PH recorder ZDR-30 

 I. Overview: 
 I plant developed ZDR Series recorder PH PH value of aqueous solution is used for high-precision laboratory instruments, with the glass electrode and calomel reference electrode supporting the use of (but also with supporting the use composite electrode). The products are widely used in environmental protection, health care, chemical, pharmaceutical, power plants, food processing, aquaculture and other sectors. 
 Factory production of various types of PH meter are digital display, high accuracy, reliable operation and long life, the instrument addition to a "positioning", "Temperature Compensation", but also has a "slope adjustment", but also on conversion factor to correct the electrode. 
 According to actual demand, ZDR Series PH recorder data can be automatically recorded and saved, and to transfer data to computer analysis and processing. 

 Second, PH meter condition: 
 1, ambient temperature :0 - 40 ℃ 
 2, relative humidity: ≤ 85% 
 3, AC power supply: voltage 220V +22 V, frequency 50 +0.55 Hz 
 4, the measured solution temperature :5-60 ℃ 
 5, supporting the electrode: zero potential of the composite electrode 7PH or 331 332-type glass electrode and calomel reference electrode. 
 6, in addition to strong magnetic fields without outside interference. 
 7, no strong vibration. 

 Main technical indicators: 
 1, measuring range: PH value of 0 to - 14 
 2, accuracy: PH value: ± 0.1PH 
 3, the stored data :4940 --10,300 group 
 4, recording interval: 2 seconds -24 hours 
 5, the communication interface: RS-232 or USB 
 6, the software: Chinese and English versions 


 The use of methods 
 1, using the supplied communication cable to the recorder over to the general computer PC586) (connected to the serial port. 
 2, the recorder is running on the computer application, set the record start time recorder, record period, stop time, stop mode and other parameters. 
 3, undocked from the recorder after setting the connection with the computer, the recorder placed in a test is required of the occasion. 
 4, testing has been completed, then the recorder connected to the computer, run the recorder application to record data downloaded to the computer data processing. 

 Advantages: 
 We are the experts of Zhejiang University, professors, students, Dr R & D results into products of independent and learn the advantages and disadvantages of similar foreign products summarized the design, performance reached the international advanced level. In China, we have established a leading banner 
 Relative to some foreign products, we have a considerable price advantage and service system. Believe it is your trusted choice! 

 Features: 
 We can at your request, tailored to your needs for your equipment. Such as: the replacement of the sensor, extended, built-in, channel settings and add an external power supply, etc. 

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 Contact: Yu Jingli 13