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Running line monitors

Running line monitors provide data logging and can measure load speed and distance up to 100 tonnes.

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Easy to set up and use, our individual units are designed to suit wire rope sizes and load, and are available for both safe and hazardous areas. For optimal accuracy and repeatability a 5-roller system of operation is applied. Options for accommodating load speed and distance are available and data logging is offered on most variants.

Download Strainstall's running line monitor data sheet.

Features and benefits of running line monitors:

  • Robust stainless steel protection cage for electronics
  • Corrosion resistant design

Cabled running line monitor typical specifications:

  mA output
Rated load As required
Proof load 200% of rated load (dependent on rope capacity)
Rope diameter 10mm to 125mm
Non linearity < ± 1% of full scale
Non repeatability < ± 0.01% of full scale
Zero balance < ± 0.01% of full scale
Environmental protection IP66
Operating temperature -20oC to +60oC
Storage temperature -30oC to +80oC
Output signal 4-20mA (load)
Pulsed output, quadrature mode (distance / speed) 
Electrical connection 8 core (load and distance / speed)
Cable connection Gland and connector
Cable length 5m as standard
Recommended supply voltage 24V
Maximum supply voltage 30V

Wireless running line monitor typical specifications:

  Wireless output
Rated load As required
Proof load 200% of rated load (dependent on rope capacity)
Rope diameter 10mm to 125mm
Non linearity < ± 1% of full scale
Non repeatability < ± 0.01% of full scale
Zero balance < ± 0.01% of full scale
Environmental protection IP66
Operating temperature -20oC to +60oC
Storage temperature -30oC to +80oC
Output signal Wireless 
Data logging On running line monitor
Battery type 3 x D
Active battery life Up to 350 hours
Standby battery life Up to 1700 hours
Telemetry frequency 2.4Ghz ISM
System range Up to 350m
Sampling rate 10Hz (500Hz max)

Diagrams:

Side view cabled Top view cabled Side view wireless Top view wireless

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Cabled RLM - top view 320x320.jpg

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Wireless RLM - side view 320x320.jpg

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Wireless RLM - top view 320x320.jpg

Running line monitor typical dimensions:

  Sheave size A mm B mm C mm D mm E mm F mm G mm
(wireless) 
Model 1 10-25 722 250 62 601 112 162 95
Model 2 22-28 810 270 90 785 146 186 95
Model 3 32-40 963 297 90 899 148 188 95
Model 4 42-46 1028 331 95 936 153 193 95

Available options:

  • Cabled or wireless
  • Aluminium or stainless steel
  • Hazardous area Zone 0, 1 and 2
  • Various display options
  • Mains or battery powered indicators
  • Three or five roller system
  • Customised system design service
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