Moore Industries RIY, Руководство пользователя

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RIY
18 The Interface Solution Experts
Operation
Operating the RIY is limited to viewing the LCD for
input values, zero or span reading, or problem codes;
and performing quick ranging using the push buttons.
Units that are not equipped with an LCD have no
definitive operating procedures.
The LCD is the only visual indicator on the RIY;
without it, the user has no on-the-spot, visual indica-
tion as to the settings or operational status of the RIY.
When a non-LCD unit is calibrated with standard
ranging methods, it can be reliably installed in a
process loop, but it can not be quick ranged and must
be removed from the loop for subsequent calibrations.
Problem
Failed RAM test on power up
Failed ROM checksum on power up
Failed EEPROM checksum on power up
EEPROM did not write properly
EEPROM RTD table is bad
Lead # 1 or 4 is open (2-wire sensor)
Lead #4 is open
Lead #3 is open
Lead #2 is open
Lead #1 is open
RTD/Element #1 is open
RTD/Element #2 is open
RTD/Element #3 is open
Code
P1
P2
P3
P4
P5
P6
(or
EL1
)
P7
or
L4
P8
or
L3
P9
or
L2
P10
or
L1
P11
or
EL1
P12
or
EL2
P13
or
EL3
Table 4.
Self-diagnostic Problem Codes
Remedy
Cycle dc power; if problem persists,
return unit per instructions on the
back cover of this manual
If power is lost during calibration,
repeat calibration; otherwise, cycle
dc power; if problem persists,
return unit per instructions on the
back cover of this manual
Cycle dc power; if problem persists,
return unit per instructions on the
back cover of this manual
Repair sensor or wiring
The LCD
The LCD also displays problem codes resulting from
the RIY’s self-diagnostics. Codes indicate malfunc-
tions or discrepancies detected by the RIY’s micro-
processor at power-up, during calibration, or in the
operate mode. Table 4 contains these codes, the
problem indicated, and the remedy for each.
During normal operation, the LCD typically displays
the applied input value. As the input changes, the
read-out of the LCD changes accordingly.
The LCD can also display the zero and span settings
during normal operation when the appropriate front
panel push button is pressed.