DYS DWA-3000B-DO Instruction Manual

Operating & Instruction Manual
DWA-3000B-DO
Microprocessor based DO Analyzer

DWA-3000B-DO ANALYZER
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Table of Content
1. Introduction--------------------------------------------------------------------------------------------------------------------------------------- 3
2. Summarized Outline------------------------------------------------------------------------------------------------------------------------------ 3
3. Warning and Caution ---------------------------------------------------------------------------------------------------------------------------- 3
1) Warning
2) Caution
4. Process Applications------------------------------------------------------------------------------------------------------------------------------- 4
5. Special Features----------------------------------------------------------------------------------------------------------------------------------- 5
6. Specification -------------------------------------------------------------------------------------------------------------------------------------- 5
7. Function Key Description------------------------------------------------------------------------------------------------------------------------- 6
8. CONFIGURE MODE Function Set-Up Detail----------------------------------------------------------------------------------------------------- 6
9. Calibration ----------------------------------------------------------------------------------------------------------------------------------------- 6
1) CALIBRATION MODE Features
2) Calibration Provision
3) ZERO Calibration
4) SPAN Calibration
10. DO Measurement-------------------------------------------------------------------------------------------------------------------------------- 9.
11. CONFIGURE MODE (Set-Up Change) --------------------------------------------------------------------------------------------------------- 10 .
1) Sensor parameter
2) Sensor setting
3) Temperature Parameter
4) External Contact Output Set-Up
5) Analogue Output Set-Up
6) Cleaning Contact Output Set-Up
7) Trend Set-Up
8) Time Set-Up
12. Other Function Set-Up ------------------------------------------------------------------------------------------------------------------------ 18
1) Manual Cleaning
2) Clearing of Trend Screen
13. Installation------------------------------------------------------------------------------------------------------------------------------------ 19
14. Wiring----------------------------------------------------------------------------------------------------------------------------------------- 20
15. Outward Appearance------------------------------------------------------------------------------------------------------------------------ 22
16. Cause of Trouble and Troubleshooting---------------------------------------------------------------------------------------------------- 23
17. Repair of Defective Electrode--------------------------------------------------------------------------------------------------------------- 24
1) Maintenance of Electrode and Caution
2) Replacement of Electrode
18. References ----------------------------------------------------------------------------------------------------------------------------------- 24
1) Polarography
2) Galvanic Cell
3) Saturated DO by Temperature (JIS)
4) Saturated DO by Temperature and Salinity (JIS)
5) Saturated DO by Temperature (ANSI)
19. Integrated Communication Protocol Standard (TMS Output) ----------------------------------------------------------------------- 30
1) Summary
2) Communication Protocol Standard
3) Communication Command Code
4) Communication Command Description
20. Quality Assurance and Post Order Services-------------------------------------------------------------------------------------------------- 33
1) Quality Assurance
2) Post Order Service Request and Consultation

DWA-3000B-DO ANALYZER
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1. Introduction
We appreciate your purchasing of our product, DWA-3000B-DO, Microprocessor based DO
Analyzer. DWA-3000B/Dissolved Oxygen Microprocessor based DO Analyzer is an instrument
measuring the dissolved oxygen underwater continuously and used at purification plant, sewage
and wastewater treatment plant, excreta treatment plant, combined septic tank, industrial waste
water disposal site, stock farming and water treatment industry widely.
2. Summarized Outline
This instrument is designed to be an efficient operation and without recompense, and a Dissolved
Oxygen analyzer to read and transmit the signal inputted directly in the sensor. Dissolved Oxygen
Analyzer(DWA-3000B-DO) has all built-in circuit necessary to output and transmit 4~20㎃
including the isolation function, provides reliable data even in using at any monitoring process and
control. Even the first operating user can also easily handle the instrument without the help of
Operation Manual, backed up by the wide graphic LCD screen and embedded automatic
temperature compensation circuit preventing the error caused by temperature variation of solution.
Please carefully read this Operation Manual fully digesting the contents for the installation &
wiring of instrument at the jobsite for effective & appropriate use of manual.
3. Warning and Caution
1) Warning
WARNING
▪ Be sure to store & move the instrument with the power supply switch turned off when storing for a
long period and moving, and move only after securely fixing the instrument not to be fell down.
▪‘E Terminal mounted at the instrument terminal block must be used only after grounding to
obtain stable & reliable measuring values.
WARNING
▪ Be sure to work only after turning the power supply switch off when installing & checking
the instrument..
▪ Instrument Terminal Wiring of Sensor Cable, Current Output & Power Supply Line must be
done as per the instructions of Manual(p15) and marking of terminal block shown on the
back of instrument.
▪ Never disassemble or modify the instrument, which may cause the safety accident and
malfunction of instrument.

