Piezometer Model EPP-30V

• Sensor Type: Vibrating wire

• Range (MPa): 0.2, 0.35, 0.5, 0.7, 1.0, 1.5, 2.0, 3.5, 5.0, 10.0, specify

• Accuracy : ± 0.25 % fs standard | ± 0.1 % fs optional

• Non-linearity : ± 0.5 % fs

• Over range limit: 150 % fs of range

• Temperature limit: -20° to 80°C

• Thermistor: YSI 44005 or equivalent

• Dimension (Φ x L): 42 x 185 mm

• Parameter: Water level/pore pressure

• Protection (Waterproofing) : IP-68, water resistant up to its full range

• Key Testing / Calibration:

-Thermal cycling (-20 to +80°C)

- Pressure cycling (2000 cycles), individually temperature compensated, reverse pressure test, individually calibrated providing high accuracy & repeatability

• Key Feature/Advantage: Hermetically sealed with electron beam welding

• Insulation resistance: Better than 500 MOhm at 12 V

• Enclosure: Stainless steel - standard, Saline protection - optional

India

• Used for embedment in soil, rockfills, concrete for pore pressure monitoring

• Observation well for water level monitoring

• To determine the flow pattern through earth/rock fill and concrete dams and their foundations and to delineate the phreatic line.

• Measuring the elevation of ground water in stand pipes, boreholes and wells.

• Hydrological investigation, construction control, stability investigation and monitoring of earth dams, foundations, shallow underground works and surface excavations.

• Monitoring & control of de-watering & drainage.

• Pressure and thermal cycling

• Unique method of wire clamping

• By generating a vacuum of around 1/1000 Torr inside the sensor by electron beam welding.This results in effect of oxidation, moisture, environmental conditions and any ingress of water being completely eliminated.

Piezometer Model EPP-30V Specification Document

Hubungi: Mertani Team