GF Signet 9950 User manual

*3-9950.090*
Signet 9950 Dual Channel Transmitter
3-9950.090 Rev. C 05/17
3-9950-1, -2
Operating Instructions (see pg. 10)
Description
Compatibility
The 9950 is compatible with all GF Signet
products listed in the column to the right.
pH and ORP electrodes require the
Signet 2750 or 2751 DryLoc®Sensor
Electronics (sold separately).
Conductivity/Resistivity
measurement requires the Signet
2850 Conductivity/Resistivity Sensor
Electronics (sold separately).
English
The 9950 Dual Channel Transmitter is a two channel controller that can support
two sensors of same or different types in one instrument. The sensor types
supported by the 9950 are Signet Flow, pH/ORP, Conductivity/Resistivity, Salinity,
Temperature, Pressure, Level, Dissolved Oxygen, and devices that transmit a
4 to 20 mA signal with the use of the 8058 iGo®Signal Converter.
The 9950 includes advanced features such as derived functions, advanced
multiple relay modes, and timer based relay functions. Derived functions allows
for the control of a relay or current loop with the sum, delta (difference), or ratio
of two measurements. Multiple relay modes allow up to three signals to be used
for the control of a single relay, and can be any combination of analog and binary
inputs. The timer relay modes allow a relay to be activated on a repeating basis
from every minute to once every 30 days. Weekday timer mode allows a relay to
be energized, on a specific day or days of the week at a specific time.
The 9950 supports the following relay modules:
• Four Channel Mechanical Relay Module
• Two Mechanical and Two Solid State Relay Module
• Two Mechanical Relays and Four Binary Inputs Module
Sensor
Model
Freq
Output
Digital (S3L)
Output
Requires
8058
515/8510 X
525 X
2000 X
2100 X
2250 X
2350 X
2450 X
2507 X
2536/8512 X
2537-5 X
2540 X
2551 XX
2552 XX
U1000 XX
U3000 XX
U4000 XX
2260 X
2270 X
2290 X
2291 X
2610-41 X
2724-2726 X
2734-2736 X
2750/2751 X
2756-2757 X
2764-2767 X
2774-2777 X
2819-2823 X
2839-2842 X
2850 X
• English
• Deutsch
• Español
• 中文
NOTE:
Prior to installation, Check
www.gfsignet.com for
software updates to your
device. See page 48, Field
Software Update, for more
information.

29950 Transmitter
Warning / Caution / Danger
Indicates a potential hazard. Failure to follow all warnings
may lead to equipment damage, injury, or death.
Electrostatic Discharge (ESD) / Electrocution Danger
Alerts user to risk of potential damage to product by ESD
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 Signet products.
NOTE / Technical Notes
Highlights additional information or detailed procedure
• 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 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 other than specified 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.
• Wiring connections to this product should only be
performed by qualified personnel.
• Do not use unit if front panel is cracked or broken.
Safety Information
Start-Up Guide
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.)
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-____ S/N ___________________
Relay Module 3-9950.393-____ S/N ___________________
Installation
Panel Mount Installation
panel
V+
FREQ
DATA
GND
V+
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
USB
RELAY MODULE MODULE 1
MODULE 2
Made in U.S. from U.S. and imported parts
DC POWER
12-32 VDC
0.50A Max
DC Power
12-32 VDC
0.03A Max
Loop Voltage
N
L
100-240 VAC~
50-60 Hz, 24VAMax
Quick-clip
gasket on
front side
of panel
mounting
bracket
Allowable panel thickness 2.36 mm (0.093 in.) to 33 mm (1.31 in.)
3-9950-2
Before commissioning the device, make sure the supply voltage matches the voltage specifications on the nameplate.
For DC power input and Loop current regulated voltage, use UL60950-1 or UL61010-1 certified power supply. Power
supply shall also be rated for operation at 4000 m altitude. Provide a suitable switch or circuit breaker the installation.
This switch must be located close to the device (easily reached), and marked as a circuit breaker. The switch or circuit
breaker to be used for power disconnect shall be certified to IEC 60947-1 and IEC 60947-3, per IEC 61010-1, Clause
6.11.4.2. Overcurrent protection (rated > 10 A) is required for the power cable.

