MCS Catalog Specification Sheet

© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics MCS
■ Overview
■ Application
Milltronics MCS provides continuous, in-line weighing at minimal
cost. The stainless steel load cells ensure long-term, consistent,
reliable measurement. The modular construction and easy assembly of the MCS ensures quick delivery to meet even the tightest of schedules.
Operating with Milltronics BW500, or SIWAREX FTC microprocessor-based integrators, the MCS provides indication of flow
rate, total weight, belt load, and belt speed of bulk solids materials on a belt conveyor.
To complete the weighing system, include a speed sensor to
monitor conveyor belt speed for input to the integrator. On mobile crushing equipment, the TASS speed sensor is a compact,
rugged speed sensor designed for use with the MCS.
Milltronics MCS is a compact, rugged, modular, heavy-duty belt
scale for use in mobile crushers and aggregate screening
plants.
Idler not included with belt scale.
■ Benefits
•
•
•
•
•
Rugged design
Low profile
Easy retrofit
Low cost
Stainless steel load cells
4
Siemens WT 10 · Update 04/2015
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© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics MCS
■ Technical specifications 1) 2) 3)
Milltronics MCS
Milltronics MCS
Mode of operation
Measuring principle
Typical application
Strain gauge load cells measuring
load on belt conveyor idlers
Mobile crusher systems
Weight
Up to 20 kg (44 lb), 10 kg (22 lb)
per side
Interconnection wiring
(to integrator)
• < 150 m (500 ft) 18 AWG
(0.75 mm²) 6 conductor shielded
cable
• > 150 m (500 ft) to 300 m
(1 000 ft) 18 … 22 AWG
(0.75 … 0.34 mm²), 8 conductor
shielded cable
Approvals
• CSA/FM Class II, Div. 1,
Groups E,F,G and Class III
• ATEX II 2D,
Ex tD A21 IP65 T90 ºC
• GOST-R Ex
• IEC Ex, Ex tD A21 IP65 T90 ºC
• CE, RCM, GOST-R, RTN
Measurement accuracy
Accuracy1)
• ± 0.5 … 1 % of totalization over
25 … 100 % operating range, application dependent
• ± 2 % of totalization over
25 … 100 % operating range on
mobile crusher applications
Repeatability
± 0.1 %
Belt design
Belt width
• Up to 1 600 mm (60 inch CEMA)
width
• Refer to the dimensional drawing
Belt speed
Up to 4 m/s (800 fpm)2)
Capacity
Up to 2 400 t/h (2 640 STPH) at
maximum belt speed
Conveyor incline
• ± 20° from horizontal,
fixed incline
• Up to ± 30° with reduced
accuracy3)
4
Idlers
Idler profile
• Flat to 35°
• To 45° with reduced accuracy3)
Idler diameter
100 … 150 mm (4 … 6 inch)
Idler spacing
0.6 … 1.2 m (2.0 … 4.0 ft)
Load cell
Construction
17-4 PH (1.4568) stainless steel
construction with 304 (1.4301)
stainless steel cover
Degree of protection
IP67, IP65 on hazardous approved
models
Cable length
3 m (10 ft)
Excitation
10 V DC nominal, 15 V maximum
Output
2 mV/V excitation at rated load cell
capacity
Non-linearity and hysteresis
0.02 % of rated output
Non-repeatability
0.01 % of rated output
Capacity
25, 50, 100, 250, 500 lb stainless
steel
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
1)
2)
3)
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 WT 10 · Update 04/2015
© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics MCS
■ Selection and ordering data
Article No.
Milltronics MCS belt scale
A compact, rugged, modular, heavy-duty belt scale
for use in mining and aggregate screening plants
7MH7125-
Further designs
7777 0
Please add "-Z" to article no. and specify order
code(s).
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Stainless steel tag [69 x 38 mm (2.7 x 1.5 inch)],
Measuring-point number / identification
(max 27 characters), specify in plain text
Scale construction
Standard duty, CE, RCM
Manufacturer's test certificate:
According to EN 10204-2.2
Load cell capacity
50 lb (22.7 kg) (use not recommended
for mobile crushers)
¢
AA
100 lb (45.5 kg) (use not recommended
for mobile crushers)
¢
AB
250 lb (113.6 kg)
¢
500 lb (226.8 kg)
25 lb (11.3 kg) (use not recommended
for mobile crushers)
¢ C11
Operating instructions
Article No.
