The 9950-3 Chlorine Controller is a two channel controller that can support two sensors in
one instrument. The sensor types supported by the 9950-3 are GF Free Chlorine
(FCl) Chlorine Dioxide (ClO2) and pH. The 9950-3 (which is used in the GF
Chlorine panels) software, combined with smart electronics connected to the Chlorine
sensor (FCl,ClO2) and the pH electrode delivers a real time, accurate Chlorine reading of
the application process.
Includes improved calibration support by automatically time stamping the successful
single point calibration of the Chlorine electrode and a two point calibration of the
pH electrode. Operator can enter the next calibration date and will be notied by the
display's background light turning red.
The addition of "Chemical Guard", only for free chlorine, to the relay menu ensures the
proper dosing of Oxidants and pH adjusting chemicals are delivered safe and accurately.
3-9950
When Chemical Guard mode is selected, the pH control and adjustment is always a
priority over dosing oxidizing chemicals whose concentration is pH dependent.
English
Operating Instructions (see page 6)
• English
• Deutsch
• Español
• Français
• Italiano
• 中文
The 9950-3 comes standard with the 3-9950.393-3, four binary input and two mechanical
relays. Binary input #1 is dedicated to an external ow switch input which enables access
to the new relay mode "Chemical Guard" and also disables the relays when there is no
ow through the system. The 9950-3 supports the -1 and -2 relay modules without ow
switch or Chemical Guard.
The 3-9950-3 comes standard with four, 4 to 20 mA outputs, two mechanical relays with
four binary input relay module.
The 9950 Modbus module makes adding the GF Chlorine Controller / panel
assembly into a new or existing communication network very simple.
WARNING: The GF Chlorine Analyzer (electrode) is designed to be used in a
clean, chlorinated owing stream at all times. DO NOT use in applications where
electrode could be exposed to periods without chlorine.
Page 2
Safety Information
Panel Cutout
92 x 92 mm
(+ 0.8, - 0 mm)
3.6 x 3.6 in.
(+0.031, -0 in.)
Panel Cutout
92 x 92 mm
(+ 0.8, - 0 mm)
3.6 x 3.6 in.
(+0.031, -0 in.)
Panel Cutout
92 x 92 mm
(+ 0.8, - 0 mm)
3.6 x 3.6 in.
(+0.031, -0 in.)
Panel Cutout
92 x 92 mm
(+ 0.8, - 0 mm)
3.6 x 3.6 in.
(+0.031, -0 in.)
minimum
clearance
25 mm
(1 in.)
Start-Up Guide
• Please read entire manual before unpacking, setting up or
operating this equipment. Adhere to all danger, warning and
caution statements. Failure to do so could result in serious
Warning / Caution / Danger
Indicates a potential hazard. Failure to follow all warnings
may lead to equipment damage, injury, or death
injury to the operator or damage the equipment.
Make sure the protection provided by this equipment is not
impaired, do not use or install this equipment in any manner
Alerts user to risk of potential damage to product by ESD
other than specied in this manual.
• This unit is designed to be connected to equipment
which can be hazardous to persons and property if used
incorrectly.
• Read and understand all associated equipment manuals
and safety warnings before using with this product.
• Remove power to unit before wiring connections.
Electrocution Danger
Alerts user to risk of potential of injury or death via
electrocution
Personal Protective Equipment (PPE)
Always utilize the most appropriate PPE during installation
and service of GF products
• Wiring connections to this product should only be performed
by qualied personnel.
• Do not use unit if front panel is cracked or broken.
NOTE / Technical Notes
Highlights additional information or detailed procedure
Installation
For future reference, for each installation, it is recommended to record the part number and serial number of each of the
components listed here:
Facility Tag Number or System ID (user assigned):__________________
_
Base unit 3-9950-3 S/N ___________________
Relay Module 3-9950.393-____ S/N ___________________
Dual Channel 4 to 20 Current Loop Out. Module 3-9950.398-2 S/N ___________________
Modbus Module 3-9950.395-M S/N ___________________
Panel Mount Installation
panel
RELAY MODULE
Made in U.S. from U.S. and imported parts
12-32 VDC
0.50A Max
Loop Voltage
12-32 VDC
0.03A Max
100-240 VAC~
DC Power
USB
PWR+
PWR–
Loop1+
Loop1–
Loop2+
Loop2–
FREQ
DATA
GND
CH2 CH1
FREQ
DATA
N
GND
L
50-60 Hz, 24VA Max
Allowable panel thickness 2.36 mm (0.093 in.) to 33 mm (1.31 in.)
Quick-clip
mounting
bracket
DC POWER
V+
V+
gasket on
front side
of panel
MODULE 1
MODULE 2
GF 9950-3 Chlorine Controller
2
Page 3
Start-Up Guide
Terminal Identication
Prepare the transmitter installation location.
Relay Module
3-9950.393-3
USB Port
DC Power Terminals
If the back of the transmitter is dicult to
access when installed, wire the removable
terminal blocks rst, then install them completely.
Current Loop Outputs 1 and 2
The 9950-3 requires
regulated 12 to 32 VDC,
Current Loop Outputs 3 and 4
3-9950.398-2
±10% (24 VDC nominal)
Maximum current draw is:
500 mA with DC power
24 VA with AC power
Channel 1 Input
Chlorine Sensor Electrode
Optional Modbus Module
3-9950.395-M
Channel 2 Input
pH Electrode
DC Power Terminal 3-9950-3
Required by the instrument
• 12 to 32 VDC, ±10% regulated, 0.5 A MAX. DC power input and Loop current regulated voltage require the use of a
UL60950-1 or UL61010-1 certied power supply. Power supply shall also be rated for operation at 4000 m altitude.
Relay Module
• 3-9950.393-3 Two mechanical relays, 5A 250 VAC or 30 VDC, and four binary inputs rated at 6 mA, 10 VDC to 24 VDC
Module 1
• 3-9950.398-2 Dual Channel 4 to 20 mA Current Loop Output Module
Module 2 (Optional, sold seperately)
• 3-9950.395-M Modbus Module
Channel 1 (Chlorine) and Channel 2 (pH)
• V+: +5 VDC out to sensor (black wire)
• FREQ: Frequency input signal from sensor (red wire)
• S3L DATA: Digital input signal from sensor (red wire)
• GND: Sensor ground (white wire)
Loop Outputs
• Two Passive 4 to 20 mA current loop outputs 12 - 32 VDC, ±10% regulated (30 mA Max) built into the base 9950-3
• Two Passive 4 to 20 mA current loop outputs in Mod 1 A
USB Port
• Software updates will be provided through the USB port
Maintenance
• Clean the instrument case and front panel with a soft cotton cloth dampened with a mild liquid soap solution.
• Never wipe the front window with static retentive cloths such as wool or polyester which may induce a static charge.
• If a static charge develops on the window, you may notice temporary blotches form on the screen. When this occurs, clean
the front window with an anti-static cloth, or a soft cotton cloth and anti-static spray or a mild liquid soap solution to remove
the static charge.
