K-Patents PR-01-S User Manual
Page 6

INSTRUCTION MANUAL FOR K-PATENTS PR-01-S (-AX/FM/CS)
DOCUMENT/REVISION No. INM 1/14
Effective: May 15, 2009
4
2.2. STANDARD SPECIFICATIONS
Refractive Index ranges:
Low range R.I. 1.320...1.460 
High range R.I. 1.380...1.530 
Max. span:
R.I. 0.08 (See Section 5.6)
Accuracy:
R.I. ± 0.0002 (corresponds typically to ± 0.1% by weight). Repeatability and 
stability correspond to accuracy. 
Speed of response:
0.8 s undamped
Damping time constant:
Selectable up to 5 min
Process temperature:
max. 150°C (300°F) (for higher temp. consult factory)
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)
Process pressure:
Flange connections up to 25 bar (350 psi) 
Sanitary clamp max. 15 bar (200 psi) at 20 °C (70 °F)/9 bar (125 psi) at 120 
°C (250 °F) 
Recommended flow velocity:
above 1.5 m/s (5 ft/s)
Wetted parts:
AISI 316L stainless steel, prism gaskets Kalrez (prism pads teflon)
Sensor weight:
Sandvik-clamp 7 kg (15 lbs)/ Flange DIN/ANSI/JIS 10.5 kg (23 lbs)
Process connection:
NS 80 (3" Sch 10s) (Sandvik clamp/Flange DIN/ANSI/JIS/Sanitary clamp)
Current output
4-20 mA/0-20 mA, max. load 1000 Ohm, Galvanic isolation 1500 V DC or 
AC (peak), Built-in hold function during prism wash. 
Serial output:
RS485/RS232 
Galvanic isolation 500 V DC or AC (peak) 
Power:
100-115 V/220-240 V, 50/60 Hz, 15 VA
Interconnecting cable:
Shielded cable, 2 twisted pairs with individual shields, 0.5 mm
2
.
Digital transmission according to RS485.
Interconnecting cable length:
Standard 10 m (33 ft), max. 100 m (330 ft)
Indicating transmitter:
Enclosure IP66 Nema 4X
Indicating transmitter weight:
4.5 kg (10 lbs)
Alarms:
Two built-in signal relays, max 24V, 500 mA
Options:
 - Long probe version (-LPL). Probe length is 152 mm (6") longer than 
standard. 
- Wetted parts: Hastelloy C, titanium or palladium doped titanium 
- Cable fittings to the Indicating transmitter: European cable glands or 
M20x1.5 metric cable glands or US conduit hubs, see Section 7.3. 
- Built-on prism wash nozzle, see Section 8.3. 
- Intrinsically Safe PR-01-S-AX/FM/CS, see Section 12. ATEX EX II 1 G / 
Cenelec Eex ia IIC T4;
Factory Mutual (FM) approved Class I, Div. 1,
Groups A, B, C, D T4 (T
amb
=45 °C); CSA certified for Class I, Groups A-D
Accessories:
- External output unit, Section 10.1 
- Digital Divert Control Unit DD-01, Section 10.2 
- Retractor and isolation valve, Chapter 11. 
- Prism wash nozzles for steam and hot water, Section 3.4. 
- Flow cells according to separate drawings available from K-Patents. 
 
(We reserve right to technical alterations.)
Ordering information: 
- Desired scale, properties of process solution 
- Process temperature and pressure range 
- Process flow range and pipe diameter 
- Desired process connection 
 
- Length of interconnecting cable 
- Supply voltage and frequency 
- Options and accessories 
- User tag 