3
9950 Transmitter
The 9950 requires regulated
12 to 32 VDC, ±10% regulated
(24 VDC nominal) or 100-
240 VAC at 50-60 Hz from
an external power supply (not
supplied).
Maximum current draw is:
500 mA with DC power
24 VA with AC power
Terminal Identification
Start-Up Guide
Prepare the transmitter installation location. If the back of the transmitter is difficult to access when
installed, wire the removable terminal blocks first, then install it completely.
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop 1+
Loop 1–
Loop 2+
Loop 2–
PWR+
PWR–
CH2 CH1
USB
RELAY MODULE MODULE 1
MODULE 2
Made in U.S. from U.S. and imported parts
N
L
100-240 VAC~
11-24 VDC
DC Power Terminals
Current Loop Outputs
Channel 1 Input
(Frequency/S3L)
AC Power Terminals
Channel 2 Input
(Frequency/S3L)
DC Power Terminal 3-9950-1 or 3-9950-2
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 certified power supply. Power supply shall also be rated for operation at 4000 m altitude.
AC Power Terminal 3-9950-2 Only
Required by the instrument
• 100-240 VAC at 50-60 Hz, 24 VA MAX
Relay Module
Dependent on model
• 3-9950.393-1 Four mechanical relays rated at 5A, 250 VAC or 5A, 30 VDC
• 3-9950.393-2 Two mechanical relays, 5A 250 VAC or 30 VDC, and two solid state relays rated at 50 mA, 30 VAC or 30 VDC
• 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
Channel 1 and Channel 2: Digital (S3L)/Frequency Input
• 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 or silver wire from paddle wheel flow sensor)
Loop Outputs
• Two Passive 4 to 20 mA current loop outputs 12 - 32 VDC, ±10% regulated (30 mA Max)
USB Interface
• Software updates will be provided through the USB port

49950 Transmitter
Sensor Wiring
Start-Up Guide
Loop
+V
FREQ
+V
FREQ
DATA
GND
Loop
CH2 CH1
+V
FREQ
DATA
GND
DC POWER
Loop
+V
FREQ
+V
FREQ
DATA
GND
Loop
CH2 CH1
+V
FREQ
DATA
GND
DC POWER
Loop
+V
FREQ
+V
FREQ
DATA
GND
Loop
CH2 CH1
+V
FREQ
DATA
GND
DC POWER
FLOW
FLOW
515/8510 525 2536/8512 2540
2000 2100 2507
Black
Red
Silver
9950 Frequency
X
No connection
Black
Red
White
2537-5
S1 S2
Blk Red Shld -+
9950 S3L Inputs
X
No connection
* 2551-XX-21, -41
Display Magmeter
2250 2350 2450
2551* 2750/2751 2850 Black
Red
White
9950 S3L Inputs
X
No connection
Shield
Blue
Green
Brown No
connection
9950 S3L Inputs
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
DC POWER
+V
FREQ
DATA
GND
Black
White
Shield
PWR +
PWR –
3-2610-41
+
–Power Supply
12 to 32 VDC
Technical Notes:
• Wiring terminals on the 2537 are rated for 16 to 22
AWG wires.
• The cable must be 7 mm to 10 mm in diameter
(0.275 in. to 0.394 in.) to seal properly in the
liquid-tight connector.
• The conduit ports have ½-inch NPT threads.
After routing the cables, seal the port with a liquid-tight
conduit connector (3-9000.392-1) or with conduit.
• The 2537 models connects to the 9950 via the
Digital (S3L) output.
Technical Notes:
• See corresponding product manuals for maximum
cable length.
• Maintain cable shield through cable splice.
• Route sensor cable away from AC power lines.
• Select "Yes" to CH # Flow 515/525 when setting up
the input on the 9950. On the 515/8510 and 525
installations, connect the silver (shield) wire to earth
ground in case of EMI noise interference.
Technical Notes:
• Sensor dependent, see sensor manual for maximum
cable length.
• Maintain cable shield through cable splice.
• Route sensor cable away from AC power lines.
• Connect the silver (shield) wire to earth ground in case
of EMI noise interference.
NOTE: The 2850 has no SHIELD wire.
Technical Notes:
The wiring of the 3-2610-41 is non-standard:
• RED is 12 to 24 VDC
• WHITE is Data
• BLACK is VDC Ground (PWR -)
• A jumper MUST be installed between PWR- and
S3L GND.
• Use of the 3-2610-31 requires iGo Converter, refer to
the 2610 Dissolved Oxygen sensor manual.
NOTE: 3-2610-41 only.

