DOG-3082YA Industrial Online Optical Dissolved Oxygen Meter
DOG-3082YA on-line fluorescent dissolved oxygen analyzer is our company's new generation of
microcomputer based high-grade instrument, the principle of fluorescence method, maintenance
free, no electrolyte solution added, no anode, cathode cleaningor replacement, no measurement
drift.
DOG-3082YA has the characteristics of full English display, Englishmenu operation, full
intelligence, multi function, high measuring performance, environmental adaptability and so on.
Can be widely used in sewage treatmentplants, water plants and other industries of the liquid
oxygen content measurement of special equipment.
Basic functions and features
Notepad function:Recording theoperation of the instrument and the use of the alarm and the time
of the alarm, easy to manage.
The function of historical curve and digital recorder:The secondary meter automatically store a
measurement data per 5 minutes, can be stored for a month of dissolved oxygen value. On one
screen, it provides twoways of "historical curve" and "fixed point". The "historical curve" reflects
the changing trend and process of water quality ingeneral, which is favorable for finding
problems and solving problems. The function of "fixed point" will get the value of dissolved
oxygen in a specific pointand time.
Digital clock function : Displays the current time, provides the time reference for thedigital
recorder function.
Back-light function :Can be used in the light of the dim or completely no bright environment,
according to the temperature change, automatic adjustment contrast to the most clear, in order to
meet the personal habits.
To prevent the collapse of the program:Watchdog program to ensure that theinstrumentwill not
crash, which is the basicrequirements of online instrumentation.
Output current setting and checkfunction : Manual current source function, can check and
arbitrary set the output current value, easy to detect the recorder and the lower machine.
Full intelligent:DOG-3082YAon-line fluorescence method for dissolved oxygen meter with high
precision ADconversion and microprocessing technology, can complete dissolved oxygen value
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measurement, automatic conversion range, instrument self-test and other functions.
High reliability: Components integrated into a circuit board, there is nocomplex function switch,
adjust the knob and potentiometer.
Strong anti-interference ability : The currentoutput by the photoelectric coupling isolation
technology, strong anti-interference ability, realize remote transmission. Has good electromagnetic
compatibility.
Waterproof and dust proof design:Protection level IP65, suitable for outdoor use.
RS485 communication interface:Can be linked to computer monitoring and communication.
FullEnglish display, friendly interface:Adopt thehigh resolution of the lattice graphics LCD
module, all data, state and operationinstructions are displayed in Chinese, no symbol or code
defined by manufacturers.
Simple menu structure, text - style table dialog:Compared with the traditional instrument, the
DOG-3082YAfunction adds a lot of steps and operation sequence, youcan use the manual, follow
the prompts on thescreen can be operated.
Multi parameter simultaneous display:At the same time, the dissolved oxygen value, output
current, time and state are displayed on a screen. The main displayto the specifications of the
10X10mm display values of dissolved oxygen value: eye-catching, visual distance, three sub
display display output current, status, week, month, and secondsto 5x5specifications, to meet the
user's different habits and provide second time reference.
Technical indexes
1. Measuring range:(0~20.00)mg/L (0~80.0)ºC, adopt
Optical DO Sensor
2. Resolution: 0.01mg/L
3. Repeat-ability: ±2%.
4. Current isolated output: 4~20 mA (load<750Ω)
6. Output current error: ≤±1%FS;
7.Alarm relay: AC220V, 7A
8. RS485communication interface (optional)
9. Power supply:AC220V±22V, 50Hz±1Hz
DC24±2.4V,1A(optional)
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10. Protection grade: IP65
11. Clock accuracy: ± 1minute/month
12. Data storage: 1 month (1unit/5minutes)
13. Data continuous saving time forpower down:10years
14. Dimension: 146(L) × 146(W) ×108(D) mm
Opening dimension: 138×138 mm;
15. Weight: 0.8kg
16. Working condition:Ambient temperature: 0~80ºC Relative humidity: <85%
17. Sensor installation method: the distribution or the type of the sensor, please specify when the
order is not specified by the sinkingtype.
Installationof instrument
DOG-3082YA on-line fluorescence method dissolved oxygen meterconsist of secondary meter
and sensor two parts. The user after unpacking, please accordingto the packing list check
instrumentquantity and specifications, if the number of incorrect or types of discrepancies, please
contact with the manufacturer or seller.
1.DOG-3082YAsecondary meter 1 unit
2.3082YA -ppm Optical DO Sensor 1 pcs
3.User manual 1 pcs
4.Certificate 1 pcs
Dimension and installation of the secondary meter
According to manyyears of on-site installation and practical experience and customer's suggestion,
we use the two instruments to open the way from the right to the left, to solve the problem that we
used to go down from the top down. The secondary meter for the international standard chassis,
the use of fully enclosed shell.Can be installed in the monitoring room far away from the site, but
also with themeasuring pool installed in the field. The required wiring is connected tothe internal
terminal of the secondary meter. The secondary meter of the shape and size of the hole opening:
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There arefour kinds of installationtype of the secondary meter, open holemounting type, wall
mounting type, pipe type, outdoor installation.
Open hole mounting: Control panel to open 138*138mm hole,the factory with a U-shaped
stainless steel sheet, through the base of 89*89mm four positioning hole in the control cabinet.
Wall mounting type: The first, make the secondary meter through the base of the 89*89mm four
positioningholes, fixed in the flat plate isgreaterthan 146*146, and then fixed to the flat plate
installed.
Pipe type, outdoor installation: Through the base of the 89*89mm four positioning holes, fixed
the secondary meter.
Use notes:
1,Wiring: open instrument, first with a screwdriver to loosen cover the four screws, the cover on
the left to carry on, again from right to left turn. Refer to section 4.4 instrument wiring, the line is
connected, so that the line leaving some margin for the nextopen the cabinet when the line is
pulled off), and then tighten the pg13.5 waterproof ring.
2,Line: waterproof ring to loosen the pg13.5. Then the line to frontier (if the mounting line in a
casing stay have a certain margin do not need to carry out this step). With fourscrews screwdriver
loosencover, the upper cover left upwards, then from right toleft turn.
Dimension: 146*146*108mm
Openingdimension: 138*138 mm
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