlorine Systems Manual

Page 38

Troubleshooting

Condition Possible Causes Suggested Solution

Incorrect sensor installed on channel Connect correct sensor to channel

Wrong Sensor

Sensor Type set incorrectly in 9950-3

Wrong Code Wrong password entered Enter correct password (see page 22)

Set correct sensor TYPE in INPUT menu (see page 27)

Backlight inoperative

Relays inoperative

Relay always ON

– – – – – Measurement exceeds display capability Change unit of measure

Missing Module

Wrong Module

Calibration Due

Backlight turned OFF (NOTE: Backlight can turn off automatically in AUTO mode)

Relay Module installed incorrectly Remove and reseat Relay Module

Wrong settings in RELAY menu

Flow Switch OFF Turn Flow Switch ON

Hysteresis value too large Change the hysteresis value

Defective Relay Module Replace Relay Module

4 to 20 mA Module or Modbus Module is not installed in the Module Slot

The wrong Module 4 to 20 mA or Modbus Module) is installed in the slot

Calibration is required for all new sensors

Calibration was reset to factory

Next Calibration date reached

Set BACKLIGHT to LOW, HIGH, AUTO LOW or AUTO HIGH in OPTION menu.

Use test relay to verify relay operation then check relay settings.

Install the module in the correct slot

Replace module with the correct module

Do the Calibration

Next Calibration date was not set

No pH value pH electrode faulty

No Flow No ﬂ ow detected through the Flow Switch

Manual pH compensation has been selected

Man pH

463X Chlorine Systems Manual

Replace pH electrode

Place pH electrode input to Manual

Verify water source is turned ON

Verify the ﬂ ow cell outlet ball valve is open

Disable Flow Switch input via Relay Menu

Replace pH electrode

Set Manual pH to OFF

Page 39

Condition Possible Causes Suggested Solution

No Probe

(Chlorine or pH)

Check Preamp

(Chlorine or pH)

Troubleshooting

9950 "cannot communicate" with Chlorine or pH electrode

Missing sensor or bad temperature element

9950 "cannot communicate" with the Chlorine or pH electronics

• Check wiring

• Install or replace electrode

Check wiring

Replace 2751-7 or 2650 Electronics

Backlight of Screen is RED

Broken Glass

Hi Impedance

Check Cal

(pH only)

Error is detected or Relay is activating the red backlight

pH electrode glass has been damaged and caused very low impedance

The measured pH electrode impedance is above the high impedance level.

Electrode could be in air Ensure electrode is submersed at all times

Slope and/or Offset are out of range

Calibration Error Messages

Message Cause Solution

Out Of Range Use Manual Calibration

Err Too Large To Calibrate

Cal Error Out Of Range

Slope Too Close To Standard (pH) Difference in calibration values

Standard Too Close To Slope

(pH) Buffer not found; Error > ±1.5 pH units

(pH) Offset > 1.3 pH units; Slope error > 100%

Chlorine - nA out of range when compared to the DPD sample

pH - Calibration exceeds the maximum offset of the reference junction allowed

must be > 2 pH units

(pH) Difference in calibration values must be > 2 pH units

Correct error condition

Visually inspect pH electrode for cracked and/or chipped glass

Visually inspect the pH electrode and clean if necessary

Set pH Slope or Standard (pg. 32 & 60)

Reset pH CAL (pg. 32)

• Use 4 and 7 pH buffers

• Clean sensor

• Use manual calibration method

• Check reference

• Clean sensor

• Replace sensor

• Check sensor range

• Check reference

• Replace sensor

• Check sensor

• Use fresh buffer

• Use two different buffer values

• Clean sensor

• Use fresh 4, 7 and 10 pH buffers

• Use two different buffer values

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Page 40

2630 Amperometric Chlorine Electrodes

Overview

pH Compensation for Free Chlorine

Amperometric free chlorine sensors measure only hypochlorous acid. As noted in the text above and in Figure 1, the ratio of hypochlorous acid and hypochlorite is pH dependent. The GF Free Chlorine Panel assemblies comes complete with a pH electrode to ensure accurate free chlorine measurement if the pH changes.

100

% free chlorine

5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0

HOCl OClˉ

pH at 25 °C

Figure 1

Automatic pH Compensation and Free Chlorine

In many applications, the process pH does not signiﬁ cantly ﬂ uctuate and only a chlorine sensor and instrument are

necessary for accurate chlorine measurement. When the pH varies the free chlorine concentration cannot accurately determined without the use of automatic pH compensation.

The addition of the 3-2724-00 (159 001 545) pH electrode along with its 3-2751-7 (159 001 957) sensor electronics to the system makes pH compensation extremely easy and automatic even with wide ﬂ uctuations or high pH.

See Figure 2 for pH variation recommendations.

Chlorine dioxide is not pH dependant and does not require a pH electrode or electronics.

±0.3

±0.2

pH variation

±0.1

6.5 7.0 7.5 8.0 8.5 9.0 Sample pH

Automatic pH compensation recommended

in ranges within shaded area

Figure 2

463X Chlorine Systems Manual

Page 41

Maintenance

2630 Free Chlorine Electrode 2632 Chlorine Dioxide Electrode

It is required to calibrate the sensor after servicing the membrane and electrolyte. See page 10.

Verifying the sensor's accuracy using the DPD method should be performed to determine if the sensor requires maintenance.

1. Inspect the membrane for dirt or damage. Replace the membrane if it's torn or if the gold cathode is visible.

2. If the membrane is dirty clean the membrane by soaking it in 1 - 5% HCL and gently wash with a stream of DI water (do not use any mechanical device on the membrane).

Reﬁ ll Procedure:

When adding electrolyte, be prepared for an accidental spill. Working near a sink is recommended.

1. Remove the membrane cap from the front of the sensor.

2. Turn the sensor upside down and shake the sensor

vigorously to remove the internal electrolyte.

3. Fill supplied syringe with electrolyte solution. Additional caution should be taken when handling Chlorine Dioxide electrolyte solution.

4. Place the electrode on a level surface.

5. Insert syringe needle fully into one of the eight electrode

holes while 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 ﬁ ll until solution begins to ﬂ ow 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 ﬁ nger tight. Do not use tools.

To avoid damage and contamination, do not touch the white membrane surface on the membrane cap.

Diluted HCl can irritate the eyes and skin, use proper safety equipment. Do not use surface tension reducing chemicals, detergents or solvents on the membrane.

• If a fresh water rinse does not clean the membrane, it will need to be replaced.

• Keep spare membrane caps available. Membrane caps carry no warranty.

Avoid skin or eye contact with electrolyte solution. Wear rubber gloves and goggles.

