System Overview:
SEM9860-CH2OOnline water quality formaldehyde monitoring deviceIt is an embedded system controlled fully automatic online water quality formaldehyde online analyzer developed by Shanghai Yizhan Environmental Protection Technology Co., Ltd. It can be used for real-time online monitoring of formaldehyde content in various water qualities. After the sample is filtered, it is pumped into the reactor. First, a masking agent is injected to eliminate interfering substances. Then, the acidity of the solution is adjusted to have an appropriate pH, and a characteristic color developer is added to react with formaldehyde in water for color development. The absorbance of the reactants is measured; Calculate the formaldehyde content in the sample by measuring the absorbance.
System features:
The water sample pretreatment device adopts a maintenance free design, which can ensure that the maintenance cycle of the pretreatment device exceeds six months.
The chemical reaction time can be adjusted, and the measurement process and results comply with national standards.
The fully imported components and innovative analysis flow path design and reagent formula ensure the measurement reproducibility of *, and currently the measurement reproducibility can reach 5%.
◎ Fully automatic operation, no need for personnel on duty, can achieve intelligent functions such as automatic zero adjustment, automatic calibration, automatic measurement, automatic cleaning, automatic maintenance, self-protection, and automatic recovery.
The online monitoring methods are diverse, allowing for manual measurement at any time, automatic timed measurement, automatic periodic measurement, and other measurement methods.
◎ Automatic leakage alarm function, when a reagent leakage occurs, the instrument will automatically alarm and prompt the user to perform maintenance.
◎ Simple operation and maintenance, no need for professional training
The electrical and fluid parts are isolated and equipped with an embedded control system for fully automatic operation.
SEM9860-CH2OOnline water quality formaldehyde monitoring deviceTechnical parameters:
Measurement principle: Optical colorimetric method
Test range: 0~0.010.1110 100mg/L
◎ Measurement type: automatic timed measurement or manual measurement
◎ Measurement interval: can be set arbitrarily
Measurement time: approximately 20 minutes
Measurement accuracy: 5%
◎ Reproducibility: 5%
◎ Signal output: Standard 4-20mA analog output, load of 400 ohms or 0-5V, other RS485 or RS232 options available ◎ Sample temperature: no voltage; Sample temperature: 0-50 ℃
◎ Medication replacement: 3-4 weeks may vary depending on the operating temperature
◎ Environmental temperature: 5-40 ℃
◎ Protection level: IP55
◎ Power Supply: Power Supply: 220VAC
Weight: 35kg (excluding medication)
◎ Size: 500 mm x 750 mm x 350 mm