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PROTECTOR® IV Gauge Face Installation, Operation & Maintenance Manual
Train wheels are not being
counted by DCB (pass a steel
object over sensor to test, LED on
DCB should flash yellow)
Sensor is defective
Replace sensor
Sensor wiring at DCB connection
is broken or incorrect
Verify wiring connections
according to wiring diagram and
replace if necessary
Train wheels are only counted
sporadically by DCB
Sensor height is incorrect
Adjust sensor height using shims
Rail has become magnetized
Relocate sensor
Sensor or bracket has become
loose
Tighten bolts
Loose cable connection
Push connectors in fully, place
yellow housing over connection
LCD does not turn green when
On/Off is pressed
Defective DCB
Replace DCB
Battery voltage is too low
Charge battery
Defective Battery
Replace battery
Control buttons do not change
readings in LCD display
Defective DCB
Replace DCB
No readout
Temperature is below -20°C
Read display once temperature is
above -20°C
Defective DCB
Replace DCB
Unclear LCD
High level of electrical noise
Verify grounding of tank
Defective DCB
Replace DCB
Charge Controller
The PROTECTOR IV’s charge controller has lights indicating battery conditions as well as charging condition.
These will help to determine causes of electrical problems; this applies to DC voltage units only.
Symptom
Possible Causes
Possible Solutions
Indicator lights do not turn on
No battery power
Check battery and charge
controller connections
Defective battery
Replace battery
Too dark
A solar panel will only work during
daylight hours