DOG-3082B溶氧仪Dissolved oxygen meter是我公司生产的在线电化学分析仪之一,为高智能化在线连续监测仪。可以配极谱式电极，自动实现从ppb级到ppm级的宽范围测量，是检测锅炉给水、凝结水、环保污水等行业的液体中氧含量测量的仪器。仪器采用壁挂式安装外壳，方便客户安装x现场。
溶氧仪是我公司生产的在线电化学分析仪之一,为高智能化在线连续监测仪。可以配极谱式电极，自动实现从ppb级到ppm级的宽范围测量，是检测锅炉给水、凝结水、环保污水等行业的液体中氧含量测量的仪器。
Dissolved oxygen meter is one of the on-line electro-chemical analyzers developed by this Company. It is a highly inligent on-line continuous monitoring device. It can be used together with polarographic electrode to realize wide range measurement from ppb level to ppm level. It is a special instrument for testing and measuring the oxygen content of such water as boiler supply water, condensate and waste water.
以响应快、稳定、可靠、使用费用低等特点，适合火力发电厂大量使用。
is characterized by rapid response, stableness, high reliability and low maintenance cost, suitable for wide use in power plants.
主要特点：
Main characteristics of the secondary meter:
1、显示,操作方便：
1. Display convenient operation:
全中文显示,界面美观：采用高分辨率的液晶显示模块,所有的数据、状态和操作提示都是中文显示,*没有厂家自己定义的符号或代码。
Display fully in Chinese, and beautiful interface: It uses a high-resolution LCD display module, and all data, status and operation prompts are displayed in Chinese, without any symbols or codes defined by the manufacturer.
简单的菜单结构,文本式的人表对话： 与传统的仪表相比, 功能增加了很多,但由于采用了分门别类的菜单结构,类似微机的操作方法,使用起来更清晰、方便。不必记忆操作步骤和操作顺序;可以不用说明书,按照屏幕上的提示就可操作。
Simple menu structure, and text-type man-machine interaction: Compared with traditional instruments, is provided with many new functions. However, with sorted menu structure and the operation manner similar to PC, it can be conveniently and simply operated. Users need not remember the operation steps and sequences, and can operate it even without a user manual, just following the prompts on the screen.
多参数同时显示：在一屏上同时显示氧浓度值、输入电流或输出电流、温度、时间和状态。主显示以10×10mm规格显示氧浓度值,醒目,可视距离远；6个副显示以5×5的规格显示输入电流或输出电流、温度、状态、星期、年月日和时分秒等,以满足用户的不同使用习惯和提供仪表的时间基准。
Multi-parameter display in the same screen: It displays several parameters in the same screen, including oxygen concentration, input current or output current, temperature, time and status. The main display area displays oxygen concentration in 10×10mm, very striking and readable even far away; The 6 auxiliary display areas display in 5×5mm the input/output current, temperature, status, week, date and time, designed to meet different habits of users and providing time base for the instrument.
2、实用的功能组：
2. Practical functions:
历史曲线功能：二次表每五分钟自动存储测量的氧浓度值,可连续存储一个月的数据。 “历史曲线”从总体上反映水质的变化趋势和过程,很有利于发现问题和解决问题。“定时定点”功能将得到特定点、特定时间的被测氧浓度和温度值。
History curve: It can save the measurement data automatically every 5 minutes, and can store the oxygen concentration data of one consecutive month. The “history curve” can generally reflects the changing tendency and course of the water quality, and can help identify and solve problems. “Specified point/time” is used to obtain the oxygen concentration and temperature values at specified point/time.
记事本功能：忠实记录仪表的操作使用情况和报警的发生时间,便于管理。
Notepad: The notepad faithfully records the operation conditions and alarming time of the instrument, providing convenience for management.
电极的研究功能：存储50次标定的方式、时间和结果,以分析电极的变化规律。
Electrode analysis: It can store the manners, time and results of 50 calibrations, helping to analyze the changing law of the electrode.
数字时钟功能：显示当前的时间,为数字记录功能提供时间基准。
Digital clock: It displays the current time, providing time base for the digital recording.
背光功能：可在光线昏暗或*没光亮的环境下使用,根据温度变化,自动调节对比度,也可人工调节,使显示始终清晰。
Backlight: With the backlight it can be used in dim and even compley dark environment. The contrast can be adjusted automatically according to temperature change, or adjusted manually to ensure clear display all along.
