UMS HYPROP Manuel utilisateur
Operation Manual
HYPROP
This manual is also available in German:
http://www.ums-muc.de/static/Bedienungsanleitung_HYPROP-VIEW.pdf
At a glance – how it works
Evaporation
Soil sample
Sampling ring
Balance
Tensio Top
Tensio Bottom
to USB
interface
Pressure sensors
Sensor unit
HYPROP®is a fully automated measuring and evaluation system to
determine the hydraulic properties of soil samples. HYPROP measures
the water tension at two levels of a sample using two tensio shafts. If the
conductivity of the sample is poor the soil in the upper horizons dries
out whereas the lower horizons are still humid. So the upper tensio shaft
measures much drier tensions than the lower one which is still humid. If the
conductivity is good water is evaporated out of the whole sample and
both tensions are almost identical. The water content for the pF/WC curve
is calculated based on the weight loss of the sample.
This measuring concept is based on Schindler’s method. Please find further
information in the chapter “Theory”.
Legend
water electronics soil
water vapor ceramic all other parts cross section of a part
Parts of the device
and scope of delivery
sample ring
sensor unit
O-ring (red)
for sealing the tensio shafts
to the pressure sensor
ceramic
shaft
silicone gasket
tensio shafts
O-ring (black)
for dirt protection
balance
Note
This manual does not describe the evaluation of the measuring data using the HYPROP-FIT
software. For this please find another manual:
http://www.ums-muc.de/static/Manual_HYPROP-FIT.pdf
Additional parts
in the scope of delivery
sensor unit
O-rings
tensio shafts
50 mm and 25 mm HYPROP
connecting cable
plastic caps silicone gasket and
nonwoven cloths
tensioLink®
T-piece
refilling attachment
for sensor unit saturation plate
5 | Scope of delivery
droplet syringe
tensio shaft auger tube for vacuum syringe
and attachment for sensor unit
vacuum syringe reservoir syringe
6 | Scope of delivery
auger guide
sample ring 250 ml
with plastic caps deionized water power device
HYPROP USB adapter
7 | Scope of delivery
8 | Content
Contents
At a glance – how it works ................................................................................... 2
Parts of the device and scope of delivery .......................................................... 3
Important information ......................................................................................... 10
Safety instructions ............................................................................................10
Intended use ....................................................................................................10
Warranty ...........................................................................................................10
HYPROP-VIEW software functions ....................................................................... 11
Key functions ....................................................................................................11
User support .....................................................................................................11
Show devices ...................................................................................................12
Device tree ......................................................................................................13
Initial operation .................................................................................................... 16
Software installation: HYPROP-VIEW and HYPROP-FIT .................................16
Hardware configuration ..................................................................................17
How to use the tube connections .................................................................18
General measuring procedure .......................................................................... 19
Preparing the measurement .............................................................................. 20
Saturating the soil sample ..............................................................................20
Filing the device ..............................................................................................22
using the Refill Unit (accessories) ..........................................................23
using syringes ...........................................................................................28
Offset recalibration ..........................................................................................41
Implementing the tensio shafts in the sensor unit ........................................43
Attaching the dirt protection .........................................................................46
Function check ................................................................................................47
Assembling the sensor unit and the soil sample ..........................................49
Connecting the sensor unit and the balance .............................................51
Preparing the balance ...................................................................................53
Adjusting............................................................................................................55
Default settings .................................................................................................57
Measuring ............................................................................................................ 58
Multi balance mode (one balance per sensor unit) ..................................58
Single balance mode (one balance for more sensor units) ......................59
Optimal measuring curve ................................................................................... 61
Notes on suboptimal measuring curves .......................................................63
Finishing a measurement .................................................................................... 64
Determining the dry weight ................................................................................ 67
Weighing the dry mass ....................................................................................68
Evaluating the measurement ............................................................................. 69
Trouble shooting .................................................................................................. 70
Cleaning and maintenance ............................................................................... 71
Cleaning the sensor unit .................................................................................71
Changing the O-rings in the sensor unit .......................................................72
Storage .............................................................................................................73
Additional accessories ....................................................................................... 74
Theory ................................................................................................................... 76
Preliminary note ...............................................................................................76
Measuring method ..........................................................................................77
Explanation of terms ........................................................................................78
Generating data points ..................................................................................80
Additional notes ..............................................................................................82
Addendum ........................................................................................................... 83
Typical measuring curves ...............................................................................83
Standard pF curves .........................................................................................90
Procedure of sampling for WP4 measurements
after a HYPROP measurement .......................................................................91
Units for soil water and matrix potentials ......................................................91
Facts and figures ................................................................................................. 93
Technical data ................................................................................................93
Literature cited ..................................................................................................... 94
9 | Content
Important information
10 | Important information
Electrical installations must meet the safety and EMC requirements of the
country in which the system is used. Damages caused by the user are not
covered by the warranty. HYPROP is a device to measure soil tensions as well
as soil water pressures and temperatures and is only intended for this parti-
cular use. Please keep the following notes in mind:
Note
Please do not touch the ceramic of the tensio shafts with bare fingers. Grease or soap
reduces the hydrophilic characteristics of the ceramic.
Note
Do not stick sharp objects into the holes of the sensor unit. You may damage the
pressure sensor.
Intended use
Safety instructions
Warranty
HYPROP®is a measuring system that is intended to be used for measuring the
water retention function and the hydraulic conductivity as a function of the
water tension or the water content of soil samples.
UMS offers a warranty for material and production defects for this device in
accordance with the locally applicable legal provisions, but for a minimum
of 12 months. The warranty does not cover damage caused by misuse, inex-
pert servicing or circumstances beyond our control. The warranty includes
replacement or repair and packing but excludes shipping expenses. Please
contact UMS or our representative before returning equipment. Place of ful-
fillment is Gmunder Str. 37, Munich, Germany.
Software functions
The key functions are:
•displaying the connected devices,
•displaying the measurement data
•filling assistant
•measurement configuration wizard
The wizard is explained in the respective chapter.
User support
Key functions
Example of user support: Help Function
Note
After starting the software the user support leads you through all software functions.
If you are an experienced user you may not like to use the wizard of the measuring
configuration and enter the data directly instead. This is possible too.
When you start the software and the help
function is activated notes of the next
step are displayed, e.g. here you are
asked to click on the “Show device” icon.
11 | Software functions
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2
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