MM-7 Series of WIM System used to weigh trains.
The MM-7 WIM's load sensors are simply bolt onto the existing rails.
Dynamic Rail in Motion
Buy and Sell Goods By Weight
Approved to Indian Railway Trade use. Our MVR MM-7 Series of WIM System can be used
to weigh trains for Invoicing of goods by weight, checking and queries of customers
inbound goods to your depot. Don’t forget, they may not be weighing on Trade Approved
equipment, plus the calibration may not be to a high standard. With the MM- 7 Series
WIM, you can rest assured, your weighing results will be correct.
Easy Installation
The load sensors simply bolt onto the existing rails after drilling holes, or can
be fused on the rails. There is no cutting of rails, no civil works and no infrastructure
work involved whatsoever. The MM-7 WIM can be installed within a day and can even
be carried out whilst trains are still running depending on site conditions and
traffic.
High Speed or Static Weighing
Trains can be weighed accurately on the MM 7 WIM at high speeds, or the system can
be used as a static train weather when loading of goods, for accurate and balanced
loadings into each wagon.
No Speed Limits
There is no limit to train speeds over the system, as it can not be damaged due
to the contactless installation. The wheels never come into direct contact with
the MM 7 WIM.
Fully Automated Train Weighing
Weighing can be activated automatically by the train
passing or from the interfaced control system. Manual weighing is also available.
Higher Accuracy Measurements
The MM-7 WIM's load sensors are the most accurate available,
with an accuracy of more than 0.1%. R 106 Approval is to within 0.5% of the total
train.
Data Production and Output
Date, time, number of axles and wheel load on the left
and right side are registered for each train passage. Based on the measured values
and on information stored in the analysis computer, data such as train gross, axle
pressure and over load is calculated and presented. Data may also be presented in
graphical format. After the calculation, a bill of weight (gross) with train data
is created. The train weighing data is also stored in a log file on the computer.
Safety of Personnel, Infrastructure and rolling stock
Unbalanced wagons and payload Detection
The MM-7 Series WIM weighs each wheel individually, therefore unbalanced loads and wagons with axle or suspension problems,
will be highlighted immediately.
Wheel Flats Detection (Optional)
MM-7 WIM, unlike most systems, can have wheel flats detection built into the system. This will pick up wheel defects
before they get serious. Wheel flats can lead to cracking of the wheel and even train derailments if left unchecked.
After Sales Care and Service
We can provide Maintenance packages to suit your requirements ensuring the system
is running at peak performance at all times. We can provide assistance remotely,
or on-site if required. We offer 24/7 assistance to give you peace of mind, wherever
you are.
MM-7 Series RWIM Advantages
- Avoid overloading which can damage infrastructure and wagons, and un-even loading which can lead to derailments.
- Ensure any shortfalls of weight on incoming goods are instantly detected and recorded, and also ensure you are not sending more product than you have charged for.
- Determine the weight of wagons in order to collect revenue from shipping companies.
- Ensure any shortfalls or leakage of goods are detected immediately upon arrival at the depot.
- For adjustment and control in batching and volume control applications.
- For balancing purposes of the loco and wagons manufacturer and repair workshops, in order to achieve optimum wheel to track traction with equal weight distribution.
Technical Specifications (Slow Speed WIM)
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Details
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Description
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Capacity
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User Selectable
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Stationary Accuracy
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±0.05% FSR* (depends on field conditions, installation, structure and load cells
also)
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In-Motion Accuracy with respect to Speed
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±1-3% FSR up to speed of 20 km/hr (depends on field conditions, installation, structure
and loadcells also)
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Type of In motion scale
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Load cell based permanent In-motion scale.
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Operational Temperature
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0˚C to 50˚C
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Power supply
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AC single Phase 230V, 50 Hz
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Load Cells
MVR LC’S are double ended shear beam load cell ideally suited for Truck, track,
onboard weighing applications. Its construction of high alloy tool steel provides
optimum protection under impact loading & adverse conditions. The cell is environmentally
protected with waterproof seal and is Electro less nickel plated to assure resistance
against corrosion.
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Performance Specification
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Standard Capacity
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10,15,20,22.5,25 Tf
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Excitation Voltage
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10 VDC- Maximum 15 VDC
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Nominal Output
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2.0 m V/ V
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Non - Linearity
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< ±0.1% FSO (Full Scale Output)
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Hysteresis
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< ±0.15% FSO
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Non-Repeatability
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< ±0.1% FSO
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Creep (30 minutes)
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< ±0.02% FSO
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Zero Balance
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±1.0% FSO
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Input Resistance
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770 ± 15 Ohms
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Output Resistance
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700 ± 5 Ohms
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Insulation Resistance (50 VDC)
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> 1000 Mega Ohms
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Certification
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CE Certified
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Safe Overload of Rated Capacity
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150%
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Ultimate Overload of Rated Capacity
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300%
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Temp. Compensated Range
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0-500C
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Temperature Effect on Output
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< 0.01% FSO/ 0C
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Temperature Effect on Zero
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< 0.01% FSO/ 0C
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Deflection
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< 0.4 mm at FSO
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Finish & Construction
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Electroless Nickel Plated Tool Steel
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Surge Protector / Junction Box
MVR Technology has introduced a Lightning protection Junction box for Analog & Digital
load cell with better protection against lightning and high voltage Surge. Special
components to enhance protection against Lightning Strikes have been incorporated.
This will enhance performance, reduce down time and reduce field calls for WIM installations
using DESB Load cells..
IR LIGHT CURTAINS(FROS)
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Specifications
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Power Supply
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12 - 24 Volts DC
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Supply Protection
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Reverse Polarity Protected
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Output
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PNP or NPN / NO or NC
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Output Indications
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Through LEDs
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Channel Indication
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LED indication for each channel
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Response Time
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On to Off : 10 - 15 m.sec. Off to On : 50 - 100 m.sec
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No of Beams
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4, 6, 8, 10 , 16, 20, 16, 24, 32, 40, 48, 56, 64
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Beam bypass
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Provided in hand/body protection models
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Protected Heights
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90 - 2000 mm
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Pitch offered
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11, 20, 30,40, 50, 90mm
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Adjustable Range
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Up to 3 meters (Higher range up to 40 meters available)
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Standard Cable length
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5 meters for emitter, 3 meters for receiver
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Operating Temperature
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Up to 55 Degrees centigrade
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Cross Section
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36 x 42 mm
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Electrical Connections
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Plug in Connector for Emitter & Receiver
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Applicable to
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Directly work with PLCs / Controllers
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Protections
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Output short circuit protected
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Vibration Resistance
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Amplitude: 0.75 mm (p) Freq : 10 - 55 Hzs, Rate : 1 Octave / min
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Operating Light
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500 Lux (max.) when source is places opposite to receiver, > 3000 lux when source
placed at an angle of 20 degrees
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MVR WIM FEAUTRES
- Optimal pricing
- Quick and
trouble free installation
- High vehicle
throughput
- Maximize operational
Productivity and cost savings
- Automatic
vehicle counter and immediate indication of the vehicle overload
- Dust and waterproof
wirings for easy and reliable connection
- Gross weight,
axle weights, numbers of axles can be recorded along with average speed
- Data records
can be stored for future use or can be sent via LAN or Internet to the server