Товаров
  
корзина пуста
  • Каталог оборудования Siemens
Техника автоматизации
›
Контрольно-измерительные приборы
›
Технологии взвешивания
›
SITRANS Weighfeeders
›
SITRANS WW200

SITRANS WW200

  • Заказные данные
    (82)
  • Аксессуары
    (82)
  • Информационные материалы

    Информационные материалы

    SITRANS WW200 is a low- to medium-capacity weighfeeder used for minor ingredient additives.

    Область применения

    SITRANS WW200 has been field tested and proven in hundreds of applications.

    The unit can be customized to meet exact application needs. Stainless or mild steel units are available in open or enclosed styles. Custom lengths, belt types, inlet configurations, drives, and other options are available to meet your requirements.

    The MS (mild steel) model is ideal for use with chemicals, powders, or any granular product in applications not requiring wash-down. The SD (sanitary duty) model is designed for the food industry where high pressure wash-down is required. It meets all USDA and FDA requirements.

    Its cantilevered mechanical design provides for quick belt removal and easy maintenance. It is designed to eliminate material build-up, ensuring high accuracy and reliability. The unique weigh system reduces dead load and applies live load directly to two platform load cells. Load cells are externally mounted for easy access and maintenance.

    Standard components include an anti-static food grade belt option, horizontal slider bars for self-cleaning and minimal product build up, belt tracking rollers, belt scraper, and plow for self-cleaning. 

    Чертеж

    SITRANS WW200, dimensions in mm (inch)

     

    Особенности

     

    • High accuracy
    • Ideal for low- to medium-capacity loads
    • Fast installation, easy to clean and maintain
    • Flexible, rugged design allows configurations to suit many applications
    • Quick delivery on standard units 
    • Outboard mounted load cells with protective cover

    Схема подключения

    SITRANS WW200 connections

    Технические данные

     

    Mode of operation

     

    Measuring principle

    Strain gauge load cells and digital speed sensor

    Typical application

    Control and monitor feed rates and blending of minerals or powdered additives into a process

    Measuring accuracy

     

    Accuracy1)

    ± 0.5 % or better

    Repeatability

    ± 0.1 %

    Specified range

    10 … 100 % based on speed

    Design rate range

    0.45 … 100 t/h
    (1 000 lb/h … 110 STPH)

    Max volumetric flow

    220 m3/h (7 700 ft3/h)

    Medium conditions

     

    Operating temperature

    -10 … +55 °C ( 14 … 131 °F)

    Material

    Mild steel or 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 or nickel plated alloy steel

    Degree of protection

    • Stainless steel: IP68
    • Nickel plated alloy steel: IP66

    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

    • Stainless steel range: 6, 12, 30 kg
    • Nickel-plated range: 10, 15, 20, 30, 50 kg

    Overload

    150 % of rated capacity

    Temperature

    • Operating range: -40 … +65 °C (-40 … +150 °F)
    • Compensated: -10 … +40 °C (15 … 105 °F)

    Speed sensor

    		 

    Optical encoder output

    RS 422 (TTL) 5 V DC, 150 mA
    max. 500, 1 000, or 2 000 ppr

    Temperature

    -10 … +70 °C (14 … 158 °F)

    Degree of protection

    • Standard: IP64
    • Stainless steel: IP66

    C-flange mounted magnetic pulse generator output

    Open collector, NPN, sinking output, max. 17 mA, 60 ppr

    Temperature

    -40 … +105 °C (-40 … +220 °F)

    Degree of protection

    IP67

    Belt tracking switch

    		 

    Aluminum spring rod (un-wired)

    • 1 NO, 1 NC switch blocks
    • Rated operating voltage 600 V AC max.

    Temperature

    -30 ... +85 °C (-22 ... +185 °F)

    Degree of protection

    IP67

    Framework

    • Precision machined, stainless [304 (1.4301) or 316 (1.4401)] or mild steel
    • Cantilevered design for easy belt replacement

    Pulleys

    152 mm (6 inch) diameter with 6 mm (¼ inch) neoprene lagging

    Belt speed

    0.005 … 0.36 m/s (1 … 70 fpm)

    Belt support

    Edge of flat bar eliminates material buildup

    Bearings

    • 2-bolt flange mount on drive pulley
    • 2-bolt threaded base pillow block on driven pulley

    Belting

    • Static control with vulcanized endless finger splice for maximum weighing consistency (standard)
    • Maximum rated material temperature 82 °C (180 °F)
    • Silicone HT belt rated for max. material temp. of 177 °C (350 °F)
    • Nitrile belt rated for a max. material temp. of 121 °C (250 °F)

    Belt tension

    Screw type, telescoper module with 150 mm (6 inch) travel - mild or stainless steel 304 (1.4301)

    Belt cleaning

    • UHMW blade type with spring tensioning at head pulley
    • Return plow
    • Cleaning brush, optional

    Drive motor

    AC, TEFC, 10:1 CT inverter duty, drive motor with direct coupled flange mounted hollow bore CAF48 gear reducer, 1.2 service factor min.  

