Lutron Electronics DO-5512SD User manual

SD card real time data logger
DISSOLVED OXYGEN
METER
Model : DO-5512SD
Your purchase of this
DISSOLVED OXYGEN
METER with SD CARD
DATA LOGGER marks a
step forward for you
into the field of
precision measurement.
Although this meter a
complex and delicate
instrument, its durable
structure will allow
many years of use if
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
3. FRONT PANEL DESCRIPTION.......................................5
4. DO ( Dissolved Oxygen ) MEASURING
and CALIBRATION PROCEDURE...................................7
4-1 Dissolved Oxygen measurement.............................7
4-2 Calibration............................................................
.
10
4-3 Probe maintenance................................................11
5. OTHER FUNCTION......................................................13
5-1 Data Hold.............................................................
.
13
5-2 Record ( Max./ Min. reading ).................................13
5-3 LCD Backlight ON/OFF...........................................
.
14
6. DATALOGGER.............................................................14
6-1 Preparation before execute datalo
gg
er function....................14
6-2 Auto Datalo
gg
er ( Set samplin
g
time 1 second )..............≧15
6-3 Manual Datalo
gg
er ( Set samplin
g
time = 0 second )...........
.
16
6-4 Check time information.......................................................17
6-5 Check samplin
g
time information.........................................17
6-6 SD Card Data structure.......................................................17
7. Saving data from the SD card to the computer..............19
8. ADVANCED SETTING...................................................21
9. POWER SUPPLY from DC ADAPTER..............................28
10. BATTERY REPLACEMENT...........................................28
11. SYSTEM RESET.........................................................28
12. RS232 PC SERIAL INTERFACE....................................29
13. OPTIONAL ACCESSORIES..........................................30
14. PATENT....................................................................31

1. FEATURES
* Precision Dissolved Oxygen measurement
* Dissolved oxygen : 0 to 20.0 mg/L.
* Dissolved oxygen meter use the polar graphic type
oxygen probe with temperature sensor, high precision
measurement for Dissolved Oxygen ( DO ) and
temperature measurement.
* Heavy duty dissolved oxygen probe, probe head can
connect with BOD bottle.
* DO use the automatic Temp. compensation.
* DO meter build in " % SALT " & " Mountain Height "
compensation value adjustment.
* Separate probe, easy for operation of different
measurement environment.
* Real time SD memory card Datalogger, it Built-in Clock
and Calendar, real time data recorder , sampling time set
from 1 sec to 8 hour 59 min. 59 sec.
* Manual datalogger is available ( set the sampling
time to 0 ), during execute the manual datalogger
function, it can set the different position ( 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, then user 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.
* 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.
1

* Wide applications: water conditioning, aquariums,
beverage, fish hatcheries, food processing, photography,
laboratory, paper industry, plating industry, quality
control, school & college, water conditioning.
2. SPECIFICATIONS
Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 52 mm x 38 mm
LCD with green backlight ( ON/OFF ).
Measurement Dissolved Oxygen
Air oxygen ( for reference only )
Measurement Dissolved Oxygen 0 to 20.0 mg/L ( liter ).
& Range Oxygen in Air 0 to 100.0 %.
Temperature 0 to 50 .℃
Resolution Dissolved Oxygen 0.1 mg/L.
Oxygen in Air 0.1 % O2 .
Temperature 0.1 .℃
Accuracy Dissolved Oxygen ± 0.4 mg/L.
(23± 5 )℃Oxygen in Air ± 0.7% O2.
Temperature ± 0.8 /1.5 .℃℉
Probe Temperature 0 to 50 ,℃
Compensation Automatic
& Adj. Salt 0 to 50 % Salt
Height ( M. T.) 0 to 8900 meter
Datalogger Auto 1 sec to 8 hour 59 min. 59 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.
2

