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4-20 mA 
Programmable Submersible 
Depth Sensors 
MPO

These vented depth sensors are designed to measure temperature compensated water level with an accuracy of 0.15%, and 12 bit resolution.
  • Accuracy: 0.15% FS
  • Overvoltage protection
  • Overpressure: 3X-10X
  • Resolution: 12 bit
  • Programmable water density etc. by PC
  • 3-Wire system with integrated 4...20mA output
Technical Characteristics

Measuring ranges: 1...3.5/6.9/17.3/ 34.6/69.2/173/346/692 ft.
Temp. range: -4 F...158 F
Power supply: DC 9.6...28.8V
Power Consumption: lLoad = 11 mA + lout < 33 mA
Accuracy class: 0.15% of full scale
Price: $660.00
Includes 20 ft. of Vented Cable
Additional Vented Cable: $1.30 per ft.
4...20mA
LowCost piezoresistive pressure/
level sensors with  output
MPU
This depth transmitter has a 4...20mA 2 wire technique that serves as a continous hydrostatic level measurement in unpressurized containers as well as in still and running waters.  A venting tube compensates for fluctuations in atmospheric pressure. Suitable for all liquids. 
  • Pressure measurement using the Piezoresisitive principle 
  • Accuracy 0.25% for pressure
  • Fixed ranges in bar/ psi/ m/ ft 
  • 2-Wire system with 4...20mA output 
  • Diameter less than 1” 
Technical Characteristics

Measurement range:1...6.9/17.3/34.6/ 69.2 ft
Non-Linearity & hysteresis: max 0.25% fs
Supply Voltage: DC9..16 V
Overvoltage protection: Integrated fine protection, optional external coarse protection
Operating Temp. Range: -4F...158F
Price: $465.00
Includes 20 ft. Vented Cable
Additional Vented Cable: $1.30 per ft

                  4...20mA
                  Submersible Depth Transmitter II
  

The STD II is a totally sealed sensing device designed for various water level measurement applications.  Low ranges ideal for open-channel flow applications, while higher range untis may be used for ground water, storage tank etc.
  • 4...20 mA output
  • Totally submersible
  • Stainless steel transducer in a PVC housing
  • Compact, easily mounted or inserted in small diameter wells
Technical Characteristics

Power: 12.5-35 VDC
Output: 4-20 mA current signal, linearly corresponding to range
Operating Temp: 33F - 122F
Media: Any media compatible with 316 stainless steel, PVC, nylon, and polyurethane
Accuracy: Linearity .25% of full scale
 
Price: $675.00
Cable: $1.60 per ft

                 SDI-12

                 Depth Sensor

  
submersible

The MPSDI is designed to measure pressure and water level with high accuracy (better 0.01ft.). The submersible unit is connected to a vented cable for error-free compensation of barometric pressure changes. The incorporated electronics compensates nonlinearity and also temperature variations in a wide range resulting in an increased accuracy.

The SDI-12 compatible serial-digital interface enables output of pressure, level and temperature values as well as the user-specific programming of the sensors in a multidrop bus confuguration. Via the SDI-12-interface, MPSDI pressure sensors can be connected to computers, data loggers etc. Low power circuitiy combined with a sleep-mode keeps power consumption to a minimum. 
Applications
  • Level sensors for small-bore applications 
  • Measurement of gas pressures 
  • Pressure / level measurement instorage and run-of-river power stations, water supply plants, sewage treatment plants
  • Level mesurements in hydrology (navigation locks, weirs, irrigation plants etc.) 
Technical Characteristics

Measuring Ranges: 0 ... 0.1 bar to 0 ... 50 bar
(0 ... 145 psi up to 0 ... 725 psi)
Overpressure: 3 to 6 times (depending on the range)
Accuracy: < 0.05% of full scale or 3 mm (0.01 ft) for ranges < 5 m (15 ft)
Temperature Influence: typ. < 30 ppm/ºC of full scale
max. < 50 ppm/ºC of full scale
Operating Temp.: (-4ºF ... 158ºF)
 (-36.4ºF ... 158ºF) optional
Communication: Bidirectional serial bus, multidrop communication, up to 10 sensors, SDI-12 protocol
Overvoltage protection: Built-in protector up to 2000 V (transient)
Price: $960.00
Includes 20 ft. Vented Cable
Additional Vented Cable: $1.30 per ft

For additional information call:
1-800-897-6266
or email
Advanced Measurements & Controls, Inc.