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IMKO TRIME-FM, User Manual

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IMKO TRIME-FM User Manual Download Page 15

 

15 

5 

Basic Alignment with the Calibration Set 

5.1 

What is a basic alignment? 

The basic alignment serves to compensate the cable length and tolerances of the probe 
mechanics (thickness of the rod coating, rod length, etc.). After two measurements, one in dry 
and one in water saturated glass beads, the calibration data is calculated and stored in the 
TRIME probe’s connector. 

Every TRIME probe must be calibrated before it can supply proper measurement results. It is 
very important that the probe is calibrated with the device it belongs to. This calibration is 
regularly done by IMKO before the delivery of new probes. 

Please note that probes can only be used with the TRIME device they were calibrated with! 

5.1.1 

What are the benefits of the calibration set for the user? 

With the calibration set you can easily calibrate probes on your TRIME instrument by yourself. 
The calibration set offers the following advantages to you: 

1.  If defective probe rods must be changed you are able to make the required basic 

alignment by yourself. 

2.  You can calibrate probes purchased later with your TRIME-instrument by yourself. 

3.  If you have two or more instruments you can change the configuration of instruments 

and probes anytime by a new calibration of the appropriate probes to the specific 
instruments. 

You would have to send instruments and probes to us in any of the above cases where basic 
alignment is required if you have no calibration set. IMKO will charge calibration costs. Moreover 
you will save the forwarding charges and you will not have to interrupt your measuring campaign, 
if you calibrate by yourself. 

However, the calibration set allows only to make a basic alignment of the TRIME probes. You 
can not change the standard calibration for specific materials with it. For this purpose a 
measurement data set must be created with this specific material. In order to calculate the 
calibration data for this data set and to download it into the TRIME-probe you need the 
calibration program SMCAL.

Coax  a

c ble

Calibration
Connector

Probe 
connector

TRIME
Probe

dry glass

beads

water 

saturated

glass beads

Start

Summary of Contents for TRIME-FM

Page 1: ...TRIME FM User Manual ...

Page 2: ..._____________ 7 1 4 Mounting of Spare Rods with O ring Seals_______________________________________ 8 2 The TRIME T3 Tube Access Probe ______________________________________________ 9 2 1 Introduction_______________________________________________________________ 9 2 2 Measuring Field ___________________________________________________________ 9 2 3 Measuring experiences___________________________...

Page 3: ...with several probes it is recommended not to screw on the coupling ring in order to be easy on the thread The insertion of the probes must be carried out very carefully in order to prevent air pockets around the rods or the access tube if the tube probe is used Therefore the insertion of the rod probes with the preparation rods is only recommended if it is not possible to stick them in manually Re...

Page 4: ...arted by pressing the yellow button However it is not harmful for the battery to use the charging mode if the charging shall be carried out fast i e in up to 4 hours The discharging mode lasts between 6 and 7 hours The charger can remain connected as long as one likes The battery can not be damaged by it Please refer to the charger operating instructions on page 21 1 1 7 External Power Supply An e...

Page 5: ...g accuracy and range as well as the tolerable range of bulk electrical conductivity depends on the corresponding probe 1 2 5 6 7 3 4 Pin 1 Reserved Pin 2 Reserved Pin 3 Analog Out 0 1V Pin 4 Analog Out 0V Pin 5 SelfCal Pin 6 R T IMP Bus Pin 7 COM IMP Bus Coax cable RS2 32 V24 Probe connector Connector for analogue cable calibration plug battery charger AC Connector AC banana plugs Battery charger ...

Page 6: ...nsion 2 Rod Probe P2 Miniatur Probe P2D Rod diameter 3 5mm Different length 50 80 100mm Rod diameter 2 4mm 160 6 30 15 40 88 Rod diameter 6mm Rod diameter 6mm 160 80 40 63 50 80 100 40 14 20 20 65 32 3 Rod Probe P3S Rod diameter 3 5mm 20 20 30 3 Rod Probe P3 160 8 40 15 35 35 115 3 Rod Probe P3Z Triangular arrangement 160 100 40 63 ...

Page 7: ...ation Rods For the protection of the rod tips it is necessary to use the preparation rods for probe P2 P2Z P2G and P3 A defect and blank rod is sensitive against electrostatic charge and can destroy the electronic ...

Page 8: ...prepare probe body seals rods 2 put the seals into the borings 3 push the seals to the basis of the borings where the threads begin 4 put silicon grease to the threads of the rods new spare rod are greased at works 5 screw the rods into the probe body ...

Page 9: ...hows the electric field distribution of the probe and the approximate measuring volume equipotential lines effective measurement volume aluminum plates Figure 1 Electric field distribution of the TRIME probe and approximate measuring volume The elliptical measuring volume enables a higher representation to be achieved by several measurements rotating the probe after each measurement and calculatin...

