5. Select Input Range, then use the ↑ and ↓ arrows to adjust the value to match the settings on
the pressure cell PCB. Press Mute. (Default value: 0 – 50).
6. Select Output Range, then use the ↑ and ↓ arrows to adjust the value to match the fume
cupboard volume range. Press Mute. (Default value: 0 – 1000). For example, changing to 500
l/sec gives 0 – 10V over 0 – 500 l/sec (10 V = 500 l/sec).
7. Select Input Filter, then use the ↑ and ↓ arrows to adjust the value so that the volumetric
output is stable. Press Mute. (Default value: 1 second).
Note: The filter gives a rolling average over time to compensate for turbulent duct readings.
8. Select K Factor, then use the ↑ and ↓ arrows to adjust the value so that the correct constant
correction value is displayed. (Default value: 45.80 for TEL device).
9. Select F Factor, then use the ↑ and ↓ arrows to adjust the value so that the correct leakage
correction value is displayed. (Default value: 100%).
Note: The volume is measured in the duct and may not represent the face velocity
calculated volume due to leakage, using the F factor compensation the controller will
display relative fume cupboard volume, for example, set to 110% for 10% leakage.
10. Select Air Density, then use the ↑ and ↓ arrows to adjust the value so that the correct value
is displayed. (Default value: 1.2 kg/m
3
). Select Done and Run. For example, change to 1.0
kg/m
3
if a 3
rd
party restrictor is used that doesn’t consider air density.
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