Vaisala PR-23 Series User Manual

Feature Specification
Instrument v
erification With certified refractive index liquids and Vaisala
documented procedure
Ambient temperature −40 °C … 45 °C (−40 °F … 113 °F)
Table 35 Sensor PR‑23‑GP specifica
tions
Feature Specification
Sensor PR‑23‑GP Probe sensor for large pipe line and vessel installation
Process connection Flanges: ANSI 3 in 150 lbs or DIN 80 PN 25 or JIS 10K
80A; or L clamp 88 mm
Process pressure Flange connections up to 25 bar (350 psi)
Process temperature −20 °C … +150 °C (−4 °F … +302 °F)
Process wetted parts, standard AISI 316 L stainless steel, spinel prism, prism gaskets
MTF (Modified T
eflon)
Sensor protection class IP67, Nema 4X
Protection class Protection class 3
Sensor weight Aluminum sensor cover with clamp/
flange
4.0 … 9.0 kg (8.8 … 19.8 lbs)
Stainless steel sensor cover with clamp/flange
5.9 … 10.9 kg (13.0 … 24.0 lbs)
10.6.3 PR
‑23‑GP thermal cover PR‑7062
The thermal cover prevents heat flow between process and ambient surroundings. It helps
to maintain the sensor tip and the prism surface at process temperature and may reduce
prism coating. Use thermal cover when the temperature
dierence between the process and
the ambient is more than 30 °C or when the process temperature is over 60 °C.
PR-23 Series User Guide
IM-EN-PR23-E
134

Vaisala PR-23 Series Specifications

General

Brand	Vaisala
Model	PR-23 Series
Category	Measuring Instruments
Language	English