Oxygen The polarographic type oxygen probe with
Probe temp. sensor.
Memory Card SD memory card. 1 GB to 16 GB.
Advanced * SD memory card Format
setting * Set clock time ( Year/Month/Date,
Hour/Minute/ Second )
* Set sampling time
* Auto power OFF management
* Set beep Sound ON/OFF
* Decimal point of SD card setting
* Set temperature unit to or℃℉
* Set DO salt% compensation value
* Set DO height ( meter ) compensation value
* Set DO height ( feet ) compensation value
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
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 0 to 50 .℃
Temperature
Operating Less than 85% R.H.
Humidity
Power Supply *
A
Alkaline or heavy duty DC 1.5 V battery
( UM3, AA ) x 6 PCs, or equivalent.
*
A
DC 9V adapter input. ( AC/DC power
adapter is optional ).
3

Power Current Normal operation ( w/o SD card save
data and LCD Backlight is OFF) :
Approx. DC 14 mA.
When SD card save the data and LCD
Backlight is OFF) :
Approx. DC 37 mA.
*
A
If LCD backlight on, the power
consumption will increase approx.
12 mA.
Weight Meter 489 g/1.08 LB.
Probe 335 g/0.74 LB
Dimension Meter 177 x 68 x 45 mm
(7.0 x 2.7x 1.9 inch)
Probe 190 mm x 28 mm Dia.
( 7.5" x 1.1" Dia. )
Accessories * Oxygen probe ( OXPB-11 )............1 PC.
Included * Hard carrying case ( CA-06 ).........1 PC.
* Operation manual.........................1 PC.
* Spare Probe head with Diaphragm
OXHD-04.....................................
.
2 set
* Probe-filling Electrolyte
OXEL-03......................................
.
1 set
Optional *Oxygen probe.................... OXPB-11
probe and *Spare Probe head with
accessories Diaphragm set...................
.
OXHD-04
*Probe-filling Electrolyte.......OXEL-03
*RS232 cable.......................UPCB-02
*USB cable..........................USB-01
*Data Acquisition software
..................................SW-U801-WIN
*AC to DC 9V adapter
@ Above specification tests under the environment RF Field Strength
less than 3 V/M & frequency less than 30 MHz only.
4

3. FRONT PANEL DESCRIPTION
5

3-1 Display
3-2 Power Button ( Backlight Button )
3-3 Hold Button ( ESC Button )
3-4 REC Button ( Enter Button )
3-5 Button▲
3-6 Button ( Function Button )▼
3-7 Time Button
3-8 Logger Button ( SET Button, Sampling check )
3-9 Stand
3-10 Battery Compartment/Cover
3-11 Battery Cover Screw
3-12 Tripod Fix Nut
3-13 DO Probe Socket
3-14 DC 9V Power Adapter Input Socket
3-15 Reset Button
3-16 RS-232 Output Terminal
3-17 SD card socket
6

4. DO ( Dissolved Oxygen )
MEASURING and CALIBRATION
PROCEDURE
4-1 Dissolved Oxygen measurement
Fig. 2
1)Prepare the Oxygen Probe ( standard probe, DOPB-11 ),
install the " Probe Plug " ( 4-1, Fig. 2 ) into the
" DO Socket " ( 3-13, Fig. 1 ).
2)Power on the meter by pressing " Power Button "
( 3-2, Fig. 1 ) once.
7

Calibration at first
!
If it is the first time to use the Dissolved
Oxygen meter or after a certain period to
use the meter again, then it should to
execute the calibration procedures at the
first. For the measurement precisely
consideration, it recommend to make the
calibration before each measurement.
Calibration procedure, refer to chapter 4-2,
page 10.
4)a.Immersed the probe to a depth at least 10 cm of
the measured liquid in order for the probe to be
influenced by the temperature & automatic
temperature compensation to take place.
b.As for the thermal equilibrium to occur between the
probe & the measurement sample must be allowed
to pass, which usually amounts to a few minutes if
the Temp. difference between the two is only
several Celsius degrees.
5)a.In order to measure the dissolved oxygen content in
any given liquid, it is sufficient to immerse the tip of
the probe in the solution, making sure that velocity
of the liquid coming into contact with the probe is at
least 0.2 - 0.3 m/s or to shake the probe.
b.During laboratory measurements, the use of a
magnetic agitator to ensure a certain velocity in the
fluid is recommended. In this way, errors due to the
diffusion of the oxygen present in the air in the
solution are reduced to a minimum.
8

