Model Description
‑GC Graphite cast iron
Valve body lining material
‑ETFE ETFE (ethylene tetrafluoroethylene)
‑PFA PFA (fluorinated ethylene propylene)
Example: Valve body: SVB‑A040‑GC‑ETFE
10.9.2 PR‑23‑W specifications
Table 51 General specifications
Feature Specification
Refractive index range, standard Full range n
D
1.3200 … 1.5300, sapphire prism
Refractive index range, option n
D
1.2600 …1.4700 with sapphire prism H74
Accuracy Refractive index n
D
±0.0002 (corresponds typically to
±0.1 % by weight)
Repeatability and stability correspond to accuracy
Speed of response 1 s undamped, damping time selectable up to 5 min
Calibration With Cargille certified refractive index liquids over full
range of n
D
1.3200 … 1.5300
CORE‑Optics No mechanical adjustments
Digital measurement 3648 pixel CCD element
Light source LED 589 nm wavelength, sodium light
Temperature sensor Built‑in Pt‑1000
Temperature compensation Automatic, digital compensation
Instrument verification With certified refractive index liquids and Vaisala
documented procedure
Ambient temperature −20 °C … 45 °C (−4 °F … 113 °F)
Table 52 Sensor PR‑23‑W specifications
Feature Specification
Sensor PR‑23‑W Saundersâ body sensor for aggressive process
medium
Process connection With PFA (Fluorinated ethylene propylene) or ETFE
(Ethylenetetrafluoroethylene) lined Saunders valve
body 2 in, 3 in or 4 in
Process pressure Max. 10 bar (145 psi)
Chapter 10 – Sensor specifications
157
To Next Page
Loading...
Need help?
General
