Model
Data Logging Conductivity/
TDS/Salinity Meter
SD-4307
Instruction
Manual
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Table of Contents
Features ...................................................................................................... 3
Specications .......................................................................................... 4-5
Instrument Description ............................................................................... 6
Operating Instructions ........................................................................... 7-11
Functionselection.................................................................................... 7
Conductivity Measurement ...................................................................... 7
ChangingtheAirvelocityunit ................................................................... 7
Manual Range ......................................................................................... 7
Zero Adjustment ...................................................................................... 8
TDS Measurement .................................................................................. 8
Salt Measurement ................................................................................... 8
Calibration ............................................................................................ 8-9
DataRecord(Max.,Min.reading) ............................................................ 9
BacklightON/OFF ................................................................................. 10
Datalogger ............................................................................................. 10
AutoDatalogger ...............................................................................10-11
ManualDatalogger ................................................................................ 11
CheckingtheTime ................................................................................. 11
CheckSamplingTimeInformation ......................................................... 11
SDCardDataStructure ......................................................................... 12
DataTransferfromSDcardtoComputer ............................................... 12
Advanced Settings ..............................................................................13-15
Set Clock Time ...................................................................................... 12
Setting the Decimal point on the SD Card.............................................. 13
Auto power OFF management ............................................................... 13
Set Beeper Sound ON/OFF ................................................................... 13
Select the Temperature unit to °C or °F ................................................. 13
Set sampling time .................................................................................. 14
SD memory card Format ....................................................................... 14
Setting the CD Temperature Compensation Factor ................................ 15
ESC ....................................................................................................... 15
PC Serial Interface .................................................................................... 16
System Reset ........................................................................................... 17
Battery Replacement ................................................................................ 17
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Features
• Multi-purpose meter, measuring Conductivity, TDS (Total dissolved
solids), and Salt
• Conductivity: 200µS/cm, 2mS/cm, 20mS/cm, 200mS/cm
• Salt: 0 to 12% salt (% weight)
• Conductivity measurement can select Temp. Coefcient of
Measurement Solution
• Real time SD memory card datalogger with a built-in clock and
calendar
• Sampling time set from 1 second to 9 hours
• Meter can switch to a Manual Datalogging
• No extra software needed, just plug the SD card into the computer
and it downloads directly to EXCEL
• SD card capacity: 1 GB to 16 GB
• Easy to read LCD with backlight
• Auto power off or manual power off
• Data hold, record max. and min. reading
• High accuracy microcomputer circuit
• Power by UM3/AA (1.5 V) x 6 batteries
• USB/RS232 Computer interface
• Separated probe for easy measurements of multiple environments
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Specifications
Circuit: Custom microprocessor LSI circuit
Display: 52 x 38 mm LCD with backlight
Conductivity Units: µS, mS
TDS Units: PPM
Salt Units: % (of weight)
Conductivity Probe: Carbon rod electrode
Auto Sampling Time: 1 second to 9 hours
Memory Card: SD memory card, 1 GB to 16 GB
Sampling Time of Display: Approx. 1 second
Data Output: USB/RS232 PC computer interface
Temperature Range: 0-50°C (0-122°F)
Resolution: 0.1°C/0.1°F
Accuracy: ±0.8°C/1.5°F
Operating Temperature: Meter: 0 to 50°C; Probe: 0 to 60°C
Operating Humidity: Less than 85% R.H.
Power Supply: UM3/AA (1.5 V) x 6 batteries
Weight: 515 g/1.13 lb
Dimensions: Meter: 177 x 68 x x45 mm (7.0 x 2.7 x 1.9")
Probe: 22 x 120 mm
Includes: Conductivity/TDS/Salt Probe
and a Hard Carrying Case
Optional accessories: 4G SD Card (SD-4GB)
USB Cable (USB-01
Power Adapter (AP-9VA-110V)
Data Acquisition Software (SW-U801-WIN)
Tripod (BS-6)
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Conductivity Specifications
Range Measurement Resolution Accuracy
200µS/cm 0 - 200µS/cm 0.1 µS
2mS/cm 0.2 – 2mS/cm 0.001mS
20mS/cm 2 – 20mS/cm 0.01mS
±(2% Full Scale
+1d) at 23 ± 5°C
200mS/cm 20 – 200mS/cm 0.1mS
TDS Specifications
Range Measurement Resolution Accuracy
200PPM 0 -132PPM 0.1 PPM
2,000PPM 132 - 1,320PPM 1PPM
±(2% Full Scale
20,000PPM 1,320 - 13,200PPM 10PPM
200,000PPM 13,200 - 132,000PPM 100PPM
Salt Specifications
Measurement Range: 0 to 12% Salt (% weight)
Resolution: 0.01% Salt
Accuracy: 0.5% Salt value
+1d)
at 23 ± 5°C
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Instrument Description
1. Display
2. Power & Backlight Button
3. Hold & ESC Button
4. REC & Enter
5. Mode & Up Button
6. Range & Down Button
7. Time Button
8. Logger, SET & Sampling Check
Button
9. Stand
10. Battery Compartment
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11. Battery Cover Screw
12. Tripod Fix Nut
13. Probe Socket
14. AC/DC 9V Power Adapter Input
Socket
15. Reset Button
16. USB/RS232 Output
17. SD Card Slot
18. Probe Plug
19. Probe Handle
20. Probe Sensor
6
Operating Instructions
Function selection
1) Turn on the meter by pressing the Power Button. To turn the meter
off, hold the Power Button for over 2 seconds.
2) The meter has 3 measuring functions to choose from:
Conductivity, TDS, and Salt.
When the meter is on, press and hold the Mode Button. The display will
ash "Cd", for Conductivity measurements, "tdS" for TDS measurements,
and "SALt" for Salt measurements. Release the Mode Button to choose
the displayed function. The meter's defaults are following:
Display Unit: Conductivity
Temperature Unit: °C
Temp. Compensation Factor: 2.0% per °C
Auto range: ON
Auto power off: ON
Datalogger Sampling Time: 2 seconds
Conductivity Measurement
1) When the meter is off, plug the Probe Plug into the Probe Socket,
then power on the meter by pressing the Power Button.
2) Select the "Cd" function (see Function Select).
3) Hold the Probe Handle and fully immerse the Probe Sensor into the
measuring solution. Shake the Probe to let the Probe's internal air
bubble drift out from under the sensing head. The top part of the
Display will show the conductivity mS (µS) values, and the lower
part of the Display will show the temperature value of the solution.
Manual Range
The meter is defaulted to Auto Range mode. Push the Range Button to
change the range from 200µS/cm, 2mS/cm, 20mS/cm, 200mS/cm and
Auto Range.
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Zero Adjustment
If the probe is not immersed in the measuring solution and the display
will not show a Zero Value. Press and hold the Up Button for about 10
seconds and the display will then show zero. The Zero function is only
valid for the 200µS range and not when the Zero Value is < 2.0µS.
TDS Measurement
1) When the meter is off, plug the Probe Plug into the Probe Socket,
then power on the meter by pressing the Power Button.
2) Select the "tdS" function (see Function Select)
3) Hold the Probe Handle and fully immerse the Probe Sensor into the
measuring solution. Shake the Probe to let the Probe's internal air
bubble drift out from under the sensing head. The Display will show
the Total Dissolved Solids value.
Salt Measurement
1) When the meter is off, plug the Probe Plug into the Probe Socket,
then power on the meter by pressing the Power Button.
2) Select the "SALT" function (see Function Select)
3) Hold the Probe Handle and fully immerse the Probe Sensor into the
measuring solution. Shake the Probe to let the Probe's internal air
bubble drift out from under the sensing head. The Display will show
the Salt value (% of weight).
Calibration
1) Prepare the optional standard conductivity solution
2) Install the Probe Plug into the Probe Socket
3) Power on the meter by pressing Power Button
4) Hold the Probe Handle and let the Sensing head get fully immersed
the calibration solution. Shake the probe to let the probe's internal
air bubble drift out from the sensing head. The display will show the
conductivity values.
continued...
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5) Press the REC Button and HOLD Button at the same time. The
display will show the symbol "Cd" and "CAL"
6) Press the Enter Button and the measuring value will show on both
the upper and lower Display. Use the Up and Down Buttons to
adjust the upper display value to be the exact same as the
standard conductivity value. Press the Enter Button to save the
calibration data and nish the calibration procedures.
NOTE: If you only intend to make a one point calibration, executing the
2mS/cm range (1.413mS Cal.) is enough. Multi-point calibration
procedures should execute the 2mS/cm range (1.413mS Cal.)
calibration at rst, then make other ranges (2mS/cm, 20mS/cm,
200mS/cm) after if necessary.
Data Record (Max., Min. reading)
The data record function records the maximum and minimum readings.
Press the REC Button once to start the Data Record function and a "REC"
symbol will appear on the display. With the "REC" symbol on the display:
1) Press the REC Button once, and a "REC. MAX." symbol along
with the maximum value will appear on the display. To delete the
maximum value, press the Hold Button once and the display will
show a "REC." symbol only and execute the memory function
continuously.
