Troubleshooting - AgraTronix MT-PRO+ Manual Del Operador

Troubleshooting

SYMPTOM A: Unit does not power up or loses power
occasionally (or backlighting does not operate.)
SOLUTION 1: Press ON-OFF button for shorter time.
Do NOT hold button down.
SOLUTION 2: Check batteries for 0% or higher.
Replace as necessary.
SOLUTION 3: Battery contacts may be making poor
contact. Remove batteries and pull metal contacts (A)
up from bottom of compartment and above height of
plastic knob using needle-nose pliers.
SYMPTOM B: Unit is inaccurate.
SOLUTION 1: Temperature of the grain and unit may be more than 20˚F (11˚C)
different. Follow preheat procedure (See page 10-4).
SOLUTION 2: If grain is at an extreme temperature, let grain settle to reach room
temperature. Retest grain.
SOLUTION 3: Grain and/or test cell may have developed surface moisture from
rapid change in temperature of the grain sample. Allow grain and tester to stabi-
lize near room temperature. Inspect for visible moisture on grain and inside test
cell. Dry the test cell with a soft cloth or a blow dryer if necessary. Retest grain.
(See page 10-5).
SOLUTION 4: If the tester displays SYSTEM BATTERY LOW, the test results
may be inaccurate. Replace battery.
SOLUTION 5: Unit may need to be re-calibrated by factory. Return to your John
Deere Dealer for repair or replacement.
SYMPTOM C: Unit reads MOISTURE BELOW LIMIT or MOISTURE ABOVE LIMIT.
SOLUTION 1: Grain may be too wet or dry to test. Check moisture limit guide-
lines on page 10-6 of Operating Instructions. NOTE: Limits shown on page 10-6
are only guidelines.
SYMPTOM D: Unit reads ERROR (---).
SOLUTION 1: Electronic failure. Return to your Dealer for repair or replacement
or contact manufacturer (See page 25-1).
15-1