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 ?m, 40 ... 240 ?in)

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 (? 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.

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