VAF instruments Viscosense 3 - 7. OPERATING INSTRUCTIONS; 7.1 INITIAL START-UP; 7.2 SHUT-DOWN ON HEAVY FUEL OIL; 7.3 SHUT-DOWN ON DIESEL OIL

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7. OPERATING INSTRUCTIONS
Figure 13
7.1 INITIAL START-UP
The initial start-up should always be done with diesel oil.
1. Fill the complete fuel system with diesel oil.
2. Open block valves (K and M) and bypass valve (L)
3. Allow diesel oil to enter the fuel system
4. Vent the fuel system
5. Start the booster pump in the fuel system and after approximately 15 minutes close bypass valve
(L)
6. Switch on power supply to the ViscoSense
®
3 system. Depending upon the viscosity of the liquid it
can take up to 30 seconds, before the first reading appears. This is due to the automatic signal
gain control.
7. Gradually change over to HFO.
7.2 SHUT-DOWN ON HEAVY FUEL OIL
Maintain heat tracing on the ViscoSense
®
3 sensor housing after shut-down, to prevent clogging of the
fuel to the sensor internal parts.
7.3 SHUT-DOWN ON DIESEL OIL
No special actions on the ViscoSense
®
3 unit are required.
7.4 ROUTINE START-UP
Make sure that the power is on.
No other special actions on the ViscoSense
®
3 unit are required.