5
9950 Transmitter
2551-XX-11
Blind Magmeter
Black
Red
9950 S3L Inputs
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
DC POWER
+V
FREQ
DATA
GND
X
No connection
White
Shield
Black
Red
White
9950 Frequency
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
DC POWER
+V
FREQ
DATA
GND
X
No connection
Shield
3
4
Frequency
S L
3
3
4
Input Wiring for 2551 and 2552 sensors
• Either Frequency or Digital (S3L) may be used.
• Signet recommends configuring these sensors with the Digital (S3L) output to
display reverse flow (negative numbers).
• Input type is selected by choosing between “SENSOR FREQ” and "SENSOR S3L" in
the FLOW sensor type INPUT menu (see page 29).
Frequency Output Technical
Notes (2551 & 2552):
• The frequency output will
be displayed as positive
flow regardless of the
flow direction.
• 5 VDC power required by
the 2551 & 2552 is supplied
by the 9950. No additional
power is required.
• Connect the silver wire
(shield) to earth ground
in case of EMI noise
interference.
2552 Technical Notes:
• The 2552 outputs an open
collector frequency signal that
can be connected to the 9950
• Route sensor cable away
from AC power lines.
• Connect the silver (shield)
wire to earth ground in case
of EMI noise interference.
2551 Technical Notes:
• When the blue jumper
illustrated here is placed
over both pins, the 2551-
XX-11 (Blind Magmeter)
outputs an open collector
frequency signal. When
the jumper is removed (or
placed over one pin for
storage) the 2551-XX-11
outputs a digital (S3L)
signal (recommended).
Sensor Wiring
Start-Up Guide
Only in case of EMI interference.
See Frequency Output Technical Notes (2551 & 2552) at right.
2552
Black
Brown
White
9950 S3L Inputs
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
DC POWER
+V
FREQ
DATA
GND
Black
Brown
White
9950 Frequency
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
DC POWER
X
No
connection
+V
FREQ
DATA
GND
Blue
Blue
X
No connection
Shield Shield

69950 Transmitter
Power Wiring
Start-Up Guide
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
PWR+
PWR–
CH2 CH1
DC POWER
DC power optional
Loop1+
Loop1–
Loop2+
Loop2–
Made in U.S. from U.S. and imported par
N
L
100-240 VAC~ 50-60 Hz, 24VA Max
Neutral
Line
100-240 AC
+
–
Black
Red Power Supply
12 to 32VDC
+
–
Red
Black
PLC or Recorder
Loop Input
4 to 20 mA
+
–
PLC or Recorder
Loop Input
4 to 20 mA
Red
Black
3-9950-1 and 3-9950-2
3-9950-2
WARNING
DO NOT connect AC power to the DC version
THE 3-9950-1 MUST BE POWERED BY
12 - 32 VDC at 0.5 A.
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2 CH1
DC POWER
and imported par
+
–
Black
Red Power Supply
12 to 32 VDC
+
–
Red
Black
PLC or Recorder
Loop Input
4 to 20 mA
+
–
PLC or Recorder
Loop Input
4 to 20 mA
Red
Black
Caution:
Electrical shock hazard exists!
Never connect live AC lines to the instrument.
External DC Power is
required for the current
loops.
CAUTION
Keep AC power separate from
sensor and signal wiring to prevent
interference and damage to the
9950 Transmitter.
Caution:
For DC power input and loop current regulated
voltage, use UL60950-1 or UL61010-1 certified
power supply. Power supply shall also be rated
for operation at 4000 m altitude.

7
9950 Transmitter
Start-Up Guide
Relay Module Wiring
3-9950.393-1 and 3-9950.393-2
Relay 1: The alarm is OFF during normal operation, and will
go ON when relay energizes according to 9950
Relay settings.
Relay 4: The valve is ON during normal operation, and will
go OFF when relay energizes according to 9950
Relay settings.
NO = normally open (closes when energized)
NC = normally closed (opens when energized)
Mechanical Relays Rating: 5A 250 VAC, 5A 30 VDC
Solid State Relays Rating: 50 mA 30V AC/DC
(for 309950.393-2 relay 1 & 2)
3-9950.393-3
The alarm is OFF during normal operation, and will go ON when the
relay energizes according to 9950 Relay settings.
Binary input 4 will be ON when the tank level is above the level
switch, Binary Input 4 will be OFF when the tank level is below the
level switch.
Binary Input Ratings
Maximum Input voltage
(without damage) 30 VDC
Minimum Input voltage
(without damage)
-5 VDC
(no operation below 0 VDC)
Maximum input voltage for
signal “Off” (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 ADC
Minimum current draw
for signal “1” (high) 500 A
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
• 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.
NO 1
N/C 1
COM 1
NO 2
N/C 2
COM 2
RELAY 1
RELAY 2
RELAY 3
RELAY 4
NO 3
N/C 3
COM 3
NO 4
N/C 4
COM 4
AC or DC
power
Valve
Flow
AC or DC
power
ALARM!
3-9950.393-1
N/O 1
N/C 1
COM 1
SW4
SW COM
N/O 2
N/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
AC or DC
power
ALARM!
Level
LevelSwitch
9950.393 Internal Power
N/O 1
N/C 1
COM 1
SW4
SW COM
N/O 2
N/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
AC or DC
power
ALARM!
Level
LevelSwitch
DC power +
-
9950.393 External Power
3-9950.393-3 Internal Power
3-9950.393-3 External Power
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.
INT
EXT
Power
Switch
EXT
INT

89950 Transmitter
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.
Operation
Start-Up Guide
ENTER
4
DATE FORMAT
100% SOLUTION
NAME
SAVING
24 HOUR
AM/PM
GERMAN
LANGUAGE
LANGUAGE
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
FLOW
pH
ORP
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
Easy Set Up can be
entered by setting
either or both channels
to Factory and cycling
power on the 9950.
This menu operation sets up the 9950 for basic function:
1. Select desired language using the [UP] and [DOWN] 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 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.

