The Pocket Colorimeter™ II or DR300 came with glass and plastic sample cells. Which ones should be used?
Sample cells for Pocket Colorimeter II and DR300
The different sample cells correspond to different concentration ranges in the instrument. Many Pocket Colorimeters have a low and high range. For example, the DR300 for Chlorine (Product # LPV445.97.00110) measures chlorine in a low range mode from 0.02 - 2.00 mg/L Cl2, and in a high range mode from 0.1 - 8.0 mg/L Cl2.
The step-by-step procedure is different for the low vs. high range.
- Glass sample cells should be used when measuring in the low range mode
- Plastic cells should be used when measuring in the high range mode.
Note: The plastic cell used with older model Pocket Colorimeters will not fit correctly in the Pocket Colorimeter II or DR300. Use Sample Cell: 1" Round Plastic 10 mL with 1cm Pathlength (Product #4864302) with the Pocket Colorimeter II and DR300.