* Safety Data Sheets (SDS) are available online at www.gfps.com.

CAUTION:

DO NOT touch the gold-plated tip or the membrane of the sensor.

Storage

If the sensor or panel assembly is to be removed from service for a period of time the sensor must be properly prepared for storage and may need to be recommissioned.

Storage Periods:

1 week or less:

• Close the drain valve, then close the inlet valve of the ﬂ ow cell, to maintain water inside the ﬂ ow cell to keep the membrane wet.

• If draining the ﬂ ow cell is required, remove the sensor from the cell and the 2650 electronics and store in the

shipping bottle with tap water added.

Continue to page 42 for additional storage periods

DO NOT FREEZE

Dry electrodes are shipped and need to be stored between –10 ºC to 60 ºC (14 ºF to 140 ºF) at a relative humidity that does not exceed 95%.

The primary concerns when storing the electrode is damage to the membrane.

463X Chlorine Systems Manual

Page 42

Storage continued and Reconditioning

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 shipping bottle, DO NOT ADD WATER.

Recommissioning Procedure:

1. Fill the sensor with the electrolyte as outlined in Maintenance, see page 10, and install the membrane cap.

2. The sensor will have to be polarized in the ﬂ ow cell with ﬂ owing Chlorinated water before being used. Note: This may take 30 to 120 minutes before calibration can be performed.

3. If the sensor does not recover after recommission, follow steps 1-10 outlined in Reconditioning.

4. If the sensor still fails to work properly, continue with steps 11-17.

CAUTION!

Bleach and Chlorine Dioxide solutions are very corrosive and may release dangerous gases if it comes in contact with acids.

•

Wear proper protective clothing (gloves and eye protection)

• Avoid contact with skin and eyes

• Observe all warnings on safety data sheets

• Avoid spilling bleach and possible contact with acids

Figure 1

Figure 2

Curved Surface

Required to recondition a sensor:

• DI Water

• Beaker (any size available)

• Polishing Sheets (Included in sensor maintenance kit)

• Free Chlorine: Chlorine Bleach (13% concentration)

• Chlorine Dioxide: Aqueous Chlorine Dioxide solution

Reconditioning Procedure (Steps 1-10):

1. Remove the sensor from the 2650 electronics.

2. Remove the membrane cap.

3. Place the sensor on a ﬁ rm, ﬂ at surface with gold cathode pointing upward.

4. Apply a small amount of water to the blue (coarse) polishing paper (dull side).

5. Polish the gold electrode by moving the paper in a circular pattern for 30 seconds. DO NOT go back and forth in a single direction. See Figure 1.

6. Rinse the sensor tip with DI water.

7. Apply a small amount of DI water to the white (ﬁ ne) polishing paper (dull side) and polish the gold electrode by moving the paper in a circular pattern for 30 seconds. DO NOT go back and forth in a single direction. See Figure 1.

8. Rinse the sensor tip with DI water.

9. Top off the sensor with electrolyte and inspect membrane for dirt or damage. Replace if necessary.

10. Insert the sensor into the 2650-7 electronics and apply power.

Reconditioning Procedure (Steps 11-17):

11. Fill beaker with a 12 mm (½ inch) of the appropriate solution.

12. Position or suspend the sensor 6 mm to 12 mm (¼ in. to ½ 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 depend upon the temperature of the bleach.

15. Once the sensor's nA reading reaches approximately 300-360 nA, allow the sensor to remain in the beaker, suspended over the appropriate solution, for an additional 20 minutes.

• If sensor does not recover, cover the beaker to avoid air contamination.

• Contact the factory for assistance (www.gfps.com)

16. After 20 minutes, remove the sensor from the beaker and install it into the ﬂ ow cell and restore ﬂ ow to the system.

17. Calibrate the sensor after the system has become stable.

463X Chlorine Systems Manual

Page 43

2724 DryLoc pH Electrode

Electrode Date Code

• The electrode date code indicates the manufacturing date of the electrode.

• Electrodes should be put into service as soon as possible and should not remain in the box for more than two years.

• Over time, the storage solution (found in the "boot" covering the electrode tip) will evaporate or leak, allowing the delicate sensing tip and reference junction to dry.

• To rehydrate a dry electrode, soak the tip in 3.0 mol/L KCl solution for 24 to 48 hours. Preheating the KCl solution to <140 °F may speed up the re-hydration process.

• Electrodes more than 2 years old may still be functional, but will take longer to rehydrate.

• Restoration may not be effective for severely dehydrated electrodes.

First Digit = Month

N = January

M = February

L = March

K = April

J = May

H = June

G = July

F = August

E = September

D = October

C = November

B = December

Example: L6 = manufactured in March 2021

Second Digit = Year

6 = 2021

7 = 2022

8 = 2023

9 = 2024

0 = 2025

1 = 2026

2 = 2027

3 = 2028

4 = 2029

5 = 2030

6 = 2031

7 = 2032

Electrode Care

Depending on the type of application and the accuracy needed, pH and ORP electrodes will require routine maintenance. Contaminated/dirty electrodes should be swapped with properly cleaned conditioned and calibrated electrodes.

The solution used to clean an electrode varies depending on the type of coating:

Caution: Always wear appropriate safety gear and exercise proper safety practices when working with or near chemicals

• General Cleaning – Soak the electrode for 5 minutes in a mixture of warm tap water (< 140° F), and mild detergent such as

liquid dish detergent. A soft brush, like a toothbrush may also be used to clean off particulates.

• Bioﬁ lm and bacterial growth – Soak the electrode in a diluted household laundry bleach solution (pH electrodes only), 1part bleach to 10 parts water for 10 minutes.

• Alkaline or Scale – Lime/calcium and mineral buildup deposits may be removed by soaking the electrode in a solution of 2% to 5% hydrochloric acid (HCl) or vinegar for no more than 5 minutes.

• Acidic contaminants – May be removed by soaking the electrode in a weak caustic (less than 2% to 5% NaOH) for a few minutes only. Use the least harsh chemical which will remove the contaminant within 2-5 minutes of soaking without attacking the materials of construction.

• Oily or organic coatings – Soak the probe for 5 to 10 minutes in a solution of warm tap water < 140° F, and dish detergent. Alternatively, use an appropriate solvent (isopropyl alcohol or similar) that will not attack the materials of construction. If required gently clean junction and/or glass with a very soft tooth brush, and follow up with brief soaking (2-5 minutes) in 2% to 5% NaOH (sodium hydroxide). In the case of pH (not ORP) a difﬁ cult organic fouling can be treated with household bleach (4-6%) as a substitute for the dish detergent.

