DR900 Colorímetro portátil multiparamétrico (cloro libre, etc.)

Principle of Operation:

The DR900 multi-parameter portable colorimeter for free chlorine and other parameters uses the spectrophotometric method, utilizing the selective absorption of light at a specific wavelength by a substance to identify the substance or determine its concentration.

Industry Applications:

The DR900 multi-parameter portable colorimeter for free chlorine and other parameters is suitable for municipal wastewater, environmental monitoring, water treatment, industrial process monitoring, tap water, drinking water, boiler water, cooling water, education, agriculture, and other fields.

Instrument Features:

• The DR900 multi-parameter portable colorimeter for free chlorine and other parameters offers three reading modes: concentration, % transmittance, and absorbance.

• 90 measurement programs are pre-installed to meet multi-parameter measurement needs such as free chlorine, COD, TOC, ammonia nitrogen, etc. Users can create up to 10 custom measurement programs.

• A favorites menu for commonly used measurement programs can be set up for quick selection of your favorite measurement programs.

• It features blank adjustment and standard adjustment functions to correct for differences between different batches of reagents.

• Data storage capacity of up to 500 records, GLP compliant, with data transfer via USB interface.

• The screen features a backlight display function, making it easy for users to operate the instrument in dark places or under direct sunlight.

• Optional Chinese operation interface; indicator icons guide users through program or menu setup.

• Ergonomic design for easy operation; IP67 protection class, excellent drop resistance and shock resistance.

Technical Specifications

• Light source                           LED

• Detector                       Silicon photodiode

• Wavelength                     420,520,560,610nm

• Wavelength accuracy           ±1nm

• Photometric measuring range     0 - 2 Abs

• Reading modes                 Concentration, absorbance, % transmittance

• Pre-installed measurement programs     90

• User-defined curve function     Yes, up to 10

• Wavelength selection             Automatic selection

• Data storage                 500 records (GLP compliant, with result, time, date, sample ID, user ID)

• Interface languages             22, including Chinese

• Operating environment           10 ~ 40℃, max. 80% relative humidity (non-condensing)

• Storage environment           -30 ~ 60℃, max. 80% relative humidity (non-condensing)

• Protection class                 IP67

• Data interface                 Mini USB

• Display                       LCD backlit display

• Sample vial types             25mm round, 16mm round (adapter required)

• Battery type                   AA battery, 4 pcs

• Battery life                   Typically 6 months

• Dimensions                     231 x 96 x 48 mm

• Weight                       0.6kg

Ordering Guide

• Order No.                Description

• 2722000    Soft-sided carrying case

• 4942500    Hard-sided carrying case

• 4943000    CEL carrying case

• 2763900    Absorbance standards for DR/verification (set of 4)

• 2635300    SpecCheck secondary standards, gel, DPD chlorine, low range

• 2980500    SpecCheck secondary standards, gel, DPD chlorine, medium range

• 2893300    SpecCheck secondary standards, gel, DPD chlorine, high range

• 2712500    SpecCheck secondary standards, gel, fluoride, 0-2.00 mg/L

• 2708000    SpecCheck secondary standards, gel, ozone, medium range, 0-0.75 mg/L

• 2507500    SpecCheck secondary standards, gel, monochloramine and free ammonia

Source: Public information from the HACH Water Quality website