Pentair HAFFMANS RPU-352 - PU Cut-off Temperature

HAFFMANS RPU 352, RPU 353, RPC 80 RPC 50
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Page 28 of 112 RPU 352, RPU 353, RPC 80, RPC 50
8.6 TEMPERATURE AT PASTEURISER EXIT
The moment that the instrument leaves the pasteuriser is judged by a rise in light
level from the relatively dark interior. Inspection lights inside the pasteuriser may
prevent this result from being calculated. The light sensor can be seen on the
front panel between the two left hand control switches, don’t cover this area with
tape or adhesive labels.
Your packaging specification may call for a maximum product exit temperature. If
the product leaves the pasteuriser at too high a temperature the flavour may be
impaired.
This result is shown for channel 1 only because that channel is assumed to show
the product temperature.
8.7 PU CUT-OFF TEMPERATURE
At or above this temperature PU’s are accumulated. Below this temperature they
are not. The cut-off temperature can be adjusted by using the key plug. More
details of the cut-off and the PU calculation are given in the “Key Plug” section.
Your packaging specification may call for a particular PU cut-off temperature to
ensure that pasteurising conditions are correct.
8.8 TIME ADDING PU’S
The total time during which the product temperature was high enough for PU’s to
be achieved and added to the total. The product temperature was at or above
the cut-off temperature for this length of time.
8.9 MAXIMUM PRESSURE Only for PRU-353
The maximum recorded gauge pressure.
Attention! Your container specification will show a maximum acceptable
internal pressure and exceeding it could lead to leakage or container
damage.
8.10 TIME NEAR MAXIMUM PRESSURE Only for PRU-353
The total time during which the gauge pressure was within 0.2 bar of the
maximum. The limit for this result changes to 4 psi or 0.2 kg/cm
2
when pressure
is displayed in alternative units.
8.11 REASON FOR STOPPING
You can stop recording by activating the switch or by unplugging either probe.
Recording will also stop after the maximum time (4 hours) or if the charge in the
battery becomes too low.