• ORP Platinum Coating – Gently wipe the electrode surface with a soft lint-free paper towel. If the various forms of chemical cleaning are not sufﬁ cient to achieve an accurate measurement and response time, a last resort would be to polish the platinum surface with a 0.3-1.0 micron alumina polishing slurry to remove any stubborn coatings.

• After cleaning, rinse pH/ORP electrode in distilled or tap water, then re-examine the electrode for damage that may have been hidden from view. Sensor may not initially behave properly; and have a temporary offset due to the cleaning chemistry. Proper conditioning is always recommended.

Electrode Conditioning

Soak sensor tip (pH or ORP) in 3 mol/L KCl (potassium chloride), for at least 45 minutes to regenerate/condition. The more aggressive the cleaning, the longer the soak in potassium chloride. Failure to soak the electrode will cause the electrode to drift for a time after the cleaning procedure, and could adversely affect the calibration process/results.

If the cleaning and conditioning yield results within operational tolerance, the pH/ORP sensor is once again suitable for use. However, if the results do not bring the readings of the pH/ORP sensor within tolerance, it is time to replace the sensor.

463X Chlorine Systems Manual

Page 44

pH System Calibration

There are two functions in a pH electrode that require the system to be calibrated:

Temperature Calibration

The temperature output of the electrode (measured by a 3K Balco or Pt1000 RTD) must be calibrated only once. When a new electrode is installed, it does not need to be repeated.

Because the temperature measurement has a signiﬁ cant inﬂ uence on the electrochemical measurement, the temperature output in new pH electrodes should always be calibrated before the pH/mV calibration.

NOTE: All GF transmitters and controllers incorporate automatic temperature compensation.

pH error due to temperature changes in ﬂ uid

°C pH 2 pH 3 pH 4 pH 5 pH 6 pH 7 pH 8 pH 9 pH 10 pH 11 pH 12

0.15 0.12 0.09 **0.06 0.03 0 0.03 0.06 0.09 0.12 0.15

15 25 35 45

Table 1

As the pH value moves away from neutral (7 pH) or the temperature moves away from 25 ºC, the electrochemical output is affected.

• * Example: At pH 5 the mV output of the electrode is not affected if the temperature is at 25 °C.

• ** The electrode output will be shifted by 0.06 pH units if the temperature is reduced to 15 °C.

Offset and Slope Calibration

The pH electrode calibration is an important function that must be done routinely to standardize the electrode due to its ever-changing characteristics. The electrode contains a gel that depleates over time, so the instrument must be readjusted periodically to maintain system accuracy. There are many inﬂ uences, including aging, temperature, coatings and chemicals used that will affect the probe characteristics. After cleaning and conditioning, GF pH electrodes may be calibrated in two pH buffer solutions of different pH values (a two point calibration).

000* 0 0000000

0.15 0.12 0.09 0.06 0.03 0 0.03 0.06 0.09 0.12 0.15

0.3 0.24 0.18 0.12 0.06 0 0.06 0.12 0.18 0.24 0.3

0.45 0.36 0.27 0.18 0.09 0 0.09 0.18 0.27 0.36 0.45

The pH electrode is calibrated by placing it in a buffer solution of known pH and measuring the cell potential. This is a linear function of pH in the range of pH 2-11, therefore two calibration points are needed. Most common calibration buffers are pH 4.01 and pH 7.00 (@ 25 °C). If the pH measurements are made in an acid to neutral range, we recommend using buffer pH 4.01 and buffer pH 7.00 for calibration. If an alkaline sample is measured, we recommend using buffer 7.00 and buffer 10.01 for calibration.

The response of the glass electrode is characterized by two parameters, offset and slope. The theoretical output of a pH electrode at pH 7 is 0 mV. The offset, or zero pH is the deviation of the pH from the nominal value. In the GF transmitters, the offset calibration is performed under STANDARD.

The glass electrode slope is the mV developed per each pH unit (mV/pH). At 25 °C, the theoretical slope is 59.16 mV/pH. So, at pH 4.01, +177 mV will be generated, while at pH 10.01 (with a lower H+ concentration), a potential of -177 mV will be generated, (see Table 2). A new electrode however, will generate 0 15 mV in pH 7.00 and will have a slope efﬁ ciency between 93.2 and 103%. In the GF transmitters, manual slope calibration is performed under SLOPE.

Theoretical mV

Values @ 25 °C

pH mV

2 +295.8

3 +236.64

4 +177.48

5 +118.32

6 +59.16

8 –59.16

9 –118.32

10 –177.48

11 –236.64

12 –295.8

Table 2

463X Chlorine Systems Manual

Page 45

pH System Calibration continued

How to calculate a pH electrode slope efﬁ ciency

Two pH buffers are selected to check the pH probe performance, pH 4.01 and pH 7.00. The ratio of the measured potentials (E2-E1) to the difference of pH (7.00 – 4.01) gives the slope of the straight line.

1. Read the mV potential generated by the electrode in two calibration buffers

2. Determine the slope (the mV potential generated per pH unit)

3. Divide this number by the theoretical slope, 59.16 mV/pH @ 25 °C and multiply by 100.

Example 1

pH electrode generates -12 mV in pH 7.00 buffer and +162 mV in pH 4.01 buffer.

160 mV - (-12 mV) = 172 mV 172 mV/ 3 = 57.33 mV/pH unit

57.33/59.16 x 100 = 96.9 % slope efﬁ ciency

In Example 2, slope efﬁ ciency of 90.1% is acceptable but the offset of -45 mV is not. An offset shift can be the result of the reference electrode being contaminated or poisoned. A slope shift can be the result of the glass being etched or coated with a hard build-up.

As the electrode ages, the slope decreases gradually, generally a slope between 85% and 105% is acceptable. If the offset value (pH 7.00) is > +/- 45 mV, electrode should be replaced. When a great accuracy is required from the electrode, the offset and the slope values need to be as close as possible to the theoretical values.

Refer to the Calibration Procedure section of the instrument manual for a 2 point pH calibration. If the sensor is used in a 4 to 20 mA ‘blind application’ refer to the Calibration section of the 2751 Smart Sensor Electronics for a 2-point EasyCal pH calibration.

Example 2

pH electrode generates -45 mV in pH 7.00 buffer and +115 mV in pH 4.01 buffer.

115 mV - (-45 mV) = 160 mV 160 mV/3 = 53.33 mV/pH unit

53.33/59.16 x 100 = 90.1%

Buffer Solutions

Proper handling, storage and use of buffers is very important on the pH measurement accuracy. If the buffers are contaminated or used improperly, the calibration will be inaccurate and all subsequent measurements will be wrong.

