
301UM0031_01
TD136 Enhanced Vehicle Detector User Manual
Page: 29 of 29
Are there any other cables close to this feeder cable? If so please give details:
_________________________________________________________________________
_______________________________________________________________________
_________________________________________________________________________
FEEDER CABLE AND LOOP DETAILS
DC resistance of Feeder plus Loop: __________ ohms
Inductance of Feeder plus Loop: __________ Micro Henries
Loop and feeder resistance to earth (with detector unplugged) using a 500V Megger: ___________ Ohms
(should be greater than 10 Mega Ohms)
READINGS FROM DU100 DIAGNOSTICS UNIT
Frequency: ______________ kHz
Loop Frequency Drift: __________ %
If you do not have a DU100 when the detector tunes how many times does the green LED flash____________
Inductance Change for each type of vehicle that is encountered on this site.
(Use the maximum sensitivity reading from
the DU100 and reset the detector between each reading)
:
Bicycle: __________ %
∆
L/L
Motorbike: __________ %
∆
L/L
Car: __________ %
∆
L/L
Articulated truck: __________ %
∆
L/L
Four wheel drive: __________ %
∆
L/L
5 Ton Tip Truck: __________ %
∆
L/L
Forklift: __________ %
∆
L/L
Other specify: type _________________________ Change __________ %
∆
L/L
Sensitivity Min: _________ %
∆
L/L Max: ___________ %
∆
L/L
Status
(Undetect, Detect, Open circuit, Short circuit or Indeterminate)
:________________________________
Time since last retune: ___________ days _____________ hours
Reason for Retune
(Reset: manual or power failure, Short circuit, Open circuit, Indeterminate, Inductance change of greater than 15
%
∆
L/L (typical)
: _________________________________________________________________
Crosstalk
(Pass / Fail)
: _______________
If fail actual frequencies of the two problem detector loops
Frequency 1:___________kHz
Frequency 2:______________kHz