GF 9950-3 Chlorine Controller
3
Page 4
DC POWER
DC POWER
+
–
Black
Red
Power Supply
12 to 32 VDC
Red
Red
+
–
PLC or
Recorder
–
PLC or
Recorder
+
Blue
Blue
WHITE BACKLIGHT
TEXT 3
AUTO LOW
CH2 BAR GRAPH MIN
GPM
0.00
FUNCTION 1
TEXT 3
NONE
FUNCTION 2
TEXT 3
NONE
FUNCTION 3
TEXT 3
NONE
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
7.0
62.8
MISSING SENSOR
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
WHITE BACKLIGHT
TEXT 3
AUTO LOW
CH2 BAR GRAPH MIN
GPM
0.00
FUNCTION 1
TEXT 3
NONE
FUNCTION 2
TEXT 3
NONE
FUNCTION 3
TEXT 3
NONE
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
7.0
62.8
MISSING SENSOR
LANGUAGE
LANGUAGE
ENTER CODE
LANGUAGE
0000
0
PASSWORD
TEXT 3
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
CH1 BAR GRAPH MAX
100.00
SAVING
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
7.0
62.8
MISSING SENSOR
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
CH1 BAR GRAPH MAX
100.00
Password Overview
Start-Up Guide
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 modied in the Options menu.
Password Reset
Turn o 9950-3 Press and hold all 4 keys on keypad while turning on 9950 and unit
will revert back to STD password.
Wiring
PASSWORD TYPE
WRONG CODE
TEXT 3
In the MENU mode, if the
wrong code or password is
entered, an ERROR message
is displayed.
LANGUAGE
0
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).
• Terminals accept 12 to 24 AWG wire.
• Strip 10 to 12 mm (0.4 to 0.5 in.) of insulation from wire tips and tin bare ends to eliminate fraying.
• Insert wire tip or ferrule completely into the terminal and secure with the screw.
• Do not allow any AC leads that may be connected to the internal relays to come in contact with low voltage wiring.
Input Power Wiring
GF 9950-3 Chlorine Controller
4
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.
3-9950-3
Red
+
Power Supply
–
Black
12 to 32 VDC
Caution:
For DC power input and loop current regulated
voltage, use UL60950-1 or UL61010-1 certied
power supply. Power supply shall also be rated
for operation at 4000 m altitude.
Page 5
DC POWER
PLC
4 to 20 mA Wiring
9950 Transmitter with
3-9900.393-3 Relay Module installed
3-9950.393-3 with internally powered flow switch from factory.
N/O 1N/C 1
COM 1
SW4
SW COM
N/O 2N/C 2
COM 2
SW3
SW2
SW1
X
RELAY 1
RELAY 2
BINARY INPUT 3
BINARY INPUT 1
No Connection
BINARY INPUT 2
BINARY INPUT 4
ALARM!
DC Power
+
-
9950.393 External Power
AC or DC
power
Black
Red
Red
Blue
Dual Channel
Conductivity Module
Modbus Module
Shield
Black
White
Red
ISO GND
TEMP
SHLD
SIGNAL
Shield
Black
White
Red
ISO GND
TEMP
SHLD
SIGNAL
Start-Up Guide
9950 Dual Channel 4 to 20 mA ModuleLoop 1 & 2
Red
+
–
Red
Red
Black
Blue
Blue
+
–
+
–
Relay Module Wiring
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.
• 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
Operation
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
ENTER
ENTER key
Access menus
Save changes
GF 9950-3 Chlorine Controller
6
Page 7
Start-Up Guide
1. Wire the input power 12/24 VDC
2. Wire any or all 4-20 mA outputs
3. Wire the 3-2650-7 to the 9950 CH 1 (channel 1)
Wire the 3-2751-7 to the 9950 CH 2 (channel 2)
4. Install the Chlorine and pH electrodes into the 2650 and 2751-7 electronics (place electrodes into the owcell or leave on the electrodes protective caps to protect the sensor tips)
5. Apply power
A new 9950-3 requires initial set up to select the language to be viewed and formating of the displays.
The following instructions will assist in the 9950 set up.
Keypad Functions
The four buttons of the keypad (▲ ▼ ► ENTER) are used to navigate display modes according to the descriptions in this table.
Notice the function of each button may change depending on the display mode.
This menu operation sets up the 9950-3 for basic function:
See page 8 for reference.
1. Select desired language using the ▲ and ▼arrows.
Press ENTER to save.
2. Press ► to select the TIME FORMAT. Press ▲ or ▼ to select 24 hour or AM/PM.
Press ENTER to save the format selection.
3. Press the ▼ move to the next selection, SET TIME.
Press ► to scroll through hours, and minutes place values.
Use ▲ or ▼ to adjust the value.
Press ENTER to save the time selection.
4. Press ▼ to move to the next selection, SET DATE FORMAT.
Press ► to select the MM/DD/YYYY date format and ▼ or ▲ to
scroll through other format options.
Press ENTER to save the date format selection.
5. Press ▼ to move to the next selection, SET DATE.
Press ► to scroll through the days, months, and years.
Use ▲ or ▼ to adjust the number, and ► to select the next
number.
Press ENTER to save the Date selection.
6. Press ▼ to move to the next selection,
SET DECIMAL MARK.
Press ► and use ▲ or ▼ to highlight desired decimal separator
(comma or decimal mark).
Press ENTER to save the decimal mark selection.
7. Press ▼ to move to the next selection, SELECT UNITS.Press ► and scroll ▲ or ▼ to choose Metric or
U.S. Customary.
Press ENTER save unit selection.
8. Press ▼ to move to the next selection SETUP CHANNEL 1.
Press ENTER, ('Looking for Sensor Type' will appear on
the screen).
The 9950-3 will search for an attached S3L sensor on
Channel 1. The found sensor type will be highlighted.
If your desired sensor is not highlighted, use the
▲ or ▼ to scroll through the sensor list and select
another sensor type.
Press ENTER to save sensor type selected.
Press ▲ or ▼ to access screens to adjust common sensor parameters.
► = edit, ENTER = Save, ▲+▼= Cancel.
Press ▲+▼ to return to SETUP CHANNEL 1 screen.
9. Press ▼ to move to the next selection, SETUP CHANNEL 2.
Repeat steps in number 8 to set up Channel 2.
Press ▼ to go back to Channel 1, if desired.
When done, press ▲+▼ together one time exits to the
previous menu. Press ▲+▼ together a second time to exit
Easy Start Up.
10. Calibration Due will flash over each channel once a new
electrode is detected.
Go to the Calibration section to review the proper procedures
for calibration.
GF 9950-3 Chlorine Controller
7
Page 8
ENTER
4
DATE FORMAT
100% SOLUTION
NAME
SAVING
24 HOUR
AM/PM
GERMAN
LANGUAGELANGUAGE
00:00:040
AM/PM
09:11:04
MM/DD/YYYY
DD/MM/YYYY
YYYY/MM/DD
LANGUAGE
LANGUAGE
02/25/20162
AM/PM
02/25/2016
99.999
99,999
OR
ENTER
saves
changes
ENTER
METRIC
U.S. CUSTOMARY
LOOKING FOR
TEXT 3
SENSOR TYPE
MM/DD/YYYY
YYYY/MM/DD
DD/MM/YYYY
NONE
FREE CL
CL02
pH
FACTORY
ENTER
saves
changes
TIME FORMAT
TEXT 3
24 HOUR
SET TIME
TEXT 3
08:56:47
DATE FORMAT
TEXT 3
MM/DD/YYYY
SET DATE
TEXT 3
02/25/2016
SET DECIMAL MARK
TEXT 3
999.99
SELECT UNITS
TEXT 3
U.S. CUSTOMARY
SETUP
3
CHANNEL 1
PRESS ENTER
SETUP
CHANNEL 2
PRESS ENTER
EXIT STARTUP
PRESS ENTER
ENGLISH
DEUTCH
ESPAÑOL
中文
FRANÇ
Start-Up Guide
Easy Set Up can be
entered by setting
either or both channels
to Factory and cycling
power on the 9950-3.