• When calibrating pH electrodes, always use pH buffers in the range of your sample.

• To achieve an accurate calibration make sure the electrode and the buffer are at the same temperature.

• Buffers have limited shelf life. Do not use a buffer if the expiration date has passed.

• Never return used buffers to the buffer bottle. Discard it.

• Do not leave the buffer bottle open (exposed to air). The atmospheric carbon dioxide lowers the pH of the alkaline buffers (10.01 pH).

• To avoid contamination, rinse the electrode with distilled or tap water before placing it in the buffer. If necessary, the electrode might be blotted dry using a lint-free paper towel (e.g. Kimwipes) to remove excess water. Be extra careful not to touch or rub the surface of the glass. The wiping of the glass can produce a static charge that will interfere with the voltage reading of the electrode. In addition to this, the hydration gel layer is interrupted.

• Store buffers at room temperature.

• GF offers the following pH buffer solutions, pH 4.01, pH 7.00 and pH 10.01.

• Make fresh buffer solutions just before using.

• Dispose of all calibration solutions in accordance with local guidelines and regulations.

Electrode Storage

Proper electrode storage maximizes electrode performance and extends electrode life.

Prior to storage - add 3 mol/L KCl to the electrode storage cap (about half full), and carefully secure the cap onto the electrode tip.

• Store boxed electrodes wet, ﬂ at or upright (electrode tip down) to maximize hydration of the glass surface.

• Store electrodes in stable temperature environment, avoiding freezing conditions (below 0 °C (<33° F) and heat above 100° F).

• Never store the electrode in deionized (DI) water. Use 3 mol/L KCl solution to keep the glass wet when out of the process.

Short term storage (up to 24 hours) - soak the electrode tip in either pH 4.01 buffer or 3 mol/L KCl solution.

• Drying out of the pH sensitive glass and the junction must be avoided (or damage to the electrode will occur).

• Prior to electrode installation, make sure there’s a light ﬁ lm of synthetic grease (such as silicone-free grease) applied to the upper electrode O-ring. If the electrode will be installed into a GF Installation Fitting, then also apply a thin ﬁ lm of synthetic grease to the lower O-ring.

• Do not lubricate the bottom O-ring of the electrode if using the 4630 ﬂ ow cell, see page 12.

Long term storage (longer than 24 hrs) - add 3 mol/L KCl solution to the storage cap (about half full) and carefully secure the cap onto the electrode tip. This will ensure probes are always ready to use.

463X Chlorine Systems Manual

Page 46

463X Chlorine Analyzer Flow Cell

Maintenance

Sensor Removal

CAUTION: Over time, a sensor can get tight in the ﬂ ow cell ﬁ tting. When removing the sensor, avoid

hitting the sensor electronics on the bottom of the wiring enclosure if the sensor suddenly releases.

Take care not to damage the components.

While holding the ﬂ ow cell, grasp the yellow electronics housing as a whole unit and carefully pull upwards, gently rocking back and forth if necessary. Once the sensor is loose, disengage the electronics, then remove the sensor.

TIP: A tool can be used to carefully pry the sensor electronics up and out if it is difﬁ cult to remove.

Under certain conditions, a dirty ﬂ ow cell and ﬁ lter can create a chlorine demand which could lower the chlorine concentration in the water ﬂ owing past the chlorine sensor. It is recommended to clean the ﬁ lter and ﬂ ow cell on a regular basis. The frequency of necessary cleaning will depend on the application in which the system is being used and the level of accuracy required.

Cleaning

Service the ﬂ ow cell on a clean, dirt free surface to avoid scratches or damage to the ﬂ ow cell.

Figure 1

Step 1. Keep the system powered on. Step 2. Disable the relays and any output loops. Step 3. Turn off the water ﬂ ow. Step 4. Remove the sensors from the ﬂ ow cell. NOTE: It is not

necessary to remove the electronics from the sensor.

Step 5. Install the vinyl caps on to the sensor tips or place the tips of

the removed sensors in a cup of sample water for temporary storage while cleaning the ﬂ ow cell.

Keep the sensor tips wet and the sensors energized.

Step 6. Remove the ﬂ ow cell from the panel by removing the

knurled nuts (Figure 1).

Step 7. Remove the remaining hardware from the ﬂ ow cell.

(Figure 2).

NOTE: It is recommended that an anti-seizing compound appropriate for the application be used during the reassembling of the ﬂ ow cell.

• Wash the surfaces with plain or soapy water only.

• Use gentle, liquid dishwashing soap if necessary.

• DO NOT USE commercial glass cleaning ﬂ uids.

• Use a soft, lint-free cloth.

Servicing the Flow Regulator and Filter

Figure 2

Remove ﬁ lter screen to clean. If the ﬁ lter is not

desired, it may

be removed from

the system.

WARNING: Do not disassemble the ﬂ ow regulator. There are no user serviceable parts inside.

If your inlet pressure is less than 1 bar (15 psi), remove the ﬂ ow regulator and quick disconnect inlet connector.

463X Chlorine Systems Manual

Flow Regulator

Page 47

O-ring Installation

CAUTION! The 3-4630.390 (159 001 688) O-ring kit

comes complete with two O-rings (5 and 6) and a single cord of material that must be cut and ﬁ tted into the O-ring groove of the ﬂ ow cell (1 and 4).

• The sealing of the ﬂ ow cell is accomplished by four cut O-ring segments and two round O-rings sealing the ﬂ ow regulator. Refer to the illustration below for special O-ring ﬁ tting instructions. Butt all O-ring joints together so there is no gap.

• Remove the O-rings during ﬂ ow cell disassembly. Both the O-rings and all sealing grooves should be examined for cleanliness.

• Wipe all surfaces carefully with a soft, lint-free cloth to ensure good sealing.

• The cross section of the O-rings should be round and smooth. If they are ﬂ attened, their ability to seal is reduced.

• Do not use liquid or paste sealant.

Do not scratch the sealing surfaces of the ﬂ ow cell block. Scratches to the sealing surfaces can cause irreparable leaks.

Fit all O-ring joints so there is no gap in ﬁ nal assembly.

Butt ends together

Individual O-rings shown. Butt all segment joints together in ﬁ nal assembly.

New O-ring

cross section

Old ﬂ attened O-ring

cross section

(Replace)

Angle cut O-ring

Fit flush with no gap

Straight cut

Fit flush with no gap

Straight cut

Angle cut O-ring

Fit flush with no gap

463X Chlorine Systems Manual

Page 48

Flow Cell Assembly

WARNING! Do not over tighten ﬂ ow cell bolts. Maximum torque is 8.1 Nm (72 Lb-In). Over tightening the bolts can damage the ﬂ ow cell. Do not over-tighten the bolts in an attempt to stop a leak.

