product overview

The G70 portable multi parameter water quality analyzer adopts a suitcase design, which facilitates outdoor water sample measurement operations for users. It integrates digestion measurement, with a simple measurement process, accurate measurement results, and cost savings. Sealed catalytic digestion is used, followed by colorimetric measurement. The equipment is equipped with a 4.3-inch LCD screen and guided detection, reducing learning costs. Users can easily and quickly operate it to determine COD, ammonia nitrogen, total phosphorus, and total nitrogen, four types of water pollutants.

Detection Principle

The determination of COD adopts the closed catalytic digestion colorimetric method with a digestion tube, the determination of ammonia nitrogen adopts the Nessler's reagent colorimetric method, the determination of total phosphorus adopts the ammonium molybdate spectrophotometric method, and the determination of total nitrogen adopts the alkaline persulfate digestion spectrophotometric method. The water quality detection items are selected, and the imported cold light source emits a light source signal to the sensor. The data is processed by a RAM processor and directly fed back to the sample concentration value, which is displayed in mg/L.

Product Features

•Support the determination of four parameters: COD, ammonia nitrogen, total phosphorus, and total nitrogen.
•Measurement and digestion integrated design, built-in 12000mAh large capacity lithium battery, no need for external power supply for direct operation in the field.

•Imported solid-state cold light source with stable optical performance, no need for light source preheating, and a light source lifespan of up to 10 years.
•Equipped with Glos water quality intelligent detection system and data averaging calculation dozens of times per second.
•Functions such as automatic printing of test results, batch testing, and guided testing mode.
•The digestion colorimetric method is integrated, without the need to replace the colorimetric dish for detection, and the measurement method is simple and efficient.
•4.3-inch high-definition color screen, flat UI design.
•ABS material casing, high-strength, corrosion-resistant, and high-temperature resistant shell.
•Equipped with pre made reagents, only the water sample for testing needs to be added to the test tube and then digested for testing.

Technical Parameter

PRODUCT MODEL	G70 portable multi parameter water quality analyzer
Detection parameters	COD	Ammonia nitrogen	total phosphorus	total nitrogen
Measurement standards	HJ/T399-2007	HJ535-2009	GB11893-89	Color changing acid method
measuring range	0-15000mg/L	0-50mg/L	0-16mg/L	0-250mg/L
Anti chlorine interference	2000mg/L	－	－	－
limit of detection	5mg/L	0.05mg/L	0.02mg/L	0.25mg/L
Dissolving temperature	165℃，20min	No need to dissolve	120℃，15min	120℃，30min
detection time	25 minutes/10 samples	5 minutes/25 samples	20 minutes/10 samples	35 minutes/10 samples
repeatability	≤± 5％
Indication error	≤± 5％
Optical stability	≤± 0.001Abs/20 minutes (100000 hours lifespan)
Colorimetric method	(16mm) colorimetric tube
printer	Micro thermal printer
operating system	Equipped with Glos water quality intelligent detection system
screen display	Measurement: 4.3-inch high-definition color LCD screen, resolution: 3.5-inch full-color touch screen
Equipment functions	Water quality analysis, photometric measurement, data management, USB upgrade
Standard configuration testing	COD、 Ammonia nitrogen, total phosphorus, total nitrogen
Batch processing volume	6 pieces
Instrument power supply	12V lithium battery
Instrument charging	12V charger
work environment	5-40 ℃, ≤ 85% non condensing
Instrument dimensions	420mm×340mm×180mm
Instrument weight	8.2kg

Determination steps for COD total phosphorus and total nitrogen

Ammonia nitrogen determination steps