GF 9950-3 Chlorine Controller
8
Page 9
Start-Up Guide
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 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.
In order to achieve the most accurate chlorine measurement, after the minimum 4 hour conditioning period, calibration must be
performed in the following specic 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 ow cell and insert the reference thermometer. If no pH sensor is being used
(ClO2 system), remove the cell plug to insert the thermometer. Replace the plug after calibration.
pH electrode calibration
It is highly recommended to perform a two point calibration of the pH electrode using a pH buer 7 and pH buer 4 or 10. The pH
buers' 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 ow stream
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
4
CAL
INPUT
LOOP
RELAY
OPTION
ENTER
CH 1 FREE CI
25.00
C
5s
ENTER
CH 1 FREE CI
CH 2 pH
TEXT 3
+25.30
+25.00
C
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
GF 9950-3 Chlorine Controller
9
Page 10
fer.
fer.
Calibration
pH Electrode Calibration
CH 1 FREE CI
CH 2 pH
TEXT 3
Start-Up Guide
CH 2 pH
to editto edit
CH 2 pH
OFF
HOLD OUTPUTS
CH 2 pH
SET
SET
pH STANDARD
pH STANDARD
CH 2 pH
6.80
RAW - 3 mV
Place electrode tip in
saturated pH 7.0 buf
to edit
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.
+04.80CH 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
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
+
CH 1 FREE CI
CH 2 pH
TEXT 3
GF 9950-3 Chlorine Controller
10
Page 11
Calibration
Chlorine Electrode Calibration
Start-Up Guide
CH 1 FREE CI
CH 2 pH
TEXT 3
- .01
nA
0.0 PPM
to Save
ENTER
ENTER
CH 2 pH
CH 1 FREE CI
SET
SET
pH STANDARD
IN PROCESS
CH 1 FREE CI
CH 2 pH
TEXT 3
to edit
CH 2 pH
CH 1 FREE CI
SET
SET
pH STANDARD
IN PROCESS
CH 1 FREE Cl
MM/DD/YYYY
CH 1 FREE CI
pH STANDARD
HOLD OUTPUTS
Test sample with an
external DPD test
instrument.
LAST CAL
CH 2 pH
SET
OFF
x3
to edit
CH 1 FREE Cl
MM/DD/YYYY
NEXT CAL
CH 2 pH
CH 1 FREE CI
SET
SET
pH STANDARD
ZERO CAL
+ 002.25
+ 002.25
RAW 100.5 nA
Place electrode tip
into DI water.
Modify Chlorine PPM
value to match DPD
reference.
MM/DD/YYYY
NEXT CAL
MM/DD/YYYY
to Save
ENTER
CH 1 FREE Cl
NEXT CAL
MM/DD/YYYY
+
Display returns to
calibration display
GF 9950-3 Chlorine Controller
11
Page 12
Warranty InformationTable of Contents
99.06 mm
(3.90 in.)
1234
99.06 mm
(3.90 in.)
ENTER
90.73 mm(3.57 in.)
91.44 mm(3.60 in.)
82.60 mm(3.25 in.)
90.73 mm
(3.57 in.)
91.44 mm
(3.60 in.)
102.37 mm
(4.03 in.)
82.60 mm
(3.25 in.)
Refer to your local Georg Fischer Sales oce 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 oce 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 buers, 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, chemical poisoning, dry-out) or
mishandling (e.g. broken glass, damaged membrane, freezing
and/or extreme temperatures).
Dimensions
3-9950-3
Front View
General Information ...................................................................1
Ordering Information ................................................................40
12
Side View
GF 9950-3 Chlorine Controller
Page 13
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 (S3L) 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 (S3L) Bus:
The quality of the cable used
in the bus determines the
maximum length.
The maximum cable length
may not exceed
305 m (1000 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 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 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.
GF 9950-3 Chlorine Controller
13
Page 14
Plug-In Modules
a
b
c
d
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 eld-replaceable at any time.
See Module Installation (pg. 3) and Ordering Information (pg. 40) 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.
Default Communication Parameters
ModBus Address 95
ModBus Termination O
ModBus Mode RTU
ModBus Baud Rate 19.2K
ModBus Parity Even
ModBus Endian Big
GF 9950-3 Chlorine Controller
14
Page 15
Relay Modes
The 9950-3 has a slot for an optional Relay Module for the module listed on page 14.
• 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 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 5.
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 “O” (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 µADC
500 µA
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 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
sucient 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 eects.
Recommended for inductive loads greater than 50 VAC (remote relays,
solenoids, pumps, etc.)
GF 9950-3 Chlorine Controller
15
Page 16
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 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 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
No
Is there flow?
Disable R1 and R2
YES
Is the pH correct?
YES
Is the Chlorine level
correct?
YES
No
No
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 OXIDIZER 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
GF 9950-3 Chlorine Controller
16
Page 17
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 conrm
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 Set Point. 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
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.
Caution:
If HOLD WHILE RELAY # ACTIVE setting is changed while an
Activation or Recovery is in process, the setting will be applied after
the cycle is complete. To apply the change immediately, cycle power
to the 9950-3.
Example: Binary Input
A 3-4630.395 Flow Switch is
mounted in the Chlorine ow
cell.
The ow switch will prevent the
relay(s) from activating if the
ow to the cell is interrupted.
GF 9950-3 Chlorine Controller
17
Page 18
10
5
Relay Output Rate:
0 to 100 Pulses/min.
Pulse rate
0 pulses
100 pulses
7.5
Relay Modes
Hysteresis
Time
High Setpoint
Process
Hysteresis
Time
Low Setpoint
Process
Time
High Limit
Hysteresis
Low Limit
Process
Window
Low Setpoint + Hysteresis
High Setpoint - Hysteresis
Hysteresis
Time
High Setpoint
Process
High Setpoint - Hysteresis
Time
Time
Time
Hysteresis
Relay energized
Relay de-energized
Low Setpoint + Hysteresis
High Setpoint - Hysteresis
The 9950-3 relays are selectable and congurable and can be
used as switches that respond when the process value moves
above or below a user-dened 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 o 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 o 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 dened 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 ash in PULSE mode.
100 pulses
Starting pointEndpoint
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.
18
GF 9950-3 Chlorine Controller
Page 19
Menu System
WHITE BACKLIGHT
TEXT 3
AUTO LOW
CH2 BAR GRAPH MIN
GPM
0.00
FUNCTION 1
TEXT 3
NONE
FUNCTION 2
TEXT 3
NONE
FUNCTION 3
TEXT 3
NONE
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
7.0
62.8
MISSING SENSOR
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
WHITE BACKLIGHT
TEXT 3
AUTO LOW
CH2 BAR GRAPH MIN
GPM
0.00
FUNCTION 1
TEXT 3
NONE
FUNCTION 2
TEXT 3
NONE
FUNCTION 3
TEXT 3
NONE
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
7.0
62.8
MISSING SENSOR
LANGUAGE
LANGUAGE
ENTER CODE
LANGUAGE
0000
0
PASSWORD
TEXT 3
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
CH1 BAR GRAPH MAX
100.00
SAVING
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
7.0
62.8
MISSING SENSOR
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
CH1 BAR GRAPH MAX
100.00
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
_ _ _ _ ._
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
FUNCTION 4
TEXT 3
NONE
CH1
GPM DECIMAL
_ _ _ _ . _
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
TEXT 3
STD
00.00
15.00
00.00
00.00
CH1
____._
9999.9
CH2
mV
GPMS
pH
°F
62.8
7.0
WRONG SENSOR
_ _ _ _ ._
CH2
OFF
TOTAL LOCK
SET SEPERATOR
999.99
CONTRAST
3
RED BACKLIGHT
OFF
DISPLAY
ON
BAR GRAPH
CH1 BAR GRAPH MIN
0.00
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 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 congure all menu items.
