Appendix G- Temperature; Temperature Displayed And Actual Material Temperature - Graco HFRL Setup And Operation Manual

Appendix G- Temperature

Appendix G- Temperature
Temperature Displayed and
Actual Material Temperature
For HFR systems which have heat zones installed
(Inline, tank or Hose heaters), to prevent excessive
material temperatures when the material flow is 0 (not
moving), the zone temperature sensors are installed
near or touching the heating elements of the respective
zone. Because of this, the temperature reading dis-
played on the HFR ADM module may be affected by the
heating element of the zone, especially if the machine is
idle or stalled to pressure. For these situations, the tem-
perature displayed (on the ADM run Status Screen),
may be higher than the actual material temperature. If
the ADM displayed material temperature accuracy is
critical for the respective manufacturing process, it is
recommended that a manual or semi-automatic circula-
tion system be added to a stall to pressure type HFR
(P2/Fusion, MD2, EP, Auto-Fusion, ... dispense valve
options).
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