1、 Instrument Introduction

TC-890EType National Standard IntelligentBOD5The measuring instrument uses an electronic digital differential pressure sensor instead of mercury pressure difference method to measure biochemical oxygen demand, and adopts a mercury free method to reduce the harm to experimental personnel; Combined with digital touch screen, it can displayBOD5The curve of numerical changes, displayed directlyBODofmg/LThe data (even with vaccination samples measured simultaneously without the need for a calculator) can be widely used in various industries such as laboratory testing, sewage treatment, colleges and universities, environmental monitoring, sewage treatment, and colleges and research institutions.
2、 Instrument features

1Adopting mercury free differential pressure method and high-precision imported differential pressure sensor from the United States, with small error value, safe and reliable, and easy operation;
2IntelligentBOD5The measuring instrument adopts a remote control, which can remotely control the intelligent inside the incubatorBOD5Operation of the measuring instrument to avoid frequent opening and closing of the incubator, which may cause experimental errors;
3Can produce eight single samples or4Group (each group)2Dilute the vaccination combination sample and read the measurement results directly without further conversion;
4Adopting two display methods of data direct reading and variation curve, combined with multi-color display technology, to increase data visibility;
5The instrument comes with a built-in printing function, which can be printed according to experimental needsBODdata
6IntelligentBOD5Can be done throughUSBInterface useUUnlimited backup of diskBODdata
7Continuous or intermittent mixing system, users can choose according to their own needs;
8Using a touch screen to reduce the occurrence of mechanical button installation and aging faults, the operation interface is more convenient and intuitive, with a power-saving screen saver mode. During the measurement process, the display screen will automatically turn off after five minutes of unmanned operation. Pressing any remote control button or tapping the touch screen will immediately display normally, and the automatic alarm function will be completed.
9Measurement range:0～45 mg/L，0～90 mg/L，0～180 mg/L，0～360 mg/L，0～540 mg/L，0～720 mg/L，0～900mg/L，0～1080mg/L，0～1440mg/L，0～1800mg/LOptional,BODConcentration lower than2000mg/LWhen there is no need for dilution,0～4000mg/LIt needs to be diluted.
10Automatic backup and protection of power-off data to ensure the security and continuity of experimental data;
11According to experimental requirements, the constant temperature waiting time can be set by oneself（0～3Hours and cultivation period（1～30Heaven);
12Adopting5000Secondary data point recording, smoother and more realistic curve, adjustable data recording frequency, with a minimum of1min/Next time.

3、 Technical parameters

1.Measurement principle: Mercury free pressure difference method, using electronic sensors for negative pressure difference measurement;

2.Display mode: color touch screen;

3.Measurement range:0～45 mg/L，0～90 mg/L，0～180 mg/L，0～360 mg/L，0～540 mg/L，0～720 mg/L，0～900mg/L，0～1080mg/L，0～1440mg/L，0～1800mg/LOptional,BODConcentration lower than2000mg/LWhen there is no need for dilution,0～4000mg/LIt needs to be diluted.

4.Result storage: Each measurement item supports8*5000Record of secondary data points;

5.Measure the number of bottles:1～8bottle Can be set arbitrarily;

6.Measure bottle volume:500mL；

7.Data storage: How large can it be stored20Experimental historical data over years old;

8.Mixing method: magnetic stirring;

9.Data query: supports curve and numerical queries;

10.Data output:USBData transmission can be achieved throughUUnlimited backup of diskBODdata

11.Data printing: Equipped with an embedded needle printer, it can automatically or manually print measurement results;

12.BODCultivation measurement cycle:1-30day Can be set arbitrarily;

13.Test temperature:20℃±1℃；

14.Instrument storage temperature:-20℃～+60℃；

15.Result storage: According to the measurement cycle, it can be continuously and automatically stored up to30The result of heaven;

16.Measurement accuracy: ±5%；

17.resolving power:0.01mg/L

18.Power supply mode:AC 100V～220VWide pressure input;

19.Dimensions: Length*wide*high415mm*325mm*125mm；