K-Patents PR-03 - Manual (Page 93)

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8 Sensor specifications and other sensor information 87
8.7.2 PR-03-W specifications
General specifications General system specifications for a PR-03-W refractometer sensor
Refractive index range, standard R.I. 1.3100–1.5400 (corresponds to hot water–100 Conc% b.w.) with
spinel prism
Refractive index range, option R.I. 1.2600–1.5000 with sapphire prism
Accuracy R.I. ± 0.0002 (corresponds typically to ± 0.1% by weight).
Repeatability and stability correspond to accuracy.
Speed of response 1.2 s undamped
Damping time constant Selectable up to 5 min
Process temperature -20 ◦ C–100 ◦ C (-4 ◦ F–212 ◦ F)
Temperature compensation Automatic
Ambient temperature max. 45
◦
C (113
◦
F), min. -20
◦
C (-4
◦
F)
Humidity 20–100 %
Pollution degree Degree 2
Process pressure max. 10 bar (145 psi)
Recommended flow velocity 1.5–6 m/s
Protected by US Patent No. US6067151, German Patent No. DE19855218
Sensor
Wetted parts, standard
Teflon R PTFE, prism gasket Teflon R PTFE, prism spinel or sapphire,
O-ring Kalrez, adaptor sapphire
Sensor weight With 2” Saunders body 15 kg (33 lbs)/3” Saunders body 26 kg
(57 lbs)/4” Saunders body 33 kg (73 lbs)
Sensor protection class IP67, Nema 4X
Process connection With PFA (Fluorinated ethylene propylene) lined Saunders valve body
2", 3" or 4"
Temperature measurement Built-in Pt-100
Image detector 1024 pixel CCD-element
Light source Light emitting diode (LED)
Sensor housing AISI 316L stainless steel cover
Exproof Exproof by purging
Saunders valve body
Valve body material
Graphite cast iron
Valve body lining material PFA (Fluorinated ethylene propylene)
Process connection ANSI flange 4 inch 150 lbs / ANSI flange 3 inch 150 lbs /
ANSI flange 2 inch 150 lbs / DIN flange DN 100 PN 16 /
DIN flange DN 80 PN 16 / DIN flange DN 50 PN 16
Indicating transmitter See Chapter 9
Options − External output unit, Section 4.2
− Relay units for alarm, Section 4.1