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DynaProbe
ULTRASONIC LEVEL METER
Dynameters Series DynaProbe level meter uses sound waves to measure liquid or solid level.  Fast, accurate measurements are possible in the field or anywhere without the use of down-hole water level meters.  The Ultrasonic Level Meters are lightweight, compact, versatile, and easy to operate. As long as the obstructions take up no more than half of the bore area the meter will not suffer any loss of accuracy. 
TECHNOLOGICAL PRINCIPLE
 
The level meter is composed with the designed in the integrative ultrasonic wave sensor and electronic unit. The level meter installs on the top of the container, under the control of the electronic unit, the sensor launches a bunch of ultrasonic pulses to the things of tested. Sound wave is reflected by object surface, parts of reflected return waves echo are received and change into the electric signal. The time of launching ultrasonic wave to receiving it again is direct ratio to the distance of sensor to the things of tested. The electronic unit measures the time, and calculate out the distance examined according to the known velocity of sound. Then draw the location value of things through subtraction operation.
 

Ultrasonic wavespread speed among gas is influenced by gas temperature, when level meter works , it measures gas temperature needed, compensates for the velocity of sound, so as to ensure the precision of measuring. While level meter launches the ultrasonic pulse, it can¡¯t measure the return waves at the same time. One short distance downward from sensor is Blind Space. If the supreme thing location examined enters the blanking distance, the instrument can¡¯t measure correctly, then error. If needed, we can count the level meter and increase to install.
Features:  
¡ôIntegrated design, installed conveniently
¡ôtwo wire transmitter standard, guarantee that the powerful sound wave is launched , that measurement is steady and reliable
¡ôProtected in the excessive voltage and current , protected in the thunder and lightning
¡ôThe big show window of LCD is easy to debug and observe
¡ôIntellectual signal treatment technology, guarantee that the instrument meets various kinds of operating occasion
¡ôAll plastic outer cover ( IP67 ), airproof and alkali-resisting, meet the abominable environment
¡ôFlexible support or flange are used to install.
TECHNOLOGICAL SPECIFICATION
Measuring Range£º
Liquid 4.00m 6.00m 8.00m(A) 10.00m 15.00m 20.00m 30.00m
Solid ¡¡ ¡¡ 3.00m 4.00m 6.00m 10.00m 15.00m
Blind Space£º
 ¡¡
Measuring Range 4m 6m 8m(A) 10m 15m 20m 30m
Blind Space 0.20m 0.25m 0.30m 0.40m 0.60m 0.80m 1.20m
Accuracy£º
 0.2% Full Span (In air)
Resolution Ratio Shown£º
Measuring Range: 4m 6m 8m:
1mm
Measuring Range: 8.00m(A) 10m 15m 20m 30m:
1cm
Mode of Indication£º
 4 Digit LCD
Output Current£º
4~20mA
Output Load£º
0~500¦¸
Output Resolution Ratio£º
0.03% full span
Parameter Set Up£º
3 induction buttons
Temperature Range:
£¨-40ºC to 80ºC£©
Temperature Compensation:
The whole range is automatic
Pressure Range:
¡À0.1MP (press definitely)
Power Supply:
DC24V ¡À20% 30mA
Cable Diameter:
F6~F12mm
Single Wire Diameter:
F0.5~F1.78mm
Cable Fix£º
PG13.5
Beam Angle£º
 8º(3db) Measuring Range 4m 6m 8m
5º(3db) Measuring Range 8m(A) 10m 15m 20m 30m
Measure Cycle£º
1second
Crust Material:
ABS
Sensor Material£º
 PVC
Protect Grade£º
IP67
Mode Installation£º
 Flange or the support
Flange Standard of Butt Joint£º
Measuring range 4m 6m 8m£º
Minimum DN65
Measuring range 8m(A) 10m£º
 Minimum DN80
Measuring range 15m£º
 Minimum DN150
Measuring range 15m 20m 30m£º
 Minimum DN200
Selection Table of DynaProbe Level Meter  
 

Explain: 1. For two-wire system, the meter of 12m and 40 m range is not available.
¡¡¡¡¡¡¡¡  2. For three-wire system, the meter of 40m range is not available.
¡¡¡¡¡¡¡¡  3. For four-wire system, the meter of 10m range is not available.
¡¡¡¡¡¡¡¡  4. For separate simplicity ones, the meter of 12m, 30m and 40 m range is not
¡¡¡¡¡¡¡¡¡¡available.
¡¡  5. For four -wire system with 24vdc power supply, the LED display will be
¡¡¡¡¡¡¡¡¡¡available. The others will be of LCD display.
 
How to choose separate ultrasonic level meter
¡ômeasuring range
Select model number according to actual range.
Select model number with bigger range if medium level fluctuates strongly.
The range of solid level is generally one-half to two ¨Cthird of that of liquid.
 
¡ôpower supply
l          DC24V POWER SUPPLY£º
1.        For two-wire system,the power supply current should not be less than 30 mA.¡¡
2.        For three-wire system, the power supply current should not be less than 60 mA.
 
3.        For four-wire system, the power supply current should not be less than 80 mA.
l          220VAC POWER SUPPLY£º
Only for four-wire system, the power supply current should not be less than 50 mA.
 
¡ôMounting conditions for tank
l          closed tank
1.        For range less than 8m, the size of orifice on tank should be more than that of  DN65 flange;
2.        For range of 10m and 12m, the size of orifice on tank should be more than that of DN80 flange;
3.        For range of 15m, the size of orifice on tank should be more than that of DN150 flange;
4.        For range of 20m, 30mand 40m, the size of orifice on tank should be more than that of DN200 flange;
l          open tank
1.        For range less than 8m, the diameter of orifice on tank should be more than 65mm.
2.        For range of 10m and 12m, the diameter of orifice on tank should be more than 80
and its thickness should be less than 15cm.;
3.        For range of 15m, the diameter of orifice on tank should be more than that 150mm and its thickness should be less than 15cm.
4.        For range of 20m, 30mand 40m, the diameter of orifice on tank should be more than 200mm and its thickness should be less than 20cm.
l          open pond
Fixing stand should be needed.
Open type pond son
Should adopt to add high gearing, keep sensor of the ultrasonic levelmeter forming frost or freezing.
l          tank
When mounting flange is applied, means for keeping warm should be done.
If no means to warm, please order the meter with lengthened probe into inner of the tank.