5B-3B type COD multi parameter water quality analyzerDetailed product description：

Function of 5B-3B COD multi parameter water quality analyzer:

(01) Accurately measure COD, ammonia nitrogen, total phosphorus, turbidity, etc
(02) 99 standard curves in memory can be self adjusted and saved
(03) The instrument can automatically calculate and store 10 regression fitting curves
(04) Can accurately store 999 measurement results (including measurement time, call curve, numerical value)
(05) Print current data and all stored historical data
(06) Transfer current data and all stored historical data to the computer
(07) The digestion temperature automatically adjusts and controls the constant temperature with the number of loads, achieving true constant temperature control
(08) Automatic constant temperature reminder, automatic countdown reminder, timing time can be adjusted and saved freely
(09) 3 sets of independent timing systems, which can be operated by 3 people simultaneously (optional for users)
(10) Can be extended for use with advanced intelligent spectrophotometers to determine the following parameters using photometric methods

Technical Indicators:

(01) Temperature control range: 60-200 ℃
(02) Measurement range: COD: 2-5000mg/L Ammonia nitrogen: 0.02-60mg/L Total phosphorus: 0.02-5mg/L (segmented)
(03) Batch processing sample: 12/25/36 (optional)
(04) Anti chlorine interference: [Cl -]<1000mg/L [Cl -]<10000mg/L (optional)
(05) Accuracy: COD=20mg/L V<10% COD=200mg/L V<4.3%
(06) Wavelength range: 380-1000nm
(07) Wavelength accuracy: ± 2nm
(08) Number of curves: 99
(09) Storage data: 999 pieces
(10) Timer switches: 3/9 (optional)
(11) Display mode: LCD
Standard configuration: Reactor (12 well digester), cooling tank rack, colorimetric dish rack, dedicated solid reagent, semi-automatic liquid dispenser, several dedicated reaction tubes, printing paper.

Determination by photometric method:

number	Measurement project	Measurement range	unit
(1)	turbidity	3—1000	degree
(2)	sulfide	0.02 —4	mg/L
(3)	cyanide	0.004—1	mg/L
(4)	ammonia nitrogen	0.02—60	mg/L
(5)	sulfate	8—85	mg/L
(6)	boron	0.1—1.0	mg/L
(7)	Free chlorine and total chlorine	0.05—1.5	mg/L
(8)	fluoride	0.05—1.80	mg/L
(9)	iodide	1 —10	ug/L
(10)	Nitrate nitrogen	0.02 —2.0	mg/L
(11)	Silver	0.02—1.4	mg/L
(12)	arsenic	0.0004—0.5	mg/L
(13)	barium	0.06—3.0	mg/L
(14)	beryllium	0.001—0.028	mg/L
(15)	cobalt	0.02—0.16	mg/L
(16)	hexavalent chromium	0.004—1	mg/L
(17)	copper	0.02—0.60	mg/L
(18)	mercury	2—40	ug/L
(19)	manganese	zero point zero five	mg/L
(20)	nickel	0.1—4	mg/L
(21)	lead	0—75	ug/L
(22)	antimony	0.05—1.2	mg/L
(23)	zinc	zero point zero zero five	mg/l
(24)	vanadium	0.018—10.0	mg/L
(25)	thorium	0.008—3.0	mg/L
(26)	uranium	0.0013—1.6	mg/L
(27)	Volatile phenol	0.1 —10	mg/L
(28)	Aniline compounds	0.03—50	mg/L
(29)	Nitrobenzenes	0.1—70	mg/L
(30)	formaldehyde	0.05—3.33	mg/L
(31)	Trichloroacetaldehyde	0.02 —5.6	ug/ml
(32)	Total Phosphorus	0.001—5	mg/L