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| Title：COD-line analyzer |
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| Details： |
COD-line analyzer advantages
Long-term unattended automatic monitoring of water quality in a variety of COD; method COD on-line analyzer used with the national standard (GB11914-89) manual method has a very good correlation, easy than by environmental monitoring; COD online analyzer uses double platinum electrode titration, photometric vulnerable to effectively overcome the shortcomings of watery color, turbidity, suspended solids affected; COD Online Analyzer automatically cleaned daily, auto-correction; strong chlorine ion masking capabilities, can be analyzed with CL-20000mg Sewage / L or less; separate digestion tank, the instrument electronic components from corrosive chemicals, greatly improving the life of the instrument; supporting independent research sample pretreatment system to prevent pipe blockage, automatically cleaned after each sample is completed ; fault diagnosis intelligent design, management and maintenance of the instrument is very convenient.
COD line analyzer measurement principle:
Water samples with a certain amount of potassium dichromate as the oxidant and silver sulfate as catalyst, mercury sulfate as a masking agent, medium strong acid reflux after oxidation, the titration cell with anti-ferrous ammonium sulfate titration of excess dichromate potassium, double platinum electrode determines the end, water samples must be reducing the amount of material consumed by the amount of oxygen consumed ferrous ammonium sulfate calculated.
COD line analyzer performance:
used Reflux. National standard (GB11914-89) and has a very good manual method correlation.
double platinum electrode titration, photometric vulnerable to effectively overcome the shortcomings of watery color, turbidity, suspended solids impacts.
using air reflux overcome the installation of water tanks reflux bulky devices.
novel electric design, digestion temperature and digestion time can be effectively controlled to ensure a higher oxidation rate, while overcoming Digestion sophisticated pressure control, explosion-proof equipment.
PLC control circuit, the control circuit to solve the reliability, versatility problem.
power protection designed to ensure that the equipment is not damaged, and data recording and never lost.
complete interface design and supporting software for easy instrument and meter, control systems and central monitoring computer connection can accept remote commands.
fault diagnosis intelligent design, management and maintenance of the instrument is very convenient.
COD line analyzer specifications:
Measuring principle: potassium dichromate oxidation titration
Measuring range: 0 ~ 7000mg / L, is divided into six ranges file (which can be carried out according to the actual situation of water samples range switching)
Measurement interval: 1 to 120 minutes optional
5% ≥ 100mg / L, <measured value: Repeatability
<100mg / L time, <± 5mg / L
10% ≥ 100mg / L, <measurements: accuracy
<100mg / L time, <± 5mg / L
Control Unit: PLC
Display unit: 7 inches touch screen
Analog output :4-20mA or 0-20mA optional (load ≤ 650 ohms)
Communication Interface: RS-232 4-20mA
Power source: AC 220V ± 10%, (50 ± 1%) HZ
Humidity: 5 ℃ -40 ℃; quite humidity (65 ± 20)%
COD line analyzer specifications:
Dimensions: 600mm × 460mm × 1430mm (L × W × H)
Overall weight: about 100kg
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