6)Display will show the Dissolved Oxygen values ( mg/L )
at the same time the bottom display will show the Temp.
value of the measured solution.
7)Rinsed the probe accurately with normal tap water after
each series of measurement.
Oxygen in the air
During the DO measurement, press the " Function Button "
( 3-6, Fig. 1 ) once, the display unit will show " %O2 "
instead of " mg/L " , it show the air Oxygen value for
reference.
@
Press the " Function Button " once again, the Display
unit will return to " mg/L ".
Change the Temp. unit to ℉
If intend to change the Temp. unit from to ,℃℉
please refer to chapter 8-7, page 25.
"% Salt" compensation value adjustment
If intend to change the % Salt compensation value,
refer chapter 9-8, page 26.
"Height" compensation value adjustment
If intend to change the Height compensation value,
refer to chapter 8-9, 8-10, page 26 page 27.
9

4-2 Calibration
1)Install the " Probe Plug " ( 4-1, Fig. 2 ) into the
" DO Socket " ( 3-13, Fig. 1 ).
2)Power on the meter by pressing " Power Button "
( 3-2, Fig. 1 ) once.
Press the " Function Button " ( 3-6, Fig. 1 ) once, to
let Display unit will show " %O2 " instead of " mg/L ".
3)Wait for approx. 5 minutes at least until the
display reading values become stable & no
fluctuation.
4)Use the two fingers to press the " REC Button " ( 3-4,
Fig 1 ) and HOLD Button " ( 3-3, Fig. 1 ) at the same
time, the display will show the following screen as
example, release the both fingers.
20.9
CAL
5)Press the " Enter Button " , the Display value will count
from 30 to 0, then return to normal measuring screen
and finish the calibration procedures. The complete
calibration procedures will take 30 seconds
approximately.
Press the " Function Button " ( 3-6, Fig. 1 ) once,
to let Display unit to return " mg/L ".
Calibration Consideration :
a.As the oxygen in air is 20.9 % typically, so use
the environment air 02 value for quick &
precise calibration.
b
.
Please process calibration procedures under
wide and ventilating environment for best effect.
10

4-3 Probe maintenance
User first time to use the meter
Intend to let the DO probe keep the best
condition, when user receive the Oxygen Probe,
it should fill the Probe's Electrolyte at first.
User already use the probe for a certain
period :
Whenever user can not calibrate the meter
properly or the meter's reading value is not stable,
please check the oxygen probe to see if the
electrolyte in the probe head container is run out
or the diaphragm ( probe head with diaphragm
set) exist problem ( dirty ). If yes, please fill the
electrolyte or change the " Probe head with
diaphragm set " and make the new calibration.
The consideration of Diaphragm ( probe
head with diaphragm set
The oxygen probe component is the thin Teflon
diaphragm housed in the tip of the probe. The
diaphragm is permeable by the oxygen molecules but
not by the considerably larger molecules contained in
the electrolyte. Due to this characteristic, the oxygen
may diffuse throughout the electrolyte solution
contained in the probe, and its concentration may be
quantified by the measurement circuit.
11

Probe-filling Electrolyte,
OXEL-03
1)Unscrew the " Probe head " ( 5-3, Fig 3 ).
2)Pour out the old Electrolyte from the
container of the " Probe head ".
3)Fill the new Electrolyte ( OXEL-03 )
into the container of the " Probe
head " .
4)Screw the " Probe head " ( 5-3, Fig 3 )
into the probe body.
5)When not use the
probe, should insert Fig. 3
the " Probe head "
into the " Probe
protection cover " 5-1 Probe handle
( 4-5, Fig. 2 ) 5-2 Temp. sensing metal
5-3 Probe head
12

