Diagnostic fault messages
Table 8-3:
Message
Description
Action
Faults
tEmP LO
Temperature is too low.
Check wiring or sensor/process
temp. Check RTD.
tEmP HI
Temperature is too high.
Check wiring or sensor/process
temp. Check RTD.
rtd FAIL
The RTD sensor line fault limits have been ex-
ceeded for the sensor.
Check wiring or Check Pro-
gram/Temp menu setting to
verify the 100-3 or 100-4 sen-
sor type connected.
CPU FAIL
The CPU has failed during RAM or EEPROM
verification.
Recycle. If persistent, contact
the factory.
FACt FAIL
The transmitter has not been accurately fac-
tory calibrated.
Contact factory.
rOm FAIL
The PROM failed the check-sum test.
Contact factory.
CyCLE PoWr
A wrong value was detected during power-up. Recycle the power.
Warnings
InPut bwArn
The compensated conductivity limit of 9999
ms/cm is exceeded.
Verify the conductivity range
setting.
OvEr rAnGE
The current range setting has been exceeded. Verify the 4 and 20 mA settings
in the Program/output menu.
AdC Error
An analog to digital conversion error has oc-
curred. (This may come up normally while
readings are changing quickly).
Recycle the power.
Errors
CAl Err or
OFFSEt Err
A calibration error has occurred between the
standard and process.
Press
RESET
and repeat.
Check calibration standards
and unit configuration.
tSLOPE Err
The limit for T-2 in a two-point calibration has
been exceeded.
Press
RESET
and repeat the cali-
brate/temp. slope menu set-
ting.
-0- Err
Sensor zero limit has been exeeded.
Press
RESET
and repeat the cali-
brate/sensor menu setting.
WritE Err
An attempt to write on the EEPROM has
failed.
The jumper JP-1 on the CPU
board has been removed.
8.2.4
Quick troubleshooting guide
Table 9-8 identifies some of the more common symptoms and suggests actions to help
resolve a problem. In general, wiring is the most common cause.
Diagnostics and troubleshooting
84
Rosemount 5081
Summary of Contents for Rosemount5081
Page 4: ......
Page 10: ...Contents vi Rosemount 5081 ...
Page 12: ...Startup procedure 2 Rosemount 5081 ...
Page 23: ...Mounting 5081 on a pipe Figure 3 2 Installation Instruction Manual 13 ...
Page 24: ...Installation 14 Rosemount 5081 ...
Page 28: ...Wiring 18 Rosemount 5081 ...
Page 50: ...Programming basics 40 Rosemount 5081 ...
Page 130: ...Diagnostics and troubleshooting 120 Rosemount 5081 ...
Page 136: ...Digital communications 126 Rosemount 5081 ...
Page 140: ...Engineering drawings 130 Rosemount 5081 ...
Page 141: ...Engineering drawings Instruction Manual 131 ...
Page 142: ...Engineering drawings 132 Rosemount 5081 ...
Page 143: ...Engineering drawings Instruction Manual 133 ...
Page 144: ...Engineering drawings 134 Rosemount 5081 ...
Page 145: ...Engineering drawings Instruction Manual 135 ...
Page 146: ...Engineering drawings 136 Rosemount 5081 ...
Page 151: ...EU Declarations of Conformity 138 Rosemount 5081 ...