Refractometer structure - PR53 - PR53AC - PR53AP - PR53GC - PR53GP - PR53M - PR53SD - PR53W

PR53 Series User Guide

Document code
M212898EN
Revision
E
Language
English
Product
PR53
PR53AC
PR53AP
PR53GC
PR53GP
PR53M
PR53SD
PR53W
Document type
User guide
Figure 1. PR53 refractometer structure
1
Main circuit board
2
CCD Charge Coupled Device
3
Disc springs
4
CORE‑Module
5
Light source
6
Prism
7
Prism gasket
8
Integrated temperature sensor

The measurement prism (6) is flush-mounted to the surface of the probe tip. The prism (6) and all the other optical components are fixed to the solid CORE‑Module (4), which is springloaded (3) against the prism gasket (8). The light source (5) is a yellow LED, emitting light with 589 nm wavelength (Sodium D-line wavelength), which is a standard in refractive index values in literature. The main circuit board (1) receives the raw data from the CCD Charge Coupled Device (2) and the process temperature sensor (7), and then calculates the refractive index RI, the process temperature T, and process concentration according to a predefined concentration curve. This information is transmitted to the user with integrated analog output channel, digital Modbus RTU, or Indigo520 transmitter.