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DISSOLVED OXYGEN
CONTROLLER/MONITOR
Model : PDO-8220
Your purchase of this DISSOLVED OXYGEN CONTROLLER
/MONITOR MONITOR marks a step forward for you into the
field of precision measurement. Although this pH controller
is a complex and delicate instrument, its durable structure
developed. Please read the following instructions carefully
and always keep this manual within easy reach.
OPERATION MANUAL
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Summary of Contents for Lutron Electronics PDO-8220
- Page 1 DISSOLVED OXYGEN CONTROLLER/MONITOR Model : PDO-8220 Your purchase of this DISSOLVED OXYGEN CONTROLLER /MONITOR MONITOR marks a step forward for you into the field of precision measurement. Although this pH controller is a complex and delicate instrument, its durable structure developed.
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Page 2: Caution Symbol
Caution Symbol Caution : * Risk of electric shock ! Caution : * Do not use fingers or any tool to touch the Wire Terminals. * Do not apply the relay contact load current > 0.5 Amp. * The instrument contains no user serviceable parts and should not be opened by the user. -
Page 3: Table Of Contents
TABLE OF CONTENTS 1. FEATURES..................... 2. SPECIFICATIONS................... 2-1 General Specifications..............2-2 Electrical Specifications..............3. FRONT PANEL DESCRIPTION.............. 4. FUNCTION SELECTION................. 5. DO ( Dissolved Oxygen ) MEASURING and CALIBRATION PROCEDURE............5-1 Dissolved Oxygen measuremen............5-2 Calibration..................5-3 Probe maintenance................5-4 1st layer setting procedures.............. 5-5 2nd layer setting procedures............. -
Page 4: Features
1. FEATURES * One meter for multi purpose operation : Dissolved Oxygen, Air Oxygen, Temprature. * Dissolved oxygen : 0 to 50.0 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. -
Page 5: Specifications
* Microprocessor circuit ensures high accuracy and * provides special functions and features. Standard 96 X 48 mm DIN case. 2. SPECIFICATIONS 2-1 General Specifications Display 4 digits red LED, digit size : 14 mm. Circuit Custom chip of microprocessor LSI circuit. Range 0 to 50 mg/L Dissolved oxygen... - Page 6 Data Output RS 232 PC serial interface. 0 to 50 ℃. Operating Temperature * Meter Operating Less than 80% R.H. Humidity * Meter Power Supply 90 to 260 ACV, 50/60 Hz. Power Approx. 4.7 VA/AC 110V. Consumption Approx. 5.3 VA/AC 220V. Weight 384 g/ 0.84 LB.
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Page 7: Electrical Specifications
℃ 2-2 Electrical Specifications (23 ±5 A. Dissolved oxygen Oxygen Optional, Probe The polarographic type oxygen probe with Measurement Dissolved Oxygen 0 to 50.0 mg/L ( liter ). & Range Oxygen in Air 0 to 100.0 %. 0 to 50 ℃. Temperature Resolution Dissolved Oxygen... -
Page 8: Front Panel Description
3. FRONT PANEL DESCRIPTION 3-1 Display 3-12 O2 indicator Fig. 1 3-2 PV ( process value ) indicator 3-13 Wire terminals 3-3 SV ( set value ) indicator 3-14 RS232 terminal 3-4 Set Button 3-15 DO Probe Input socket 3-5 ▼ Button 3-16 Case holder 3-6 ▲... -
Page 9: Function Selection
4. FUNCTION SELECTION The meter can select 3 kind Function as : a. Dissolved Oxygen measurement b. Temprature measurement c. Air Oxygen measurement Pressing the " DO/Temp./O2 Button " ( 3-7, Fig. 1 ) once, the Function indicator LED will Light ,show the following in sequence : Dissolved Oxygen measurement Temp. -
Page 10: Do ( Dissolved Oxygen ) Measuring And Calibration Procedure
5. DO ( Dissolved Oxygen ) MEASURING and CALIBRATION PROCEDURE 5-1 Dissolved Oxygen measurement 1) install the " Probe Plug " ( 3-21, Fig. 1 ) into the " DO Socket " ( 3-15, Fig. 1 ). 2) Select the Meter's Function to " DO " ( Dissolved Oxygen "... - Page 11 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 temperature & automatic temperature compensation to take place. b. As for the thermal equilibrium to occur between the probe &...
