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MODEL 5081-T SECTION 10.0
DIAGNOSIS AND TROUBLESHOOTING
10.3 DIAGNOSTIC MESSAGES
The Model 5081-T transmitter’s diagnostics constantly monitor the conductivity loop for possible problems. If an opera-
tional problem is encountered, check the display for a fault or error message. These are displayed in the
Temperature/Current output segment of the display. Note the message and refer to Table 10-2 for a description of possi-
ble problems that may have triggered the diagnostic message.
Message Description Action
Faults
U1
7
:![9 Temperature is too low. Check wiring or sensor/process temp.
Check RTD.
U1
7
:!45 Temperature is too high. Check wiring or sensor/process temp.
Check RTD.
;UG!2-5[ The RTD sense line fault limits have been exceeded Check wiring or Check Program/Temp
for the sensor. menu setting to verify the 100-3 or
100-4 sensor type connected.
/:>!2-5[ The CPU has failed during RAM or EEPROM Recycle. If persistent contact the factory.
verification.
2-/U!2-5[ The transmitter has not been accurately factory calibrated. Contact factory.
S9
7
2-5[ The PROM failed the check-sum test. Contact factory.
/A/[1:
@6
S A wrong value was detected during power-up. Recycle the power.
Warnings
5P:VU!
@6
-SP The compensated conductivity limit of 9999 ms/cm is Verify the conductivity range setting.
exceeded.
9WHS!S-PJ1 The current range setting has been exceeded. Verify the 4 and 20 mA settings in the
Program/output menu.
-G/!
HSSQS
An analog to digital conversion error has occurred. Recycle the power.
(This may come up normally while readings are
changing quickly)
Errors
/-[!1SS!or A calibration error has occurred between the standard Press RESET and repeat.
9IITHU!1SS and process. Check calibration standards and unit
configuration.
U<[9:1!1SS The limit for T-2 in a two point calibration has been Press RESET and repeat the
exceeded. calibrate/temp. slope menu setting.
\"\!1SS Sensor Zero limit has been exceeded Press RESET and repeat the cali-
brate/sensor menu setting.
@M;5=1 1SS An attempt to the write on the EEPROM has failed. The jumper JP-1 on the CPU board
has been removed.
TABLE 10-2. Diagnostic Fault Messages.