9
9950 Transmitter
Start-Up Guide
Password
Password Overview
The password is required to start editing. Once entered correctly, this password will not be needed for subsequent uses, until the
menu system is exited. The password will be required when the menu system is re-entered.
Your choice of password (STD or CODE) is selected in the Options Mode.
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 modified in the Options mode.
ENTER
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 key
Access menus
Save changes
Operation
ENTER
4
0 0.0 0 9 9.9 9
0 0.0 0 9 9.9 9
CH1
9999.9
9999.9
9999.9
9999.9
CH2
UOM
UOM
UOM
UOM
Relay 1
Indicator LED
Relay 2
Indicator LED
Backlight Sensor
(do not block)
Bar Graph
Channel 1
display area
Menu Navigation Keys
Relay 3
Indicator LED
Relay 4
Indicator LED
Units of Measure
(GPM, pH, sec, %, etc.)
Numeric
Values
or labels
Bar Graph
Channel 2
display area
Numeric
Values
or labels Units of Measure
(GPM, pH, sec, %, etc.)

10 9950 Transmitter
Operating Instructions
Thank you for purchasing the Signet line of Georg
Fischer measurement products.
If you would like to register your product(s), you can now
register online in one of the following ways:
• Visit our website www.gfsignet.com.
Under Service and Support click Product
Registration Form
• If this is a pdf manual (digital copy), click here
Refer to your local Georg Fischer Sales office 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 office or
distributor.
Product returned without a Service Form may not be
warranty replaced or repaired.
Signet products with limited shelf-life (e.g. pH, ORP,
chlorine electrodes, calibration solutions; e.g. pH buffers,
turbidity standards or other solutions) are warranted out
of box but not warranted against any damage, due to
process or application failures (e.g. high temperature,
chemical poisoning, dry-out) or mishandling (e.g. broken
glass, damaged membrane, freezing and/or extreme
temperatures).
Warranty Information Table of Contents
Product Registration
General Information .........................................................2
Safety Information/Installation..........................................2
Terminal Identification ......................................................3
Wiring ...............................................................................4
Sensor Wiring.............................................................4
Sensor Wiring.............................................................5
Power Wiring..............................................................6
Relay Module Wiring..................................................7
Operation .........................................................................8
Password ...................................................................9
Keypad Operation ......................................................9
Signal Type: 4 to 20 mA...........................................10
Warranty Information................................................10
Product Registration ................................................10
Table of Contents .....................................................10
Dimensions ..............................................................11
Module Installation ................................................... 11
Plug-In Modules .............................................................12
Relay Modules ...............................................................12
Signal Type: Frequency ................................................13
Signal Type: Digital (S3L) ..............................................13
Signal Type: 4 to 20 mA................................................14
Relay Functions .............................................................14
Relay Modes ............................................................15
Derived Functions ....................................................19
Menu System .................................................................20
Common Menu ........................................................21
Loop Menus .............................................................21
Relay Menu ..............................................................22
Option Menu.............................................................24
View Mode ...............................................................26
Sensor-Specific Menus..................................................28
Flow..........................................................................28
pH.............................................................................30
ORP..........................................................................32
Conductivity/Resistivity ............................................34
Pressure...................................................................36
Level/Volume............................................................38
Temperature .............................................................41
4 to 20 mA................................................................42
Salinity......................................................................44
Dissolved Oxygen ....................................................46
Field Software Update ...................................................48
Updating the 9950..........................................................48
Troubleshooting .............................................................49
Appendix ........................................................................51
Averaging .................................................................51
LOG Current Loop Output .......................................51
Custom Measurements............................................52
Calibration Procedures - pH.....................................56
Calibration Procedure - ORP ...................................58
Calibration Procedure - Conductivity/Resistivity......60
Calibration Procedure - Flow ...................................61
Calibration Error Messages .....................................62
USP Limits................................................................63
Maintenance.............................................................63
Map of 9950 Relay and Loop Sources ....................64
Specifications .................................................................65
Ordering Information ......................................................68