01428 685902 Tracklink

Non-Intrusive IBJ Tester (Current Analyser)

Ref: URLT/014183

£442.80 excl. VAT £531.36 inc. VAT
Only UK orders accepted
When placing the meter on to the rail ensure the meter is placed in the same direction athe rail and NOTplaced across the rail. This will mean that the top of thmeteis always facing towards blocjoint.
Testing IBJ's
Place the meter on  top of  the railensuring  the top of  the meter is 15mm from  the ''T' Piece.
Use the following table to decide if  your  block joint is functioning correctly.
0 - 2 Bars IBJ: Good
3 - 5 Bars !BJ: Partial Short
6+    Bars IBJ: Defective
Be aware of  section rail jumpers running  past the block joints and giving false readings.If a jumper cabte runs past the bloclk joint and a high  reading is observed, try moving  the cable away from  the  block joint and  see if the reading decreases.
If  the jumper cable cannot be moved and the reading is:
1.       1-3 bars: ignore the reading and consider the lBJ as good.
2.       Above 3 bars: Consider the IBJ as defective or partially shorting.
If you find this condition. arrange for  the cable to be re-run away from the block joint.
Looking for earths or short circuits
1.       Take a measurement both at the start and end of   the failing track circuit 200mm from the  track connections, this                  
           measurement  should  be made towards the middle of the failing track circuit and not  towards the block joint.
2.       If   the readings vary from the "T" end of the track to the ''TR" end of the track
                          by more than 2 bars, then it indicates an earth or  short circuit.
3.       Keep monitoring the   bars on the current  analyser  along the track until you  find the position that the reading changes.
          This identifies the position of the earth or short circuit.
4.       Probable causes are: a) trainstops shorting to the section rail. b) trainstop earth bonds touching the section rail, c) point insulation shorting,
           or d) the section rail shorting to the tunnel segment via metal objects, rail keys or  defective rail chairs.
5.        lf  you find  that  the meter gradually decreases as you move along the track and there is not one specific point where the meter reading
           changes, likely causes could be wet beds or flooding of the track.