MRC DO-5519 User manual

1,600 point data logger, RS232, AC/DC adapter
auto calibration
DISSOLVED
OXYGEN METER
Model : DO-5519 Your purchase of this
DISSOLVED OXYGEN
METER marks a step
forward for you into the
field of precision
measurement.
Although this METER is
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
3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone] [e-mail]
MRC.11.21

ATTENTION :
Fill the Probe's Electrolyte at first.
Intend to keep the DO probe under
the best condition, when user receive
the DIGITAL OXYGEN METER along
the PROBE, it should fill the
Probe's Electrolyte at first.
` Probe-fillin
g
Electrolyte
Probe head with Diaphragm set
The procedures that to fill the Probe's
Electrolyte, refer the chapter 8
" PROBE MAINTENANCE ", page 13 .

TABLE OF CONTENTS
1. FEATURES.............................................................................. 1
2. SPECIFICATIONS.................................................................... 2
3. FRONT PANEL DESCRIPTION..................................................
.
4
3-1 Display............................................................................. 4
3-2 Power/ESC/Send button.................................................... 4
3-3 FUNC/HOLD button ( Send quit/ button )........................▲4
3-4 REC/Enter button..............................................................4
3-5 Settin
g
/Lo
gg
er button ( button )...................................
.
▼4
3-6 Probe input socket............................................................ 4
3-7 DC 9V adapter socket.......................................................
.
4
3-8 RS-232 output terminal..................................................... 4
3-9 Battery compartment/Cover.............................................. 4
3-10 Battery cover screws....................................................... 4
3-11 Oxy
g
en Probe handle...................................................... 4
3-12 Temperature sensor........................................................ 4
3-13 Probe head with diaphra
g
m set........................................4
3-14 Protection cover for probe head....................................... 4
3-15 Oxy
g
en probe plu
g
.........................................................
.
4
4. MEASURING PROCEDURE....................................................... 6
4-1 Calibration........................................................................6
4-2 Dissolved Oxy
g
en ( DO) measurement .............................. 7
4-3 Oxy
g
en in Air ( O2) measurement .....................................9
4-4 Temperature measurement...............................................
.
9
4-5 Data Hold......................................................................... 9
4-6 Data Record ( Max., Min. readin
g
)....................................
.
9
4-7 Data Lo
gg
er.....................................................................
.
10
5. ADVANCED ADJUSTMENT PROCEDURE....................................12
5-1 Hei
g
ht Value Settin
g
.........................................................
.
13
5-2 Salt Value Settin
g
.............................................................
.
13
5-3 Chan
g
e the Temp , unit.............................................℃℉ 14
5-4 Auto power ON/OFF..........................................................14
5-5 Chan
g
e the data lo
gg
er samplin
g
time...............................
.
15
5-6 To show the balance data numbers in the memory.............
.
15
5-7 Clear the existin
g
savin
g
data from the memory.................
.
15
5-8 Code enterin
g
for the further calibration usa
g
e...................16
6. SEND THE DATA OUT FROM THE METER................................. 16
7. RS232 PC SERIAL INTERFACE.................................................
.
17
8. PROBE MAINTENANCE............................................................19
9. BATTERY REPLACEMENT........................................................ 21
10. OPTIONAL ACCESSORIES......................................................22

1. FEATURES
* This Digital Oxygen Meter is supplied with a
polarographic type probe with an incorporated Temp.
sensor which serves for precise Dissolved Oxygen ( DO )
and Temp. measurement.
*Applications for Aquarium, Medical research, Agriculture,
Fish hatcheries, Laboratory, Water conditioning, Mining
industry, Schools & Colleges, Quality control...
* Heavy duty dissolved oxygen probe, probe head size
can connect with BOD bottle
* Separate probe with 4 meters cable.
* Automatic Temp. compensation from 0 to 50 for sensor.℃
* Build in advanced setting procedures, it can adjust the
" % SALT " & " Height " compensation value.
* Microprocessor circuit assures high accuracy and provides
special functions and features.
* Multi-display, show Dissolved oxygen & Temp. at the
same time.
*RS 232 PC serial interface.
* Build in temperature , measurement.℃℉
*LCD with two display, easy readout.
*Manual and auto data logger, with flexible sampling
time selection, can save max. 1,600 reading data.
*Power function can default to auto off or manual off.
*Temperature unit can default to or .℃℉
*Microcomputer circuit, intelligent function, high accuracy.
*Records Maximum and Minimum readings with recall.
*Data hold function for freezing the desired value.
*Build in the input socket for DC 9V power adapter.
*RS232 PC serial interface.
* Use the durable, long-lasting components, including a
heavy duty & compact ABS-plastic housing case.
1

