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VH400 - Low-Cost Soil Moisture Sensors Quick view

Reference: VH400-2M

Brand: VEGETRONIX

VH400 - Low-Cost Soil Moisture Sensors

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VH400 Soil Moisture Sensor Probe Specifications Power consumption: < 13mA Supply Voltage: 3.5V to 20 VDC. Dimensions See drawing. Power on to Output stable: 400 ms Output Impedance: 10K ohms Operational Temperature: -40ºC to 85ºC Accuracy at 25°C: 2% Output: 0 to 3V related to moisture content Shell Color: Red Voltage Output Curves: Curves, Piecewise...
From Price €78.00
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M&J UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger Quick view

Reference: UA-002-64

Brand: ONSET

UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger

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A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.  IMPORTANT INFORMATION Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
Price €100.00
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LPTPC-V Total Earth Pressure Cell
  • LPTPC-V Total Earth Pressure Cell
  • LPTPC-V Total Earth Pressure Cell

LPTPC-V Total Earth Pressure Cell

LPTPC-V

LPTPC-V Total Earth Pressure Cell

Total Earth pressure cells are designed to measure stress acting on flat surfaces.

Product Features

  • Long-term stability
  • Constant monitoring capability
  • Stainless steel construction
  • High accuracy and sensitivity
  • Easy data logging
Quantity

Description

Overview

Total Earth Pressure Cells are designed to measure stress acting on plane surfaces. Total Earth Pressure Cells are constructed from two circular stainless steel plates, welded together around their periphery. The annular space between these plates is filled with deaired glycol. The cell is connected via a stainless steel tube to a transducer forming a closed hydraulic system. The stress is then converted to a signal and may be remotely read on a variety of portable readout units or data loggers.

RST Total Earth Pressure Cells are calibrated as a complete assembly (rather than just the sensor) to capture the calibration of the complete cell for highest quality of data.

ITEM MODEL LPTPC-V MODEL LPTPC-S
Transducer Type Vibrating Wire Silicon Strain Gauge
Range – Standard Calibration Up to 2.0 MPa (300 psi) Up to 2.0 MPa (300 psi)
Range – Max Available 20 MPa (3000 psi) 20 MPa (3000 psi)
Calibrated Accuracy 0.15% F.S. 0.15% F.S.
Resolution 0.025% F.S. minimum Infinite
Excitation Voltage 5 V sq. Wave Dependent on sensor
Signal Output 1200 – 2000 HZ 4-20 mA
0-5 VDC
0-10 VDC
4-20 mA +
RS485
0-5 VDC +
RS485
Thermistor Yes (standard) Optional (can be added)
Conductor 4 X #22 (2 for VW, 2 for Thermistor) 4 X #22 | 2 X #22
Operating Temperature -20 °C to +80 °C / -4°F to +176 °F -20 °C to +80 °C / -4°F to +176 °F

Total earth pressure cells are commonly used for:

  • Earth embankments and dams.
  • Foundations, retaining walls, and piles.
  • Pipelines and culverts.
  • Railroad foundations.
  • Under-slab foundations.
  • Tunnel linings.
  • Mine backfill monitoring.

See illustrations of how total earth pressure cells are used for:

  • Concrete dams
  • Concrete-faced rockfill dams
  • Open-pit mines
  • Underground mines
  • Tailings dams
  • Tunnels
  • Buildings
  • Roads
TRANSDUCER STANDARD CELL DIA. STANDARD PRESSURES HIGH PRESSURES LOW PRESSURES
(0.35 MPA – 3 MPa) (>3 MPa – 20 MPa) (<0.35 MPa)
Vibrating Wire 24.1 cm (9.5 in.) LPTPC09-V LPTPC09-V-HP LPTPC09-V-LP
Vibrating Wire 31.7 cm (12.5 in.) LPTPC12-V LPTPC12-V-HP LPTPC12-V-LP
Silicon Strain Gauge 24.1 cm (9.5 in.) LPTPC09-S LPTPC09-S-HP LPTPC09-S
Silicon Strain Gauge 31.7 cm (12.5 in.) LPTPC12-S LPTPC12-S-HP LPTPC12-S

ITEM PART #
Standard Cable EL380004
Heavy Duty Cable EL380004HDL
Cable with HDPE Jacket EL342202
Mounting Ears (4 tabs) LPTPC-4EARS
Mounting Ears (3 tabs) LPTPC-3EARS

Other Ordering Info
Model Type.
Pressure range requirements.
Cable length and Type.
Ear option.
Downloads +

Product Details
LPTPC-V
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