Siemens SITRANS WW310, Operating Instructions Manual

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SITRANS WW310
Operating Instructions, 03/2014, A5E33490433-AA
9
Technical data
3
3.1 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%
Belt speed
0.005 ... 0.36 m/s
(1 ... 70 fpm)
Operating
temperature
-10 to +40 °C
(+14 to +104 °F)
Materials Mild steel with stainless steel, abrasive resistant contact parts optional
Load cells Two corrosion resistant single point, platform type with mechanical overload
protection, Nickle plated IP66 rated, Stainless steel IP67 rated.
Non-linearity:
± 0.03%
Non-repeatability: ± 0.02%
Speed sensor Industrial duty, digital optical encoder, tail shaft mounted
Framework Cantilevered painted mild steel structural frame for quick and easy belt
replacement
Pulleys 200 mm (8") OR 300 mm (12") crowned with 6 mm (¼") min rubber lagging on
drive pulley for maximum traction, 200 mm (8") OR 300 mm (12") crowned tail.
Idlers Heavy-duty 100 mm (4") CEMA C with precision ground ball bearings and triple
labyrinth seals for longer life, CEMA D or E optional
Belting Heavy duty endless type for maximum weighing accuracy, SBR, Butyl and Nitrile
material types, B-section, flanges or corrugated side wall options
Belt tension Screw type, telescoper module with 150 mm (6") travel on 8" pulley style, or
229mm (9") travel on 12" pulley style
Belt cleaning Spring tensioned UHMW blade at head pulley
UHMW return plow at tail pulley
Drive Totally enclosed three phase AC inverter duty rated motor with hollow bore shaft
mounted gear reducer
Shipping Weight 410 kg (900 lbs) minimum
Approvals
For use in hazardous rated areas, consult with factory. Note that only electrical
components are rated and entire weighfeeder is not.