swiss sensor technology

Description of the

The ELC load cell is an electronic force transducer for monitoring and determining anchor forces, crane forces and other large forces. The ELC series anchor load cells are optimised for anchor systems approved in Switzerland.

These force transducers consist of a stainless steel cylinder fitted with strain gauges in a temperature-compensated arrangement. The sensor is designed for use in harsh conditions: maintenance-free, dust and water-protected in accordance with IP 68, it can be used over a wide temperature range. The load cell contains an in-built temperature sensor that provides additional information about the ambient conditions. The sensor itself is fully temperature-compensated.

ELC load cells are supplied in various load ranges and customised internal diameters to suit the respective anchor head. Special versions are available on request. The type of load cell is automatically recognised by the Enertec measuring devices. This means that the user does not have to manually select the type of load cell in order to obtain the correct force value.

The load cell has a calibrated output signal in mV/V. Thanks to a 6-wire circuit, the measurement signal is independent of the cable length. The measuring cable is attached to the load cell securely and waterproof with a stainless steel cable gland. The cable length can be freely selected by the customer. The enclosed shielded cable contains a watertight plug with cap. Versions without a plug are optionally available.

The housing of the ELC is also made of stainless steel and is therefore very robust, shock and impact resistant.

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Application

Monitoring of strand anchors
Monitoring of bar anchors
Retaining walls
Deep excavation pits
Tunnelling
Diaphragm walls
Back anchorages
Struts
Rock anchor

Features

Load cells from 600 to 3,000 kN nominal load
Integrated temperature sensor
Automatic detection of the type by Enertec measuring devices
Stainless steel elastic element
Protection class IP 67
Output signal Standard mV/V
Waterproof stainless steel cable gland

Robust, UV, acid and oil-resistant signalling cable
Integrated overvoltage protection
Freely selectable cable length
Plug at cable end or free cable ends on request
Matching with the corresponding anchor head of the anchor supplier on request
Continuous load is 80% of the rated load - 10% temporary overload
Special designs on request in top quality and short delivery times

Technical data

Type	ELC 600/60/50	ELC 1000/88/80	ELC 1000/100/80	ELC 1000/105/80	ELC 1500/125/80	ELC 2000/160/80	ELC 3000/190/80
Nominal load [kN] (FS)	600	1000	1000	1000	1500	2000	3000
Permanent load [kN]	480	800	800	800	1200	1600	2400
Permitted overload [kN]	110%	110%	110%	110%	110%	110%	110%
Inside support blade (A) [mm]	60	88	100	105	125	162	190
Edition issue diameter (B) [mm]	70	99	111	116	139	179	212
Outside diameter er(C) [mm]	83	114	129	140	154	203	254
Height (H) [mm]	50	80	80	80	80	80	80
Signal [mV/V]	3.3	3.3	3.3	3.3	3.3	2.12	2.12