Economical type BI-680 online dissolved oxygen meter DO controller

FOB Reference Price:Get Latest Price
$200.00 - $800.00 / Sets | 1 Set/Sets (Min. Order)
Lead Time:
Quantity(Sets) 1 - 3 >3
Est. Time(days) 7 Negotiable
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Quick Details
Place of Origin:
Shaanxi, China
Brand Name:
Model Number:
Dissolved Oxygen range:
Dissolved Oxygen accuracy:
Dissolved Oxygen resolution:
% Saturation of Oxygen range:
Communication Interface:
Signal Output:
Max. 500Ω
Pressure Correction:
60.0~112.5kPa, 450~850mmHg
Supply Ability
Supply Ability:
800 Set/Sets per Month
Packaging & Delivery
Packaging Details
qualified wooden package/standard carton package with perfect inner protection
Shanghai, Xi'an
Lead Time :
Quantity(Sets) 1 - 3 >3
Est. Time(days) 7 To be negotiated

         Economical type BI-680 online dissolved oxygen

                              meter DO controller



Product Description

 Introduction of BI-680 online dissolved oxygen meter:


Economy online dissolved oxygen controller, 1 or 2 points calibration, 4 to 20mA output signals. The meter is suitable for monitoring the dissolved oxygen concentration and percentage saturation in the water.



Features of BI-680 online dissolved oxygen meter:


• Economical online dissolved oxygen controller is equipped with a polarographic electrode.

• 1 or 2 points calibration using the air-saturated water or zero oxygen solution.

• Manual salinity and barometric pressure compensations improve the measurement accuracy.

• Automatic Temperature Compensation ensures accurate reading over the entire range.

• Low and high alarm limits can be set by user and automatically activate an external device.

• 4 to 20mA output signals meet the industry standards.

• Setup menu allows setting the 10 parameters, including the number of calibration points,

   measurement unit, alarm limits, hysteresis value, etc.

• Reset feature automatically resumes all settings back to factory default options.




Technical parameters:



   Dissolved Oxygen 
   % Saturation of Oxygen 
   Signal Output4~20mA
   LoadMax. 500Ω
   Low and high alarm limits0.00~20.00mg/L, selectable
   Communication InterfaceRS485
   Connection TerminalsDetachable screw terminals
   Calibration Points1 or 2 points
   Temperature Compensation0~40°C, 32~104°F, Automatic
   Pressure Correction60.0~112.5kPa, 450~850mmHg
   Salinity Correction0~35g/L
   Environmental ConditionsAmbient temperature<60°C, relative humidity<80%
   Power RequirementsDC24V


Order information:


Order CodeAccessories
   BI-680IE-80T industrial dissolved oxygen probe
DO electrolyte solution
DO membrane cap
Packaging & Shipping


Our Services

Warranty Service


From the date of acceptance, we can provide 12 months quality guarantee, all the maintenance costs and accessories parts costs are free within the date of quality guarantee (spare and accessories parts costs from instrument faults by human factors will be charged proper costs).


After the date of quality guarantee, we will in charge of maintain instrument, and charge proper costs according to actual maintenance costs.


Company Information

Company information



Our motto: First-Rate Service, First-Rate Quality.

Xi’an Heb Biotechnology Co., Ltd, is established in 2004, has passed more than 10 years, is a technological innovation-based enterprise provided with integration of research, develop, manufacture and marketing. Nowadays, our products has gotten extensive application in Asia, European and America, even spread all over domestic laboratories. The brand of Xi’an Heb has become one of the popular and reliable brands among our customers.



Main instruments in our company: double-layer glass reactor ( jacketed glass reactor), rotary evaporator, low-temperature cooling liquid circulating pump (DLSB refrigerated circulator or chiller), multi-purpose circulating water vacuum pump, high and low temperature circulating system, high temperature oil bath(heating circulation bath), diaphragm vacuum pump, rotary vane vacuum pump, water bath/oil bath series, incubator series, drying oven series, centrifuge series, ultrasonic cleaner series etc. These scientific experimental instruments and industrial assorted equipment amount to more than 10 series and 100 types. Our products passed ISO9001 International Quality System Certification,and some products passed CE certification. 


Welcome new and old customers to our factory, and we guarantee that our products have high-quality and more favorable price.


HEB wants to joint hands with you to create more precise experimental instruments.



1. Are you the factory?


Yes, we’re.

Established in 2004, we manufacture rotary evaporator, cylindrical jacketed reactor, cryostat etc.

In 2006 year, we associated with our soul partner QiXin instrument, developed commonly new production line, now, we manufacture CO2 Incubator, Cooling Incubator, Shaker Incubator, Blast Oven, Vacuum Oven, Climatic chamber and those products. Etc.


2. What is the delivery time?


Normally, we have stocks for our hot sale products, the delivery time is about 5-10 days. For the customized instrument, it’s about 10~20 days. 


3. What’s the warranty period? How do you provide this?


One year (12 months).

We have very strict inspection, the instruments which you received is high-quality and reliable.

If there’s any error, we’ll provide you the on line solution with in 12 hours. We’ll provide you the spare parts and the shipping cost totally free.

If the problem was caused by the instrument quality, and cannot be repaired, we’ll ship you the new one.


Contact us

Xi'an HEB Biotechnology Co., Ltd.      


Add: No.3 Kechuang road, Yanta District, Xi'an city, Shaanxi, China

MT.: 86-15889795354

Tel: 86-029-88607291(Direct line)

Fax: 86-029-88265264

E-mail: wendy(AT)

Skype: +86 15889795354