Install the assembled pressure

regulator and the two round O-rings into the ﬂ ow cell.

Install the four O-ring segments.

Insert the center bolt into the block.

Tighten bolts in 3 passes

Torque

8.1 Nm

(72 Lb-In)

MAX!

Install the nut and washers.

Tighten the nut just enough to hold

the block together and keep the O-rings in place.

Install the remaining bolts, washers

and nuts.

Align and place the back block onto

the ﬂ ow cell. Check to be sure that the O-rings are seated correctly.

463X Chlorine Systems Manual

Tighten the bolts in three passes to

speciﬁ cation.

Install the ﬂ ow cell on the panel.

Screw on the thumb nuts ﬁ nger tight.

DO NOT use tools on the thumb nuts.

NOTE: It is recommended that an anti-seizing compound appropriate for

the application be used during the reassembling of the ﬂ ow cell.

Page 49

Troubleshooting

463X Chlorine Analyzer

The troubleshooting table below outlines possible causes and remedies related to the ﬂ ow cell panel system. Refer to the respective transmitter and sensor manuals for speciﬁ c component troubleshooting.

Problem Possible Cause Remedies

Inlet pressure below 1 bar (15 psi)

No water ﬂ ow

Low water ﬂ ow

Excessive ﬂ ow

Flow cell leaks

Leaks around sensor

Water leaks out of top vent hole

Algae growth in ﬂ ow cell

Excessive small bubbles in ﬂ ow cell accumulating on sensors

Transmitter does not turn on

Chlorine reading too high Breached membrane Replace membrane and ﬁ ll solution

Chlorine reading too low

Sensor output drifts

Damaged ﬂ ow regulator Replace ﬂ ow regulator

Clogged ﬁ lter

Clogged ﬂ ow switch Clean or change ﬂ ow switch

Clogged ﬁ lter Clean ﬁ lter

Insufﬁ cient inlet pressure

Damaged ﬂ ow regulator Inspect or replace

Clogged ﬂ ow switch Clean or change ﬂ ow switch

Excessive pressure over 8 bar (120 psi) Ensure inlet pressure does not exceed 8 bar (120 psi)

Damaged ﬂ ow regulator Replace ﬂ ow regulator

Incorrect assembly Inspect, clean, and reassemble

Loose bolts Tighten bolts (8.1 Nm, 72 Lb-In Max)

Defective or missing O-rings Replace O-rings

Damaged sealing surfaces Replace ﬂ ow cell

Damaged sensor O-ring Inspect or replace O-ring

Damaged ﬂ ow cell Inspect ﬂ ow cell

Drain valve closed or plugged Inspect

Hose connections are backwards Connect water source correctly

Outlet drain not below ﬂ ow cell Route drain line below ﬂ ow cell and vented to atmosphere

Low chlorine concentration in water

Exposure to light

Water source contains bubbles

Water source is saturated with dissolved gasses

No power or external circuit breaker is switched off

Loose or incorrect wire connections Check connections

Electrode needs to be repolished Polish gold-plated electrode

Not enough electrolyte Check electrolyte level

Low ﬂ ow rate Check source pressure

Filter clogged Clean the ﬁ lter

Sensor conditioning not long enough

Electrode needs to be repolished Polish gold-plated electrode

Not enough electrolyte Check electrolyte level

Variable ﬂ ow rate Check ﬂ ow rate

Clogged ﬁ lter Clean the ﬁ lter

Contaminated ﬁ ll solution Change electrolyte ﬁ ll solution

Check source pressure. Remove regulator if pressure is < 1 bar/15 psi

Clean ﬁ lter or remove pressure regulator if inlet pressure is below 1 bar (15 psi)

Increase inlet pressure to speciﬁ cation or remove ﬂ ow regulator

Locate ﬂ ow cell away from light

Check water source

Inspect power and wiring connections

Allow the sensor to condition for 4 hours (See 2630 or 2632 sensor manual for details)

Chlorine Electrode Troubleshooting (see 2630-2 or 2632-1 electrode manual: 3-2630.090)

Transmitter Troubleshooting (see 9950-3 manual: 3-9950-XP.090)

pH Electrode Troubleshooting (see 2724 manual: 3-2724.090)

463X Chlorine Systems Manual

Page 50

Troubleshooting

9950-3 Chlorine Controller

Several factors can cause irregular or incorrect readings. The ﬁ rst thing to check is to verify that the controller and sensors have been installed correctly. The list below outlines possible causes and remedies.

Problem Possible Cause Remedies

Incorrect wiring.

Transmitter does not turn on.

Display screen is too dark or too dim.

LCD backlight does not work. Contrast set to low Adjust contrast in Options Menu.

No or low voltage supplied to transmitter. Blown fuse. Bad wire connections or splices.

Contrast set incorrectly or ambient temperature is too high.

Check wiring, power supply and wiring connections.

Adjust contrast in Options Menu.

Incorrect temperature reading.

Display or Current output is erratic.

Output is not zero when electrode is placed in non-chlorinated water.

4 to 20 mA output is incorrect.

Chlorine Sensor Troubleshooting (see 2630 sensor manual)

Incorrect readings

Faulty chlorine sensor. Bad sensor connection.

Electrical noise interfering with the measurement. Sensor malfunction.

Electrode not properly conditioned. Noise interfering with the measurement. Calibration incorrect.

4 to 20 mA is not scaled same as Loop device. Loop device is not scaled same as sensor.

Sensor conditioning time too short. Run for 4 hours before calibrating.

Membrane cap damaged or contaminated. Clean or replace cap.

Interference from water contaminants. See Speciﬁ cations data.

Low ﬂ ow rate. Check ﬂ ow.

Air bubbles on membrane.

pH outside working range (See Speciﬁ cations data).

Low or no electrolyte in sensor. Fill sensor with electrolyte.

Membrane cap loose. Inspect/tighten (do not use tools).

Only combined chlorine present when measuring free chlorine.

Sensor not making good contact with electronics.

Defective sensor. Replace.

No pH compensation being used.

Cl sensor not calibrated. Calibrate Cl sensor.

Check connections or replace sensor.

Ensure system is properly grounded. See Sensor Troubleshooting.

Condition new sensor for 4 hours. Cap replacement or electrolyte reﬁ ll: 2 hours. Properly ground system. Replace sensor.

Re-span loop device to match sensor.

Install ﬂ ow cell vertically with upwards ﬂ ow.

Check pH.

Validate with DPD test.

Inspect and reconnect.

Manually enter pH value in Input Menu or calibrate pH sensor.

