Armfield Instruction Manual
26
19. Set the Heater Control to ‘Thermostat’. On the top of the thermostat probe,
set the control dial to 60 (°C). Check that the heater begins to operate.
Set the Heater Control back to ‘Manual/PID Control’.
20. Set the Gear Pump Speed to 50%. The gear pump should begin to operate
and water to flow from the small process vessel to drain.
21. When the water level in the small process vessel drops below the tip of the
level sensor, the gear pump and the heater should both stop working and the
Level Low warning light should turn red. This shows that the safety cut-outs
are working.
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