11 Operation using PROFIBUS
®
PA TMT84
72 Endress + Hauser
n: Number of the Transducer Block (1-2) or the sensor input (1 or 2)
Offset n read/
write
Offset for Primary Value 1
The following values are permitted:
• -10 to +10 for Celsius, Kelvin, mV and Ohm
• -18 to +18 for Fahrenheit, Rankine
Factory settings:
0.0
(only visible in
online mode)
Lower sensor range
n
read Displays the lower, physical sensor range.
(only visible in
online mode)
Upper sensor range
n
read Displays the upper, physical sensor range.
Threshold value n read/
write
Value for switching in PV mode for sensor switching.
Entry in the range of -270°C to 2200°C (-454°F to
3992°F).
Reference Junction
Type n
read/
write
Configuration of reference junction measurement for
temperature compensation in thermocouples:
• 0 - no reference: no temperature compensation is used.
• 1 - internally measured reference junction: internal ref-
erence junction temperature is used for temperature
compensation
• 2 - external fixed value: "Ext. Reference Junction Tem-
perature" is used for temperature compensation.
Factory settings:
1 - Internally measured reference junction
Ext. Reference
Junction Tempera-
ture n
read/
write
Value for temperature compensation (see parameter:
"Reference Junction").
Factory settings:
0.0
Sensor drift
monitoring
read/
write
Deviation between SV1 and SV2 is identified as an error
(Failure) or as need for maintenance (Warning):
• 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
deviation between sensor 1 and sensor 2. This value is
relevant 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).
Sensor 1 / Sensor 2
Menu item Parameter
"Sensor"
Submenu
"Sensor 1" or "Sen-
sor 2"
Name
Parame-
ter access
Description
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