2. SPECIFICATIONS
Display LCD size : 44 mm x 29 mm.
Dual function LCD
Circuit Custom one-chip of microprocessor LSI
circuit.
Measurement Dissolved Oxygen 0 to 20.0 mg/L ( liter ).
& Range Oxygen in Air 0 to 100.0 %.
T
emperature 0 to 50 .℃
Dissolved Oxygen 0.1 mg/L.
Resolution Oxygen in Air 0.1 % O2 .
T
emperature 0.1 .℃
A
ccuracy Dissolved Oxygen ± 0.4 mg/L.
(23± 5 )℃Oxygen in Air ± 0.7% O2.
* For reference only
T
emperature ± 0.8 /1.5 .℃℉
Sensor
T
he polarographic type oxygen probe with
Structure an incorporated temperature sensor.
Probe
T
emperature 0 to 50 ,℃
Compensation
* Automatic adj.
and Adjustment Salt * Manual adj. 0 to 39 %Salt (% Weight)
Height * Manual adj. 0 to 3,900 meter
Memory Records Maximum, Minimum readings with
Recall recall.
Power of
f
A
uto power off saves battery life, or manual
off by push button.
Data Output RS 232 PC serial interface.
Sampling Time Manual Push the data logger button once
of Data Logger will save data one time.
* Set sampling time to 0 second.
Auto 1, 2, 5, 10, 30, 60, 600, 1800,
3600 seconds.
Data Logger Max. 1,600-point Data logger
number
Data Hold Freeze the display reading.
Sampling Time Approx. 1 second.
of display
2

Data Output RS 232 PC serial interface.
Operating 0 to 50 .℃
Temperature
Operating Less than 80% RH.
Humidity
Power Supply 006P DC 9V battery ( Alkaline or Heavy duty
type ) or DC 9V adapter input.
* AC/DC power adapter is optional.
Power Current Approx. DC 6.2 mA.
Weight 446 g/0.98 LB. * Include probe and batterry.
Dimension Main instrument:
135 x 60 x 33 mm.
Oxygen probe :
190 mm x 28 mm Dia. ( 7.5" x 1.1" Dia. )
Probe's cable length : 4 meters.
Accessories Oxygen probe ( OXPB-11 )..............1 PC.
Included Soft carrying case ( CA-05A )..........1 PC.
Operation manual...........................1 PC.
Spare Probe head with Diaphragm
OXHD-04....................................... 2 PCs.
Probe-filling Electrolyte
OXEL-03........................................ 1 PC.
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
*Data logger software...........SW-DL2005
*Hard carrying case..............
.
CA-06
*AC to DC 9V adapter
3

3. FRONT PANEL DESCRIPTION
Fig. 1
4

Fig. 2
3-1 Display
3-2 Power/ESC/Send button
3-3 FUNC/Hold button ( Send quit/ button )▲
3-4 REC/Enter button
3-5 Setting/Logger button ( button )▼
3-6 Probe input socket
3-7 DC 9V adapter socket
3-8 RS-232 output terminal
3-9 Battery compartment/Cover
3-10 Battery cover screws
3-11 Oxygen Probe handle
3-12 Temperature sensor
3-13 Probe head with diaphragm set
3-14 Protection cover for probe head
3-15 Oxygen probe plug
5

4. MEASURING PROCEDURE
4-1 Calibration
Before the measurement, the meter should be processed
the following calibration procedures :
1)Connect the " Oxygen probe plug " ( 3-15, Fig. 2 )
into the " Probe input socket " ( 3-6, Fig. 1 ).
2)Power on the instrument by pushing the " Power Off/On
button " ( 3-2, Fig. 1 ).
The " Display " ( 3-1, Fig. 1 ) will show the
" O2% " and the " Temp. " value as example :
21.4
26.4 ℃% O2
The upper display ( %O2 display ) value will
increase, wait for approx. 3 minutes at least
until the upper display reading values become
stable & no fluctuation.
Press the " Hold button " ( 3-3, Fig. 1 ) once, the
" Display " ( 3-1, Fig. 1 ) will show the " Hold "
indicator, then following press the " REC button "
( 3-4, Fig. 1 ) once, the Display will show :
30 Count down from
CAL 30 to 0 and " End "
6

The text " CAL " will flash, the upper value will
count down from 30 to 0 and " End " , then show as :
20.9
26.4 ℃% O2
The upper display will show the values exactly
same as 20.9 or 20.8. ( As the oxygen in air is
20.9 % typically, so use the environment air 02
value for quick & precise calibration).
Now the calibration procedures are finished !
Calibration Consideration :
Please process calibration procedures
under wide and ventilating
environment for best effect.
4-2 Dissolved Oxygen ( DO) measurement
1)After the meter be calibrated ( above procedure 4-1 ),
the meter is ready for measurement.
2)Press the " FUNC button " ( 3-3, Fig. 1 ) continuously
at least two seconds, the display indicator will change
from " % O2 " change to " mg/L ".
3)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 automatic temperature
compensation circuit..
7