Yokogawa sales organization. Operational safety cannot be ensured in the event Use of improper materials through the customer of any improper or not intended use. Rota Yokogawa may result in heavy corrosion and/or erosion • The customer is fully responsible to select is not liable for damage arising from such use.
The warranty terms for this device are described in earthquake, storm, flooding or lightning. the quotation. If a defect for which Yokogawa is responsible occurs 1.6 Principle of measurement in the device during the warranty period, Yokogawa will repair that defect at its own cost. If you believe...
All units are thoroughly tested before shipping. Please check the received units visually to ensure that they have not been damaged during transport. In case of defects or questions please contact your nearest YOKOGAWA service centre or sales office. Prevent foreign objects from entering the tube (e.g. by covering the openings).
• If the RAKD is operated outside the given viscosity independent range, the viscosities at the previous and new state of operation as well as the mass and diameter of the float have to be taken into account. To establish a new scale, please contact your Yokogawa representative. 4.2 Pulsation and pressure shock To avoid damage of the float and the stopper do not use magnetic valves.
Precision problems with the mechanical housing: execute test acc. fig. 6-3 If the indicated countermeasure do not remedy the fault or in case of troubles which cannot be remedied by the user, please contact your YOKOGAWA service center. Test 1...
6.2 Sending an instrument back to service Installation and operation of the Rotameter RAKD in compliance with this manual is generally failure-free. In case a RAKD has to be sent for repairs or checking to our service, please observe the following:...
Registration Document: ML041200703XN3 Option /ES1 must be selected. Same data as IECEx-certified type (/ES1) For export to Taiwan please contact your Yokogawa representative regarding Taiwan Safety Mark. 7.11 Intrinsically safe PESO (India) certified RAKD (/KS1 + /Q11) Identification No.: P2092401 Same data as ATEX-certified type, option /KS1.
Systems Installation WARNING The contents of this appendix are cited from exida.com safety manual on the Rotameter RAKD Flowmeter specifically observed for the safety transmitter purpose. When using the RAKD for Safety Instrumented Systems (SIS) application, the instructions and procedures in this section must be strictly followed in order to preserve the meter for that safety level.
• Measurement instrument to verify output status of the limit switches The person(s) performing the proof test of the Yokogawa RAKD variable area flowmeter should be trained in SIS operations including bypass procedures, flowmeter maintenance and company management of change procedures.
The expected lifetime of the Yokogawa Rota Yokogawa RAKD variable area flowmeter is 10 years. The reliability data listed in A1.2.7 is only valid for this period. The failure rates of the Rota Yokogawa RAKD variable area flowmeter may increase sometime after this period. Reliability calculations based on the data listed in A1.2.7 for Rota Yokogawa RAKD variable area flowmeter lifetimes beyond 10 years may yield results that are too optimistic, i.e.
A1.4 Assessment results A1.4.1 Safety related parameters The following results have been obtained from the assessment report Report No.: ROTA YOKOGAWA 08/07-23 R002 Version V2, Revision R7, April 2018 issued by Exida. Average PFD values have been calculated assuming a Diagnostic Coverage (DC) of 99 %, a mission time of 10 years and a Mean Time To Restoration of 24 hours.
Need help?
Do you have a question about the ROTAMETER RAKD and is the answer not in the manual?
Questions and answers