The 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
specic message (e.g., Wrong
Sensor). Once the error is
resolved or cleared, the error
message stops.
7 .0
7.0
mV
GPMS
00.00
pH
15.00
mV
GPMS
00.00
15.00
pH
°F
°F
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
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
• CODE
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.
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 modied in the Options menu.
Password Reset
Turn o 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
0
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).
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 visable.
pH
If Channel 2 doesn't have a sensor assigned to it, the area will be blank.
14
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.
pH
Channel 2 electrode information: pH primary value and visual bar graph on bottom line.
15.0
View Measurement Display 3
5.0
Channel 1 electrode information: primary value, bar graph and custom name on top line.
pH
Channel 2 electrode information: primary value, bar graph and custom name on bottom line.
15.0
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
MODULE LOOPS
pH
FCI
MOD2 A
MOD2 B
12.00
4.00
18.00
12.00
8.00
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 Oset]
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 oset 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:
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
OFF
OFF
OFF
OFF
999
99999
99999
99999
FREE CI
399504033
39950408
4-20 OUT
00-06
0123456789
ON
ON
ON
pH
Relay status is stated to the right of the relay number as (OFF, ON) for each relay.
When the ow switch is enabled, the label for Binary Input will automatically change to FLOW SWITCH. The
Binary labels can be manually congured. 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
TEXT 1
MENU ->
TEXT 3
Important
The Relay, Mod1 and Mod2 number returned by the Sys Cong Screen is not the Mfr. Part No.
To convert from the displayed number to the GF Mfr. Part No. use the chart below.
ModuleRELAY, MOD1 or MOD2Mfr. Part No.
DATE
09/01/2016
09:06
MENU-> will allow access to top level menu by pressing the ► key.
DATE and TIME display show the current system date and time
Dual Channel 4 to 20 Out399504083-9950.398-2
Modbus Module399504093-9950-395M
Relay Four Mechanical3995040313-9950.393-1
Relay Two SS and Two Mechanical3995040323-9950.393-2
Relay Two Mech and Four Binary3995040333-9950.393-3
GF 9950-3 Chlorine Controller
21
Page 22
CH 1 FREE CI
HOLD OUTPUTS
OFF
CH 1 FREE CI
ZERO CAL
SET
CH 1 TEMP
TEMPERATURE ->
SET
CH 1 FREE CI
IN PROCESS ->
SET
CH 1 FREE CI
HOLD OUTPUTS
OFF
CH 1 FREE CI
ZERO CAL
SET
CH 1 TEMP
TEMPERATURE ->
SET
CH 1 FREE CI
IN PROCESS ->
SET
CH FREE FCI
RESET CAL
CH 1 FREE CI
HOLD OUTPUTS
OFF
CH 1 FREE CI
ZERO CAL
SET
CH 1 FREE CI
MM - DD - YYYY
NEXT CAL
CH 1 TEMP
TEMPERATURE ->
SET
CH 1 FREE CI
IN PROCESS ->
SET
CH FREE FCI
RESET CAL
Calibration
ENTER
4
NONE
FLOWpHORP
FACTORY
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).
4
CAL
INPUT
LOOP
RELAY
OPTION
ENTER
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 buer 4.0 and 7.0).
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 ow cell with
chlorinated water owing through the 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.
TEMPERATURE ->
CH 1 FREE CI
OFF
HOLD OUTPUTS
CH 1 TEMP
SET
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.
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 9
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).
GF 9950-3 Chlorine Controller
22
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.
Page 23
CH2 pH
AT INSTRUMENT
CAL
CH 2 pH
HOLD OUTPUTS
OFF
CH2 pH
TIMER
EASYCAL ->
CH2 pH
pH STANDARD
SET
CH 2 pH
HOLD OUTPUTS
OFF
CHANNEL 2
pH
NAME
CH 2
TEMP UNITS
°F
CH 2 pH
OFF
AVERAGE
CH 2 pH
IMP UPDATE TIME
60
CH 2 pH
HOLD OUTPUTS
OFF
CH 2 pH
AT INSTRUMENT
CAL
CH 2 pH
C ST CELL CON-
EASYCAL ->
CH 2 pH
TEMPERATURE ->
SET
CHANNEL 2
pH
NAME
CH 2 pH
°F
CH 2 pH
CUST CEOFFL CONST
AVERAGE
CH 2 pH
pH
TYPE
AT INSTRUMENT
CHANNEL 2
NAME
CHANNEL 2
NAME
CH2 pH
AT INSTRUMENT
CAL
CH 2 pH
HOLD OUTPUTS
OFF
CH2 pH
TIMER
EASYCAL ->
CH2 pH
pH STANDARD
SET
CH2 pH
pH SLOPE ->
SET
CH2 pH
RESET pH CAL ->
SET
CH2 pH
RESET TEMPCAL ->
100.0
CH 2 pH
HOLD OUTPUTS
OFF
CHANNEL 2
pH
NAME
CH 2
TEMP UNITS
°F
CH 2 pH
OFF
AVERAGE
CH 2 pH
IMP UPDATE TIME
60
CH 2 pH
HI IMP WARN
NONE
CH2 pH
TEMPERATURE ->
SET
TEMPERATURE
MM - DD - YYYY
NEXT CALIBRATION
CH 2 pH
MM - DD - YYYY
NEXT CAL
CH2 pH
AT INSTRUMENT
CAL
CH 2 pH
HOLD OUTPUTS
OFF
CH2 pH
TIMER
EASYCAL ->
CH2 pH
pH STANDARD
SET
CH2 pH
pH SLOPE ->
SET
CH 2 pH
HOLD OUTPUTS
OFF
CHANNEL 2
pH
NAME
CH 2
TEMP UNITS
°F
CH 2 pH
OFF
AVERAGE
CH 2 pH
IMP UPDATE TIME
60
CH 2 pH
HI IMP WARN
NONE
Calibration
pH 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 ->
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
Applies an oset 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 oset 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.
GF 9950-3 Chlorine Controller
23
Page 24
INPUT Menu
ENTER
ENTER
4
ENTER
ENTER
4
NONE
FLOWpHORP
FACTORY
CAL
INPUTLOOPRELAYOPTION
CH 1 FREE CI ->
CH 2 pH ->
MANUAL pH
OFF
CH 2 pH
pH
TYPE
CHANNEL 2
pH
NAME
MANUAL pH VALUE
pH
7.00
CH 2 pH
OFF
AVERAGE
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 ClO2). Channel 2 is dedicated to pH
4
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 (ClO2).
ENTER
Allows user to congure electrode specic 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 sensor type assigned to the channel.
Channel 1 is dedicated to Chlorine electrodes (FCl and ClO2).
Choose FACTORY, FREE Cl or ClO2.
Assign a specic 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 the S³L electronics.
Select FACTORY, FREE Cl, Cl02
DEFAULT = FACTORY, the 2751-7 (pH Electronics) and 2650 (Chlorine Electronics) will automatically
be found by the controller.
