Georg Fischer 8630 Operating Manual

Signet 8630-3 Chlorine Transmitter

Shut-off Valve

Feed Water

Flow Direction

Strainer (optional)

Flow Meter

Flow Regulator

Discharge

Signet pH Sensor

Signet Chlorine Sensor

Overflow and Vent

Sampling Port and Drain Valve

English

3-8630.090-3 Rev. D 08/10 English

CAUTION!

• Remove power to unit before wiring input or output connections.

• Follow instructions carefully to avoid personal injury or damage
to the transmitter.

1 Description p.1 9 The View Menu p.5 15 Chlorine Calibration p.13

2 System Overview p.1 10 Editing Procedure p.5 15.3 In Process Calibration p.14

3 Start-up Procedure p.2 10.1 Example: Calibrate p.6 16 Output Settings p.14

4 Transmitter Installation p.2 11 Calibrate Menu Denitions p.7 16.1 Current Loop Settings p.14

5 Wiring p.3 12 Options Menu Denitions p.9 16.2 Relay Functions p.15

6 Terminal Identication p.3 13 pH Calibration p.11 17 Troubleshooting p.17

7 Sensor Connections p.4 13.3 Manual pH Compensation p.12 18 Ordering p.19

8 Power and Loop Connections p.4 14 Cl Sensor Conditioning p.12 19 Specications p.20

1. Description

The Signet 8630 ProcessPro® Chlorine Transmitter displays and transmits free chlorine along with pH information when connected
to Signet Amperometric Chlorine Sensors and a Signet pH Sensor.

Features of the 8630 include:

• Displays a wide range of free chlorine concentration inputs from 0 to 5 ppm.

• Displays the full range of the chlorine sensors offered.

• Automatic pH and temperature compensation or manual pH input to calculate accurate chlorine measurements.

• Simple setup and easy customization with the 4 button keypad.

• Dual 4 to 20 mA outputs with two built-in SPDT mechanical relays.

• Easy viewing via the bright backlit LCD display.

2. System Overview

If you have a Signet 463X integrated chlorine panel system, skip to
Section 3. If you have individual components to build your chlorine
system, refer to the diagram to the right for a basic plumbing reference.
View the diagram in relation to gravity with the Sampling Port being
physically lower than the sensors and the Overow being higher than
everything else.

The Discharge and Overow must be a gravity feed. The only head
pressure the chlorine sensor should be subjected to is the water column
to the discharge.

Once the plumbing has been constructed and tested for integrity and
a suitable location for the transmitter found, follow the steps outlined in
Section 3 (New System Start-up Procedure) to get your chlorine system
up and running.

The start-up procedure is identical for integrated panel systems as well.

Basic Plumbing Layout

3. New System Start-up Procedure

Your new Signet Chlorine System needs to be calibrated and the chlorine sensor needs to be conditioned prior to use. The following
steps outline the recommended procedure to start up a new system.

Transmitter Installation (Section 4)1.
Wiring (Section 5)2.
Calibrating pH (Section 13)3.
Chlorine Sensor Selection and Conditioning (Section 14)4.
Calibrating Chlorine (Section 15)5.
Conguring Output Settings6. (Section 16)

Note this icon in the manual for
New System Start-up Procedures.

4. Transmitter Installation

System Start-up: Step 1

Prepare the transmitter installation location. If the back of the transmitter is difcult to access when installed, wire it rst, then

install it completely.
Next step: Wiring (see section 5).

The 8630 panel mount transmitter is designed for installation •
using a ¼ DIN Punch.
The panel opening is 92 mm x 92 mm (3.6 in. x 3.6 in.). •
¼ DIN punches are available and recommended for creating •
clean, precise openings quickly and easily in most transmitter
panels.
If a punch is not available, a jigsaw or other cutting tool can be •
used. An adhesive template is provided to help guide the cutting
process. De-burr and smooth the opening with a le.
The recommended minimum clearance on all sides between •
transmitters and panel edges is 25 mm (1 in.).

Panel Installation

Slide the transmitter into the cutout from the front of the 1.
panel with the gasket seated against the ange.
Slide the mounting bracket over the back of transmitter 2.
until the quick-clips snap into the grooves on the side

of transmitter.

