Strain Gauge Anchor Load Cell
FEATURES
-Capacities 300KN~2500KN | |||||||
-Alloy steel & Stainless steel construction | |||||||
-Protection IP67 | |||||||
-Compact size with low profile | |||||||
OPTION FEATURES | |||||||
4-20mA, 0-10VDC |
DESCRIPTION
The anchor load cell ALC series load cell consists of a cylinder of high strength steel with a series of electrical resistance strain gauges connected around the periphery as a Wheatstone Bridge that compensates for unevenly distributed loads and provides a single mV/V signal output.
They are manufactured with a centre hole to accommodate anchors, rock bolts and tendons.
When the load cell is subjected to load the resistance of the strain gauges will change and the output signal is directly proportional to the applied load. The load cells are compensated for temperature variations often found during normal operating environments and have in-built lightning protection.
Connection to the load cell is via a heavy duty multi-core sheathed cable which can be connected to a direct portable readout, switched terminal units or a data logging system. Mounting surfaces should be flat and parallel for optimum performance and the use of abutment plates and load distribution plates is recommended.
The abutment plate (provided locally) is normally made to suit specific site requirements and the load distribution plate should be inserted between the load cell and the anchor head.
OUTLINE DIMENSIONS in mm; 1mm=0.03937 inches
SPECIFICATIONS
Accuracy class | 0.5 | %F.S | ||||||||||||||
Rated output | 2.0±0.01 | mV/V | ||||||||||||||
Zero balance | ±1 | %F.S | ||||||||||||||
Repeatability Error | 0.1 | %F.S | ||||||||||||||
Creep Error over 30 min. | 0.01 | %F.S | ||||||||||||||
Temperature effect on zero | 0.02 | %F.S/10℃ | ||||||||||||||
Temperature effect on output | 0.02 | %F.S/10℃ | ||||||||||||||
Temperature Range,compensated | -10…+40 | ℃ | ||||||||||||||
Operating Temperature Range | -30…+70 | ℃ | ||||||||||||||
Storage Temperature Range | -50…+85 | ℃ | ||||||||||||||
Input resistance | 750±20 | Ω | ||||||||||||||
Output resistance | 702±3 | Ω | ||||||||||||||
Insulation resistance(50V) | 5000 | MΩ | ||||||||||||||
Recommend excitation voltage | 5~10 | V DC | ||||||||||||||
Maximum excitation voltage | 15 | V DC | ||||||||||||||
Safe load limit | 150 | %F.S | ||||||||||||||
Breaking load | >300 | %F.S | ||||||||||||||