Page 10: ...uger washing mud into the cavity around the tube Losses in accuracy must then be accepted and measurements immediately after installation are not recommended Problems can also arise in swelling and shrinking soils since cracks develop especially along the access tubes 2 3 Measuring experiences The new TRIME technique was thoroughly tested in the field and compared both to neutron probe measurement...

Page 11: ...hat bulk soil electrical conductivity is a combination of the pore water electrical conductivity and the surface conductivity of the soil matrix Due to the tortuous nature of the conductivity path in the soil soil type dependent the bulk soil conductivity is much lower than the electrical conductivity of the pore water and it is dependent on water content 2 4 Summary The TRIME tube probe is a prom...

Page 12: ...ribed auger equipment it is possible to set the access tubes directly into homogenous soils without pre boring In very stony soils it is not possible to use this method Therefore it could be possible to use an Edelman Auger for pre boring and closing the air gaps with mud Changes in soil structure and a delay time up to 4 weeks before it is possible to come to precise measurement values must then ...

Page 13: ... guide tube is not used for making the hole in the first instance because this could result in soil compaction around the hole which would lead to higher measurement values The access tube support pillar with three ground anchors avoids vibrations that would cause air gaps Then the clamp of the support pillar must be closed and the soil can be removed with the screw auger When the tube reach the s...

Page 14: ...ve guides Please note Should you use new T3 probes eight wave guiding plates instead of two in old GFK tubes we advice to carefully chamfer the inner top side of the GFK tube Thereby you avoid ripping off the spring mounted wave guides Please note With the T3 comes three aluminium rods which can be screwed together They can be used to orientate the T3 probe in the borehole Start TRIME FM3 or TRIME...

Page 15: ... be changed you are able to make the required basic alignment by yourself 2 You can calibrate probes purchased later with your TRIME instrument by yourself 3 If you have two or more instruments you can change the configuration of instruments and probes anytime by a new calibration of the appropriate probes to the specific instruments You would have to send instruments and probes to us in any of th...

Page 16: ...lignment procedure The basic alignment can be done with both the calibration connector only TRIME FM and the calibration program SMCAL please read the information about the basic alignment with SMCAL in the file README TXT in the subdirectory BASICCAL of the SMCAL disk Only the procedure with the calibration connector is described in the following Before starting the essential calibration connect ...

Page 17: ...IBRATION 1 dry glass beads Checking TDR Circuit Display shows 2nd BASIC CALIBRATION 1 dry glass beads Measuring Display shows 3rd BASIC CALIBRATION 2 sat glass beads Reference 43 7Vol 6 Put the P3 probe into your saturated glass beads Read the description of the TRIME FM user manual too 7 Press START button for starting the measurement Display shows 1st BASIC CALIBRATION 2 sat glass beads Checking...

Page 18: ... clipped to both ends of the probe cable They are important for an improved measurement accuracy tube probe rod probe snap here snap here snap here EMV EMI Ferrit Filter Analog cable RS232 cable ZCAT 2035 ZCAT 2035 EMV EMI Ferrit Filter ZCAT 1518 TRIME FM Start Measuring TRIME FM Version P2 Gm b H M I C R O M O D U LTE C H N I K ...

Page 19: ... O Ring Hülse mit Feder Shell with spring An den schwarz markierten Bereichen den Siliconkleber so dick auftragen daß Dichtring und Kabel wasserdicht verklebt sind At the black marked areas apply silicon glue so thick that the gasket and the cable are sticked together and are waterproofed Buchseneinsatz female insert Gewindering coupling ring In diesem Bereich einfetten In this area place a thin c...

Page 20: ...measurements or even destroy the equipment IMKO supplies special seals 2 All unused connectors have to be protected by blind covers IMKO supplies all equipment respectively all open connecting terminals protected by blind covers Additional ones can be obtained by IMKO 3 When installing the connectors special attention has to be paid to the connectors being threaded with care The threads have to be...

Page 21: ... over to the charging automatic switching over to trickle charge state indication through illuminated display LEDs Illuminated display red 1 the flashing of the red illuminated display can have different meanings 1 it signs the perfect contact of the battery packs during the test phase about 10 seconds 2 it signs that the battery pack is not connected properly with regard to the pole 3 it signs th...

Page 22: ...ter the charging procedure the charger switches automatically over to trickle charge green LED is flashing red LED is off The starting of the discharging procedure occurs by pressing about 2 seconds the button for discharging 3 However this discharging procedure should only take place after the test phase After discharging which can in individual cases last for several hours the charger automatica...

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