To remove, secure the transmitter temporarily with tape from the front
or grip from the rear of the transmitter.
Press the quick-clips outward and remove.

Panel installation

Quick
clip

Mounting

bracket

2 8630-3 Chlorine Transmitter

2

1

2

1

2

1

2

1

2

1

2

1

5. Wiring

Loop 2 -

Loop 2

+

System Power
Loop 1

-

System Power
Loop 1

+

AUX
Power

-

AUX
Power

+

Relay 2

(N.O.)

Relay 2

(COM)

Relay 2

(N.C.)

Relay 1

(N.O.)

Relay 1

(COM)

Relay 1

(N.C.)

Ground

Digital

(S3L)

V+

Ground

Digital

(S3L)

V+

System Start-up: Step 2

Wire the transmitter for all connections with the power off. Keep any 4 to 20 mA
and relay actuated output devices that are connected to it ofine at this time.

Next step: Calibrating pH (see section 13).

Wiring Procedure

1. Remove 13 to 16 mm (0.5 to 0.625 in.) of insulation from the

end of the wire to be connected to the transmitter.

2. Press the orange terminal lever all the way down with a
small screwdriver to open terminal jaws.

3. Insert wire into terminal until it bottoms out.

4. Release the orange terminal lever to secure the wire in place.

5. Gently pull on each wire to ensure a good connection.

Wiring Tips:

Do not route the sensor cable in conduit containing AC power wiring. •
Electrical noise may interfere with sensor signal.
Routing the sensor cable in grounded metal conduit can help prevent •
electrical noise and mechanical damage.
Seal the cable entry points to prevent moisture damage.•
Only one wire should be inserted into a terminal.•

Splice double wires outside the terminal.

Caution: Failure to fully open terminal jaws before removing wire may

permanently damage transmitter.

NO YESYES

6. Terminal Identication

The transmitter requires regulated 12 to 24
VDC ±10% from an external power supply.
Maximum current draw is 250 mA.

Power must be supplied to terminals
1 & 3 (+) and 2 & 4 (-).

(N.O.) = Normally Open (no contact)
(N.C.) = Normally Closed (contact)

Terminals 1–2: System Power and Auxiliary Power

Required by the transmitter

• Provides DC power to sensors, relays and the
LCD backlight.

Terminals 3–4: System Power and Loop 1 Power

12 to 24 VDC ±10%
Max. loop impedance: 50 Ω max. @ 12 V

325 Ω max. @ 18 V
600 Ω max. @ 24 V

Terminals 5–6: Loop 2 Power

12 to 24 VDC ±10%
Max. loop impedance: 50 Ω max. @ 12 V

325 Ω max. @ 18 V
600 Ω max. @ 24 V

Terminals 7–12: Relay Outputs

Two mechanical SPDT relays programmable as:

• High or Low setpoint with adjustable hysteresis.

• Proportional Pulse (400 pulses per minute
maximum).

• May be disabled (Off) if not used.

• Auxiliary power (Terminals 1 and 2) MUST be

connected.

Terminals 13–18: Digital (S3L) Input/Output

Two sensors connect here.
13: +5 VDC out to sensor 1 (Chlorine)
14: Digital (S3L) signal in from sensor 1 (Chlorine)
15: Sensor 1 ground
16: +5 VDC out to sensor 2 (pH)
17: Digital (S3L) signal in from Sensor 2 (pH)
18: Sensor 2 ground

38630-3 Chlorine Transmitter

7. Sensor Connections

8630 I/O

Te rminals

18

17

16

15

14

13

Sensor Gnd

Digital (S L) data

+5 VDC

Sensor Gnd

Digital (S L) data

+5 VDC

3

3

White

White

Shield

Shield

Red

Red

Black

Black

8630-3 stand-alone application, no loop used. Always splice wires outside of terminals.

Transmitter

Te rminals

Power

Supply

12 to 24 VDC

-

+

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

6

5

4

3

2

1

8630-3 stand-alone application, no loop used. Always splice wires outside of terminals.