- Page 12 Oxygen in the air measurement First DO Probe please Put in the air , use the " DO/Temp./O2 Button " ( 3-7, Fig. 1 ) select to O2 Function, the display will show the air Oxygen value. Temprature measurement When DO Probe Put in the air , use the " DO/Temp./O2 Button " ( 3-7, Fig.
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Page 13: Calibration
5-2 Calibration 1) Install the " Probe Plug " ( 3-21, Fig. 1 ) into the " DO Socket " ( 3-15, Fig. 1 ). 2) Power on the meter, Then select the Meter's Function to " %O2 " Air Oxygen measurement. -
Page 14: Probe Maintenance
5-3. 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,... - Page 15 Fill the electrolyte 1) Unscrew the " Probe head " (5-3, Fig 2). 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 "...
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Page 16: 1St Layer Setting Procedures
5-4 1st layer setting procedures LoLt Low Limit HiLt High Limit Low Limit Value Setting 1) Press the " Set Button " ( 3-4, Fig. 1 ) once, the " Display " will show " LoLt ", now the meter is ready for the DO "... - Page 17 High Limit Value Setting 1) After set the " Low Limit " value, press the " Set Button " ( 3-4, Fig. 1 ) twice, the " Display " will show " HiLt ", now the meter is ready for the DO " High Limit "...
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Page 18: 2Nd Layer Setting Procedures
5-5 2nd layer setting procedures HiGH Set DO height compensation value SALt Set DO salt% compensation value FiLt DO or Temp, Filter setting HySt Hysteresis setting oFSt Temp. Offset setting GAin DO or Temp, Gain setting Unit Temp. unit ( ℃ or ℉ setting Pressing the "... - Page 19 When the display show " SALt " DO salt% compensation value setting 1) This function only for the DO ( Disolved oxygen ) Function of adjusting the probe's salt% compensation value. The default value is 0% salt. 2) Use the " ▲ Button " ( 3-6, Fig. 1 ) or " ▼ Button " ( 3-5, Fig.
- Page 20 When the display show " HySt " Hysteresis value setting 1) Use the " DO/Temp./O2 Button " ( 3-7, Fig. 1 ) to select the desired to set the project ( DO ) 2) Use the " ▼ Button " ( 3-5, Fig. 1 ) and the " ▲ Button " ( 3-6, Fig.
- Page 21 a. The control relay will On when measuring value up to 10.0. The control relay will Off again when measuring value down to 9.5. b. The control relay will On when measuring value down to 2.0. The control relay will Off when measuring value up to 2.5. When the display show "...
- Page 22 2) Use the " ▼ Button " ( 3-5, Fig. 1 ) and the " ▲ Button " ( 3-6, Fig. 1 ) to adjust the desiring Gain setting value. then press the " SET Button " ( 3-4, Fig. 1 ) will save the setting value temporally.
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Page 23: Rs232 Pc Serial Interface
6. RS232 PC SERIAL INTERFACE The instrument has RS232 PC serial interface via a 3.5 mm terminal ( 3-14, Fig. 1 ). The data output is a 16 digit stream which can be utilized for user's specific application. A RS232 lead with the following connection will be required to link the instrument with the PC serial port. -
Page 24: System Reset
Each digit indicates the following status : Start Word When send the upper display data = 1 When send the lower display data = 2 D12 & D11 Annunciator for Display ℃ = 01 %O2 =06 mg/L = 07 ℉ = 02 Polarity 0 = Positive 1 = Negative... -
Page 25: The Address Of After Service Center
8. THE ADDRESS OF AFTER SERVICE CENTER 180511-PDO-8220...
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