GF 9950-3 Chlorine Controller
24
Page 25
CHANNEL 2
pH
NAME
CH 2 pH
°F
CH 2 pH
CUST CEOFFL CONST
AVERAGE
CH 2 pH
pH
TYPE
AT INSTRUMENT
CHANNEL 2
pH
NAME
CH 2 pH
°F
CH 2 pH
OFF
AVERAGE
AT INSTRUMENT
CH 2 pH
pH
TYPE
CH 1 pH
60
CH 1 pH
HI IMP WARN
3X
IMP UPDATE TIME
MOhm
03
BROKEN GLASS
INPUT Menu
CH 1 FREE CI ->
CH 2 pH ->
MANUAL pH
OFF
CHANNEL 2
pH
NAME
MANUAL pH VALUE
pH
7.00
CH 2 pH
OFF
AVERAGE
pH INPUT Menu
CH 1 FREE CI ->
CH 2 pH ->
CHANNEL 2
NAME
pH
MANUAL pH
OFF
MANUAL pH VALUE
7.00
pH
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 specic 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
pH
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.
GF 9950-3 Chlorine Controller
25
Page 26
4 to 20mA Output (LOOP OUTPUT)
LOOP 1
FCI
LABEL
LOOP 1
LOG
MODE
LOOP 1
NONE
SOURCE
ENTER
ENTER
4
ENTER
ENTER
4
NONE
FLOWpHORP
FACTORY
ENTER
ENTER
4
CALINPUTLOOPRELAYOPTION
INPUT
CAL
INPUTLOOPRELAYOPTION
The following can individually be set for each loop on the 9950-3.
4
CAL
INPUT
LOOP
RELAY
OPTION
ENTER
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
4.00
mA
21.0
mA
12.05
mA
L1 ADJUST 4 mA
L1 ADJUST 20 mA
L1 TEST LOOP
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 identication.
Default name will be the SOURCE sensor type chosen above.
(ALL) Set value corresponding to desired 4 mA output. 6 digits max.
(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 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 ne-tuning to compensate for errors in other equipment connected to the 9950.
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.
GF 9950-3 Chlorine Controller
26
Page 27
Relay Menu
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
FLOW SWITCH?
NO
RELAY 1
OFF
CHEMICAL GUARD
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
pH ADJUST
0.00 SEC
ON DELAY
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
FLOW SWITCH?
NO
RELAY 1
OFF
CHEMICAL GUARD
OXIDIZER
OFF
MODE
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
pH ADJUST
0.00 SEC
ON DELAY
pH ADJUST HYSTERISIS
MULTpHIPLE
0.00
RELAY 2
OXIDIZER
LABEL
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
pH ADJUST
OFF
MODE
FLOW SWITCH?
NO
RELAY 1
OFF
CHEMICAL GUARD
OXIDIZER
OFF
MODE
OXIDIZER SET LOW
PPM
0.00
OXIDIZER SET HIGH
PPM
0.00
OXIDIZER
m0.00 SECA
ON DELAY
OXIDIZER HYSTERISIS
mPPMA
0.00
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
pH ADJUST
0.00 SEC
ON DELAY
pH ADJUST HYSTERISIS
MULTpHIPLE
0.00
RELAY 2
OXIDIZER
LABEL
RELAY2 ACTIVE
NO
RED BACKLIGHT
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
pH ADJUST
OFF
MODE
pH ADJUST
7.00 pH
PULSE MIN
RELAY 2
mAA
TEST RELAY
RELAY 1
mNONEA
SOURCE
pH ADJUST
8.00 pH
PULSE MAX
pH ADJUST RELAY
TEST RELAY
ENTER
ENTER
4
ENTER
ENTER
4
NONE
FLOWpHORP
FACTORY
ENTER
ENTER
4
CALINPUTLOOPRELAYOPTION
INPUT
ENTER
ENTER
4
INPUT
CAL
INPUTLOOPRELAYOPTION
CAL
LOOP
RELAYOPTION
4
CAL
INPUT
LOOP
RELAY
OPTION
ENTER
ENTER
CHEMICAL GUARD Menu
OXIDIZER PULSE MIN
OXIDIZER PULSE MAX
FLOW SWITCH?
NO
RELAY 1
CHEMICAL GUARD
OFF
OXIDIZER
MODE
OFF
RELAY 1
LABEL
OXIDIZER
OXIDIZER SET LOW
OXIDIZER SET HIGH
OXIDIZER MODE
MODE
PROP PULSE
R1 MAX RATE
120.00
mPULSES/MINA
0.00
PPM
0.00
PPM
5.00
PPM
0.10
PPM
A ow switch is necessary to enable the Chemical Guard feature.
Verify the use of a 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 17.
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 identication.
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 o 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 xed at 100 ms.
GF 9950-3 Chlorine Controller
27
Page 28
Relay Menu
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
pH ADJUST
0.00 SEC
ON DELAY
pH ADJUST HYSTERISIS
MULTpHIPLE
0.00
RELAY 2
OXIDIZER
LABEL
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
pH ADJUST
OFF
MODE
pH ADJUST
7.00 pH
PULSE MIN
pH ADJUST
8.00 pH
PULSE MAX
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
pH ADJUST
00.00
SET LOW
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
pH ADJUST
OFF
MODE
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
pH ADJUST
0.00 SEC
ON DELAY
pH ADJUST HYSTERISIS
MULTpHIPLE
0.00
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
pH ADJUST
OFF
MODE
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
RELAY 1
CH 1 PRIMARY
SOURCE
RELAY 1
BINARY ON
MODE
RELAY 1
TIMER
SOURCE
RELAY 1
MULTIPLE
SOURCE
RELAY 1
OFF
MODE
R1 SET LOW
PPM
0.10
R1 SET HIGH
PPMA
5.00
R1 SET VOLUME
mUNITSA
100.00
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 MAX RATE
mPULSES/MINA
120.00
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
R1 PWM MIN
mUNITSAA
00.0
R1 PWM MAX
mUNITSA
10.00
RELAY 1
mSSTART DATETA
04/23/2016
RELAY 1
RELAY 1
LABEL
CHEMICAL GUARD Menu
RELAY 1 ACTIVATE
RED BACKLIGHT
NO
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 identication.
28
R1 MAX RATE
mPULSES/MINA
RELAY 2 ACTIVE
RED BACKLIGHT
GF 9950-3 Chlorine Controller
pH ADJUST
SET HIGH
0.00
pH ADJUST
PULSE MIN
pH ADJUST
PULSE MAX
TEST RELAY
7.00 pH
8.00 pH
120.00
NO
RELAY 2
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 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 = 8.00 pH
Enter the maximum oset (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 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 o for testing purposes.
