Mode of operation | |
Measuring principle | Strain gauge load cell and digital speed sensor |
Typical application | Control and monitor feed rates and blending in bulk chemicals, tobacco, food, and water treatment |
Measuring accuracy | |
Accuracy1) | ± 0.25 … 0.5 % |
Repeatability | ± 0.1 % |
Specified range | 10 … 100 % based on speed |
Design rate range | 45 kg/h … 18 t/h (100 lb/h … 20 STPH) |
Max volumetric flow | 30 m3/h (1 060 ft3/h) |
Medium conditions | |
Operating temperature | -10 … +55 °C (10 … 131 °F) |
Material | Stainless steel
[304 (1.4301) or 316 (1.4401)], bead blast finish (1 ... 6 µm, 40 ... 240 µin) |
Load cells | |
Construction | 17-4 PH (1.4568) stainless steel |
Degree of protection | IP68 |
Excitation | 10 V DC nominal, 15 V DC maximum |
Output | 2 mV/V |
| ± 0.02 % of rated output |
| ± 0.01 % of rated output |
Capacity | Stainless steel range: 6, 12, 30 kg |
Overload | 150 % of rated capacity |
Temperature | - Operating range: -40 … +65 °C (-40 … +149 °F)
- Compensated: Compensated: -10 … +40 °C
(14 … 104 °F)
|
Speed sensors | |
Optical encoder output | - RS 422 (TTL) 5 V DC, 150 mA max.
- 1 000 or 2 500 pulses per revolution (ppr)
|
Degree of protection | - Standard: IP64
- Stainless steel: IP66
|
Temperature | -10 … +70 °C (14 … 158 °F) |
Framework | - Precision machined, stainless [304 (1.4301) or 316 (1.4401)] or mild steel
- Cantilevered design for easy belt replacement
|
Pulleys | 115 mm (4.5 inch) diameter, crowned and lagged |
Bearings | - 4-bolt flange mount on drive pulley
- 2-bolt threaded base pillow block on driven pulley
|
Belt speed | 0.005 … 0.36 m/s (1 … 70 fpm) |
Belt support | Slider bed frame |
Belting | - Polyester carcass with polyurethane top cover and static control with vulcanized endless finger splice for max. weighing consistency (standard); optionally available in blue and as low capacity belt; product temperature up to 100 °C (212 °C)
- Belt properties in compliance with food safety regulation (EU) 10/2011 and (EC) 1935/2004
- Meets FDA 21CFR and Halal
- HACCP concept supported: resistant to hot water and ideal for frequent cleaning cycles
- Silicone high temp belt for hot material applications (product temperature up to 177 °C (350 °F), in compliance with (EU) 10/2011 and (EC) 1935/2004, meets FDA 21CFR
|
Belt tension | - Counter-weighted stainless steel [304 (1.4301) or 316 (1.4401)] tensioning idler for consistent tension, required for high accuracy weighing
- Screw type, telescoper module with 25 mm (1 inch) travel, stainless steel 304 (1.4301)
|
Belt cleaning | - PE-HD blade type with counterweight at the head pulley for cleaning product side of belt
- Return plow
|
Servomotor | SINAMICS Servomotor; optionally including SINAMICS S120 drive, PROFIBUS DP or ProfiNet option, length of motor and communication cables customizable. |
Standard gearmotor | Helical-worm geared motor, AC, Efficiency class IE1, IEC or UL-R/CSA, IP55, incl. PTC, RAL7031, C2 coating acc. EN12944. |
Food grade gearmotor | Helical-worm geared motor, AC, Efficiency class IE3, IEC or UL-R/CSA, IP66, including PTC, corrosion resistant Aluminium housing, sealed surface treatment nsd tupH, complies with FDA. |
Variable frequency drive: SINAMICS S120 servo motor controller (included with supply of WW100 based on ordering options) | - 1 ph, 200 … 240 V or 3 ph, 380 … 480 V
- BOP for local control
- External 24 V DC power supply
- RS 232 connection port
- 4 DI, D0
- PROFIBUS DP, optionally ProfiNet
|
Shipping weight | 91 kg (200 lb) … 181 kg (400 lb) maximum |
Approvals | - Declaration of incorporation of partly completed machinery acc. directive 2006/42/EC.
- RCM
- EAC
- Meets FDA requirements for food processing
|
