Daruifuno DUC2-DO Quick manual

Dissolved oxygen controller
Basic User Manual
Daruifuno
Model: DUC2 -DO
Version 1.0

Chapter 7 Menu Description
Chapter 4 Electrical Installation
Chapter 1 Overview
Chapter 5 User Interface
4.1 Power connection..............................................................................................10
4.2 Definition of Terminals........................................................................................11
3.1 Installation location .............................................................................................6
3.2 External dimensions of the instrument.................................................................7
3.3 Panel type installation..........................................................................................7
3.4 Wall Mounting......................................................................................................8
3.5 Pipeline installation..............................................................................................9
1.1 Technical parameters........................................................................................5
Chapter 2 Unboxing................................................................................................................6
Chapter 3 Mechanical Installation
5.1 Panel keys.........................................................................................................12
5.2 Display screen...................................................................................................13
Chapter 6 System Default Settings......................................................................................15
7.1 Probe set............................................................................................................16
7.2 Alarm Set...........................................................................................................16
7.2.1 Control functions..........................................................................................16
7.2.2 Cleaning output............................................................................................16
7.2.3 Cleaning state..............................................................................................17
7.2.4 Ambient temperature alarm..........................................................................17
Preface Preface....................................................................................................................1

7.3 Current set.................................................................................................... 17
7.3.1 Output type................................................................................................. 17
7.3.2 Channel selection........................................................................................17
7.3.3 Upper limit value.........................................................................................17
7.3.4 Lower limit value...............................................................................,.........17
7.4 Communication settings..............................................................................18
7.4.1 Slave ID......... .............................................................................................18
7.4.2 Baud rate.....................................................................................................18
7.4.3 Verify Bit ..........................................................................................,,,,,.......18
7.4.4 Stop Bit........................................................................................................18
7.5 System Set.....................................................................................................18
7.5.1 Time setting.................................................................................................18
7.5.2 Display Speed.............................................................................................18
7.5.3 Backlight selection .....................................................................................18
7.5.4 Contrast set.................................................................................................18
7.5.5 Version Information.....................................................................................18
7.5.6 Password settings.......................................................................................18
7.6 Historical records.........................................................................................18
7.6.1 Memory information ...................................................................................18
7.6.2 Recording interval ......................................................................................18
7.6.3 Data query ..................................................................................................18
7.7 Testing and Maintenance.............................................................................19
7.7.1 Current calibration ......................................................................................19
7.7.2 Relay Test...................................................................................................19
7.7.3 Current test.................................................................................................19
7.7.4 Measuring method......................................................................................19
7.7.5 Ambient temperature...................................................................................19
7.7.7 Meter reset..................................................................................................19
7.8 Setting list......................................................................................................19
A Modbus register information...........................................................................20

1
This manual is suitable for products produced by our company L3XXXXXXXXXX Series of digital
universal controllers.
The parameters and functions supported by different series of meters can be identified and
judged by referring to the "single machine code" label of the fuselage.
Each qualified instrument and equipment has an independent body "single machine code"
label, the serial number of the code is unique, please do not tear the label, otherwise the
quality guarantee will be lost.
"Single machine code" label of the fuselage:
Product serial NO.
Serial NO.
Hardware version
Software version
The meaning of the label:

2
Important Safety Information
Please read and observe the following:
Please read this entire manual before unpacking, installation and operation, with particular attention to all
danger warnings and precautions. Failure to do so may result in damage to the instrument or personal
injury to the operator due to misuse. Do not install or use the instrument by any means other than those
specified in this manual.
•After opening the analyzer case, the user may touch the instrument supply voltage.Please make sure to
disconnect the power, before you open the analyzer cases. Analyzer housing assembly only low
voltage, the operation is safe.
•The analyzer must be installed in accordance with relevant local codes and the professional and technical
personnel, to comply with the analyzer's technical specifications and input ratings. If you are not sure
which of the main power lines is the neutral line, use a double-pole switch to power off the analyzer.
• As soon as a problem occurs with the analyzer, disconnect the analyzer from power to prevent any
unintentional operation that could result in damage to the instrument. For example, it may be in an unsafe
state when the following situations occur:
(1) The analyzer appears visibly damaged;
(2)Analyzer fails to operate properly or provide the intended measurements;
(3)Analyzer has been stored for a long period of time at temperatures over 70°C environment.
• Wiring or repair should be done by professionals, and only the power-off analyzer should be operated.

3
Caution:
Warning:
The warning sign is shown above, which warns the user might get hurt
Useful signs
In add it ion to installation and operation information, the manual also includes warning signs
related to user safety, caution signs related to possible instrument failure, and note signs
related to important and useful operating instructions.
Power Wiring Note
1. Please install voltage stabilization and surge protection equipment that meets the instrument
parameters at the power supply terminal to ensure that the power supply provided by the
instrument is stable and reliable and meets the standards, otherwise the instrument will be
irreversibly damaged due to poor power supply.
2. Damage caused by incorrect power supply is not covered by our quality guarantee.
3. Detailed parameters see the technical parameters.
The caution sign is shown above, it reminds the user that the instrument may
malfunction or be damaged.
The note sign is shown on the left, warns the user of important information about
operation.
☞

4
Guarantee
Our company warrants the instrument for one year (12 months) from the date of delivery.
Consumables and consumable parts in the equipment are not covered by the warranty.
The terms of this warranty shall not apply if damage to the instrument occurs beyond the
warranty period, or in the opinion of the company, the breakage or destruction of the
instrument is due to improper use, lack of maintenance, improper installation, improper
modification, abnormal environmental conditions, etc.
The Company's obligation under this warranty is limited to providing replacement or repair of
this product, as the case may be. The product must be thoroughly cleaned to remove any
contaminated chemicals before it is accepted for replacement or repair. Our obligations shall
not exceed the price of the product itself. In no event shall the company beliable for damage
caused by incidental or consequential damages, whether to persons or objects. The
Company shall not beliable for any other loss, damage or expense of any kind, including
economic loss resulting from the installation, use or improper use of the product.
For details, please refer to the product's quality promise with the product, and keep this
manual and the quality promise properly.