The Pressure Cell Model EPS-30V-S (MTI.EWS.ER.M-EPS-30V-S). Sensor earth and concrete pressure cell
basically consists of a flexible, circular flat capsule
connected to a specially designed pressure sensor by a 6
mm ϕ x 170 mm long stainless steel tube.
Like any closed hydraulic system, pressure cell is sensitive
to temperature effects. Any change in temperature
of surrounding concrete can give an unauthentic reading, magnitude of which depends upon elasticity
of surrounding concrete and relative coefficient of
expansions of materials in contact & filled fluid inside
the pressure cell. The sensor has an in-built thermistor
to assist in separating these unauthentic temperature
effects from actual pressure changes.
The sensor offers three types of pressure cells – earth
pressure cells, concrete pressure cells and interface
pressure cells.
Pressure Cell Model EPS-30V-S
• Sensor Type Vibrating Wire
• Range (MPa) 0.5,1.0,2.0,3.5,5.0,10.0, specify
• Accuracy of pressure transducer ± 0.5% fs standart, ± 0.1% fs optional
• Temperature limit operational -20 to 80°C
• Over range limit 150% of range
• Thermistor YSI 44005 or equivalent (3 kOhms at 25°C)
• Enclousure Stainless Steel