11 Operation using PROFIBUS
®
PA TMT84
62 Endress + Hauser
Advanced setup
Menu item Parameter
"Setup"
Submenu
"Advanced setup"
Name
Parame-
ter access
Description
HW write protection read Displays the status of hardware write protection.
Display:
–0 - Off
write protection disabled, parameters can be
changed.
–1 - On
write protection enabled, parameters can-
not be changed.
Factory settings:
0
Ambient alarm read/
write
Status message in the event of the operating temperature
of the transmitter being undershot or overshot
< -40°C (-40°F) or > +85°C (185°F):
• 0 Maintenance: Int. temperature overshoot/under-
shoot results in warning.
• 1 - Failure: Int. temperature overshoot/undershoot
results in alarm.
Factory settings:
0 - Maintenance
Sensor drift monito-
ring
read/
write
Deviation between SV1 and SV2 is identified as an error
(Failure) or as need for maintenance (Maintenance):
• 1- FAILURE: (sensor deviation > Sensor drift alert
value n)
Failure. Sensor drift is displayed as error
• 0 - Warning: (sensor deviation > Sensor drift alert
value n)
Warning. Sensor drift is displayed as
warning
Factory settings:
Warning
Sensor drift alert
value n
read/
write
Configuration of the max. permitted measured value devi-
ation between sensor 1 and sensor 2. This value is rele-
vant if "PV =ABS(SV1-SV2) if PV< drift value" was
selected for the measuring mode.
Permitted deviation from 0.1 to 999.
Factory settings:
999
Corrosion detection
n
read/
write
• 0 - OFF: Corrosion detection off
• 1 - ON: Corrosion detection on
Factory settings:
0 - OFF
! Note!
Only possible for RTD 4-wire connection and thermocou-
ples (TC).
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