LOAD PINS FOR QUICK RELEASE HOOKS

INTRODUCTIONThe MARIMATECH load pins are individual designed to fi t into any hook manufactures equipment. The load pins are made of a special stainless steel quality with an extreme high strength. This special material is typically used in aircraft landing gear and marine propeller charfts. The construction is IP68 protected and the stain gauge chamber is fi lled with special compound that makes the gauging and wiring inside extreme robust to withstand the shock when releasing the hook in full load.

PERFORMANCEThe highest quality strain gauges are used to ensure optimum lifetime performance. The load pins are temperature compensated to ensure full accuracy over a large temperature span ranging from –20° to +80°. The cable that connects the load pin with the amplifi er/processor unit is well protected inside a special rubber hose that can withstand the wide temperature range, saltwater and chemicals found in grease. Each individual load pin is carefully calibrated from the factory enabling the user to change load pins with no requirement for individual recalibration. A special amplifi er module has been designed to protect the load cells from the cable network to avoid damage in case of induction caused by lightening. The amplifi er module is equipped with a processor unit that will keep track of the loads just by itself. This means that the load values are memorised in this amplifi er module keeping track of about

• High performance stainless steel• Down hole gauging• Single or double gauging• No amplifi er build-in• Factory calibrated• Shaped to any hook type• Amplifi ers with integrated processor• Outputs real calibrated load values• Interfacing to LAN/TCPIP • Processor providing hook status

1 year of data. Should the central computer for some reason fail the history is always available in the amplifi er unit.

The output from the amplifi er LMS 4 (LAN Micro Server) unit is LAN (Local Area Network). Each amplifi er has 4 LAN switch connections offering fl exible cable connections. Furthermore one LMS 4 amplifi er unit will read up to 4 hooks (load pins) simultaneous (quad hook). The LMS 4 amplifi er has also in- and outputs for remote quick release control as well as connection to local overload alarms. To summarize:

LMS 4 amplifi er module input for 4 load cellsBuild-in processorLocal data storage of over 1 yearLAN connection (cable LAN, WLAN and fi bre LAN)Output to local alarm, audio and/or fl ashOptional output to local displayIntegrated input/output to handle remote quick releaseDiagnostic via InternetSimplifi ed cabling (loop cable) LAN netTemperature ranging from –20° to over 80°Compact designEasy trouble shooting

MARIMATECH ASSamsøvej 31DK-8382 HinnerupDenmark

Phone +45 86 91 22 55Fax +45 86 91 22 88E-mail mail@marimatech.comWeb www.marimatech.com

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Load Pin Gauging Principle

SPECIFICATION AND PERFORMANCE DATA

Load Measuring Pin Amplifi er Transmission

Hazardous/Non-Hazardous area class type EEx d - IIB T6 EEx d - IIB T6

Material 17-4PH stainless steel

Type SLP LMS 4

Quad Bridge Bridge amplifi er

Accuracy ±2% of full load ±0,1% of span

Range 60/100/125/150/250 0-2 mv/v

Data connection LAN/Fibre LAN/WLAN

Data starage Min. 1 year

Sampling range 2 pr sec. pr. load pin

Proof load in % of rated load 150%

Factor of safety 5:1

Rated output 0.8- 2 mv/v

Input signal type Bridge 0-2 mA

Output signal type LAN/Fibre LAN/WLAN1/10/100 mbit

Operating temperature range -20˚ to +70˚ -20˚ to +80˚

Cable type, copper Twisted pair / screened

Cable cores 2 x 0,22mm2

Max copper cable length 120 m

Cable type, Fiber Optical 62,5µmultimode

Max Fiber Optical cable length 2500m

Max. no. of load pins pr. module 4

Connection details Screw terminals

Power supply required 85-265 VAC 0,3 amps. 85-265 VAC 0,3 amps. 85-265 VAC 0,3 amps.

Power consumption 3.5 Watt

Weight 5 - 50kg 180 gr.