Siemens 7MH7300 Series, Руководство по эксплуатации

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Technical data
10
10.1 Specifications
Accuracy ± 0.5%
Accuracy subject to: On factory approved installations, the weighfeeder system’s totalized weight will
be within the specified accuracy when compared to a known weighed material test sample. The test
rate must be within the specified range of the design capacity, and held constant for the duration of
the test. The minimum material test sample must be equivalent to a sample obtained at the test flow
rate for three revolutions of the belt, or at least ten minutes running time, whichever is greater.
Operating range 10 to 100%
Capacity 45 kg/h ... 100 t/h
(100 lbs/h ... 110 STPH)
Belt speed 0.005 ... 0.36 m/s
(1 ... 70 fpm)
Operating tempera‐
ture
-10 to +40 °C
(+14 to +104 °F)
Material temperature -40 to +125 °C
(-40 to +257 °F)
Construction materials Mild steel or stainless steel [304 (1.4301) or 316 (1.4401)]
Load cells
Two single point, nickel-plated platform IP66
17-4 PH (1.4568) stainless steel construction for corrosive and washdown environments IP68
Maximum tightening torque of the fixing screws:
- 10 Nm for stainless steel loadcells
- 30 Nm for nickel plated loadcells
Non-repeatability:
± 0.02%
Max. tightening torque of the load cell mounting bolts: see loadcell manual or datasheet
Speed sensor Optical encoder, driven pulley mounted
Framework Precision machined, stainless or mild steel
Cantilevered design for easy belt replacement
Pulleys 152 mm (6") diameter with 6 mm (¼”) neoprene lagging for maximum traction
Belting Polyester carcass with polyurethane top cover and static control with vulcanized endless finger splice
for max. weighing consistency (standard), product temperature up to 100 °C (212 °F).
Optionally available in blue colour and with different flanges.
Silicone high temperature belt for hot material applications (product temperature up to 177 °C (350
°F).
Belts in compliance with (EU) 10/2011 and (EC) 1935/2004, meets FDA 21CFR.
Belt support Vertical stainless steel flatbars eliminate material buildup
Belt tension Screw type, telescoper module with 150 mm (6") travel (mild or stainless steel)
Belt cleaning PE-HD blade type with spring tensioning at head pulley for cleaning product side of belt
PE-HD blade type return plow at tail pulley
Optional belt cleaning brush on product side of belt
SITRANS WW200
Operating Instructions, 06/2018, A5E33560654-AC
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