Troubleshooting
54
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 con-
tact. 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 11˚C dierent.
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.
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.
SYMPTOM C: Unit reads MOISTURE BELOW LIMIT or MOISTURE ABOVE LIMIT.
SOLUTION 1: Grain may be too wet or dry to test.
SYMPTOM D: Unit reads ERROR (---).
SOLUTION 1: Electronic failure. Return to your Dealer for repair or replacement or
contact manufacturer.
ERROR MESSAGES
Symbol Definition
ERROR (---) Tester is in need of service
NOTE: Contact manufacturer if an ERROR message occurs.
CLEANING THE TESTER
Remove cap and wipe out inside of the tester with a dry paper towel.
NOTE: Grain may become lodged in threads of cap and should be removed with a
small blade screwdriver.
MT PRO PLUS manual_short version_SE_Agratronix.indd 55
2.4.2015 16:21:40
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