Page 29
Relay Menu
RELAY 1
CH 1 PRIMARY
SOURCE
RELAY 1
BINARY ON
MODE
RELAY 1
TIMER
SOURCE
RELAY 1
MULTIPLE
SOURCE
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
CH 1 PRIMARY
SOURCE
RELAY 1
BINARY ON
MODE
RELAY 1
TIMER
SOURCE
RELAY 1
MULTIPLE
SOURCE
RELAY 1
OFF
MODE
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 MAX RATE
mPULSES/MINA
120.00
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
RELAY 1
mSSTART DATETA
04/23/2016
R1 PWM PERIOD
SEC
1.00
RELAY 1
CH 1 PRIMARY
SOURCE
RELAY 1
BINARY ON
MODE
RELAY 1
TIMER
SOURCE
RELAY 1
MULTIPLE
SOURCE
RELAY 1
OFF
MODE
R1 SET LOW
PPM
0.10
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 MAX RATE
mPULSES/MINA
120.00
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
R1 PWM MIN
mUNITSAA
00.0
RELAY 1
mSSTART DATETA
04/23/2016
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
RELAY 1
CH 1 PRIMARY
SOURCE
RELAY 1
BINARY ON
MODE
RELAY 1
TIMER
SOURCE
RELAY 1
MULTIPLE
SOURCE
RELAY 1
OFF
MODE
R1 SET LOW
PPM
0.10
R1 SET HIGH
PPMA
5.00
R1 SET VOLUME
mUNITSA
100.00
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 MAX RATE
mPULSES/MINA
120.00
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
R1 PWM MIN
mUNITSAA
00.0
R1 PWM MAX
mUNITSA
10.00
RELAY 1
mSSTART DATETA
04/23/2016
RELAY 1
RELAY 1
LABEL
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PULSE MIN
PPMIPLE
5.00
R1 PULSE MAX
PPMF
0.10
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
R1 SET TOTAL
SEUNITSC
100.00
RELAY 1
mA
TEST RELAY
R1 HYSTERSIS
PPM
0.50
R1 USP PERCENT
%
0.20
R1 ON DELAY
SEC
5.0
R1 PWM PERIOD
SEC
1.00
R1 CYCLE TIME
%SECE
0.00
R1 SET VOLUME
SEUNITSC
100.00
R1 PULSE WIDTH
SEC
1.00
pH ADJUST
00.00
SET LOW
pH ADJUST
0.00
SET HIGH
pH ADJUST
0.00 SEC
ON DELAY
pH ADJUST HYSTERISIS
MULTpHIPLE
0.00
RELAY 2
OXIDIZER
LABEL
RELAY2 ACTIVE
NO
RED BACKLIGHT
OXIDIZER MODE
PROP PULSE
MODE
OXIDIZER PULSE MIN
PPM
5.00
OXIDIZER PULSE MAX
PPM
0.10
pH ADJUST
OFF
MODE
pH ADJUST
7.00 pH
PULSE MIN
RELAY 2
mAA
TEST RELAY
pH ADJUST
8.00 pH
PULSE MAX
pH ADJUST RELAY
TEST RELAY
STANDARD RELAY Menu
NOTE: Screens below are only visible when Porportional Pulse Mode is selected.
mPULSES/MINA
RELAY 1 ACTIVATE
RED BACKLIGHT
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
R1 ON DELAY
R1 PULSE MIN
PPMIPLE
R1 PULSE MAX
R1 MAX RATE
TEST RELAY
0.50
PPM
5.0
SEC
5.00
0.10
PPMF
120.00
NO
RELAY 1
mA
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 15, 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 identication.
(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.
Set seconds (up to 9999.9) to wait before activating relay once the relay condition is true.
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 = Chlorine 5.00 PPM, Temperature 45 C, pH 8.0
Enter the maximum o 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 = Chlorine 0.10 PPM, Temperature 25 C, pH 4.0
Set desired maximum pulse rate (300 max)
NOTE: Pulse width is 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 o for testing purposes.
Can also be used to reset or latch/unlatch the relay. Does NOT reset the Totalizer.
GF 9950-3 Chlorine Controller
29
Page 30
OPTION Menu
SET LANGUAGE
CH 1 PRIMARY
ENGLISH
RED BACKLIGHT
ON
DISPLAY
ON
BAR GRAPH
CH2 BAR GRAPH MIN
PPM
0.00
CH2 BAR GRAPH MAX
PPM
100.00
FUNCTION 1
OFF
NONE
CH1
PPM DECIMAL
_ _ _ _._
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
MEMO
SEC
MEMO
9950
SEC
GENERATION 3
USER MANUAL
SEC
100.00
CH1
°F DECIMAL
_ _ _ _._
CH1
TOTAL DECIMAL
_ _ _ _._
WHITE BACKLIGHT
mA
AUTO LOW
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
SET LANGUAGE
CH 1 PRIMARY
ENGLISH
TIME FORMAT
BINARY ON
24 HR
SET TIME
TIMER
08:56
DATE FORMAT
MULTIPLE
MM/DD/YYYY
SET DATE
OFF
02/25/2016
SET DECIMAL MARK
mA
999.99
SELECT UNITS
mA
METRIC
CONTRAST
mA
3
RED BACKLIGHT
ON
DISPLAY
ON
BAR GRAPH
CH2 BAR GRAPH MIN
PPM
0.00
CH2 BAR GRAPH MAX
PPM
100.00
FUNCTION 1
OFF
NONE
CH1
PPM DECIMAL
_ _ _ _._
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
MEMO
SEC
MEMO
9950
SEC
GENERATION 3
USER MANUAL
SEC
100.00
CH1
°F DECIMAL
_ _ _ _._
CH1
TOTAL DECIMAL
_ _ _ _._
WHITE BACKLIGHT
mA
AUTO LOW
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
ENTER
ENTER
4
ENTER
ENTER
4
NONE
FLOWpHORP
FACTORY
ENTER
ENTER
4
CALINPUTLOOPRELAYOPTION
INPUT
ENTER
ENTER
4
INPUT
ENTER
ENTER
4
CAL
INPUTLOOPRELAYOPTION
CAL
LOOP
RELAYOPTION
CALINPUTLOOP
RELAY
OPTION
CAL
INPUT
LOOP
RELAY
OPTION
4
ENTER
ENTER
ENGLISH
FRANÇ
DEUTCH
ESPAÑOL
中文
SET DECIMAL MARK
GF 9950-3 Chlorine Controller
30
TIME FORMAT
24 HR
BINARY ON
SET TIME
08:56
TIMER
DATE FORMAT
MM/DD/YYYY
MULTIPLE
SET DATE
02/25/2016
OFF
999.99
mA
SELECT UNITS
METRIC
mA
CONTRAST
3
mA
Choose desired the language for the 9950-3. Default = English
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.
Page 31
OPTION Menu
RED BACKLIGHT
ON
DISPLAY
ON
BAR GRAPH
CH2 BAR GRAPH MIN
PPM
0.00
CH2 BAR GRAPH MAX
PPM
100.00
FUNCTION 1
OFF
NONE
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
MEMO
SEC
MEMO
9950
SEC
GENERATION 3
CH1
TOTAL DECIMAL
_ _ _ _._
WHITE BACKLIGHT
mA
AUTO LOW
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
RED BACKLIGHT
ON
DISPLAY
ON
BAR GRAPH
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
CH1
TOTAL DECIMAL
_ _ _ _._
WHITE BACKLIGHT
mA
AUTO LOW
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
RED BACKLIGHT
ON
DISPLAY
ON
BAR GRAPH
CH2 BAR GRAPH MIN
PPM
0.00
CH2 BAR GRAPH MAX
PPM
100.00
FUNCTION 1
OFF
NONE
CH1
PPM DECIMAL
_ _ _ _._
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
MEMO
SEC
MEMO
9950
SEC
GENERATION 3
USER MANUAL
SEC
100.00
CH1
CH1
TOTAL DECIMAL
_ _ _ _._
WHITE BACKLIGHT
mA
AUTO LOW
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
CH1
TOTAL DECIMAL
_ _ _ _._
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
CH1
OFF
TOTAL LOCK
CH1
TOTAL DECIMAL
_ _ _ _._
COND/RES
OFF
AUTORANGE
CH1
OFF
TOTAL LOCK
CH1
TOTAL DECIMAL
_ _ _ _._
COND/RES
OFF
AUTORANGE
WHITE BACKLIGHT
PASSWORD TYPE
PASSWORD TYPE
CH2 BAR GRAPH MIN
CH2 BAR GRAPH MAX
AUTO LOW
mA
RED BACKLIGHT
ON
DISPLAY
BAR GRAPH
ON
STD
%
CODE
%
0.00
PPM
100.00
PPM
CH1
_ _ _ _._
PPM DECIMAL
_ _ _ _._
°F DECIMAL
MEMO
MEMO
SEC
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 4 for further detail)
(CODE) If code is selected
Default Code = 0000 (Refer to page 4 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
(ALL) Enter 17-character string, if desired.
