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Digital Dosing Units
59
Frequency [Hz] = Input current [mA] x 10000 [Hz]
20 [mA]
Note the data:
Min. input frequency = __________ Hz
Max. input frequency = __________ Hz
Calculate the span factor using the formula:
Span factor [Hz / rpm] = Frequency [Hz]____________
Rotational speed of the extruder [rpm]x 10
Note the data:
Span factor = __________
Determining the Configuration Value
Extrusion (Constant or Proportional):
Mark the functions required. Use the numerical value indicated and insert it in the empty field
if applicable. Total the figures for configuration value.
Optional raw material level probe installed . . ................ . . . . . . . . . . . . . . . . . ..1 ___
Optional additive level probe installed . . . . . . . . . . . . . ................ . . . . . . . . . ..2 ___
Optional blending unit installed . . . . . . . . . . . . . . . . . . . . . . . . . . ............... . .. 8 ___
Totalizer displayed in lb (kg default) . . . . . . . . . . . . . . . . . . . . . . . . ................ 16 ___
Extruder throughput (1 kg-6.5 Kg/min) . . . . . .(2.2 lbs/min-14.3 lbs/min) ……..0 ___
Extruder throughput (10 kg-65 kg/min)……….(22 lbs/min-143 lbs/min). . . . . 32 ___
Extruder throughput (0.1 kg-0.65 Kg/min) . . .(0.22 lbs/min-1.43 lbs/min)…....128 ___
(NOTE: the throughput selections determine placement of the decimal point on the display)
External run/stop signal controls dosing . . . . . . . . . . . . . . . . . . . . .............. . 64 ___
Mounting on Micro mixing hopper . . . . . . . . . . . . . . . . . . . . . . . . . ............... . 256 . ___
Alarm output is switched in case of power failure . . . . . . . . . . .............. 512 ___
Extrusion proportional . . . (extruder follower). . . . . . . . . . . . . . . . ............ . 1024 _____
Extrusion Constant ………………….……………………………………........…3072______
Printer available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........16348 ____
Configuration value: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . …............ _____
Example:
• Level probes: raw material and additive probes installed