Hardy HI 2151/30WC Single-Scale Controller - Manual (Page 146)

HI 2151/30WC MANUAL
8-26
DISPLAY TEST FAILURE SOLUTIONS
RAMTST Ram Test - Writes to each location None
in RAM & reads back and verifies data.
Test is non-destructive.
PASSED or Indicates whether RAM test passed 1. With most RAM failures
system will not operate.
FAILED failed. 1. Check that EPROM (U13)
on main board is seated.
2. Contact Hardy
Instruments for assistance.
OE OE Two hex numbers displayed; right one Discrepancy between two
(example) is actual checksum, left one is numbers indicates EPROM
calculated from test. The two numbers must faulty.
match. For each revision to EPROM
numbers will be different.
PASSED or If the two numbers matched, test will If failed, replace EPROM.
FAILED pass; otherwise fail is indicated. It is (If this doesn't eliminate
possible for EPROM to loose one or more the problem, there could be a
bits & still operate.
BUS problem.)
SLOT 1 Indicates next display is for slot 1.
NONE or Indicates which type of option card is 1. Check connector for
OPTION installed in slot 1, if any. proper mating.
2. Try card in another slot.
SLOT 2 Indicates next display is for slot 2. 1. Check connector for
NONE or Indicates which type of option card is proper mating.
OPTION installed in slot 2, if any. 2. Try card in other slot.
3. Swap with spare option card.
CALTYP How instrument was calibrated None
NOTE: One of the next three messages will be displayed, depending on the type of calibration
that was performed
C2 CAL C2TM Second Generation Calibration None
H CAL Hardware Calibration None
S CAL Software Calibration None
UNITS Indicates next parameter will be units None
of measure.