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GF 9950-10 Six Channel Transmitter
Displays the value and the temperature
below. This is the normal display and
does not time out.
Setup Checklist
1. Make sure SALINITY sensor type is selected
(Refer to System Setup Menu, page 11).
2. Set Cell Constant. Default is 10.0
3. Set the Temperature Units (°C or °F).
4. Calibrate the Temperature element.
5. Calibrate the Conductivity sensor.
6. Set Last Cal Date and initials.
7. If LOOP is used, set the minimum and maximum 4 to 20 mA setpoints.
8. Select source for Relay output (SAL or TEMP).
9. If applicable, set up Relay Functions for your application.
Requires prepared calibration solution with a value as close to the
applications being measured.
Salinity
CH1
81.9
77
85.9
76
CH2
PPT
°F
PPT
°F
0.0000
0.0000
80.000
80.000
VIEW Mode Menu
View Measurement 3 displays the primary value and the channel name. This screen does not time out.
Displays the equivalent conductivity value in millisiemens.
CH1
81.9
SALINITY
CH2
50.0
SALINITY
PPT
PPT
0.0000
0.0000
80.000
80.000
CONDUCTIVITY
CH1 25 mS
INPUT Menu
Press ENTER to start assigning sensors to each channel.
Use the
▲
and
▼
arrow to go to any of the six channels directly.
NOTE: Display only available when the 9950 is in FACTORY mode.
Press the
►
arrow, use the
▲
and
▼
arrow to select which TYPE of sensor will be assigned to the
channel(s) (1-6).
Choose SALINITY press ENTER to save sensor type.
Press the
►
arrow, using the
▲
or
▼
to select the input source to the channel.
Sources list will only contain SALINITY sensors or modules.
To change sensor selection after it's been assigned, change the source to NONE, then the sensors
can be reassigned.
English, French, German, and Spanish Only. If desired, a custom name can be entered.
Enter 17-character string.
Default = SALINITY
Enter cell constant of sensor. Select 10.0, 1.0 or CUSTOM.
Default = 10.0
Enter the precise cell constant from the certi
fi
cate provided with your sensor or from the information
label on the sensor. Shown if CELL CONSTANT = CUSTOM.
SETUP
CHANNEL 2
CH 2 FACTORY
FACTORY
T
TYPE
CH 2 SALINITY
NONE
SOURCE
ENTER
CHANNEL 2
SALINITY
NAME
CH 2 SALINITY
C
CELL CONSTANT
10.0
CH 2 SALINITY
CUST CELL CONST
T
50.0000
NOTE:
The Salinity reading is calculated from the Conductivity and Temperature measurements. Salinity is only as accurate as the
measurements used for calculation. Salinity can be displayed in PPT (parts per thousand) or PSU (practical salinity units). The units
are equivalent, and both use the Practical Salinity Scale found in Standard Methods for the Examination of Water and Wastewater
for calculation. Because they have an impact on the Salinity measurement, Conductivity and Temperature must be calibrated before
Salinity.