Sensors & Controls | Line Control Sensors | Linear Mass Sensors

Linear Mass Sensors

Unique and versatile sensors which provide smooth, precise, self-correcting speed control on canmaking lines

When used on the infeed to machines, the LMS controls machine speed to perfectly match the rate of cans being supplied to the machine. It will do this smoothly without overshoot across a wide speed range, eliminating the constant speed variations that are a design feature of traditional, slow-medium-high speed control systems.

  • Can density can be monitored at any point on the line
  • Machine speeds can be smoothly modulated and coordinated
  • Optimum line efficiency
  • Suitable for mass, single file and variable speed conveyors, gravity drops and metering units
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Linear Mass Sensors

SortProductPageProduct CodeDescriptionOperating VoltagePower Consumption
2LMSLMS2400-25-UCLinear Mass Sensor Kit: 25' (7.6m) range*11 - 24 VDC 3 Watts
3LMSLMS2400-40-UCLinear Mass Sensor Kit: 40' (12.2m) range*11 - 24 VDC 3 Watts

*The LMS Sensor Kit is supplied complete with: T400 amplifier output module, high quality, special coated stainless steel sensor wire and a mounting kit.


OPTIONS & ACCESSORIES

SortProductLinkProduct CodeItemDescription
0AMS, LMST400WR-UCReceiver/Output ModuleEnclosed Module

SPECIFICATIONS

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LMS
Operating Voltage:
11 - 24 VDC
Power Consumption:
3 Watts
Operating Temperature:
0°C to 50°C (32°F to 122°F)
0 to 90% relative humidity, non-condensing
Dimensions:
T400WR: 125mm x 75mm x 75mm (4.92" x 2.95" x 2.95")
Analog Output:
Default: 0 to 10 VDC
Selectable: 4 to 20 mA
Method of Detection:
Capacitance deviation. Detector wire is electrically isolated from input and output power.
Alarm Outputs:
Maximum Load: 75 mA. Typical ON resistance at 25 mA is 25Ω. 500 mW maximum power through the switch
Voltage Range: 0 to 240 VAC RMS or 0 to 380 VDC
Leakage Current: <1 microamp
Output Type: Bi - directional, isolated solid state switches
Output Configuration: Suitable for DC source, DC sink, or AC


Due to continual product development, actual specifications may change. E&OE

Maintains optimum conveyor conditions and minimum can pressure

  • Two capacitance ranges with auto - switching capability
  • Adjustable low and high alarms
  • ‘On the fly’ adjustment of set points
  • Adjustable low and high output signal limits
  • 2 digit display to indicate signal level with a third digit for mode of operation

PERFECT SPEED MATCHING

By providing an analog signal that is proportional to can back-up on the conveyor, the LMS2400 Linear Mass Sensor can be used to modulate machine or conveyor speed accordingly. When used on the infeed to machines, the LMS controls machine speed to perfectly match the rate of cans being supplied to the machine. It will do this smoothly without overshoot across a wide speed range, eliminating the constant speed variations that are a design feature of traditional, slow-medium-high speed control systems.

STABLE CONVEYOR CONDITIONS

Stable conveyor conditions are vital for today's lightweight cans and high speed machinery. The LMS enables complete speed control with minimum changes in conveyor back up, so creating optimum conveyor conditions, empty out space, accumulation space and minimum can pressure.

CLOSE COUPLED SYNCHRONIZATION

The output of the LMS responds to each and every can instantaneously, which means that a machine does not have to wait for a sensor to cover it before it begins to respond. So close coupled installation of waxers, neckers and testers is possible, with each machine maintaining perfect inter machine back-ups/feed rates.

MANY APPLICATIONS

Can be used on mass conveyors, single file conveyors, gravity drops, variable speed conveyors, metering units. Applications are limited only by the imagination of the control engineer.

CONVEYOR PRESSURE CONTROL

The LMS enables conveyor speed to be varied relative to back up. When full, the conveyor should run at machine rate, creating no excess can pressure, but as it empties the speed should increase. So when recovering from an empty-out situation, conveyor speed is maximum, thus reducing transit and refill times, adding precious seconds to the line efficiency.

Linear Mass Sensor – how it works

EASY INSTALLATION, EVEN ON COMPLEX CONVEYORS

Another possibility is to isolate and use the side rail on one or both sides of the track to monitor can density instead of using the sensor wire. This makes installation practical on complex conveyor shapes such as swan necks or curved 'tunnel' track.

Linear Mass Sensor – how it works

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Control down the line with the world's most widely used can making sensors

Uniquely designed and precision made by Sencon, exclusively for the metal packaging industry

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With service engineers based in North and South America, Europe and Asia, backed up by support from our experienced industry specialists at three technical support centers, you can trust Sencon for support, accredited calibration and after-sales service for your Linear Mass Sensors.

95% of beverage cans worldwide have been measured, tested, controlled or influenced in their manufacture by a Sencon product