DWA-3000B-DO ANALYZER
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2) Caution
4. Process Applications
▪ Purification Plant
▪ Sewage treatment plant
▪ Wastewater disposal plant
▪ Excreta treatment plant
▪ Combined septic tank
▪ Industrial waste water disposal site
▪ Stock farming
▪ Water treatment industry
WARNING
▪ Be sure to be same between the set-up power supply inside and power supply in use in case of
running the current and voltage.
▪ Be sure to use the rated fuse or under, which is mounted in the power-supply.
WARNING
▪ Accuracy and reliability of measurement results are not guaranteed if the procedures &
methodologies specified in the Manual are not in compliance, and may be directly connected with
the safety accident and malfunction of instrument.
WARNING
▪ Rinse it when stained with it to skin and clothing because inner solution inside electrode is strong
alkaline. Pay special attention to eyes because diaphragm is easily affected by alkaline.
CAUTION
▪ The outlook & operating procedure of this instrument may be revised at own discretion without
advance notice..
CAUTION
▪ Accuracy and reliability of measurement results are not guaranteed if the procedures &
methodologies specified in the Manual are not in compliance.

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5. Special Features
▪ Microprocessor-based Digital Program Controller.
▪ Wide graphic LCD screen and illumination function (Graphic LCD 160*128 Dots)
▪ Retrieval of analyzer status data information
(Per TMS Communication Standard Regulation of Ministry of Environment)
▪ RS-232C/DC POWER MODEM Interface Communication for TMS
▪ 0~20, 0~24, 4~20mA Isolated DC Output
▪ Solenoid Driving Output for Water-Jet cleaning.
▪ High, Low & Alarm Outputs ▪ DIN144 Panel Mounted Type
6. Specification
▪ Product Model : DWA-3000B-DO
▪ Measuring Range : 0∼20 ppm, mg/L
▪ Power Supply : AC 110V/220V 50/60Hz ±10% 3VA
▪ Display : Graphic LCD 160*128 Dots
(Indication of measuring values, temperature, status information, trend graph)
▪ Alarm Contact : Max. 250V/2A (2 contacts : H, L)
▪ Key pad : Membrane Keypad, 7 keys
▪ Operating Temperature Range : -25℃ ∼ 70℃,
Relative Humidity : Max. 90% (Non-Condensing)
▪ Accuracy : ± 1% of F.S
▪ Repetitiveness, Reproducibility : ± 1% of F.S
▪ Responsiveness : 60sec (90% Saturation)
▪ Output Contact : High, Low (2 outputs) Cleaning Option (Water, Air)
▪ Signal Output : Insulated 0∼5V DC Current, 0∼20 ㎃ DC, 0∼24 ㎃ DC, 4∼20 ㎃ DC
Digital Interface : Insulated RS232C/DC POWER MODEM-Optional
▪ Temperature Compensation : ATC/MTC (Pt100/Pt1000/NTC10 K)
▪ Salinity compensation Range : 40 ppt
▪ Pressure Compensation Range : 1013 hPa, possible basic and voluntary input set-up
▪ Measurement Method : Polarography or Galvanic cell
▪ Operating Condition : Measuring pressure – Polarography (ATM, 0∼3 ㎏ f/㎠)
- Galvanic cell (ATM, 0∼1 ㎏ f/㎠)
Measuring Flow – Submersible Type (Min. 30c/sec or higher)
▪ Sensor Calibration : Automatic and Manual Calibration
▪ Enclosure Material : Enclosure - ABS
▪ Enclosure Dimension : 155mm(W)× 155mm(H)× 184mm(D)
▪ Enclosure Construction : IP65
▪ Enclosure Mounting : Pipe Mounting, Panel Wall Mounting
▪ Weight : Appx. 1.5 kg

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7. Function Key Description
Enter to Set Up Mode.
Enter to Calibration Mode & Change of Input Data digits.
Change Input Data values.
Change Input Data values.
Change Input Data values & Manual Cleaning Instruction.
Moving of Input Data Item & Calibrating Instruction of Calibration Mode.
Move to Initial Measurement Mode from Set-Up Mode & Calibration Mode
(Initialization of Trend Graph)
8. CONFIGURE MODE Function Set-Up Detail
1) Sensor parameter : Check Sensor Status & correct constant values of sensor.
2) Temp parameter : Check temperature status & correct temperature constant values..
3) Relay outputs : Input Upper/Lower Contact Output Limits & Delay Values.
4) Analog outputs : Input Upper/Lower Limit values of Analog Signal.
5) Cleaner outputs : Input Cleaning Contact Cycle, Cleaning Time & Delay Time after
cleaning.
6) Trend setting : Input Max. Trend Values, Upper Limit, Lower Limit, Min. Values.
Reference Value & Trend Cycles.
7) Time setting : Time Set-Up.
9. Calibration
1) Calibration Provision
▪ Temperature accuracy is required for the measurement of dissolved oxygen. Therefore, be
sure to stabilize the temperature sufficiently.
▪ Routine calibration is required as the sensitivity of electrode varies by long period.
▪ Execute sensitivity calibration by minimum one month cycle.
▪ Be sure to Calibrate without any crack on the electrode membrane.
C
CONFIG
CAL
ENTER
ESC

