2-sensor input functionality / Dual sensor mode
52 TTF350
OI/TTF350-EN
Device
parameters
Description
DTM parameters
HMI LCD display
parameters
Effective range
Safety information
Sensor 1:
Line
resistance
Sensor
resistance
relevant for all
Pt, Ni, Cu
resistance
sensor types in
2-wire sensor
transmitter
connection type
<Device>
<Configuration>
<Sensor 1 / Line
Resistance>
<Device Device>
<Input Sensor 1> <Line
Resistance>
0 … max. 100
Ω
Check
safety
function
Sensor 1:
Reference
point
When using the
transmitter
reference point:
internally
relevant for all
thermocouples
except type B, if
thermo/
equalizing
conductor is
clamped to the
transmitter
without using the
transmitter
reference point:
without type B,
externally fixed
transfer of
thermo/
equalizing
conductor via
copper material
at constant
thermostat
temperature
<Device>
<Configuration>
<Sensor 1 /
Reference Point>
<Device Device>
<Input Sensor 1>
<Reference Point>
internal
without
externally - fixed
Check safety
function
Sensor 1:
Reference
point ext.
Relevant for
external
reference point,
information on
constant
external
reference point
temperature
<Device>
<Configuration>
<Sensor 1 /
Reference
Point Temp.>
<Device Device>
<Input Sensor 1>
<Reference Point Ext.>
-50 ...100°C
Check safety
function
Sensor 2:
Sensor model
Select sensor
type:
<Device>
<Configuration>
<Sensor 2 / Sensor
Type>
<Device Setup>
<Input Sensor 2>
<Sensor Type>
Like sensor 1
Safety function
relevant and
requires check of
following
input/output
assignments:
Sensor 2
Differential (S1-S2)
Differential (S1-S2)
Mean
Redundancy
Elec. reading 2
Sensor 2:
Type of
connection
Sensor
connection type
relevant for all
Pt, Ni, Cu
resistance
sensor types
<Device>
<Configuration>
<Sensor 2 /
Connection>
<Device Setup>
<Input Sensor 2>
<Connection Type>
Like sensor 1
Safety function
relevant and
requires check of
following
input/output
assignments:
Sensor 2
Differential (S1-S2)
Differential (S2-S1)
Mean
Redundancy
Elec. reading 2
