WD600 Catalog Specifications Sheet

© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics WD600
■ Overview
■ Technical specifications 1) 2) 3)
Milltronics WD600
Milltronics WD600 is a light- to-medium-duty slider bed belt
scale used for process and load-out control in manufacturing,
including the food, pharmaceutical and tobacco industries.
■ Benefits
Accuracy1)
± 0.5 … 1 % totalization over
25 … 100 % operating range,
application dependent
Repeatability
± 0.1 %
Belt width
12, 18, 24, 30, 36, 42, 48 inch
(300, 450, 600, 750, 900, 1 000,
1 200 mm)
Belt speed
2.0 m/s (400 fpm) maximum2)
Capacity
Up to 100 t/h
Conveyor incline
• ± 20° from horizontal,
fixed incline
• Up to ± 30° with reduced
accuracy3)
Conveyor idler/slider profile
• Horizontal
Loading
• Minimum 1.0 kg/m (0.6 lb/ft)
• Maximum 76 kg/m (51 lb/ft)
• Simple installation
• Long weigh span for more retention time on load cells
■ Application
WD600 works with an existing flat belt conveyor and the selected Siemens integrator. As material is moving along the conveyor belt and travels over the belt scale, it exerts a force proportional to the material load through the suspended
weighbridge to the load cells.
WD600 reacts only to the vertical component of the applied
force. The resulting movement in each load cell is sensed by its
strain gauges. When the strain gauges are excited by voltage
from the electronic integrator, they produce an electrical signal
proportional to weight, which is then applied to the integrator.
The vertical movement of the load cells is limited by the positive
overload stop incorporated into the design of the load cell
mount.
Load cell
Construction
17-4 PH (1.4568) stainless steel or
nickel plated alloy steel
Degree of protection
• Stainless steel: IP68
• Nickel plated alloy steel: IP66
Cable length
3 m (10 ft)
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
1)
2)
3)
Overload
150 % of rated capacity
Temperature
• -40 … +65 °C (-40 … +150 °F)
operating range
• -10 … +40 °C (15 … 105 °F)
compensated
Scale construction
• Stainless steel construction,
bead blast finish (1 ... 6 µm,
40 ... 240 µin)
• Acetal sliders
Hazardous locations
Consult the factory
Approvals
CE, meets FDA/USDA requirements for food processing, RCM,
GOST-R
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.
Contact Siemens application engineering ([email protected]) for consideration of higher belt speeds.
Review by Siemens application engineer required.
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© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics WD600
■ Selection and ordering data
Milltronics WD600
A low- to medium- capacity scale for light to
medium belt loading.
304 stainless steel construction with Delrin sliders.
Load cells are available in nickel plated, or stainless steel. Two calibration weights are required
and are ordered as separate line item. Refer to
Calibration weights.
Article No.
7MH7185-
Further designs
7 7 A0
Please add "-Z" to article no. and specify order
code(s).
Stainless steel tag [69 x 38 mm (2.7 x 1.5 inch)],
Measuring-point number / identification
(max 27 characters), specify in plain text.
Y15
Application Eng. reference number (max. 15 characters), specify in plain text.
Y31
Manufacturer's test certificate:
According to EN 10204-2.2
C11
1
Operating instructions
Article No.
2
• English
7ML1998-5KM03
3
• German
A5E32015601
4
• French
A5E32862113
36 inch (900 mm)
5
• Spanish
A5E32862157
42 inch (1 000 mm)
6
Belt Scale Application Guidelines
48 inch (1 200 mm)
7
• English
7ML1998-5GA01
Load cell capacity
• French
7ML1998-5GA11
Nickel plated
• German
7ML1998-5GA31
10 kg (22 lb)
D
• Spanish
7ML1998-5GA21
E
Note: The operating instructions should be
ordered as a separate line on the order.
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Belt width
12 inch (300 mm)
18 inch (450 mm)
24 inch (600 mm)
30 inch (750 mm)
4
Order Code
15 kg (33.1 lb)
20 kg (44 lb)
F
30 kg (66.2 lb)
G
50 kg (110 lb)
L
This device is shipped with the Siemens Milltronics manual DVD containing the complete operating instructions library.
Spare parts
Stainless steel
6 kg (13.2 lb)
H
12 kg (26.4 lb)
J
30 kg (66.2 lb)
K
Load cells
Stainless steel
6 kg (13.2 lb)
7MH7725-1EG
12 kg (26.4 lb)
7MH7725-1EH
30 kg (66.2 lb)
7MH7725-1EJ
Nickel plated
10 kg (22 lb)
7MH7725-1EK
15 kg (33.1 lb)
7MH7725-1EL
20 kg (44 lb)
7MH7725-1EM
30 kg (66.2 lb)
7MH7725-1EN
50 kg (110 lb)
7MH7725-1EP
Slider bar middle UHMW PE (for old style WD600)
7MH7723-1KF
Slider bar side UHMW PE (for old style WD600)
7MH7723-1KE
Slider bar acetal
7MH7723-1KG
Test chain 1.62 lb/ft (2.41 kg/m), 60 inch
7MH7723-1NF
Calibration Hanger Weights
200 g (0.4 lb)
7MH7724-1AF
500 g (1.1 lb)
7MH7724-1AG
1 000 g (2.2 lb)
7MH7724-1AH
2 000 g (4.4 lb)
7MH7724-1AJ
3 500 g (7.7 lb)
7MH7724-1BQ
5 000 g (11 lb)
7MH7724-1AK
7 500 g (16.5 lb)
7MH7724-1BR
8 500 g (18.7 lb)
7MH7724-1BS
10 000 g (22 lb)
7MH7724-1BT
12 000 g (26.5 lb)
7MH7724-1BU
15 000 g (33.1 lb)
7MH7724-1BV
Note: Calibration accessories should be ordered
as a separate item on the order
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Siemens WT 10 · Update 04/2015
© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics WD600
■ Dimensional drawings
B
Belt width
A
B (min.)
B (max.)
12 (300)
14.25 (362)
15 (381)
16.5 (419)
18 (450)
20.25 (514)
21 (533)
22.5 (572)
24 (600)
26.25 (667)
27 (686)
28.5 (724)
30 (750)
32.25 (819)
33 (838)
34.5 (876)
36 (900)
38.25 (972)
39 (991)
40.5 (1 029)
42 (1 000)
44.25 (1 124)
45 (1 143)
46.5 (1 181)
48 (1 200)
50.25 (1 276)
51 (1 295)
52.5 (1 334)
WD600, dimensions
A
4
■ Schematics
Load cell 'B'
Load cell 'A'
Belt travel
Green 'B'
+ SIG 'B'
Shield 'B'
White 'B'
- SIG 'B'
Shield 'A'
Green 'A'
+ SIG 'A'
Customer junction box
Shield
White 'A'
- EXC
+ EXC
- SIG 'A'
Load cell
'B'
Red 'A'
Red 'B'
Black 'A'
Black 'B'
Load cell
'A'
To integrator
WD600 connections
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