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JooShin
VW Type Piezometer Corporation

Description
VW Piezometer type pore pressure meter is designed to test the pore water pressure and liquid pressure of pressure
vessel, pipe line, soft ground or embankment foundation, embankment and inside the boring hole.
High accurate NTC thermistor and arrestor were mounted in order for zero compensation by change of the Temp.
and also high density epoxy resin and stainless steel special materials were adopted to allow semi-permanent measurement.

Application

* Measurement of pore water pressure at soft ground field
* Water level measurement at river, reservoir and standpipe
* Research of stability of slope and ground
* Measurement of leakage and underground water flow of
dam, embankment and lake.

Feature

* High stability that can be worked under extreme conditions.
* Excellent reproducibility and responsibility which is free from
the cable length and change of resistance
* Optimization by use and supersensitive design
* High accurate temp sensor and lightning protection device mounted.

Specification

Model SJ - 4000 SJ - 4050
Type General Heavy duty
2
Capacity 2-70kg/cm
Max. Pressure 150 % FSR
Resolution 0.025% FSR

Accuracy +/-0.1% FSR
Non-linearity +/-0.5% FSR

Operatration Temp. -20 °C ~ 50 ° C
Temp sensor NTC Thermistor (3KD-ATF)
Temp sensor operation range Thermistor: -40 °C ~ 80 ° C

Temp sensor accuracy Thermistor : ±1°C
Filter Stainless sintered filter 70µm
Lightening Protection Tube Gas Arrester (Frequency output line)

Main material Stainless special steel, High density epoxy potting
Dimension 130mm X Ø 20mm 133mm X Ø 25.4mm
Weight 0.2kg

Material Special stainless steel , High density epoxy

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