Portable colorimeters for measuring a wide variety of samples.



  • Simple Menu Driven Display
  • Pre-Programmed Tests, User Tests
  • Automatic Wavelength Selection
  • Large Display Screen

Portable Colorimeter Product Description

The CODPlus Portable Colorimeter is a user-friendly portable colorimeter that is an ideal direct reading colorimeter for complete on site water analyses. All pre-programmed tests can be run on the compact portable colorimeters and each test features automatic wavelength selection. The entire multi-LED optical system is embedded in the light chambers and optimized for the portable colorimeter’s test reagent systems. You can simply select the test and put in the sample with reagent. The portable colorimeter’s microprocessor, which selects the wavelength, also allows you to load up to 10 tests for analyzing custom reagent systems.

The CODPlus Portable Colorimeter uses a simple menu driven display to show the user the over 25 pre-programmed tests on the large 4 line LCD screen. The portable colorimeters are also able to display an over/under range diagnostic error message. The portable colorimeters have an integral datalogger that can be accessed via the SMARTLink 2 software and the RS232 port built into the colorimeter’s housing. An optional carrying case is available for all portable colorimeters.

Portable Colorimeter Specifications

Instrument Type: Colorimeter
Readout: Graphical 4 line, 16 character per line LCD
Keypad: 6-button membrane switch
Wavelengths: 430nm, 620 nm
Wavelength Accuracy: + 2nm
Readable Resolution: Determined by reagent system
Wavelength Bandwidth: 10nm typical
Photometric Range: -2 to +2A
Photometric Precision: + 0.001A
Sample Chamber: Accepts 25 mm diameter flat-bottomed test tubes, 10 mm square cuvettes, 16 mm COD test tubes
Light Sources: 2 LEDs
Detectors: 2 silicon photodiodes with integrated interference filters
Modes: Absorbance, pre-programmed tests
Pre-Programmed Tests: YES, with automatic wavelength selection
User Defined Tests: Up to 10 user tests can be input
Data Logger: 350 test results stored for download to a PC
RS232 Port: 8 pin mini-DIN, 9600b
Power: 9 volt alkaline or AC adapter
Line Operation: 110/220V AC; 50/60 Hz with adapter, 6V 500 mA DC
Dimensions: (LxWxH) 8.5 x 16.2 x 16.7 cm, 3.4 x 6.4 x 2.6 inches
Weight: 312 g, 11 oz (meter only)

Portable Colorimeter Options

CODPlus Portable Colorimeter (120V/60Hz) (PN# DL1922)
Includes 4 sample tubes, COD adapter, and AC adapter.

CODPlus-EX2 Portable Colorimeter (230V/50Hz) (PN# DL1923)
Includes 4 sample tubes, COD adapter, and AC adapter.

1919-GCS440 Portable Colorimeter Large Field Carrying Case (PN# DL1960)

SMARTLink 2 Portable Colorimeter Software on CD (PN# DL2001)
Interface the CODPlus Portable Colorimeter with a Windows-based personal computer.  The program can be used to download data stored in the dataloggers of the meter.  The program allows the user to identify, organize, view, manipulate and store data as a database on a PC.  Data can also be copied and pasted or exported to other applications as and ASCII tab delimited text file.


251100 pHotoFlex Portable Photometer
LED filter portable photometer with integrated pH functions for field use.  Portable Photometer only, no electrodes.

250201 photoLab 6100 (VIS) portable spectrophotometer
Includes case, meter, and 12V car adapter cable.

WQ Water Quality Sensors