工业控制式看门狗：确保仪表不会死机,这是在线式仪表的基本要求。
Industrial watchdog: This ensures no system crash of the instrument, which is the basic requirement for an on-line instrument.
输出电流设置与检查功能：手动电流源功能,可检查和任意设定输出电流值,方便检测记录仪和下位机。
Output current setting and checking: It is provided with manual current source function, so output current can be checked and set freely, providing convenience for inspection of recorder and downstream instruments.
软件设定电流输出方式：软件选择是0～10mA或4～20mA输出,而不需用户拨任何开关。
Software-set current output: The software selects output with the range of 0～10mA or 4～20mA, and user need not touch any switch.
四种标定方式：除传统的一点和两点标定方法外,还有手动输入零点和斜率以及已知氧浓度值标定等方法,以满足在各种情况下的使用。
Four calibration manners: Except the traditional one-point and two-point calibration, it also provides calibration by manual input zero-point and slope and known oxygen concentration value, so that various needs of users can be met.
符号及术语
Symbols and terms
使用仪表会碰到一些新的名词和术语，现说明如下：
The following new terms are used for Dissolved oxygen meter. See the following explanation:
Pa和bar(巴)都是大气压强的单位,1bar=105Pa,1mbar=100Pa=1hPa
Pa and bar are both units of atmospheric pressure: 1bar=105Pa,1mbar=100Pa=1hPa
I0：本说明书和显示屏上的I0代表氧浓度为零时的电流（就如同pH电极的零电位一样），但相当稳定。
I0: I0 in this manual and the screen means the current at the time of zero oxygen concentration (similar as the zero potential of pH electrode).
S：本说明书和显示屏上的S代表氧电极的斜率。单位为pA/mbr,为负值,一般为-100～-300（nA/mbr）。
S: S in this manual and the screen means the slope of the oxygen electrode, in pA/mbr. This value is a minus, generally -100～-300 (nA/mbr).
1、测量范围：0～100.0 ug/L；0～20.00 mg/L（自动切换）；0～60℃；
1. Measurement range: 0～100.0 ug/L; 0～20.00 mg/L (Automatic switching); 0～60℃;
分辨度：0.1 ug/L；0.01 mg/L； 0.1℃；
Resolution: 0.1 ug/L; 0.01 mg/L; 0.1℃;
2、整机基本误差：ug/L：±1.0%FS；mg/L：±0.5%FS ，温度：±0.5℃；
2. Overall basic error: ug/L：±1.0%FS; mg/L: ±0.5%FS; temperature: ±0.5℃;
3、整机示值重复性：±0.5%FS；
3. Overall indication repetition: ±0.5%FS;
4、整机示值稳定性：±1.0%FS；
4. Overall indication stableness: ±1.0%FS;
5、自动温度补偿范围：0～60℃，25℃为基准；
5. Automatic temperature compensation range: 0～60℃, 25℃ being the base;
6、响应时间：<60秒（终值的98%，25℃） 37℃：98%终值<20秒；
6. Response time: <60 seconds (98% of the final value, 25℃), or <20 (98% final value, 37℃);
7、时钟精度：±1分/月；
7. Clock precision: ±1 minute/month;
8、输出电流误差：≤±1.0%FS；
8. Output current error: ≤±1.0%FS;
9、隔离输出：0～10 mA（负载电阻<1.5KΩ ） 4～20 mA（负载电阻<750Ω ）；
9. Isolated output: 0～10 mA (load resistance <1.5KΩ), 4～20 mA (load resistance<750Ω);
10、RS485通讯接口（选配）；
10. RS485 communication interface (optional);
11、数据存储数量：1个月（1点/5分钟）；
11. Data storage quantity: data of 1 month (1 point per 5 minutes);
12、数据连续掉电保存时间：10年；
12. Data storage period without power: 10 years;
13、报警继电器：AC220V，3A；
13. Alarming relay: AC220V, 3A;
14、电源：220V±10% 50±1HZ；
14. Power source: 220V±10%, 50±1HZ;
16、重量：二次表：0.8Kg ；
16. Weight: 0.8kg (secondary meter);
17、工作条件：环境温度：0～60℃ 相对湿度：<85%；
17. Working condition: Ambient temperature 0～60℃; Relative humidity <85%;
18、进出水连接管道：硬管或软管，外径有Ø 8、Ø 10、Ø 12三种规格。
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