463X Chlorine Systems Manual

Page 51

9950-3 Error Messages

The 9950-3 error warnings are self-explanatory. An error message can appear under the following circumstances:

• User input value is out of range

• Poor electrical connection

• Sensor is not connected or detected

Error Messages Problem Possible Cause Remedies

Calibration Due

Out of Range Electrode is exceeding range.

Error too Large pH Calibration issue.

No pH Value pH value not appearing.

Check Preamp

No Probe

Calibration of the electrode is required.

Chlorine or pH electronics not detected.

Flashing over Channel.

Prode not detected in electronics.

• Temperature error

• Incorrect sensor type chosen in the Options Menu

• Two calibration points are too close together when calibrating pH or chlorine.

New electrode. Calibrate the electrode.

Next calibration reminder. See Calibration Menu.

Temperature of the sample is > 45 °C (113 °F).

pH is outside proper level of

5.5 to 8.2.

pH electrode at the end of life.

Dirty pH electrode. Clean and recalibrate electrode.

pH electrode in manual mode.

pH electrode faulty.

Electronics not plugged into the proper channel.

Wiring incorrect in connector. Cycle power Off and On.

Damaged Preamp electronics.

Chlorine and pH electronics are not inserted into correct channel.

Chlorine or pH electrode missing.

Damaged electrode. Replace the electrode.

Verify range of the application.

Replace faulty electrode. Calibrate the electrode.

Replace the electrode.

See Input Menu.

Check connection to pH electrode.

Check Chlorine Controller and electronics wiring.

Replace the electronics.

Verify Channel 1 and Channel 2 have the correct electronics.

Remove and reset the electrodes in proper electronics.

NOTE: If the type of chlorine sensor is changed, i.e. Free Chlorine or Chlorine Dioxide, the measurement type on the Input Menu should be changed.

463X Chlorine Systems Manual

Page 52

Troubleshooting

2630 Free Chlorine Electrode 2632 Chlorine Dioxide Electrode

Transmitter error messages related to calibration are detailed in the 9950-3 operation manual.

Problem Possible Causes Remedies

Condition for 4 hours minimum prior to initial calibration

DPD value must be greater than 0.2 ppm to calibrate

Inspect visually. Tap to remove bubbles. Mount at an angle

Condition for 4 hours minimum prior to initial calibration

Check for chloramine with appropriate DPD test

Inspect and reconnect

Inspect visually. Tap to remove bubbles. Mount at an angle

Replace membrane. Condition sensor for at least 2 hours and recalibrate.

Inspect and reconnect

Check 3-2650 Electronics connection to electrode (see 3-2650 manual for instructions). Make sure connections are dry. Check instrument hookup

Sensor cannot be calibrated. Output is lower than DPD test.

Sensor output very low

Unstable output from sensor

Sensor conditioning time too short

Chlorine content too low

Low ﬂ ow rate Check to make sure ﬂ ow rate is sufﬁ cient

Air bubbles on electrode membrane

Low or no electrolyte in electrode Fill electrode with electrolyte

Organic chlorination agents present in water See Speciﬁ cations 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 Speciﬁ cations data

Electrode needs to be repolished Polish gold-plated electrode

Not enough electrolyte Check electrolyte level

Sensor conditioning time too short

Chlorine content too low Add chlorine to validate

Only bound chlorine present. No free chlorine

Electrode not making good contact with electronics

Electrode needs to be repolished Polish gold-plated electrode

Not enough electrolyte Check electrolyte level

Air bubbles on electrode membrane

Membrane damaged

Electrode not making good contact with electronics

Non-sensor problem

Troubleshooting - 2751-7 pH Electronics

Problem Possible Cause Remedies

After completing calibration procedure, the output values are inaccurate.

Transmitter Troubleshooting (see 9950-3 manual: 3-9950-XP.090)

pH Electrode Troubleshooting (see 2724 manual: 3-2724.090)

463X Chlorine Systems Manual

Insufﬁ cient time allowed for electrode stabilization during calibration.

Recalibrate, verify that test solutions are at room temperature and wait at least 30 seconds after placing electrode in solution.

Page 53

Speciﬁ cations

9950-3 Chlorine Controller

General

Compatibility:

• Sensors: 3-2630-1 Free Chlorine Sensor 0.02 to 2 ppm 3-2630-2 Free Chlorine Sensor 0.05 to 5 ppm 3-2630-3 Free Chlorine Sensor 0.01 to 20 ppm 3-2632-1 ClO 3-2724-00 Flat pH Electrode,

See FCL and ClO2 system pH speciﬁ cation

• Electronics: 3-2650-7 Amperometric Electronics 3-2751-7 pH Sensor Electronics

Materials:

• Case: PBT

• Panel gasket: Silicone rubber

• Window: Shatter-resistant glass

• Keypad: Silicone rubber

• Display: Backlit alphanumeric dot matrix LCD Update rate: 1 second Contrast: User selected, 5 levels

Electrode, 0.02-2 ppm

Performance

System Operational Ranges/Limits:

• 3-2630-1: Free Cl: 0.02 to 2 ppm, pH: 5 to 8.5

• 3-2630-2: Free Cl: 0.05 to 5 ppm, pH: 5 to 8.5

• 3-2630-3: Free Cl: 0.1 to 20 ppm, pH: 5 to 8.5

• 3-2632-1: ClO2: 0.2 to 2 ppm, pH: 4 to 11

• 3-2724-00: pH: 0 to 14 (8.5 when used with the 4630) Cl Temp. Range: 0 °C to 45 °C (32 °F to 113 °F)

Max. Cable Length:

• Digital (S3L): 30 m (100 ft) maximum

Electrical

Input Power: 12 to 24 VDC ±10% regulated,

250 mA max current

Sensor Power: 5 VDC ±1% @ 25 ºC, regulated

(provided by 9950-3)

Input Speciﬁ cations

• One Digital (S3L) input from Free Chlorine or Chlorine Dioxide electrode

• One Digital (S

L) input from pH electrode

Output Speciﬁ cations:

• Current Loop (4 loops provided)

• 4 to 20 mA, isolated, adjustable span, reversible with minimum and maximum endpoint adjustment.