5. OTHER FUNCTION
5-1 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.
5-2 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 along with the maximum value
will appear on the display.
If intend to delete the maximum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then the
display will show the " REC. " symbol only & execute
the memory function continuously.
b)Press the " REC Button " ( 3-4, Fig. 1 ) again, the
" REC. MIN. " symbol along with the minimum value
will appear on the display.
If intend to delete the minimum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then
the display will show the " REC. " symbol only &
execute the memory function continuously.
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

5-3 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.
6. DATALOGGER
6-1 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 " ( 3-17, 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 8-1, page 22.
c. Time setting
If the meter is used at first time, it should to adjust the
clock time exactly, please refer chapter 8-2, page 22.
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
8-6, page 25. 14

6-2 Auto Datalogger ( Set sampling time 1 second )≧
a. Start the datalogger
Press the " REC Button ( 3-4, Fig. 1 ) once , the LCD will
show the text " REC ", then press the " Logger Button "
( 3-8, Fig. 1 ), the bottom text " DATALOGGER " will
flashing, 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 8-3
page 23.
*
How to set the beeper sound is enable, refer to
Chapter 8-5, page 24.
b. Pause the datalogger
During execute the Datalogger function , if press the
" Logger 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 text of " DATALOGGER " will be no flashing.
Remark :
If press the " Logger Button " ( 3-8, Fig. 1 ) once again
will execute the Datalogger again, the bottom text of "
DATALOOGER " will flashing .
c. Finish the Datalogger
During pause the Datalogger, press the " REC Button "
( 3-4, Fig. 1) continuously at least two seconds, the " REC "
indication will be disappeared and finish the Datalogger.
15

6-3 Manual Datalogger ( Set sampling time = 0
second )
a. Set sampling time is to 0 second
Press the " REC Button ( 3-4, Fig. 1 ) once , the LCD will
show the text " REC ", then press the " Logger Button " (
3-8, Fig. 1 ) once, the bottom text " DATALOGGER " 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. The lower Display will show
the Position ( Location ) no. and saved into the SD card too.
Remark :
During execute the Manual Datalogger, press the " ▲
Button " ( 3-5, Fig, 1 ) the lower no. ( position no. ) will
flashing. 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
Press the " REC Button " ( 3-4, Fig. 1) continuously at
least two seconds, the " REC " indication will be
disappeared and finish the Datalogger.
16

6-4 To check the time information
During the normal measurement screen ( not execute
the Datalogger ),
1)If press " Time Button " ( 3-7, Fig. 1 ) once , the lower
LCD display will present the time information of
Hour/Minute/Second ( h.m.s ) in the lower Display.
2)If press " Time Button " ( 3-7, Fig. 1 ) once again , the
lower LCD display will present the time information of
Year/Month/Date ( yy.mm.dd ) in the lower Display.
3)If press " Time Button " ( 3-7, Fig. 1 ) once again ,
the LCD will return to normal screen.
6-5 Check sampling time information
During the normal measurement screen ( not execute the
Datalogger ), If press " Sampling Button " ( 3-8, Fig. 1 )
once , the lower LCD display will present the Sampling
time information in second unit.
6-6 SD Card Data structure
1)When the first time, the SD card is used into the meter,
the SD card will generate a route :
DOA01
17

2)If the first time to execute the Datalogger,
under the route DOA01\, will generate a new
file name DOA01001.XLS.
After exist the Datalogger, then execute again,
the data will save to the DOA01001.XLS until
Data column reach to 30,000 columns, then
will generate a new file, for example DOA01002.XLS
3)Under the folder DOA01\, if the total files more
than 99 files, will generate anew route, such as
DOA02\ ........
4)The file's route structure :
DOA01\
DOA01001.XLS
DOA01002.XLS
.....................
DOA01099.XLS
DOA02\
DOA02001.XLS
DOA02002.XLS
.....................
DOA02099.XLS
DOAXX\
.....................
.....................
Remark :
XX : Max. value is 10.
18