SITRANS WB310 Siemens

Область применения



SITRANS WB310 belt scale provides continuous in-line weighing on a variety of products in recycling industries. It is proven in a wide range of tough applications from sorting (in-coming processes) to production monitoring.

SITRANS WB310 uses parallelogram-style load cells that result in fast reaction to vertical forces, ensuring instant response to product loading. This enables it to provide optimum accuracy and repeatability even with uneven loading.

Operating with Milltronics BW500, SIWAREX WP241, or FTC microprocessor-based integrators, WB310 provides indication of flow rate, totalized weight, belt load, and belt speed of bulk solid materials. A speed sensor monitors conveyor belt speed for input to the integrator.

SITRANS WB310 is installed in a simple drop-in operation and has a complete full length frame to ensure support during operation. With minimal rotating parts, maintenance is kept simple and easy, with just periodic calibration checks and greasing of bearings required.

Обзор



SITRANS WB310 is a heavy-duty, full-frame two load cell, pivoted pan based, belt scale used for process monitoring.

Чертеж



SITRANS WB310, dimensions in mm (inch)

Особенности


  • Outstanding reliability and repeatability
  • Unique parallelogram style load cell design
  • Fast reaction to product loading; capable of monitoring low to high material loads
  • Rugged construction
  • Heavy duty slider pan with counter weight-pivoted design to minimized dead loads
  • Suitable for uneven or light product loading

Схема подключения



SITRANS WB310 connections

Технические данные



Mode of operation

 

Measuring principle

Strain gauge load cells measuring load on belt conveyor pan

Typical application

Control in recycling

Measurement accuracy

 

Accuracy1)

± 5 % or better of totalization over 25 … 100 % operating range

Repeatability

± 0.1 %

Medium conditions

 

Material temperature

-40 … +75 °C (-40 … +167 °F)

Belt design

 

Belt width

  • 54 … 72 inch
  • Equivalent to 1 300 … 1 800 mm in metric size

Belt speed

Up to 1 m/s (200 fpm)2)

Capacity

Up to 5 000 t/h (5 500 STPH) at maximum belt speed. Please contact a Siemens representative for higher rates.

Conveyor incline

  • ± 20° from horizontal, fixed incline
  • Up to ± 30° with reduced accuracy3)

Load cell

 

Construction

17-4 PH (1.4568) stainless steel construction with 304 (1.4301) stainless steel cover.

Degree of protection

IP67

Cable length

3 m (10 ft)

 

Note: To calculate installation cable length subtract 3 048 mm (120 inch) from the "A" dimension

Excitation

10 V DC nominal,
15 V DC maximum

Output

2 ± 0.002 mV/V excitation (nominal) at rated load cell capacity

Non-linearity and hysteresis

0.02 % of rated output

Non-repeatability

0.01 % of rated output

Capacity

 
  • Maximum ranges

50, 100, 250, 500 lb

Overload

150 % of rated capacity, ultimate 300 % of rated capacity

Temperature

  • -50 … +75 °C (-58 … +167 °F) operating range
  • -40 … +65 °C (-40 … +150 °F) compensated

Weight

Contact factory

Interconnection wiring (to integrator)

  • < 150 m (500 ft) 18 AWG (0.75 mm²) 6 conductor shielded cable
  • > 150 m … 300 m (500 ft … 1 000 ft) 18 … 22 AWG (0.75 … 0.34 mm²), 8 conductor shielded cable

Approvals

CE, RCM



1) Accuracy subject to: On factory approved installations the belt scale 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.

2) Contact Siemens application engineering (factorysupport.smpi@siemens.com) for consideration of higher belt speeds.

3) Review by Siemens application engineer required.