Transmitter

Te rminals

Power

Supply

12 to 24 VDC

Connection to a PLC with built-in power supply

Internal

PLC

Connection

Connection to a PLC/Recorder, separate supply

-

+

PLC or Recorder

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

6

5

4

3

2

1

Transmitter

Te rminals

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

6

5

4

3

2

1

6

5

4

3

2

1

Transmitter

Te rminals

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

Power

Supply

12 to 24 VDC

-

+

-

+

PLC Te rminals

Channel 1

4 to 20 mA

Power

Supply

12 to 24 VDC

Channel 2

4 to 20 mA

Channel 2

4 to 20 mA

+

-

+

-

+

-

-

+

Channel 1

4 to 20 mA

Transmitter

Te rminals

Power
Supply

12 to 24 VDC

Connection to a PLC with built-in power supply

Internal

PLC

Connection

Example: Two transmitters connected to PLC/Recorder with separate power supply

-

+

PLC or Recorder

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

6

5

4

3

2

1

Transmitter

Te rminals

Loop 2 -

Loop 2 +

AUX Power -

AUX Power +

6

5

4

3

2

1

6

5

4

3

2

1

Transmitter

Te rminals

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

6

5

4

3

2

1

6

5

4

3

2

1

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

Power

Supply

12 to 24 VDC

-

+

-

+

PLC or Recorder

Channel 3
4 to 20 mA in

Channel 4
4 to 20 mA in

-

+

-

+

Transmitter 1

Te rminals

Transmitter 2

Te rminals

PLC Te rminals

Channel 1

4 to 20 mA

Power

Supply

12 to 24 VDC

Channel 2

4 to 20 mA

Channel 2

4 to 20 mA

+

-

+

-

+

-

+

-

-

+

Channel 1

4 to 20 mA

Channel 1
4 to 20 mA in

Channel 2
4 to 20 mA in

+

-

Power
Supply

12 to 24 VDC

-
+

Note: 8630 transmitters require both terminals 1 & 3 (+) and 2 & 4 (-) to be wired.

Power

Supply

Connection to a PLC with built-in power supply

Internal

PLC

Connection

6

5

4

3

2

1

Transmitter

Te rminals

Loop 2 -

Loop 2 +

System Power Loop 1 -

System Power Loop 1 +

AUX Power -

AUX Power +

-

+

PLC Te rminals

Channel 1

4 to 20 mA

Power

Supply

12 to 24 VDC

Channel 2

4 to 20 mA

+

-

+

-

• The 8630 provides two sets of Input/Output terminals to
connect Digital (S3L) serial data from the chlorine and pH
sensor electronics.

• The total cable length from a sensor to the transmitter must
not exceed 30 m (100 ft).

• Do not route sensor or output cables in conduit containing

AC power wiring.

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

• Seal cable entry points to prevent moisture damage.

• For best performance, ground the sensor shield wires to a
local earth ground at a point near the sensor.

8. System Power and Loop Connections

Signet
pH Sensor
with 3-2750-7
Sensor Electronics

Signet
Chlorine Sensor
with 3-2650-7
Sensor Electronics

4 8630-3 Chlorine Transmitter

9. The View Menu

The View Menu is displayed during normal operation.•
To select a VIEW display, press the UP or DOWN arrow keys. The selections will scroll in a •
continuous loop. There are four pages to view.
Changing the VIEW display does not interrupt system operations.•
No key code is necessary to change display selection.•
Output settings cannot be edited from the VIEW menu.•
All menus timeout after 10 minutes and return to the previous operating display.•
When editing the CALIBRATE or OPTIONS menus, the transmitter will return to the non-edit•

display after 10 minutes and then the VIEW menu in another 10 minutes if no activity occurs.

8630

Chlorine

FCl: 2.67 ppm

7.10 pH 25.3 °C

The example View menus below return to the default display after 10 minutes.

