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Users’ Manual 

EAN-26MH Horizontal inclinometer system  

  

  

 

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7  CALIBRATION CHECK JIG OF INCLINOMETER PROBE 

The calibration check jig is used to ensure that the original factory calibration is unchanged. Any drift in 
inclinometer probe calibration at a later date will be detected by the calibration jig. The calibration jig 
should be fixed to a vertical wall so that at 0

°

 position the calibration jig fixed plate is aligned as much 

horizontal as possible. Before using the probe for taking readings the probe should be inserted in the 
calibration jig and probe readings for 0

°

 and + and - 30

°

 positions are noted down. If any drift is detected 

in the probe readings at a later date, it indicates that the probe needs calibration. It should be noted that 
the 0

°

 and 

±

 30

°

 positions are approximate and should not be taken as calibration points. 

 

Figure 16  shows the calibration jig components. The mounting brackets should be attached to the fixed 
plate of the calibration jig using the supplied set of fasteners. The calibration jig should be fixed to a 
vertical wall surface by fixing the mounting brackets to the wall using any commercially available 
brick/concrete fasteners with 10 mm stud diameter. While fixing ensure that the fixed plate of the 
calibration jig is lengthwise aligned as much horizontal as possible. 

 

Figure 17 shows the index pin and the three reference holes as seen from the back of the calibration jig. 
After installation this side of the jig faces the wall. The index pin is attached to the calibration jig by a 
length of chain. During calibration check the inclinometer guide assembly is rotated till the index pin goes 
through any one of the three holes seen in the figure and the locating hole provided in the guide 
assembly. 
The middle hole corresponds to 0

°

 position and the two holes at either side correspond to + and – 30

°

 

positions. It is immaterial which hole is consve as only the probe readings corresponding to the 
three holes positions are to be noted for future reference. 

 

Figure 16 – Calibration jig components 

Figure 17 – Index pin and reference holes 

Содержание EAN-26MH

Страница 1: ...ough ingenuity USERS MANUAL ENCARDIO RITE ELECTRONICS PVT LTD A 7 Industrial Estate Talkatora Road Lucknow UP 226011 India P 91 522 2661039 42 Email geotech encardio com www encardio com International...

Страница 2: ...5 2 5 Inclinometer probe model EAN 26MH 2 1 5 2 6 Inclinometer datalogger model EDI 53 INS Error Bookmark not defined 2 7 Dummy probe model EAN 26MH 2 2 7 2 8 Calibration check jig model EAN 26MH 2 3...

Страница 3: ...s a readout device The recommended phone types have a large pixel with colour display and a capacitive touch screen that makes it easy to read the display while logging bore holes using Encardio rite...

Страница 4: ...ng this instruction manual However the best of instruction manuals cannot provide for each and every condition in the field which may affect performance of the sensor Also blindly following the instru...

Страница 5: ...inclinometer cable reel end The protective end cap incorporates a threaded adaptor 2 4 Protective cap model EAN 26MH 1 5 End cap for pull cable reel end The protective end cap incorporates a removabl...

Страница 6: ...investigate any anomaly immediately at site 2 6 1 Mobile phone datalogger minimum requirements A mobile phone that is intended for use as readout unit for the digital inclinometer should have the foll...

Страница 7: ...ll inclinometer probe from the other end The pulling cable has one end with a threaded connector which is used to connect dummy or inclinometer probe or to an end cap which is used as a cover for ABS...

Страница 8: ...Installation accessories Model EAN 26MH 1 6 pop rivets for ABS tubing Model EAN 26MH 1 7 pop rivet gun Model EAN 26MH 1 8 power drill machine with 3 2 mm drill bit Model EAN 26MH 1 9 sealing accessori...

Страница 9: ...tc to make the alignment horizontal wherever required 2 5 Mark the outside of each casing as the top groove and start assembling 2 6 Pass the threaded adaptor of pull cable reel through the first acce...

Страница 10: ...mastic tape has to be applied should be clean Proper sealing by mastic tape is necessary to prevent intrusion of concrete sap inside the casing One round of mastic tape with a least 10 mm of overlap...

Страница 11: ...nd The loop of the pull cable is then guided over the end of the pin and the pin is screwed back to the cap to anchor the pull cable Figure 9 shows how the loop of the pull cable at the cable reel end...

Страница 12: ...casing alignment CAUTION Ensure that the orientation of major set of groove remains perpendicular to the base slab right from the first casing laid to the last one at the other end of the alignment i...

Страница 13: ...the required length 2 26 If installed in the trench backfill the remainder of the horizontal borehole with finely graded material or select fill Compact by hand 2 27 Mark inclinometer identifications...

Страница 14: ...Manual EAN 26MH Horizontal inclinometer system Page 14 4 PREPARATION FOR AND OBTAINING READINGS For detailed instructions refer to section 6 section 7 of Digital Inclinometer operation manual WI 6002...

Страница 15: ...nvention strictly Mark casing groove orientation with a permanent ink marker pen on outside of casing and inside of lockable cover While inserting probe into casing the fixed wheels of the probe are k...

Страница 16: ...foreground Figure 14 5 3 At pulling end remove the pull cable loop from the protective cap Unscrew the removable pin of the protective cap and take out the loop of the pull cable from the end of the p...

Страница 17: ...pring loaded wheel pointing in direction marked A Orient far end wheel of probe in direction A as marked on casing grooves and insert it into access tube up to first mark on the cable Pull probe along...

Страница 18: ...alogger in the case 5 21 Rewind cable onto the cable reel clean it and fix the connectors in place 5 22 Replace the two protective end caps and plug on the ends of casing and lock it In case any addit...

Страница 19: ...e of the calibration jig using the supplied set of fasteners The calibration jig should be fixed to a vertical wall surface by fixing the mounting brackets to the wall using any commercially available...

Страница 20: ...eter probe at one end The anchoring screw S shown alongside is screwed to the retainer cap from outside the inclinometer guide to anchor the inclinometer probe inside the calibration check jig Figure...

Страница 21: ...a spray cleaner suitable for electronics that will not damage the outer cable covering or panel finish Replace probe wheels and axles if they become wobbly or sticky Constantly check conditions of O...

Страница 22: ...gnored or overlooked the most reliable of instruments and data obtained from them will be rendered useless This method statement does not provide for each and every condition in the field that may aff...

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