Default = MEMO
GF 9950-3 Chlorine Controller
31
Page 32
CH1
OFF
TOTAL LOCK
PASSWORD TYPE
%
STD
MEMO
SEC
MEMO
CH1
TOTAL DECIMAL
_ _ _ _._
PASSWORD TYPE
%
CODE
COND/RES
OFF
AUTORANGE
MODBUS
EVEN
PARITY
MODBUS
BIG
ENDIAN
MODBUS
EVEN
PARITY
MODBUS
BIG
ENDIAN
RESET TO
NO
DEFAULT
ACTIVATE
NO
SETTINGS
Modbus Menus
MODBUS
MODULE
NONE
MODBUS
COMMUNICATION
SETTINGS ->
MODBUS
REMOTE UPDATE
NO
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 33 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.
GF 9950-3 Chlorine Controller
32
Page 33
Modbus Menus
MODBUS
NONE
MODULE
MODBUS
EVEN
PARITY
MODBUS
BIG
ENDIAN
MODBUS
NONE
MODULE
MODBUS
SETTINGS ->
COMMUNICATION
MODBUS
EVEN
PARITY
MODBUS
BIG
ENDIAN
RESET TO
NO
DEFAULT
ACTIVATE
NO
SETTINGS
MODBUS
NO
REMOTE UPDATE
OPTION Menu
MODBUS
COMMUNICATION
SETTINGS ->
Press the ► key to change the settings of the Modbus Module
Modbus Communication Settings Menus
MODBUS
ADDRESS
95
NETWORK
Set the Modbus address of the 9950-3.
The default address is 95
The 9950 Modbus Module has an electronic termination network.
TERMINATION
NO
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 o).
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 oating point numbers in the Modbus protocol.
The default value is Big Endian.
DEFAULT
NO
ACTIVATE
SETTINGS
NO
Reset all Modbus setting to the default values.
ACTIVATE SETTINGS:
YES sends the changes to the Modbus Module, NO keeps the current settings
GF 9950-3 Chlorine Controller
33
Page 34
9950 Field Software Upgrade
The 9950 upgrade le will be available
on the Georg Fischer website. You will
need a USB 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 le is named Update.Fwc.
Copy the le to the root directory of the
Flash Drive. Do not change the name of
the le or store the le in a sub directory
on the Flash Drive. The 9950 will only
look in the root directory for the specic
le, Update.Fwc.
Important! Do not use a USB extension cable. The USB
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.gfpscom.
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 ash quickly as the unit searches for a Flash Drive and
the correct le.
5. When the 9950 detects a Flash Drive and a valid update le, LED 2 will slowly
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 nd the Flash Drive or the le.
a. Verify the Flash Drive has been formatted in either
FAT16 or FAT32 format, the upgrade le is in the root
directory of the Flash Drive, and the le name is
Update.Fwc.
You may also need to try a dierent ash drive.
b. If LED 4 on the 9950 is continuously illuminated, this
indicates either the 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 le on the Flash Drive was
corrupted.
• Download a new copy of the update le and copy it
to the Flash Drive.
• Repeat the update instruction with the new 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 le and copy it
to a dierent Flash Drive.
• Repeat the update instruction with the new
Flash Drive.
GF 9950-3 Chlorine Controller
34
Page 35
Troubleshooting
ConditionPossible CausesSuggested Solution
Incorrect sensor installed on channelConnect correct sensor to channel
Wrong Sensor
Sensor Type set incorrectly in 9950-3
Wrong CodeWrong password enteredEnter correct password (see page 4)
Set correct sensor TYPE in INPUT menu
(see page 24)
Backlight inoperative
Relays inoperative
Relay always ON
– – – – –
Missing Module
Wrong Module
Backlight turned OFF
(NOTE: Backlight can turn o
automatically in AUTO mode)
Set BACKLIGHT to LOW, HIGH, AUTO
LOW or AUTO HIGH in OPTION menu.
Relay Module installed incorrectlyRemove and reseat Relay Module
Wrong settings in RELAY menu
Use test relay to verify relay operation then
check relay settings.
Flow Switch OFFTurn Flow Switch ON
Hysteresis value too largeChange the hysteresis value
Defective Relay ModuleReplace Relay or Modbus Module
Measurement exceeds display
capability
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
Change unit of measure
Install the module in the correct slot
Replace module with the correct module
Calibration is required for all new
sensors
Calibration Due
Calibration was reset to factory
Next Calibration date reached
Next Calibration date was not set
No pH valuepH electrode faulty
No Flow
Man pH
No ow detected through the Flow
Switch
Manual pH compensation has been
selected
Do the Calibration
Replace pH electrode
Place pH electrode input to Manual
Verify water source is turned ON
Verify the ow cell outlet ball valve is open
Disable Flow Switch input via Relay Menu
Replace pH electrode
Set Manual pH to OFF
GF 9950-3 Chlorine Controller
35
Page 36
ConditionPossible CausesSuggested 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.
Correct error condition
Visually inspect pH electrode for cracked
and/or chipped glass
Visually inspect the pH electrode and
clean if necessary
Electrode could be in airEnsure electrode is submersed at all times
Perform pH EasyCal (pg. 31 & 59)
Slope and/or Oset are out of range
Set pH Slope or Standard (pg. 32 & 60)
Reset pH CAL (pg. 32)
GF 9950-3 Chlorine Controller
36
Page 37
Calibration Error Messages
MessageCauseSolution
Out Of Range Use Manual
Calibration
Err Too Large To Calibrate
(pH) Buer not found;
Error > ±1.5 pH units
(pH) Oset > 1.3 pH units;
Slope error > 100%
Troubleshooting
• Use 4 and 7 pH buers
• Clean sensor and retry EasyCal
• Use manual calibration method
• Check reference
• Clean sensor
• Replace sensor
Chlorine - nA out of range when
compared to the DPD sample
Cal Error Out Of Range
pH - Calibration exceeds the maximum
oset of the reference junction allowed
Slope Too Close To Standard(pH) Dierence in calibration values
must be > 2 pH units
Standard Too Close To Slope
(pH) Dierence in calibration values
must be > 2 pH units
Check input at 4 mA and 20 mA settings
• Check sensor range
• Check reference
• Replace sensor
• Check sensor
• Use fresh buer
• Use two dierent buer values
• Clean sensor
• Clean sensor
• Use fresh 4, 7 and 10 pH buers
• Use two dierent buer values
GF 9950-3 Chlorine Controller
37
Page 38
Specications
General
Input channels ............Two channels
Outputs.......................Two passive 4 to 20 mA outputs
Two active 4 to 20 mA ouputs
Two mechanical relays, 250 VAC,
5 amp
Indicators .................... Two horizontal digital bar graphs,
four LED relay status indicators
Enclosure
Size .....................¼ DIN
Mounting
Panel ................... ¼ DIN, ribbed on four sides for panel
mounting clip inside panel, silicon
gasket included
Wall ......................Wall Mount Enclosure
(sold as an accessory)
Terminal Blocks
Pluggable screw type: use minimum 105 °C rated wire
Torque ratings
Power/Loop..........0.49 Nm (4.4 lb-in.)