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CALIBRATION
제로 교정
Zero 000.0m g/L CAL
Span 08.11m g/L CAL
2) ZERO Calibration
CAUTION
▪ Check if any cracks or abnormalities exist on Sensor by all appearances after unpacking.
If any abnormalities are found, contact the Supplier..
▪ Be sure to execute calibration prior to operation to adjust the electrical characteristics
of Sensor & Instrument.
▪ Temperature accuracy is required for the measurement of dissolved oxygen.
▪ Routine calibration is required as the sensitivity of electrode varies by long period.
▪ Periodic calibration and checking of electrode are required according to the sample, number
and kind.
▪ Execute one selected between 2 items below in case of Polarograph sensor.
① Disconnect the A-terminal in the instrument terminal, execute ZERO calibration
according to the operation procedure below and wire it.
② Execute Zero calibration by the operation procedure below after submerge the electrode
in ZERO solution (Sodium Sulfite (Na2SO3)) for 5 minutes.
▪ Execute one selected between 2 items below in case of Galvanic sensor.
① Disconnect the A-terminal in the instrument terminal, execute ZERO calibration
according to the operation procedure below and wire it.
② Execute Zero calibration by the operation procedure below after submerge the electrode
in ZERO solution (Sodium Sulfite (Na2SO3)) for 5 minutes.
.
▪ Press the key to display below screen.
ZERO Calibration
Press keys to move the cursor position and set the figures to 0.
CAL
CAL

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CALIBRATION
제로 교정
Zero 000.0m g/L CAL
Span 08.11m g/L CAL
CALIBRATION
스판 교정
Zero 000.0m g/L CAL
Span 08.11m g/L CAL
CALIBRATION
스판 교정
Zero 000.0m g/L CAL
S p a n 0 8 .1 1 m g /L C A L
ZERO Calibration
Press to execute calibration by positioning the cursor on CAL as shown on above figure.
(Press key to stop & cancel the calibration)
4) SPAN Calibration
Move to below screen after completing ZERO Calibration.
SPAN calibration value according to the temperature is set up automatically and possible to
correct.
SPAN Calibration
Press keys to move the cursor position & enter values with keys.
SPAN Calibration
Press to execute calibration by positioning the cursor on CAL as shown on above figure
once the calibration value input is completed
(Press key to stop & cancel the calibration)
ENTER
ESC
CAL
ENTER
ESC

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D O 25 .0℃
정상 측정중
8.11
mg/L
측정항목
측정값
측정 그래프
상태정보
온도
측정단위
10. DO Measurement
주 의
▪ Be sure to calibrate prior to the installation of instrument.
▪ To be displayed on LCD screen in real time once the initial power is supplied.
▪ Measuring item, temperature, measuring value, measuring unit, measuring graph & status
information are displayed.
NORMAL MEASURING OPERATION
※ CONTENT OF STATUS INFORMATION
Message Description
Normal Measuring
Operation
Operate under the condition not exceeding the Upper/Lower Limit set up
values.
Upper Limit Contact
Output Contact activated exceeding beyond the Upper Limit set up value.
Lower Limit Contact
Output Contact activated exceeding beyond the Lower Limit set up value.
Cleaning Holding continuous measuring for short time under Automatic Cleaning
Operation
Calibrating Message displayed under Calibration Mode momentarily when moving from
Calibration Mode to Measurement Mode.
Beyond Measuring Range Message displayed when exceeding the maximum & minimum measuring
ranges.
Unit
Temp .
Graph
Status
Measurement Value
Measurement Item

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CONFIGURE
센서 설정변경
3. Temp parameter
4 . R ela y o u tp u rs
5. Analog outpurs
6 . C lean e r o u tp u rs
7 . T re n d s e ttin g
8. Tim e setting
1 . S e n s o r p a ra m e te r
2. S e n so r settin g
Sensor param eter
기울기 보정
+00100.0m V 008.11mg/L
0180.0m V 00000m V
0000.7m V 00000m V
00000mg/L
00000mg/L
00000mg/L
11. CONFIGURE MODE (Set-Up Change)
1) Sensor Calibration (Sensor parameter)
▪ Press key to start with below screen.
CHANGE SENSOR SET-UP
▪ Move to key by pressing keys to move the position of cursor.
▪ Press key to move back to MEASUREMENT MODE
GRADIENT COMPENSATION
▪ Enter values with keys by pressing keys and moving the position of
cursor.
▪ Press key when moving to the next Input Mode is desired.
▪ Press key to move to CONFIGURE MENU, and . key to return to the
MEASUREMENT MODE. .
※GRADIENT COMPENSATION, SECTIONAL COMPENSATION, COEFFICIENT COMPENSATION,
OFFSET COMPENSATION & MEASUREMENT RANGE SET-UP Items available (Omitted)
C
CONFIG
ESC
CAL
ENTER
C
CONFIG
ESC