    Shipping weight

    280 kg (600 lb) minimum

    Approvals

    • Stainless steel options meet USDA and FDA requirements for food processing
    • CE on all electrical components Hazardous approvals per configuration options

    Note: weighfeeder as a whole is not approved for hazardous locations only electrical components.



    1) Accuracy subject to: On factory approved installations the weigh feeder 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.

    Reduction

    (X:1)

    Speed

    60 Hz

    fpm

    50 Hz

    fpm

    60 Hz

    m/s

    50 Hz

    m/s

    1059:1

    max.
    min.

    2.89
    0.29

    2.41
    0.24

    0.015
    0.002

    0.012
    0.001

    937:1

    max.
    min.

    3.27
    0.33

    2.72
    0.27

    0.017
    0.002

    0.014
    0.001

    865:1

    max.
    min.

    3.54
    0.35

    2.95
    0.30

    0.018
    0.002

    0.015
    0.002

    745:1

    max.
    min.

    4.11
    0.41

    3.43
    0.34

    0.021
    0.002

    0.017
    0.002

    677:1

    max.
    min.

    4.52
    0.45

    3.77
    0.38

    0.023
    0.002

    0.019
    0.002

    615:1

    max.
    min.

    4.98
    0.50

    4.15
    0.42

    0.025
    0.003

    0.021
    0.002

    558:1

    max.
    min.

    5.49
    0.55

    4.57
    0.46

    0.028
    0.003

    0.023
    0.002

    508:1

    max.
    min.

    6.03
    0.60

    5.02
    0.50

    0.031
    0.003

    0.026
    0.003

    449:1

    max.
    min.

    6.82
    0.68

    5.68
    0.57

    0.035
    0.004

    0.029
    0.003

    414:1

    max.
    min.

    7.40
    0.74

    6.17
    0.62

    0.038
    0.004

    0.031
    0.003

    357:1

    max.
    min.

    8.58
    0.86

    7.15
    0.72

    0.044
    0.004

    0.036
    0.004

    324:1

    max.
    min.

    9.45
    0.95

    7.88
    0.79

    0.048
    0.005

    0.040
    0.004

    320.67:1

    max.
    min.

    9.55
    0.96

    7.96
    0.80

    0.049
    0.005

    0.040
    0.004

    284.7:1

    max.
    min.

    10.76
    1.08

    8.97
    0.90

    0.055
    0.006

    0.046
    0.005

    249.6:1

    max.
    min.

    12.27
    1.23

    10.23
    1.02

    0.062
    0.006

    0.052
    0.005

    223.36:1

    max.
    min.

    13.71
    1.37

    11.43
    1.14

    0.070
    0.007

    0.058
    0.006

    198.25:1

    max.
    min.

    15.45
    1.55

    12.88
    1.29

    0.079
    0.008

    0.065
    0.007

    173.73:1

    max.
    min.

    17.63
    1.76

    14.69
    1.47

    0.090
    0.009

    0.075
    0.008

    152.75:1

    max.
    min.

    20.05
    2.01

    16.71
    1.67

    0.102
    0.010

    0.085
    0.009

    138:1

    max.
    min.

    22.20
    2.22

    18.50
    1.85

    0.113
    0.011

    0.094
    0.009

    120.25:1

    max.
    min.

    25.47
    2.55

    21.23
    2.12

    0.130
    0.013

    0.108
    0.011

    108:1

    max.
    min.

    28.36
    2.84

    23.63
    2.36

    0.144
    0.014

    0.120
    0.012

    97.5:1

    max.
    min.

    31.42
    3.14

    26.18
    2.62

    0.160
    0.016

    0.133
    0.013

    88.4:1

    max.
    min.

    34.65
    3.47

    28.87
    2.89

    0.176
    0.018

    0.147
    0.015

    80.44:1

    max.
    min.

    38.08
    3.81

    31.73
    3.17

    0.193
    0.019

    0.161
    0.016

    71.12:1

    max.
    min.

    43.07
    4.31

    35.89
    3.59

    0.219
    0.022

    0.182
    0.018

    65.68:1

    max.
    min.

    46.64
    4.66

    38.86
    3.89

    0.237
    0.024

    0.197
    0.020

    56.55:1

    max.
    min.

    54.17
    5.42

    45.14
    4.51

    0.275
    0.028

    0.229
    0.023

    51.41:1

    max.
    min.

    59.58
    5.96

    49.65
    4.97

    0.303
    0.030

    0.252
    0.025

    46.93:1

    max.
    min.

    65.27
    6.53

    54.39
    5.44

    0.332
    0.033

    0.276
    0.028

    42:1

    max.
    min.

    72.93
    7.29

    60.77
    6.08

    0.371
    0.037

    0.309
    0.031

    37.28:1

    max.
    min.

    82.16
    8.22

    68.47
    6.85

    0.417
    0.042

    0.348
    0.035



     

    Полезное

    ENG_488654.PDF