Product Viscosity Index Process Analyzer

Viscosity Index Process Analyzer

VI-4

Benefits

The only ASTM compliant viscosity index analyzer
Kinematic viscosities directly and continuously measured
Integral measurement of density
Integral calculation of viscosity index
Unparalleled temperature stability of ± 0.02 K
Hagenbach correction not necessary
No maintenance approach (no oil baths, no pumps)
Network and fieldbus communication

Marking

ATEX: II 2G Ex h IIC T3 Gb X
IECEx: on request
NEC 500: on request
NEC 505: on request
CEC Sec. 18: on request
TR CU: on request

Ambient Temperature

Description

To remain competitive, today’s refiners must employ all optimization and product control techniques available. The use of online physical property analyzers is one of the key features to reach those objectives because they measure important quality properties in the process directly. All fluids that fulfil the conditions of Newton’s friction law are referred to as Newtonian fluids. Their viscosity is a material constant, which is only dependent on pressure and temperature.
The viscosity index is a widely used and accepted measure of the variation in kinematic viscosity due to changes in the temperature of a petroleum product between 40 and 100°C. A higher viscosity index indicates a smaller decrease in kinematic viscosity with increasing temperature of the product.

Technology	continuously analyzing kinematic viscosities at 40 °C and 100 °C, capillary-type
Method	compliant with: ASTM D445, ASTM D2270, ASTM D341, DIN EN ISO 3104, IP 71
Sample at inlet	filtered 10 μm or 50 μm (depending on the viscosity measuring range), bubble-free max. viscosity 800 cSt at the lowest temperature (technical clarification required) (sample as coolant ≤ 10 cSt) 3.8 to 10 l/h (depends on variant) 3 to 14 bar (43.5 to 203 psi) 50 to 60 °C; changes ≤ 0,1 K/min
Sample at outlet	can handle back pressure (on request)
Electrical data	max. 8 (4 to 20 mA; 1000 Ω); active isolated on request 4 to 20 mA; 160 Ω 24 V DC; max. 0.5 A high: 15 to 28 V DC/low: 0 to 4 V DC 24 V DC; max. 0.8 A
Communication	MODBUS/RTU via RS485 or RS422 or FOC is MODBUS/TCP via FOC is ethernet available viscosity index (others on request) Alarm, Ready/Valid; Stream Selection, Validation Request, Reset
Ambient conditions	operation 5 to 40 °C (41 to 104 °F) storage -20 to 60 °C (-4 to 140 °F) operation 5 to 80 % relative humidity, non-corrosive; storage 5 to 80 % relative humidity, non-corrosive IP 54 (comparable with NEMA 13)
HMI	touch display 19" remote access on request cyber security operating system Windows10 enterprise LTSB Bartec Benke control software PACS
Process connections	tube fittings: typically Swagelok 6mm/12mm/18mm; others on request sample inlet up to 2 sample streams and 1 validation stream sample outlet vent line (if required) coolant (if required)
Weight and dimensions	approx. 600 kg (W x H x D) approx. 2540 x 1930 x 710 mm free space right: 150 mm/left: 100 mm