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 :
CD Conductivity measurement
TDS
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
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