Light Transmission and Opacity Tester for Tank Material

Photometric tester that measures how much light passes through the wall of a water storage tank sample. Used to confirm that tanks inhibit algae growth in stored water.

Specification

A tank wall sample is placed between a stable light source and a detector, and the percentage transmitted is recorded. Low transmission is required for tanks to prevent algae and bacterial growth. The instrument is a simple check for multi-layer tanks with black inner layers.

Features

• Stable LED light source
• Silicon photodiode detector
• Display of percent transmission
• Sample holder for 50 mm discs
• Zero and span calibration

Technical Specifications

Range	0 - 100 % transmission
Resolution	0.01 %
Light Source	White LED 400 - 700 nm
Sample Size	50 mm disc or larger plate
Standards	IS 12701 light transmission clause, ASTM D1003 (principle)
Power Supply	230 V AC, 50 Hz

Standard Accessories

• Calibration filter
• Sample holder