• Chlorine, Temperature and pH

• Update Rate: 300 ms

• Max Loop impedance: 50  max. @ 12 V 325  max. @ 18 V 600  max. @ 24 V

Relay Module:

• 2 mechanical SPDT contacts with adjustable hysteresis and programmable High, Low, Off or Proportional and 4 binary inputs

• May be disabled if not used

• Max. voltage rating: 5 A @ 30 VDC 5 A @ 250 VAC, resistive load

• Time delay: Programmable from 0 to 99999 s

Environmental Requirements

• Operating Temperature: -25 °C to 120 °C (-13 °F to 248 °F) (transmitter only)

• Storage Temperature: -15 °C to 80 °C (5 °F to 176 °F)

• Relative Humidity: 0 to 95%, non-condensing

• Maximum Altitude: 4000 m (13,123 ft)

• Enclosure: NEMA 4X

Standards and Approvals

• CE, UL, CUL, WEEE

• RoHS Compliant

• Manufactured under ISO 9001, ISO 14001 and ISO 45001

China RoHS (Go to www.gfps.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.

463X Chlorine Systems Manual

Page 54

Speciﬁ cations

2650 DryLoc Amperometric Electronics 2751-7 pH Electronics

General

Compatibility:

• Sensors: All GF Amperometric DryLoc Sensors

• Instruments: GF 9950-3 Chlorine Controller

Mounting: Materials: PBT Cable: 4.6 m (15 ft) 3 conductor shielded, 22 AWG

• Max. Length: 30 m (100 ft)

DryLoc connection

Performance

• Accuracy < 5 nA or 1% of reading, whichever is greater @ 25 °C over full input range

• Temperature: ± 1.0 °C (PT1000) over full operation range (when calibrated at ambient temperature)

• Update Rate: 500 ms

• Range: ± 450 nA

• Resolution: 0.1 nA

Electrical

Input Speciﬁ cations:

• Sensor: Raw signal

• Temperature: PT1000 RTD

Output Speciﬁ cations:

• Digital (S3L): Serial ASCII, TTL level 9600 bps

General

Compatibility:

• Electrode: GF 2724-00 Flat pH Electrode

• Instrument: GF 9950-3 Chlorine Controller

Mounting: DryLoc connection Materials: PBT Cable: 4.6 m (15 ft) 3 conductor shielded, 22 AWG

Performance

• Accuracy: ± 0.03 pH @ 25 °C

• Resolution: 0.02 pH

• Response Time (includes electrode response): < 6 s for 95% of change

• Range: 0.00 to 14.00 pH (8.2 when used with the 4630)

• Resolution: 0.02 pH

Electrical

Input Speciﬁ cations:

• Input Impedance: >1011 

• Temperature Drift: ± 0.002 pH per ºC

• Input Resolution: 0.02 pH, 0.3 ºC

Output Speciﬁ cations:

• Digital (S3L): Serial ASCII, TTL level 9600 bps

Power Supply Input:

• Digital (S3L): 5 to 6.5 V ± 10%, 3 mA max (from the 9950-3)

Environmental

• Storage Temp.: -20 °C to 50 °C (-4 °F to 120 °F)

• Operating Temp.: 0 °C to 85 °C (32 °F to 185 °F) (electronics only)

• Relative Humidity: 0 to 95%, non-condensing (no electrode connected)

• Enclosure: NEMA 4X/IP65 with electrode installed

• Shipping Weight: 0.64 kg (1.41 lb)

Standards and Approvals

• CE, WEEE

• RoHS Compliant

• Manufactured under ISO 9001, ISO 14001 and ISO 45001

China RoHS (Go to www.gfps.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.

Power Supply Input:

• Digital (S3L): 5 to 6.5 V ± 10%, 3 mA max (from the 9950-3)

Environmental

• Storage Temp.: -20 °C to 50 °C (-4 °F to 120 °F)

• Operating Temp. (Electronics Only):

0 °C to 85 °C (32 °F to 185 °F)

• Relative Humidity: 0 to 95%, non-condensing

• Enclosure: NEMA 4X/IP65 with electrode installed

• Shipping Weight: 0.64 kg (1.41 lb)

Standards and Approvals

• CE, WEEE

• RoHS Compliant

• Manufactured under ISO 9001, ISO 14001 and ISO 45001

China RoHS (Go to www.gfps.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.

463X Chlorine Systems Manual

Page 55

Speciﬁ cations

2630-X Amperometric Free Chlorine Electrode 2632 Amperometric Chlorine Dioxide Electrode

General

Compatibility

Flow Cells ............................. GF 3-4630.392

Electronics ............................GF 3-2650-7

Mounting .................................. GF DryLoc connection

Materials

Housing ................................CPVC

Membrane

Free Chlorine .................... PTFE

Chlorine Dioxide ...............PTFE

O-ring ...................................FKM

Electrode ..............................Gold-plated (working)

Silver halide (counter-reference)

Wetted Materials ...................... PVC, PTFE, FKM, Nylon,

Silicone

Performance

Electrode

Repeatability ........................ ± 0.08 ppm (mg/L) or 3% of

selected range whichever is less Slope

Free Chlorine ....................... 15 to 85 nA/ppm (mg/L) @ 25 ºC

Chlorine Dioxide ..................40 to 200 nA/ppm (mg/L) @ 17 ºC

Response time, T90 ............< 2 minutes

Sensor Conditioning 4 hours max. before calibration (new/ﬁ rst time start) 2 hours max. (subsequent start-ups)

System (including electronics and instrument)

Accuracy ..............................< ±3% of electrode signal after

calibration

Resolution ............................ 0.5% of electrode range

Temp. Element ..................... PT1000, Class B with

measurement range of -50 ºC to

150 ºC (-58 ºF to 302 ºF)

(measurement only, not operating

speciﬁ cation)

Operational Ranges and Limits

Free Chlorine ....................... 3-2630-1: 0.02 to 2 ppm (mg/L)

3-2630-2: 0.05 to 5 ppm (mg/L)

3-2630-3: 0.1 to 20 ppm (mg/L)

Free Chlorine pH .................5.5 to 8.2 pH

Chlorine Dioxide .................. 3-2632-1: 0.02 to 2 ppm (mg/L)

Chlorine Dioxide pH ............. 4.0 to 11.0 pH

Temperature .............................0 °C to 45 °C (32 °F to 113 °F)

Maximum Pressure

Membrane ............................0.48 bar @ 25 °C (7 psi @ 77 °F)

Flow Velocity Across Membrane Surface:

Minimum ..............................15 cm/s (0.49 ft/s)

Maximum .............................30 cm/s (0.98 ft/s)

Cross Sensitivity

Free Chlorine ....................... ClO

Chlorine Dioxide ..................FCl, ozone

Chemical Compatibility ............ < 50% ethanol/water < 50%

Environmental

Temperature

Operating .............................0 ºC to 45 ºC (32 ºF to 113 ºF)

Storage (dry) ........................-10 ºC to 60 ºC (-4 ºF to 140 ºF)

Relative Humidity .....................0 to 95% indoor/outdoor non-

Shipping Weight.......................0.14 kg (0.30 lb)

Standards and Approvals

• CE, WEEE

• RoHS Compliant

• Manufactured under ISO 9001, ISO 14001 and ISO 45001 China RoHS (Go to www.gfps.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.

