UGT 104000 Operating Manual Download Page 4

 
 
 

 

 

 

 

Umwelt-Geräte-Technik GmbH

  |  Eberswalder Str. 58  |  D-15374 Müncheberg  |  phone: +49 (0) 33 43 2 - 89 575 |  

www.ugt-online.de

       Page 4 of 12 

 

1.1.

 

Safety Instructions 

Tensiometers  are  measurement  devices  for  the  determination  of  soil  water  tension  and  should 
only  be  used  for  that  purpose.  Please  note  that  damage  due  to  improper  handling  may  not  be 
covered by warranty. 

 

Please attend to the following safety instructions for your own protection and for maintaining the 
full functionality of the device: 

 

CAUTION

 

 

Freezing of water within the tensiometer may result in permanent 
damage  of the tensiometer.  Make  sure to  store the tensiometer 
in  a  frost-free  environment.  At  temperatures  below  0°  C  the 
tensiometer should not be used for measurements. 

Protect from  

frost 

 

 

 

 

CAUTION

 

 

High  pressure  may  lead  to  permanent  damage  of  the  pressure 
transducer.  Avoid  compression  of  trapped  media  during 
installation or when putting on protective caps.  

 

Protect from  

high pressure 

 

 

CAUTION

 

 

Sudden  pressure  drops  inside  the  tensiometer  may  result  in 
permanent  damage  of  the  pressure  transducer.    Do  not  open  the 
screw  plug  when  a  negative  pressure  is  applied  inside  the 
tensiometer. This accounts for all available types. 

Protect from sudden 
pressure drops 

 

CAUTION 

 

Mechanical forces may result in damage of the ceramic and/or the 
pressure  transducer.  Prevent  jolting  or  hard  hitting  as  well  as 
partial pressure on the ceramic by rocks in the soil. 

Protect from 
mechanical forces 

 

 

 

CAUTION 

 

Grease,  talc  and  solvents  may  influence  the  properties  of  the 
ceramic. Aggressive media may affect the whole device and lead 
to permanent damage. Do not touch the ceramic with bare hands. 
Use only pure water and no detergent for cleaning. 

Protect from 
chemical influences 

 

Summary of Contents for 104000

Page 1: ...ual Tensio 140 Version 18 06 19 Laboratory Tensiometer Umwelt Ger te Technik GmbH Eberswalder Str 58 D 15374 M ncheberg phone 49 0 33 43 2 89 575 fax 49 0 33 43 2 89 573 e Mail info ugt online de www...

Page 2: ...ters What Is Tension 5 2 2 What Are Tensiometers Used For 6 2 3 How Does a Tensiometer Work 6 2 4 Under Which Conditions Can a Tensiometer Be Used 7 3 Set Up and Technical Parameters 9 3 1 Set Up 9 3...

Page 3: ...and robust shaft An additional service to this manual is our tutorial on how to refill the Tensio 100 which can be found at the following link https www ugt online de en products soil science tensiom...

Page 4: ...gh pressure may lead to permanent damage of the pressure transducer Avoid compression of trapped media during installation or when putting on protective caps Protect from high pressure CAUTION Sudden...

Page 5: ...also called the matrix potential or simply pressure head The tension is defined as a negative pressure and therefore is signed positive if the applied pressure is negative A pressure of 50 kPa in the...

Page 6: ...comprehensive analysis of the water balance of a region or an ecosystem 2 3 How Does a Tensiometer Work A Tensiometer consists of an air tight sealed water filled measurement volume a unit where the p...

Page 7: ...tional water filled tensiometers is physically limited by boiling of the water The boiling point of water according to standard 99 6 C at 1013 25 hPa 1 bar is pressure and temperature dependent The bo...

Page 8: ...connect the pore system of the soil and the porous material Tensiometers should be installed in moist soil if possible When using an auger for the installation the diameter of the borehole must be sl...

Page 9: ...arameters Tension range 30 100 kPa Operating temperature 0 40 C Response time 1 s Power supply Power consumption 9 30 VDC 3 mA Output signal 0 1 VDC Linearity error 0 5 FSO Temperature coefficient 0 0...

Page 10: ...GmbH Eberswalder Str 58 D 15374 M ncheberg phone 49 0 33 43 2 89 575 www ugt online de Page 10 of 12 3 3 Pin Assignment Color Signal name 1 brown Vs 9 30VDC 2 white Signal output 0 1VDC 3 blue Case s...

Page 11: ...Hold the tensiometer with the ceramic cup pointing to the floor Tap gently against the shaft to loosen possible air bubbles from the inner tensiometer walls Turn the tensiometer slowly about 90 Existi...

Page 12: ...ter to dry out Repair possible damages repairs are best executed by qualified technicians of our company and remove air bubbles by refilling distilled water through the safety screw Protect the tensio...

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