Encardio-Rite - Products

Model EDS-20V-SW Vibrating Wire Spot Weldable Strain Gage

EDS-20V-SW vibrating wire strain gage can be spot welded or epoxy bonded on steel structures, re-inforced bars and struts. It can also be epoxy bonded on concrete structures. A sensor coil housing mounted directly over the strain gage, completely encloses the sensor, forming a watertight enclosure. A pair of clamps are provided to aid in fixing the housing to the substrate using an epoxy adhesive.

Specifications:
Range	3000 µ strain
Sensitivity	1 µ strain
Active gage length	50.8 mm
Thermistor	YSI 44005 or equivalent
Temperature limit	- 20 to 80° C
Size I x b x h (mm)	87 x 22 x 18
Cable	Four-core shielded 1 m long; specify

Model EDS-20V-AW Vibrating Wire Arc Weldable Strain Gage

EDS-20V-AW vibrating wire strain gage can be arc welded on steel structures & reinforced bars for measurement of stress in tunnel lining, surge shafts, piles, struts and diaphragm walls, etc. Two annular mounting blocks are provided for arc welding the strain gage. Groutable reinforced bar annular mounting blocks are available for surface mounting the strain gage to a concrete structure. The sensor is of stainless steel construction and has waterproofing to prevent any ingress of water.

Specifications:
Range	3000 µ strain
Sensitivity	1 µ strain
Active gage length	150 mm
Thermistor	YSI 44005 or equivalent
Temperature limit	- 20 to 80° C
Size I x b x h (mm)	180 x 28.5 x 30
Cable	Four-core shielded 1 m long; specify

Model EDS-20V-E Vibrating Wire Embedment Strain Gage

EDS-20V-E vibrating wire strain gage is suitable for embedment in soil or concrete. It is used to measure strain in underground cavities, tunnels, buildings, concrete and masonry dams etc. Waterproofing is provided on the strain gate sensor to prevent ingress of water.

Specifications:
Size I x b x h (mm)	170 x 28.5 x 30
Other specifications same as EDS-20V-AW

Model EDS-11V Hermetically Sealed Vibrating Wire Strain Gage

EDS-11V is a very sturdy and robust high reliability strain gage suitable for embedment in mass construction or for surface mounting by welding on steel structures. The sensor is electron beam welded, generating a vacuum of 1/1000 Torr inside the sensor. This eliminates any effect of oxidation, moisture and ingress of water. Accessories available include spider for stain rosette, no stress strain container, dummy strain gage and extender.

Specifications:
Range	± 1500 µ strain
Sensitivity	1 µ strain
Active gage length	140 mm
Thermistor	YSI 44005 or equivalent
Temperature limit	- 10 to 80° C
Protection	IP - 68
Cable	Glass to metal seal solder pin connector

Model EDS-30V Shotcrete Strain Gage

EDS-30V shotcrete strain gage is a vibrating wire strain gage specially designed to monitor both tensile and compressive strain in shotcrete or concrete linings of underground excavations. EDS-30V has a much larger strain measurement range compared to other conventional concrete embedment strain gages like Encardio-rite model EDS-20V-E or equivalent.

Specifications:
Range	15,000 µ strain
Effective gage length	166 mm
Overall diameter	19 mm
Protection Class	IP - 68
Temperature limit	- 20 to 70° C

Model EDS-12V Vibrating Wire Sister Bar Strain Meter

EDS-12V vibrating wire sister bar is used to measure strain in concrete structures such as piles, diaphragm/slurry walls, bridge abutments, tunnel lining, dams, foundations, etc. It consists of a hollow bar with vibrating wire gage mounted co-axially inside. The hollow bar is extended on the two sides with 12 mm Ф reinforced bars.

Sister bar strain meter is also available with 16.0 mm Ф reinforced bars option.

Specifications:

Range 24500 µ strain

Sensitivity 1 µ strain

Maximum Ф x 1 (mm)
26 x 1400 for (12.0 Ф)
30 x 1400 for (16.0 Ф)

Thermistor
YSI 44005 or equivalent

Cable
Four-core shielded 1 m long; specify