, ozone, bromine

glycerol/water

condensing to rated ambient

463X Chlorine Systems Manual

Page 56

Speciﬁ cations

2724 DryLoc pH Electrode

General

Compatibility: ..................... GF 2751-7 pH/ORP Sensor

electronics

Process Connection ........... ¾ in. NPT or ISO 7/1 R¾ threads

Wetted Materials ................ PPS, glass, UHMWPE, FKM

Performance

Efﬁ ciency ........................ >97% @ 25 °C (77 °F)

Range ............................. Free Chlorine 5.5 to 8.2 pH

Environmental

Pressure

Operating ........................ -10 ºC to 65 °C (14 °F to 149°F),

Temperature

Storage ........................... 0 °C to 50 °C (32 °F to 120 °F).

or GF ﬂ ow ﬁ ttings

Efﬁ ciency indicates the "wellness" of a new electrode. Efﬁ ciency is measured by comparing the actual slope (mV/pH) at 25 °C to the theoretical output of 59.16 mV/pH. An efﬁ ciency of 97% to 100% is equivalent to a slope of 57.39 to 59.16 mV/pH.

Chlorine dioxide 4.0 to 11 pH

0 to 6.9 bar (0 to 100 psi) 65 °C to 85 °C (149 °F to 185°F), Linearity derated 6.9 to 4.0 bar (100 to 58 psi)

CAUTION: The electrode glass will be shattered if shipped or stored at temperatures below 0 °C (32 °F). The performance life of the electrode will be shortened if stored at temperatures above 50 °C (120 °F).

Operating ........................ -10 ºC to 85 ºC (14 ºF to 185 ºF)

Rel. Humidity ...................... 0 to 95% indoor/outdoor non-

Shipping Weight ................. 0.25 kg (0.55 lb)

Standards and Approvals

• CE, WEEE

• RoHS Compliant

• Manufactured under ISO 9001, ISO 14001 and ISO 45001 China RoHS (Go to www.gfps.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.

463X Chlorine Systems Manual

condensing to rated ambient

Page 57

Notes

463X Chlorine Systems Manual

Page 58

Ordering Information

463X Chlorine Analyzer

Mfr. Part No. Code Description

3-4630-13 159 001 949 Chlorine panel, free chlorine sensor (0.02 to 2 ppm) w/ sensor electronics, pH sensor w/ electronics

3-4630-23 159 001 950 Chlorine panel, free chlorine sensor (0.05 to 5 ppm) w/ sensor electronics, pH sensor w/ electronics

3-4630-33 159 001 951 Chlorine panel, free chlorine sensor (0.01 to 20 ppm) w/ sensor electronics, pH sensor w/ electronics

3-4632-12 159 001 952 Chlorine panel, chlorine dioxide sensor (0.02 to 2 ppm), with sensor electronics, no pH sensor

3-4632-13 159 001 958

Accessories and Replacement Parts

3-9950-3 159 001 954 Chlorine Controller

3-9950-5 159 001 956 Chlorine Monitor, no Relay or Output modules

3-2630-1 159 001 746 Free Chlorine electrode, 0.02 to 2 ppm (mg/L)

3-2630-2 159 001 662 Free Chlorine electrode, 0.05 to 5 ppm (mg/L)

3-2630-3 159 001 747 Free Chlorine electrode, 0.01 to 20 ppm (mg/L)

3-2632-1 159 001 767 Chlorine Dioxide electrode, 0.02 to 2 ppm (mg/L)

3-2724-00 159 001 545 pH electrode, Flat Glass, Pt1000 Temp Element, ¾ in. MNPT

3-2751-7 159 001 957 pH - Inline Electronics, Digital (S

3-2650-7 159 001 670 Chlorine - In-line Amperometric Electronics, digital (S3L), 4.6 m (15 ft) cable

3-4630.390 159 001 688 Rebuild kit, O-rings, boots, screws, 1 ﬁ lter screen

3-4630.391 159 001 689 Pressure regulator with 1 spare ﬁ lter screen

3-4630.392 159 001 690 Acrylic ﬂ ow cell complete with all components and connections

3-4630.393 159 310 162 Flow Switch Kit, PP

7300-0024 159 001 693 24 VDC Power Supply

3-2630.391 159 001 674 Electrolyte Kit, 30 ml bottle with syringe and needle

3-2632.391 159 310 160 Chlorine Dioxide electrolyte, 30 mL (2)

3-2630.394 159 310 164

3-2630.398 159 310 166 Free Chlorine Sensor maintenance kit - (2) electrolyte, (2) PTFE membranes, (2) Silicone Bands, and

3-2632.398 159 310 165 Chlorine Dioxide maintenance kit - (2) electrolyte, (2) PTFE membranes, (2) Silicone Bands, and

1220-0021 159 801 182 O-ring FKM

3-0700.390 198 864 403 pH Buffer Kit (1 each 4, 7, 10 pH buffer in powder form, makes 50 mL of each)

3822-7004 159 001 581 pH 4.01 buffer solution, 1 pint (473 mL) bottle

3822-7007 159 001 582 pH 7.00 buffer solution, 1 pint (473 mL) bottle

3822-7010 159 001 583 pH 10.00 buffer solution, 1 pint (473 mL) bottle

3-2700.395 159 001 605 Calibration kit: included 3 polypropylene cups, box used as cup stand, 1 pint pH 4.01, 1 pint pH 7.00

3-2759 159 000 762 pH/ORP System Tester (adapter cable sold separately)

3-2759.391 159 000 764 2759 DryLoc Adapter Cable (for use with 2751-7)

3800-5000 159 838 107

3-2700.397 159 001 870

3-2700.398 159 001 886

Chlorine panel, chlorine dioxide sensor (0.02 to 2 ppm), with sensor electronics, pH sensor w/ electronics

L), 4.6 m (15 ft) cable

Free Chlorine and Chlorine Dioxide Replacement PTFE membrane (1)

Polishing Paper

3.0M KCl Storage Solution for pH and ORP, 1 pint (473 ml) bottle

Protective Cap for pH/ORP electrodes, 5 pieces

Lubricant Kit

Georg Fischer Signet LLC, 3401 Aero Jet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. (626) 571-2770 • Fax (626) 573-2057 For Worldwide Sales and Service, visit our website: www.gfps.com • Or call (in the U.S.): (800) 854-4090 For the most up-to-date information, please refer to our website at www.gfps.com

+GF+ 4630 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual