Lutron Electronics CD-4318SD User manual

SD card real time data logger
TDS ( Total dissolved solids ), Salt
'20 uS/200 uS/2 mS/20 mS/200 mS
CONDUCTIVITY METER
Model : CD-4318SD
Y
our purchase of this
CONDUCTIVITY METER
with SD CARD
DATA LOGGER marks a
step forward for you
into the field o
f
precision measurement.
Although this meter a
complex and delicate
instrument, its durable
structure will allow
many years of use i
f
proper operating
techniques are
developed. Please read
the following
instructions carefully
and always keep this
manual within easy
reach.
OPERATION MANUAL

TABLE OF CONTENTS
1. FEATURES.........................................................................................
1
2. SPECIFICATIONS........................................................................ 2
2-1 General Specifications................................................................ 2
2-2 Electrical Specifications........................................................................
4
3. FRONT PANEL DESCRIPTION...........................................................................
6
4. FUNCTION SELECTION.......................................................................
7
5. CONDUCTIVITY/TDS MEASURING and
CALIBRATION PROCEDURE....................................................................
8
5-1 Conductivity measurement..........................................................
8
5-2 TDS ( PPM ) measurement................................................. 9
5-3 Calibration................................................................................ 9
6. SALT MEASURING and calibration PROCEDURE............................
12
6-1 Salt measurement..........................................................................
12
6-2 Calibration............................................................................................
12
7. OTHER FUNCTION.................................................................... 13
7-1 Data Hold.........................................................................................
13
7-2 Record ( Max./ Min. reading )....................................................................
13
7-3 LCD Backlight ON/OFF....................................................................
14
8. DATALOGGER................................................................................ 14
8-1 Preparation before execute datalogger function...............................................................................
14
8-2 Auto Datalogger ( Set sampling time ≧
1 second ).......................
15
8-3 Manual Datalogger ( Set sampling time = 0 second ).....................
16
8-4 Check time annd sampling time information...............................................................................
16
8-5 SD Card Data structure...............................................................................
17
9. Saving data from the SD card to the computer............................ 18
10. ADVANCED SETTING...............................................................................
20
11. POWER SUPPLY from DC ADAPTER.....................................................
25
12. BATTERY REPLACEMENT.............................................................
25
13. SYSTEM RESET.................................................................................
25
14. RS232 PC SERIAL INTERFACE.....................................................
26
15. OPTIONAL ACCESSORIES......................................................... 28
16. PATENT..................................................................................... 29

1. FEATURES
* One meter for multi purpose operation :
Conductivity, TDS ( Total dissolved solids ), Salt measurement.
* Conductivity : 20 uS/ 200 uS/2 mS/20 mS/200 mS.
* Salt : 0 to 12 % salt ( % weight ).
* Conductivity measurement can select Temp. Coefficient
of measurement solution.
* ATC for the conductivity measurement.
* Separate probe, easy for operation of different
measurement environment.
* Real time SD memory card Datalogger, built-in Clock
and Calendar, sampling time can set from 1 sec to 3600 seconds
* Manual datalogger is available, during execute the
manual datalogger function, it can set the different
location no. ( position 1 to position 99 ).
* Innovation and easy operation, computer is not need to
setup extra software, after execute datalogger, just take
away the SD card from the meter and plug in the SD card
into the computer, it can down load the all the measured
value with the time information ( year/month/date/
hour/minute/second ) to the Excel directly, thenuser can
make the further data or graphic analysis by themselves.
* SD card capacity : 1 GB to 16 GB.
* LCD with green light backlight, easy reading.
* It can default auto power off or manual power off.
* Data hold, record max. and min. reading.
* Microcomputer circuit, high accuracy.
* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.
* RS232/USB PC COMPUTER interface.
* Wide applications: water conditioning, aquariums,
beverage, fish hatcheries, food processing, photography,
laboratory, paper industry, plating industry, quality
control, school & college, water conditioning.
1

2. SPECIFICATIONS
2-1 General Specifications
Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 52 mm x 38 mm
LCD with green backlight ( ON/OFF ).
Measurement * Conductivity ( uS, mS )
Function * TDS ( Total Dissolved Solids, PPM )
* Salt ( % Weight )
* Temperature ( ℃,℉)
Temperature Automatic from 0 to 60 ℃(32 - 140 ℉),
Compensation with temperature compensation factor
variable between 0 to 5.0% per C.
Conductivity Pt glass electrode for long life. Hight performance
Probe for the low conductivity ( pure water ) measurement.
Datalogger Auto 1 sec to 3600 sec.
Sampling Time @ Sampling time can set to 1 second,
Setting range but memory data may loss.
Manual Push the data logger button
once will save data one time.
@ Set the sampling time to
0 second.
@ Manual mode, can also select the
1 to 99 position ( Location ) no.
Memory Card SD memory card. 1 GB to 16 GB.
Advanced * Set clock time (Year/Month/Date,Hour/Minute/ Second )
setting * Set sampling time
* Auto power OFF management
* Set beep Sound ON/OFF
* Decimal point of SD card setting
* SD memory card Format
* Set temperature unit to ℃or ℉
* Set CD temperature compensation factor
* Set probe CELL K Value
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
2

Sampling Time Approx. 1 second.
of Display
Data Output RS 232/USB PC computer interface.
* Connect the optional RS232 cable
UPCB-02 will get the RS232 plug.
* Connect the optional USB cable
USB-01 will get the USB plug.
Operating Meter 0 to 50 ℃.
Temperature Probe 0 to 60 ℃.
Operating Less than 85% R.H.
Humidity
Power Supply
* AC/DC power adapter is optional.
Alkaline or heavy duty DC 1.5 V battery
( UM3, AA ) x 6 PCs, or equivalent.
* AC/DC power adapter is optional.
DC 9V adapter input. ( AC/DC power
adapter is optional ).
Power Current Normal operation ( w/o SD card save
data and LCD Backlight is OFF) :
Approx. DC 6 mA.
When SD card save the data and LCD
Backlight is OFF) :
Approx. DC 37 mA.
* AC/DC power adapter is optional.
If LCD backlight on, the power
consumption will increase approx.
12 mA.
Weight 489 g/1.08 LB.
Dimension Meter 177 x 68 x 45 mm
(7.0 x 2.7x 1.9 inch)
Probe Round,
22 mm Dia. x 120 mm length.
Accessories * Instruction manual.............................. 1 PC
Included * Conductivity/TDS/Salt pt glass probe,
CDPB-04.................................... 1 PC
*
Hard carrying case ( CA-06 )..................................
1 PC
3

Optional * 1.413 mS Conductivity Standard
Accessories Solution................................ CD-14
SD memory card ( 2 GB )
AC to DC 9V adapter.
USB cable, USB-01.
RS232 cable, UPCB-02.
Data Acquisition software,SW-U801-WIN.
2-2 Electrical Specifications (23±5
℃
℃℃
℃
)
Conductivity ( uS, mS )
Range Measurement Resolution Accuracy
20 uS 0 to 20.00 uS 0.01 uS
200 uS 0 to 200.0 uS 0.1 uS
2 mS 0.2 to 2.000 mS 0.001 mS ±(2% F.S.+1d)
20 mS 2 to 20.00 mS 0.01 mS * F.S. -
200 mS 20 to 200.0 mS 0.1 mS full scale
* Temperature Compensation :
Automatic from 0 to 60 ℃( 32 - 140 ℉), with temperature
compensation factor variable between 0 to 5.0% per C.
* The accuracy is specified under measurement value ≦100 mS.
* mS - milli Simens * @ 23±5℃
TDS ( Total Dissolved Solids )
Range Measurement Resolution Accuracy
20 PPM 0 to 13.20 PPM 0.01 PPM
200 PPM 0 to 132 PPM 0.1 PPM
2,000 PPM 132 to 1,320 PPM 1 PPM ±(2% F.S.+1d)
20,000 PPM 1,320 to 13,200 PPM 10 PPM * F.S. -
200,000 PPM 13,200 to 132,000 PPM 100 PPM full scale
* Temperature Compensation :
Automatic from 0 to 60 ℃( 32 - 140 ℉), with temperature
compensation factor variable between 0 to 5.0% per ℃.
* The accuracy is specified under measurement value ≦66,000 PPM.
* PPM - parts per million * @ 23±5℃
4

Temperature
Function Measuring Range Resolution Accuracy
℃0 ℃to 60 ℃0.1 ℃±0.8 ℃
℉32 ℉to 140 ℉0.1 ℉±1.5 ℉
* @ 23±5℃
Salt
Measurement 0 to 12 % salt ( % weight ).
Range
Resolution 0.01 % salt.
Accuracy ± 0.5 % salt value
5

3. FRONT PANEL DESCRIPTION
Fig.1
3-1 Display
3-2 Power Button ( Backlight Button )
3-3 Hold Button
3-4 REC Button
3-5 Range Button ( ▲Button )
3-6 Function Button ( ▼Button )
3-7 Time Button (SET Button)
3-8 Enter Button ( Logger Button )
3-9 Stand
3-10 Battery Compartment/Cover
3-11 Battery Cover Screw
3-12 Tripod Fix Nut
3-13 Probe Socket
3-14 DC 9V Power Adapter Input Socket
3-15 Reset Button 3-18 Probe Handle
3-16 RS-232 Output Terminal 3-19 Sensing head
3-17 SD card socket 3-20 Probe Plug
6

4. FUNCTION SELECTION
1) Power ON the meter by pressing and holding the " Power
Button " ( 3-2, Fig. 1 )for at least 1.5 seconds .
*Pressing the " Power Button " ( 3-2, Fig. 1 )
continuously and > 1.5 seconds again will turn off the
meter.
2) The meter can select 3 kind Mode as :
a.
Conductivity measurement
b.
TDS measurement
c.
Salt measurement
pressing and holding the " FUNCTION Button " ( 3-6, Fig. 1 )
continuously , Display will show the following text in sequence :
C
D
Conductivity measurement
TD
S
TDS measurement
SAL
T
Salt measurement
Until the Display show the desired mode the meter will
execute this FUNCTION with default.
7

5. CONDUCTIVITY/TDS MEASURING
and CALIBRATION PROCEDURE
The meter default function are following :
* The display unit is set to conductivity ( uS, mS ).
* The temperature unit is set to ℃.
* Temp. compensation factor is set to 2.0% per C.
* Auto range.
* Auto power off disable.
* The sampling time of data logger function is
2 seconds.
Fig. 2
5-1 Conductivity measurement
1) Prepare the Conductivity Probe ( CDPB-04, standard
accessory, included ), install the " Probe Plug " ( 3-20,
Fig. 1) into the " Probe Socket " ( 3-13, Fig. 1 ).
2) Power on the meter by pressing and holding " Power Button "
( 3-2, Fig. 1 ) for at least 1.5 seconds .
Select the Meter's measurement FUNCTION to " CD "
( Conductivity measurement ), refer to chapter 4, page 7 .
3) Hold the " Probe Handle " ( 3-18, Fig. 1 ) by hand
and let the " Sensing head " ( 3-19, Fig. 1 )
immersed wholly into the measured solution. Shake
the probe to let the probe's internal air bubble drift
out from the sensing head.
Display will show the conductivity mS ( uS ) values.
at the same time the left bottom display will show the
Temp. value of the measured solution.
Manual range operation
The meter is default to be used for the auto range
mode. by pressing and holding the " Range Button " ( 3-5, Fig. 1 )
continuously in sequence will change the range from 20uS ,
200 uS, 2 mS , 20 mS, 200 mS and auto range.
8

Change the Temp. unit to
℉
℉℉
℉
If intend to change the Temp. unit from ℃to ℉, please
refer to chapter 10-7 page 23.
Change the Temp. Coefficient Factor
The default Temp. compensation factor value of the
measurement solution is to 2.0% per ℃. If intend to
change it, please refer to chapter 10-8, page 24 .
Zero adjustment
If the probe not immerse the measurement solution and
display not show zero value, pressing the " HOLD Button "
( 3-3, Fig. 1 ) continuously at least 10 seconds will let
display show zero. The zero function only valid for the
20 uS range and the not zero value is < 2.0 uS.
5-2 TDS ( PPM ) measurement
The measuring procedures are same as above
5-1 Conductivity ( uS, mS ) measurement,
except to change the display unit from uS, mS to PPM.
The detail procedures please refer chapter 4, page 7 .
5-3 Calibration
conductivity Calibration
1) Prepare the standard conductivity solution ( optional )
For example :
2 mS range calibration solution :
1.413 mS Conductivity Standard Solution, CD-14
200 uS range calibration solution :
80 uS Conductivity Standard Solution
20 mS range calibration solution :
12.88 mS Conductivity Standard Solution
or other Conductivity Standard Solution
2) Install the " Probe Plug " ( 3-20, Fig. 1 ) into the
" CD Socket " ( 3-13, Fig. 1 ).
9

3) Power on the meter by pressing " Power Button "
( 3-2, Fig. 1 ) once.
4) Hold the " Probe Handle " ( 3-18, Fig. 1) by hand
and let the " Sensing head " ( 3-19, Fig. 1 )
immersed wholly into the measured solution. Shake
the probe to let the probe's internal air bubble drift
out from the sensing head.
Display will show the conductivity mS ( uS ) values.
5) Use the two fingers to press the " ▲Button " ( 3-5, Fig. 1 ) " ,
and " ▼Button " ( 3-6, Fig. 1 ) at the same
time. the display will show the following screen as
example(Fig. a), release the both fingers , then Press the
" Enter Button " ( 3-8, Fig. 1 ) , the display will show
the following screen as example (Fig. b).
CD
CAL Fig. a CAL Fig. b
6) Press the " Enter Button " ( 3-8, Fig. 1 ), the measuring
value will present on both upper and lower Display.
Use "▲Button " ( 3-5, Fig. 1 ), " ▼Button " ( 3-6, Fig. 1 )
to adjust the up display value exact same as the standard
conductivity value. Press the " Enter Button " ( 3-8. Fig. 1 )will
save the calibration data and finish the calibration procedures.
Standard value
1.318 1.413
1.318 1.318
*
If only intend to make the one point calibration,
just execute the 2 mS range ( 1.413 mS Cal. )
is enough.
*
Multi-points calibration procedures should
execute the 2 mS range ( 1.413 mS Cal. )
calibration at first, then make other ranges
(20 uS range, 20 mS range or 200 mS range )
calibration procedures following if necessary.
10

Temprature Calibration
1) Install the " Probe Plug " ( 3-20, Fig. 1 ) into the
" CD Socket " ( 3-13, Fig. 1 ).
2) Power on the meter by pressing " Power Button "
( 3-2, Fig. 1 ) once.
3) Hold the " Probe Handle " ( 3-18, Fig. 1) by hand
and let the " Sensing head " ( 3-19, Fig. 1 )
immersed wholly into the measured solution. Shake
the probe to let the probe's internal air bubble drift
out from the sensing head.
Display will show the conductivity mS ( uS ) and Temprature values.
5) Use the two fingers to press the " ▲Button " ( 3-5, Fig. 1 ) " ,
and " ▼Button " ( 3-6, Fig. 1 ) at the same time. the display
will show the following screen as example(Fig. a), release the
both fingers , then Press the " Enter Button " ( 3-8, Fig. 1 ) ,
the display will show the following screen as example (Fig. b).
and press the " ▲Button " ( 3-5, Fig. 1 ) once . the display will
show the following screen as example (Fig. c).
CD TC
CAL CAL CAL
Fig. a Fig. b Fig. C
6) Press the " Enter Button " ( 3-8, Fig. 1 ), the measuring
value will present on both upper and lower Display.
Use "▲Button " ( 3-5, Fig. 1 ), " ▼Button " ( 3-6, Fig. 1 )
to adjust the up display value exact same as the standard
Temprature value. Press the " Enter Button " ( 3-8. Fig. 1 )will
save the calibration data and finish the calibration procedures.
24.5 25.0 Standard value
24.5 24.5
11

6. SALT MEASURING and
CALIBRATION
6-1 Salt measurement
1) Prepare the Probe ( CDPB-04, same probe as the
conductivity measurement, refere to Fig. 1, page 6 ),
install the " Probe Plug " ( 3-20, Fig. 1 ) into the "
Probe Socket " ( 3-13, Fig. 1 ).
2) Power on the meter by pressing and holding " Power Button "
( 3-2, Fig. 1 ) for at least 1.5 seconds .
Select the Meter's measurement FUNCTION to " SALT", refer
to Chapter 4, page 7 .
3) Hold the " Probe Handle " ( 3-18, Fig. 1 ) by hand
and let the " Sensing head " ( 3-19, Fig. 1 )
immersed wholly into the measured solution. Shake
the probe to let the probe's internal air bubble drift
out from the sensing head.
Display will show the Salt values ( % weight ).
6-2 Calibration
If the conductivity range already make the calibration
completely then the Salt measurement is not necessary to
make the calibration again.
12

7. OTHER FUNCTION
7-1 Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
display a " HOLD " symbol.
Press the " Hold Button " once again will release the data
hold function.
7-2 Data Record ( Max., Min. reading )
1) The data record function records the maximum and
minimum readings. Press the " REC Button " ( 3-4, Fig.
1 ) once to start the Data Record function and there
will be a " REC. " symbol on the display.
2) With the " REC. " symbol on the display :
a)
Press the " REC Button " ( 3-4, Fig. 1 ) once, the
" REC. MAX. " symbol and the maximum value
will appear on the display.
b)
Press the " REC Button " ( 3-4, Fig. 1 ) again, the
" REC. MIN. " symbol and the minimum value
will appear on the display.
b)
Press the " REC Button " ( 3-4, Fig. 1 ) again, the
" REC. " symbol and the REC value will appear
on the display.
c)
To exit the memory record function, just press the
" REC " button for 2 seconds at least. The display will
revert to the current reading.
13

7-3 LCD Backlight ON/OFF
After power ON, the " LCD Backlight " will light
automatically. During the measurement, press the
" Backlight Button " ( 3-2, Fig. 1 ) once will turn OFF the
" LCD Backlight ".
Press the " Backlight Button " once again will turn ON the
" LCD Backlight " again.
8. DATALOGGER
8-1 Preparation before execute datalogger function
a. Insert the SD card
Prepare a " SD memory card " ( 1 GB to 16 GB, optional ),
insert the SD card into the " SD card socket " ( 3-12, Fig. 1 ).
The front panel of the SD card should face against the
down case.
b. SD card Format
If SD card just the first time use into the meter, it
recommend to make the " SD card Format " at first. ,
please refer chapter 10-6, page 23.
c. Time setting
If the meter is used at first time, it should to adjust the
clock time exactly, please refer chapter 10-1, page 20.
d. Decimal format setting
The numerical data structure of SD card is
default used the " . " as the decimal, for
example "20.6" "1000.53" . But in certain
countries ( Europe ...) is used the " , " as the
decimal point, for example " 20, 6 "
"1000,53". Under such situation, it should
change the Decimal character at first, details
of setting the Decimal point, refer to Chapter
10-5, page 22.
14
8-2 Auto Datalogger ( Set sampling time
≧
≧≧
≧
1 second )