Freq/S3L ...............0.49 Nm (4.4 lb-in.)
Relay....................0.49 Nm (4.4 lb-in.)
Connector wire gauge:
Power, Loop .........12 to 28 AWG
Freq/S3L ...............16 to 28 AWG
Module connector wire gauge:
Relay....................12 to 28 AWG
Environmental
Ambient Temperature:
DC Power ...............-10 °C to 70 °C (14 °F to 158 °F)
Storage Temp .........-15 °C to 70 °C (5 °F to 158 °F)
Relative Humidity........ 0 to 100% condensing for (front only);
0 to 95% non-condensing (rear panel)
Maximum Altitude .......4,000 m (13,123 ft)
Enclosure Rating .......... NEMA 4X/IP65 (front face only)
Installation Category Cat II
Pollution Degree 2
Electrical Requirements
Power to Electrodes
Voltage...............................
Current...............................30 mA Maximum
Short Circuit .......................Protected
Isolation ............................. Low voltage (< 48 V AC/DC)
Power Requirements
DC (3-9950-3, -5) .............. 24 VDC nominal (12 to 32 VDC,
Sensor Input Specications
Digital (S3L) Sensors .......Serial ASCII, TTL level, 9600 bps
Accuracy ..........................
Resolution........................1 µs
Repeatability ....................± 0.2% of reading
Power Supply
Rejection..........................No Eect ± 1 µA per volt
Short Circuit .....................Protected
Reverse Polarity ..............Protected
Shipping Weights
Base Unit ....................0.63 kg (1.38 lb)
9950-3 .....................1.0 kg (2.2 lb)
9950-5 .....................0.63 kg (1.38 lb)
Relay Module..............0.19 kg (0.41 lb)
Standards and Approvals
• CE, UL, CUL, WEEE
• RoHS Compliant
China RoHS (Go to www.gfsignet.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.
• Manufactured under ISO 9001, ISO 14001 and ISO 45001
+4.9 to 5.5 VDC @ 25 °C, regulated
±10% regulated). A UL60950-1 or
UL61010-1 certied power supply
must be used. Power supply shall
also be rated for operation at
4000 m (13,123 ft) altitude.
± 0.5% of reading max error @ 25 °C
Performance Specications
System Accuracy
• Primarily dependent upon the electrode.
System Response
• Primarily dependent upon the electrode. Controller adds
a maximum of 150 ms processing delay to the
electronics.
• Minimum update period is 500 ms.
• System response is tempered by the display rate, output
averaging.
GF 9950-3 Chlorine Controller
38
Graphical User Interface created with emWin licensed by SEGGER
Page 39
Specications
Binary Input Specications (3-9950.393-3)
Input Voltage Range
(without damage) .................. -5 VDC to 30 VDC
(no operation below 0 VDC)
Max. Voltage Rating .............30 VDC
Max. Current Rating ............. 6.0 mA
Maximum input voltage for
signal “O” (low or "0") ........ 1.5 VDC
Minimum input voltage for
signal “On” (high or "1") ........ 3.0 VDC
Maximum current draw for
signal “0” (low): ..................... <500 µA DC
Minimum current draw for
signal “1” (high): ................... 500 µA
Typical current draw for
signal “1” (high): ................... 6.0 mA at 30 VDC
4.8 mA at 24 VDC
2.4 mA at 12 VDC
1.0 mA at 5 VDC
Current Loop Specications (Internal and Modules)
Current Loop Out ........... ANSI-ISA 50.00.01 Class H
(Passive, external voltage required)
Voltage........................... 12 to 32 VDC, ±10% regulated. Use
UL60950-1 or UL61010-1 certied
power supply. Power supply shall
also be rated for operation at
4000 m (13,123 ft) altitude.
Max. Impedance: ........... 250 Ω @ 12 VDC
500 Ω @ 18 VDC
750 Ω @ 24 VDC
Span ..............................3.8 to 21 mA Adjustable, reversible
Isolation .........................Low voltage (< 48 VAC/DC)
Update Rate ..................100 mS nominal
Zero ............................... 4.0 mA factory set; user programmable
from 3.8 to 5.0 mA
Full Scale .......................
Power Supply Rejection ± 1 µA per V
Actual update rate determined by sensor type
Short circuit and reverse polarity protected
Adjustable span, reversible
Error Condition ..............
Test Mode ...................... Increment to desired current
Analog Outputs .............. 2 Passive
20.00 mA factory set; user
programmable from 19.0 to 21.0 mA
Selectable error condition 3.6 or 22 mA
or None
(range 3.8 to 21.00 mA)
Relay Specications
Dry-Contact Relays
Type ......................................SPDT
Form ..................................... C
Max. Voltage Rating .............30 VDC or 250 VAC
Max. Current Rating ............. 5 A resistive
Solid-State Relays, Optional Relay Module
Type ......................................SPDT
Form ..................................... C
Max. Voltage Rating .............30 VDC or 30 VAC
Max. Current Rating ............. 0.050 A
Hysteresis ............................. Adjustable (absolute in
Engineering Units)
On Delay............................... 9999.9 seconds (max.)
Test Mode ............................. Set On or O
Maximum Pulse Rate ........... 300 pulses/minute
Input Types
• Chlorine (FCl and ClO2) input via the Digital (S³L) output
from the 2650 Amperometric Electronics
• pH input via the Digital (S3L) output from the
2751-7 pH Electronics
Sensor Types:
Chlorine and pH
Current Outputs
• Two 4 to 20 mA output in base unit
• Linear scaling
• Reverse span
• Selectable error mode: 3.6 mA or 22 mA or None
• Test Output mode: allows testing of the current output
• Adjustable 4 to 20 mA end points
• Two 4 to 20 mA Output in base unit
• Two or Four 4 to 20 mA Outputs in optional Modules
Display Ranges:
FCI ..............................0 to 20 ppm
ClO2 ............................0 to 2 ppm
pH ...............................-1.00 to 15.00 pH
pH ...............................-99 °C to 350 °C (-146 °F to 662 °F)
GF 9950-3 Chlorine Controller
39
Page 40
Ordering Information
9950 Transmitter Base Unit:
Dual Channel, Multi-Parameter and DC Power
Mfr. Part NoCodeDescription
3-9950-3159 001 954
3-9950-5159 001 9569950 Base Unit - DC Powered, 2 Channel Input, 2 Passive 4 to 20 mA Output
Optional Modules
3-9950.393-1159 310 268Relay Module with 4 Mechanical Relays
3-9950.393-2159 310 269Relay Module with 2 Mechanical and 2 Solid State Relays
3-9950.393-3159 310 270Relay Module with 2 Mechanical Relays and 4 Binary Inputs
3-9950.395-M159 001 905Modbus Module
3-9950.398-2159 001 848Dual Channel Output Module, 4 to 20 mA
9950 Base Unit - DC Powered, 2 Channel Input, 2 Passive 4 to 20 mA Output,
2 Active 4 to 20 mA Output (Module) 2 Mechanical Relays, 4 Binary Inputs
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.gfsignet.com • or call (in the U.S.): (800) 854-4090
For the most up-to-date information, please refer to our website at www.gfsignet.com