Environmental & Scientific Instruments Co.
Environmental & Scientific Instruments Co.


Contact Us

Plot – 123, Industrial Area, Phase – II, PANCHKULA, Haryana - 134113, India

Mobile : +91-9216626616

Phone : +91-172-5033251

Fax : +91-172-2591407

Call Us : 08043692865

Microprocessor Photo Colorimeter-1311

Microprocessor Photo Colorimeter 1311 is a compact and easy to operate instrument for Photo Colorimeter analysis of any concentration. The output is available on a 3 digit seven segment red LED display in terms of %Transmission (%T), Absorbance (Abs.). This instrument has the facility for auto zeroing of Absorbance and setting 100% Transmission. The use of microcontroller has made it extremely versatile and state-of-the-art instrument. 10 mm pathlength matched test tubes are used for sample and blank.

The instrument operates at wavelength between 400 to 700 nm range. The use of high standard wide range glass filters covering 400 to 700 nm in the monochromator gives extremely good results. The filter setting is controlled by a rotating disc having 8 filters. An automatic shutter is provided to stop the light reaching the sensor, when test tube is not inserted in the tube holder. This increases the life of sensor tremendously.


  • Transmission and Absorbance Modes
  • Auto Zeroing Facility
  • Highly Accurate & Stable
  • Range 400 to 700 nm
  • Soft Touch Membrane keys

Additional Information

Product Code Microprocessor Photo



Wavelength Range 400 to 700 nm
Resolution %T: 1, Abs: 0.01
% Transmission 0-100%
Absorbance 0-1.99
Photo Detector wide range Silicon Photocell
Display 3 digit bright red seven segment LED display
Keyboard 2 Keys, Soft touch membrane type
Auto Zeroing Available (for Abs.) and 100% for %T
Light Sources 6.3V, 0.3Amp Tungsten Lamp
Solution Volume 1 ml (Minimum)
Sample System 10 mm pathlength matched glass test tube
Filters 400, 450, 490, 520, 540, 570, 620, 680 nm filters mounted on turret
Power 230V ±177;10% AC, 50Hz
Weight 2 1/2 Kg (Approx.)
Accessories Matched Test Tube: (A set of 5), Spare Lamp, Operation Manual and Dust Cover

Note : Specifications are subject to change due to continuous improvements.