Specifications and installation requirements

Specification

IP66 certified according to EN 60529:1991/A2:2013

<70 dBA

Stainless steel

Stainless steel 316; Polytetrafluoroethylene (PTFE); Borosilicate glass, aluminum; Sealing materials: FKM or FFKM

200 µm
Low concentration of particles up to 500µm is tolerated

0 – 5.5 barg (gauge pressure of product being measured at point of connection)

10 – 40°C

5 – 60°C (temperature of incoming sample)

15-60 ± 0.2°C

40 – 40,000 mPa·s @ 10 [1/s] (shear rate)

< 5 ml

1-5 minutes (= new sample and measurement result every 1-5 minutes; customizable)

1. Viscometry (flow curve), 3 points of shear stress or viscosity vs. shear rate). And/or

2. Key parameters of models: Power law: Bingham, Hershel-Bulkley, Cassons and others (on demand)
3. Measuring Temperature.

Viscosity:
– Accuracy (FLUIDAN laboratory test): ±5%

– Precision (repeatability): ±2%

RheoStream^® FC is CE compliant according to

– EU machinery directive (MD – 2006/42/EC)

– EMC directive (2014/30/EU)

– Low Voltage Directive (LVD – 2014/35/EU)

– RoHS directive (2011/65/EU)

In order to enable fully automatic viscosity control, RheoStream^® should be installed directly downstream of a continuous mixer or directly on a mixing tank.

Distance from sample outtake (on tank or pipe) to inlet into RheoStream cabinet < 250mm.

The instrument must be mounted on vibration free rack.

The Mounting Rack is designed to be bolted into the floor (or ceiling).

24V DC 10A

Tubing material:
Polytetrafluoroethylene (PTFE), supplied with instrument.

Sample supply:

Factory pipe with sample stream is fitted with an outlet consisting of a short weld plug with 1/8 G to fit a plug valve

Alternatively (optional) a hygienic Keofitt M4 valve with connector kit (requires supply of pressurized air).

Cleaning liquid:

Supplied from the factory CIP or water system. CUSTOMER provides CIP/water (1-6 bar pressure), terminating with ball valve with 6 mm push-in pneumatic hose near instrument location.

The spent sample and spent cleaning liquid is Discarded into drain/sewer or into waste container on floor below instrument.

Cleaning is automatic.

Cleaning is initiated by the RheoStream program at times or frequencies to be specified (typically during holding time or batch change-over, when no measurement is needed).

Cleaning cycles takes 3-15 minutes, during which no measurements are made. Up to 500 ml of Cleaning Liquid is used for each cleaning cycle.

Three options are available:

1. WebGUI on PC/Tablet via Ethernet cable (standard)
2. Analog (4-20mA) / Digital control via PLC
3. MES/SCADA using digital OPC-UA protocol via Ethernet cable