Vaisala K-PATENTS PR-23 Series, Instruction Manual, Page: 92 / 246

82 PR-23 instruction manual
9.3.3 PR-23-AC specifications
General specifications
Refractive Index range: Full range n
D
1.3200–1.5300 (corresponds to hot
water – 100 Brix)
Accuracy: Refractive index n
D
± 0.0002 (corresponds typi-
cally 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 (US Patent No. US6067151)
Digital measurement: 3648 pixel CCD element
Light source: Light emitting diode (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: Sensor: max. 45 °C (113 °F),
min. -20 °C (-4 °F)
Indicating transmitter: max. 50 °C (122 °F),
min. 0 °C (32 °F)
SENSOR PR-23-AC: Compact sensor model for small pipe lines
Process connection: Sanitary 3A-clamp 2.5"; Varivent
®
in-line access
unit clamp DN65 or via elbow flowcell (for line
sizes of 2.5" and smaller)
Sanitary design: 3-A Sanitary Standard 46-03 approved and
EHEDG (European Hygienic Engineering & Design
Group) certified (connections -H, -E, -N)
Process pressure: Sanitary clamp max. 15 bar (200 psi) at 20 °C (70 °F)/9 bar
(125 psi) at 120 °C (250 °F)
Process temperature: -20 °C–+130 °C (-4 °F–+266 °F)
Process wetted parts, standard: AISI 316L stainless steel, prism spinel, prism gas-
kets MTF (Modified Teflon)
Sensor protection class: IP67, Nema 4X
Sensor weight: 2.0 kg (4.4 lbs)