Standard specifications - PR-21-S

PR-21 Series User Guide

Document code
IM-EN-PR21S
Revision
C
Language
English
Product
PR-21-S
Document type
User guide
Table 1. Standard specifications

Feature

Specification

Refractive index range

Low range R.I. 1.320 … 1.460

High range R.I. 1.380 … 1.530

Max. span Low range R.I. 0.11

Accuracy

Typically ±0.1% by weight (depending on the process medium).

Repeatability and stability correspond to accuracy

Speed of response

1 s undamped, damping time selectable up to 5 min

Calibration

With Cargille standard R.I. liquids

Temperature compensation

Automatic, digital compensation

Instrument verification

According to ISO 9000 quality system with standard R.I. liquids and transmitter's menu guided procedure

Process temperature

max. +150 °C (+300 °F) (for higher temp. consult factory)

Ambient temperature

−20 °C … +45 °C (−4 °F … +113 °F)

Indicating transmitter: max. +50 °C (+122 °F), min. 0 °C (+32 °F)

Process pressure

Flange connections up to 25 bar (350 psi), Sandvik clamp static pressure up to 20 bar (300 psi)/operational pressure up to 10 bar (150 psi)

Sensor protection class

IP65, Nema 4X
SENSOR PR‑21‑S‑LPL/LPS (LONG PROBE)

Process connection

L‑clamp, 88 mm; DIN‑flange 2656. PN 25, DN80; ANSI‑flange,150 psi, 3 in; ANSI‑flange, 300 psi, 3 in; JIS‑flange, 10K 80 A
Process wetted parts AISI 316L stainless steel, prism gaskets Kalrez (prism pads teflon)
Sensor insertion length

‑LPL = Long probe 302 mm

‑LPS = Long probe 150 mm

Sensor weight

L‑clamp 7 kg (15 lbs)/flange DIN/ANSI/JIS 10.5 kg (23 lbs)
OPTIONS Prism wash, intrinsic safety and hazardous area approvals