2) Press the REC Button again, and a "REC. MIN." symbol along
with the minimum value will appear on the display. To delete the
minimum value, press the Hold Button once, and the display will
show a "REC." symbol only and execute the memory function
continuously.
3) To exit the memory record function, press the REC button for 2
seconds. The display will revert to the current reading.
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Backlight ON/OFF
After powering the meter ON, the LCD Backlight will turn on automatically.
While taking measurements, press the Backlight Button and the LCD
Backlight will turn off. Press the Backlight Button once again to turn the
LCD Backlight back ON.
Datalogger
Preparation Before Executing the Datalogger Function:
1) Insert the optional SD card into the SD card socket.
2) Before you use an SD card with this meter for the rst time, it is
recommend to format the SD card. See Advanced Settings section
of this manual for instructions.
3) If this is the rst time the meter is used you need to adjust
the clock. See Advanced Settings section of this manual for
instructions.
4) Now you need to set the decimal format. The numerical data
structure downloaded to the SD card is defaulted used the "." as
the decimal, for example "20.6" "1000.53". But in certain countries
the "," is used as the decimal point, for example "20,6" "1000,53".
See Advanced Settings section of this manual for instructions on
how to change the Decimal Character.
Auto Datalogger (Set sampling time ≥1 second)
1) Start Datalogging; press the REC Button, and the "REC" symbol
will appear on the LCD screen, then press the Logger Button,
the "REC" symbol will ash while the measuring data and time
information is being saved in memory. To set the sampling time,
and to toggle the beeper sound on or off, refer to the Advanced
Settings section of this manual.
2) Pause the Datalogging; while Datalogging, if press the Logger
Button once. While paused, the "REC" symbol will stop ashing.
Press the Logger Button again to resume Datalogging, and the
"REC" symbol will begin to ash again.
continued...
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3) Stop Datalogging; while the Datalogger function is paused, press
the REC Button for 2 seconds. The "REC" symbol will disappear
indicating the Datalogging function has stopped.
Manual Datalogger (Set sampling time = 0 seconds)
1) Set sampling time is to 0 second; Press the REC Button, and the
"REC" symbol will appear on the LCD screen. Press the Logger
Button, and the "REC" symbol will ash once and one Beep
will sound, at the same time the measuring data along the time
information will be saved in memory. The lower Display will show
the Position (record) number, which is saved as well.
2) To Change the Position Number; press the Down Button and the
lower position number will ash on the display. Press the Up or
Down Buttons to set the Position Number (1 to 99) to help identify
the measurement location. The lower Display will show P x (x = 1 to
99). After the position number is selected, press the Enter Button to
conrm.
3) Stop Datalogging; press the REC Button for 2 seconds, and the
"REC" symbol will disappear indicating the Datalogging function
has stopped.
Checking the Time
During normal functions (not Datalogging), press the Time Check Button
and the lower LCD display will show the Year, Month/Date, Hour/Minute.
Check Sampling Time Information
During normal functions (not Datalogging), press the Sampling Button and
the lower LCD display will show the Sampling Time Information.
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SD Card Data Structure
1) The rst time the SD card is used in the meter, the SD card will
generate a folder: CDA01
2) The rst time you use the Datalogger, in the folder CDA01, a new
le name CDA01001.XLS will be created. The Datalogger will
use this le until the Data has reached to 30,000 rows. The meter
will then will generate a new le with a subsequent number, for
example CDA01002.XLS.
3) The folder CDA01 can hold 99.XLS les. When that number has
been reached, the meter will then will generate a new folder with
a subsequent number, for example CDA02. Max number of CDA-folders is 10.
Data Transfer from SD card to Computer (EXCEL Software)
1) After Datalogging, remove the SD card from the SD card slot.
2) Plug in the SD card into the Computer's SD card slot or insert the
SD card into the optional SD card adapter and connect to your
Computer. Turn your computer on and a folder will appear on your
desktop representing you SD card.
3) Open "Microsoft EXCEL". Download the EXCEL les from the SD
Card to the computer by opening up the SD folder and selecting
the desired EXCEL les, and drag-and-drop them onto your
Computer. Open the les with EXCEL (File – Open).
4) The EXCEL le will have the following column headers in this order:
Place (Position Number), Date (Year/Month/Day), Time (in 24h
clock), Value & Unit.
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Advanced Settings
During normal functions (not Datalogging), press and hold the SET Button
for 2 seconds to enter the "Advanced Setting" mode. Press the Next
Button scroll through eight main functions, shown on the lower display:
dAtE Set clock time (Year/Month/Date, Hour/Minute/Second)
dEC Set SD card Decimal character
PoFF Auto power OFF management
bEEP Set beeper sound ON/OFF
t-CF Select the temperature unit to °C or °F
SP-t Set sampling time (Hour/Minute/Second)
Sd F SD memory card Format
PEr C Set CD temperature compensation factor
ESC Exit Advanced Settings
While in the "Advanced Setting" function, press the Esc Button to exit and
to return to normal functioning.
