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DGS-450 Multi-parameter water quality analyzer

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DGS-450 Multi-parameter water quality analyzer

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Product Description

main feature:

Using four LED light sources of 420nm, 470nm, 620nm and 700nm, it has long life and high precision;
Built-in measurement methods: ammonia, high concentration COD, low concentration COD, total phosphorus, total nitrogen;
Adopting high-definition LCD screen, clear display and friendly operation interface;
Supports functions such as automatic shutdown, power-off protection and factory reset;
Support firmware upgrade function, allowing function expansion and personalized requirements;
IP65 protection level.

Intelligent detection:

Intelligently determines the end point and supports automatic reading;
Set the dilution ratio and automatically calculate the original concentration of the sample;
Optional built-in calibration curve or customized calibration curve (2~5 points);
Supports recalibration of a certain calibration point.

Data management:

Support data storage (500 groups each), review, deletion, transmission and printing;
Comply with GLP and achieve data traceability;
Built-in small printer, can print automatically, and the printing format is optional;
Support U disk data export;
It has RS-232 and USB interfaces and can be connected to PC through special communication software to realize data transmission.

Specifications:

model		DGS-450
Test items		Ammonia nitrogen, low concentration COD, high concentration COD, total phosphorus, total ammonia
Ammonia nitrogen	Measurement methods	Nessler's reagent method
	Measuring range	(0.000-10.00)mg/L, can be expanded to 100.0mg/L
	error	5%
	Repeatability	≤2%
	stability	<0.200mg/L (20min)
	The detection limit	≤0.03mg/L
	wavelength	420nm
	Need to be digested	/
Low concentration COD	Measurement methods	potassium dichromate method
	Measuring range	(0.000-150.0)mg/L
	Error	±8%
	Repeatability	≤3%
	Stability	<6mg/L(20min)
	Wavelength	470nm
	Whether to dissolve	Need to be digested
High concentration COD	Measurement methods	potassium dichromate method
	Measuring range	(0-1500)mg/L, expandable to 15000mg/L
	Error	±8%
	Repeatability	≤3%
	Stability	<6mg/L(20min)
	Wavelength	620nm
	Need to be digested	Need to be digested
total phosphorus	Weight measurement method	Molybdate spectrophotometry
	Measuring range	(0.000-1.000)mg/L, can be expanded to 10.00mg/L
	error	10%
	Repeatability	≤3%
	stability	<0.050mg/L(20min)
	The detection limit	≤0.05mg/L
	wavelength	700nm
	Whether to dissolve	Need to be digested
total nitrogen	Weight measurement method	Alkaline potassium persulfate digestion-sodium chromophore
	Measuring range	(0.000-30.00)mg/L, can be expanded to 300.0mg/L
	error	≤10mg/L: ±1 mg/L; >10mg/L:±5%
	Repeatability	≤3%
	The detection limit	≤1mg/L
	wavelength	420nm
	Whether to dissolve	Need to be digested
Absorbance	Measuring range	(0.000~2.000)Abs
wavelength	Measure wavelength	420nm, 470nm, 620nm, 700nm
wavelength	Accuracy	±4nm
Transmittance	Indication error	±2%
Transmittance	Repeatability	≤ 0.5%
data storage		500 sets of test results each
cuvette		25mm colorimetric tube, 16mm colorimetric tube
power supply		Power adapter (input AC: (100~240)V, output: DC24V
Dimensions (mm); Weight (kg)		302x205x122, 1.33