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Alfa Laval Rotacheck Sensor

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Verification of Functionality and Coverage


Toftejorg Sanitary Rotacheck


Application
RotacheckToftejorg Sanitary Rotacheck represents an important tool for increasing quality assurance in tank cleaning, since it provides an electronic means of verifying the 3D impact coverage of the Toftejorg rotary jet head. The system is appropriate wherever rotary jet heads are employed in cleaning tanks. The signal generated by the system can be audible, visual or integrated into the customer's process control specification. Toftejorg Sanitary Rotacheck is particularly suited to industries where improved verification standards are required, e.g. PAT for pharmaceutical industry, food and beverage industries.

Working principle
The Toftejorg Sanitary Rotacheck sensor is precisely installed to detect the sweep and impact of fluid jets released as the rotary jet head performs its cleaning cycle. From the geared operation of the cleaning device, and by receiving the impact force from the jets, the sensor provides verification of satisfactory operation. The Rotacheck Sensor System is self adjusted according to the tank pressure.

Cleaning Pattern

Rotacheck Cleaning Pattern
The above shows the cleaning pattern achieved by a Toftejorg rotary jet head. Toftejorg Sanitary Rotacheck enables the user to confirm that this operation has taken place on individual tank cleaning cycles.

Standard Design
Welding adaptor for sanitary installation. 2 and 10 m (6 and 32 ft) cable for relay connection.

Rotacheck Sensor, ATEX approved, Category 1/2 for installation in zone 0/1 and 20/21.

Relay, ATEX approved, Category 2 for installation in zone 1/21.
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Materials
Sensor and diaphragm 316L (UNS S31603).
Option: Hastelloy

Technical Data
Pressure: . . . . . . . . . . . . . . . . . . . .0.1 - 2 bar (1.5 - 29 psi)
Max. overload pressure: . . . . . . . . . .15 bar (217 psi)
Max. repetition frequency: . . . . . . . . .For sensor function 2 Hz
Duration of electrical pulse: . . . . . . . . .Min. 1.0 sec.
Mounting: . . . . . . . . . . . . . . . . . . . .By clamping into the welding adapter or clamped directly on the Toftejorg SaniJet 20
Sensor cable: . . . . . . . . . . . . . . . . .2m/ 10m(6 ft / 32 ft) cable, 6 mm (0.24 inch), PVC, 2 x 0.75 mm2 shielded
Operating temperature: . . . . . . . . . . .-20 to 85 C (-4 to 185F)
Temperature on diaphragm: . . . . . . . .Max. medium 140 C (284F)
Enclosure: . . . . . . . . . . . . . . . . . . . .IP 67
Electromagnetic Noise: . . . . . . . . . . .Tested and approved according to EU EMC directive

Certificate
2.2 - 3.1.B - ATEX

Universal Relay Unit Technical data
Supply Voltage: . . . . . . . . . . . . . . . .24 - 115 - 230 V AC * 50 - 60 Hz
Power consumption: . . . . . . . . . . . . .Max. 4 VA
Enclosure: . . . . . . . . . . . . . . . . . . . .IP 54
Weight: . . . . . . . . . . . . . . . . . . . . .550 g (1.21 lb)
Mounting . . . . . . . . . . . . . . . . . . . .By clipping onto a 35 mm standard rail to DIN/EN 50022 or by screw fixing
Operating temperature: . . . . . . . . . . .-20 to 85C (-4 to 185F)
Max. external load, relay: . . . . . . . . . .250 V, 2A AC
PLC output: . . . . . . . . . . . . . . . . . .24 V DC,max. 50mA
Open collector output: . . . . . . . . . . . .Max. 50 V DC,max. 50mA
* DC relay are available on request

Conditions Relating to the EX-Approval
The Universal Relay must be placed outside the hazardous area, and the supply voltage for other kinds of equipment connected to the same current circuit must not exceed Um = 250 VAC. When installing the Sensor, please note that the electronics in the Sensor are galvanically connected to the housing for EMC regulations, and the Sensor must not be supplied from a source other than the Universal Relay.

Application of Sanitary Rotacheck
Rotacheck Application
 
Dimensions Installation of adaptor
Rotacheck Adapter Dims
 
Ordering
Please specify type of cleaning head to be used and confirm application suitability.
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