a. Start the datalogger
Press the " LOG Button ( 3-8, Fig. 1 ) > 1.5 seconds
continuously, the LCD will show the text of " LOGGER "
indecator and flashing per sampling time, at the same
time the measuring data along the time information will
be saved into the memory circuit.
Remark :
*
How to set the sampling time, refer to Chapter 10-2 ,
page 21 .
*
How to set the beeper sound is enable, refer to
Chapter 10-4, page 22 .
b. Pause the datalogger
During execute the Datalogger function, if press the
" LOG Button " ( 3-8, Fig. 1 ) once will pause the
Datalogger function ( stop to save the measuring data
into the memory circuit temporally ). In the same time
the " LOGGER " symbol will stop flashing.
Remark :
If press the " LOG Button " ( 3-8, Fig. 1 ) once again
will execute the Datalogger again, the " LOGGER "
symbol will flashing.
c. Finish the Datalogger
During execute the Datalogger function, press the
" LOG Button ( 3-8, Fig. 1 ) > 1.5 seconds continuously
again will finish the Datalooger function, the " LOGGER "
text will be disappeared and finish the Datalogger function.
15
8-3 Manual Datalogger ( Set sampling time = 0

second )
a. Set sampling time is to 0 second
Press the " LOG Button ( 3-8, Fig. 1 )>1.5 second, the LCD
will show the indecator " LOGGER " and " Position no. " symbol
then press the " LOG Button " ( 3-8, Fig. 1 ) once , the
" LOGGER " symbol will flashing once and Beeper will sound
once at the same time the measuring data along the time
information will be saved into the memory circuit .
Remark :
During execute the Manual Datalogger, it can use the " ▲
▲▲
▲
Button " ( 3-5, Fig. 1) or " ▼
▼▼
▼Button " ( 3-6, Fig. 1 ) to
set the measuring position ( 1 to 99, for example room 1
to room 99 ) to identify the measurement location , the
lower Display will show P x ( x = 1 to 99 ).
b. Finish the Datalogger
During execute the Datalogger function, press the " LOG
Button ( 3-8, Fig. 1 ) > 1.5 seconds continuously again will
finish the Datalooger function, the Position no. " PXX " will
be disappeared and finish the Datalogger. function.
least two seconds, the " LOGGER " indication will be
disappeared and finish the Datalogger.
8-4 To check the time and sampling time information
During the normal measurement ( not execute the
Datalogger ), If press " Time " ( 3-7, Fig. 1 ) )
once , the LCD display will present the time
information of Year/Month, Date/Hour, Minute/Second
and the Sampling time information .
16
8-5 SD Card Data structure

1) When the SD card is used into the meter, the SD card
When the first time, the SD card is used into the meter,
the SD card will generate a route :
CDB01
2)
If the first time to execute the Datalogger,
under the route CDB01\, will generate a new
file name CDB01001.XLS.
After exist the Datalogger, then execute again,
the data will save to the CDB01001.XLS until
Data column reach to 30,000 columns, then
will generate a new file, for example CDB01002.XLS
3)
Under the folder CDB01\, if the total files more
than 99 files, will generate anew route, such as
CDB02\ ........
4)
The file's route structure :
CDB01\
CDB01001.XLS
CDB01002.XLS
.....................
CDB01099.XLS
CDB02\
CDB02001.XLS
CDB02002.XLS
.....................
CDB02099.XLS
CDBXX\
.....................
.....................
Remark :
XX : Max. value is 10.
17

9. Saving data from the SD card
to the computer ( EXCEL software )
1) After execute the Data Logger function, take away the
SD card out from the " SD card socket " ( 3-17, Fig. 1 ).
2) Plug in the SD card into the Computer's SD card slot
( if your computer build in this installation ) or
insert the SD card into the " SD card adapter ". then
connect the " SD card adapter " into the computer.
3) Power ON the computer and run the " EXCEL software ".
Down load the saving data file ( for example the file
name : CDB01001.XLS, CDB01002.XLS ) from the SD
card to the computer. The saving data will present into
the EXCEL software screen ( for example as following
EXCEL data screens ) , then user can use those EXCEL
data to make the further Data or Graphic analysis
usefully.
EXCEL data screen ( for example )
18