Cl Raw: 103.8 nA

pH Raw: -5.9 mV

Loop 1 10.68 mA
Loop 2 8.56 mA

Last CAL:

10-18-10

10. Transmitter Editing Procedure

The 8630-3 has two menus the user can edit; CALIBRATE and OPTIONS. •
The CALIBRATE menu allows you to calibrate and initialize sensors, dene current loops and set relay functions.•
The OPTIONS menu allows you to set sensor type, adjust and test current loops, test relays and more.•

Step 1. Press and hold the ENTER key:

• 2 seconds to select the CALIBRATE menu.

• 5 seconds to select the OPTIONS menu.

View chlorine, pH and temperature values from the sensor.
FCl = free chlorine.

Chlorine (nA) and pH raw (mV) signals from the sensors.
For reference only.

View of current loop 1 and loop 2 output.

View of the last calibration date. Editable in the Calibrate Menu.

Step 2. Enter the Key Code.

The Key Code is UP-UP-UP-DOWN keys in sequence.

• After entering the Key Code, the display will show the rst item in the selected menu.

Step 3. Scroll the menu in a loop with the DOWN or UP arrow keys.

Step 4. Press the RIGHT ARROW key to select the menu item to be edited.

• The rst display element will begin ashing.

Step 5. Press the UP or DOWN keys to edit the ashing element.

• The RIGHT ARROW key advances the ashing element.

Step 6. Press the ENTER key to save the new setting and return to Step 3.

Made an Error?

Press the UP and DOWN keys simultaneously
while any element is ashing. This will recall the
last saved value of the item being edited and will
return you to Step 3.

Finished Editing?

Press the UP and DOWN keys simultaneously
after saving the last setting to return to view menu.

58630-3 Chlorine Transmitter

ENTER

ENTER

ENTER

2s 5s

ENTER

ENTER

ENTER

10.1 Example: Calibraton

ENTER

ENTER

ENTER

ENTER

ENTER

ENTER

Access the CALIBRATE Menu:

The CALIBRATE and OPTIONS menus require a KEY CODE.
Press and hold the ENTER key for 2 seconds to access the
CALIBRATE menu.

Enter the Key Code:

Pressing the UP, UP, UP, DOWN keys in sequence unlocks the
display and the rst menu item will appear. If no key is pressed
for 5 minutes while the display is showing "Enter Key Code", it will
return to the VIEW menu.

Step 1.

Step 2.

(Hold)

OPTIONS menuOR

CALIBRATE menu

CALIBRATE:---­Enter Key Code

CALIBRATE:--­Enter Key Code

CALIBRATE:-­Enter Key Code

CALIBRATE:­Enter Key Code

Cl Zero
Calibration: >

Scroll the Menu:

Press the DOWN or UP keys to scroll through the Menu.
Refer to pages 7 and 8 for complete listing of these items.
While in this mode, pressing the UP and DOWN keys
simultaneously will return the display to the VIEW menu.
If no key is pressed for 10 minutes, the display will return to
the VIEW menu.

Select the item to be edited:

In this example, "Last Cal" (last calibration date) is chosen to edit.
Pressing the RIGHT arrow key selects the menu item and enters
the screen into edit mode.

Edit the ashing element:

This is the edit mode.
The UP or DOWN keys change the ashing element.
The RIGHT arrow key advances the ashing element in a
continuous loop. In this example, the Last Cal date was
changed from 09-18-09 to 10-18-09.
All output functions remain active during editing.
Only the ashing element can be edited.

Step 3.

Step 4.

Step 5.

Cl Zero
Calibration: >

Last Cal:
09-18-09 >

Example

Last Cal:
09-18-09 >

Last Cal:
09-18-09

Last Cal:
19-18-09

Last Cal:
19-18-09

Last Cal:
10-18-09

Press ENTER to save the new value.

When you have set your desired value, pressing the
ENTER key stores the value on the screen, making it
immediately available to output functions and exits you back
to Step 3.

Made an Error?

Press the UP and DOWN keys simultaneously
while any element is ashing. This will recall the
last saved value of the item being edited and

Step 6.

Press the UP and DOWN keys simultaneously
after saving the last setting to return to the View
Menu.

Last Cal:
Saving

Last Cal:
10-18-09

Finished Editing?

return you to Step 3.

6 8630-3 Chlorine Transmitter