MCS belt scale, multi-language
A5E33071768
Belt Scale Application Guidelines
• English
7ML1998-5GA01
• French
7ML1998-5GA11
AC
• German
7ML1998-5GA31
¢
AD
• Spanish
7ML1998-5GA21
¢
AE
Hazardous location certificates
7ML1998-5KH81
BB
Note: The operating instructions should be ordered
as a separate item on the order.
¢
Fabrication
¢
1
Polyester painted mild steel, for use with flat bar or ¢
MWL calibration
2
Polyester painted mild steel
¢ Y15
Application Eng. reference number (max. 15 charac-¢ Y31
ters), specify in plain text.
¢ 1
Hazardous Duty
¢ 2
CSA/FM Class II, Div. 1, Groups E,F,G and Class III,
ATEX II 2D, IECEx, CE, RCM
Not specified1)
Order Code
This device is shipped with the Siemens Milltronics
manual DVD containing the complete operating
instructions library.
4
Spare parts
Stainless steel load cell
[17-4 PH (1.4568) stainless steel construction with
304 (1.4301) stainless steel cover]
25 lb (11.3 kg)
7MH7725-1DR
50 lb (22.7 kg)
7MH7725-1DH
100 lb (45.4 kg)
7MH7725-1DJ
250 lb (113.4 kg)
7MH7725-1DK
500 lb (226.8 kg)
7MH7725-1DS
25 lb (11.3 kg), CSA/FM/ATEX/IECEx
7MH7725-1DQ
50 lb (22.7 kg), CSA/FM/ATEX/IECEx
7MH7725-1DL
100 lb (45.4 kg), CSA/FM/ATEX/IECEx
7MH7725-1DM
250 lb (113.4 kg), CSA/FM/ATEX/IECEx
7MH7725-1DN
500 lb (226.8 kg), CSA/FM/ATEX/IECEx
7MH7725-1DP
Conduit replacement kit
7MH7723-1NA
Calibration weights
Flat bar/MWL retrofit kit
7MH7723-1HA
Calibration test arm assembly, c/w one 8.2 kg
(18 lb) calibration weight
7MH7723-1FR
Calibration test arm assembly, c/w two 8.2 kg
(18 lb) calibration weights
7MH7723-1FS
MCS calibration arm c/w idler clip
(holds up to two 8.2 kg (18 lb) weights
7MH7726-1AD
Calibration weight, 18 lb (8.2 kg)
7MH7724-1AA
Calibration weight, 6 lb (2.7 kg)
7MH7724-1AB
Milltronics flat bar calibration weights,
see page 4/59.
Note: Calibration accessories should be ordered as
a separate item on the order.
¢ We can offer shorter delivery times for configurations designated with the
Quick Ship Symbol ¢
1)
Only for quotation purposes, not a valid ordering option.
Siemens WT 10 · Update 04/2015
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© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics MCS
■ Dimensional drawings
Plan View
Front View
Standard base CEMA idler or
equivalent (customer supplied)
75
(2.95)
16
(0.63)
101
(3.98)
Customer
supplied
stringer
Shipping brackets
to suit
up to 1 600 (60) belt width
Belt direction
Apply optional
flat bar weight
Side View
150
(5.91)
146.05
(5.75)
Optional flat bar
weigh arm1)
4
160
(6.30)
Idler clamp
Mounting flange
1)
A
A
75
(2.95)
150 (5.91)
View A-A
MCS, dimensions in mm (inch)
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Siemens WT 10 · Update 04/2015
124
300 (4.9)
(11.81)
View A-A
Not recommended for inclined conveyor
applications
Note:
A minimum of 2 approach and 2 retreat idlers
should be aligned with the weigh idler to within
0.75 (+1/32) to 0 (0).
© Siemens AG 2015
Belt Scales
Milltronics belt scales
Milltronics MCS
■ Schematics
Belt travel
Note:
Conduit and connector not provided on
hazardous approved option
Conduit and box
connector
Load cell A
Load cell B
Detail
A
See detail A
Load cell B
Red
Black
White
Green
Shield
Shield
Red
Black
White
Green
Load cell A
4
Shield
+ SIG B
- SIG B
+ SIG A
- SIG A
- EXC
+ EXC
Stringer mounted junction box
(by customer)
MCS connections
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