Measuring principle | Strain gauge load cells and digital speed sensor |
Typical application | Industrial and process applications in feeding, blending or rationing in cement manufacturing |
Measuring accuracy | |
Accuracy1) | ± 2 % or better |
Repeatability | ± 0.1 % |
Specified range | 33 ... 100 % based on speed |
Design rate range | 10 ... 2 000 t/h (11 ... 2200 STPH) |
Max volumetric flow | 1 500 m3/h (53 000 ft3/h) |
Medium conditions | |
Material temperature | -40 ... +150 °C (-40 ... 300 °F) |
Operating temperature | -40 … +65 °C (-40 … +150 °F) |
Material | Mild steel with abrasion resistant contact parts optional |
Load cells | |
Construction | 17-4 PH (1.4568) stainless steel or nickel plated alloy steel |
Degree of protection | IP67 |
Excitation | 10 V DC nominal,
15 V DC maximum |
Output | 2 mV/V |
Non-linearity | ± 0.02 % of rated output |
Non-repeatability | ± 0.01 % of rated output |
Capacity | 50, 100, 250, 500, 750, 1 000 lb |
Overload | 150 % of rated capacity |
Temperature | - Operating range: -40 … +65 °C (-40 … +150 °F)
- Compensated: -10 … +40 °C (15 … 104 °F)
|
Speed sensor | |
WS300 Output | See page 4/45 |
Framework | Painted structural steel |
Sprockets | Heavy duty chain sprockets for positive apron conveying |
Pan support | Heavy-duty steel rollers |
Pan speed | 0.01 ... 0.25 m/s (2 ... 50 fpm) |
Bearings | Heavy duty pillow block style on head sprockets Heavy duty take up style on tail sprockets |
Chain | Per ISO1977:2000 and conforming to regulations of GB/T8350-2003 |
Chain tension | - Screw type, with take up bearings
- Spring tensioned
|
Drive motor | AC, TEFC, 4:1 CT inverter duty, drive motor with direct coupled flange mounted hollow bore KA gear reducer, 1.2 service factor min. |
Shipping weight | 900 kg (2 000 lb) minimum |
Approvals | - CE on all electrical components
- Hazardous approvals available on electrical components
Note: Weighfeeder as a whole is not approved for hazardous locations, only electrical components. |