Set Clock Time
1) When the lower display shows "dAtE", press the Enter Button.
Use the Up and Down Buttons to adjust the Year. After the desired
value is set, press the Enter Button to adjust the Month, Date, Hour,
Minute, and Second values.
2) After all the time values have been set the screen will jump to
"SD card Decimal character" setting screen. To exit "Advanced
Settings", press the Esc Button.
Note: After the time value is set, the internal clock will run even when
the power is off, if the battery is under normal conditions.
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Setting the Decimal point on the SD Card
1) When the lower display shows "dEC", use the Up or Down Buttons
to toggle between "bASIC" ("." Decimal Point) or "Euro" (","
Decimal Point).
2) After the Decimal point character has been selected, press the
Enter Button to save the setting as the default. To exit "Advanced
Settings", press the Esc Button.
Auto power OFF management
1) When the lower display shows "PoFF", use the Up or Down
Buttons to select the value "yES" (Enable Auto Power Off) or "no"
(Disable Auto Power Off.
2) After selecting "yES" or "no", press the Enter Button to save the
setting as the default. To exit "Advanced Settings", press the Esc
Button.
Set Beeper Sound ON/OFF
1) When the lower display shows "bEEP", use the Up or Down
Buttons to select "yES" (Beeper Sound is ON) or "no" (Beeper
Sound is OFF).
2) After selecting "yES" or "no", press the Enter Button to save the
setting as the default. To exit "Advanced Settings", press the Esc
Button.
Select the Temperature unit to °C or °F
1) When the lower display shows "t-CF", use the Up or Down Buttons to
select "C" (for °C) or "F" (for °F).
2) After selecting "C" or "F", press the Enter Button to save the setting as
the default. To exit "Advanced Settings", press the Esc Button.
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Set sampling time
1) When the lower display shows "SP-t", use the Up or Down Buttons to
adjust the value.
2) After the Sampling value is selected, press the press the Enter Button
to save the setting as the default. To exit "Advanced Settings", press
the Esc Button.
SD memory card Format
Please Note: Formatting the SD card erases all data from that SD card.
1) When the lower display shows "Sd F", use the Up or Down Buttons to
select "yES" (format the SD card) or "no" (do not format the SD card).
2) To format your SD card, select "yES" and press the Enter Button. The
Display will show "yES Enter", to conrm. Press the Enter Button to
conrm.
Setting the CD Temperature Compensation Factor
1) This function is only for the Conductivity (TDS) Mode to adjust the
probe's Temperature Compensation value in % per °C. The default
value is 2% per °C. When the lower display shows "PEr C", use the Up
or Down Buttons to select the upper value to the desired Temperature
Compensation.
2) After setting the Temperature Compensation Factor, press the Enter
Button to save. To exit "Advanced Settings", press the Esc Button.
ESC
When the lower display shows "ESC", press the Enter Button to nish the
Advanced Settings procedures and return to the normal measuring screen.
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PC Serial Interface
The instrument features an PC output via 3.5 mm terminal. The connector
output is a 16 digit data stream which can be utilized to the user's specic
application. An USB RS232 lead with the following connection will be
required to link the instrument with the PC serial input.
Meter (3.5mm Jack Plug) PC (9W "D" Connector)
Center Pin Pin 2
Ground/Shield Pin 5
The 16 digit data stream will be displayed in the following format:
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
D0 End Word
D1 to D4 Upper Display reading, D1= LSD, D4= MSB
D5 to D8 D5=? D6=? D7=? D8=?
D9 Decimal Point ( DP) for display
D10 D10 = 0
D11 D11 = 0
D12 D12 = 0
D13 D13 = 0
D14 D14 = 0
D15 Start Word
0 = No DP, 1 = 1 DP, 2 = 2 DP, 3 = 3 DP
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System Reset
If an error occurs, press the Reset Button with a Pin. If the Reset Button
does not x the error, please send in the unit to our Calibration Lab for
repair. E-mail info@reedinstruments.com for more information.
Battery Replacement
1) When the left corner of LCD display shows , it is necessary to
replace the battery
2) Loosen the screws of the Battery Cover and remove
3) Remove the batteries and replace with Six DC 1.5 V batteries
(UM3, AA, Alkaline/heavy duty)
4) Make sure the battery cover is properly secured after changing
the battery
For service or information on this or any other REED product, contact
REED Instruments at info@reedinstruments.com.
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