West Control Solutions TB 45 Temperature Monitor - Manual (Page 29)

Parameter O.Src defines the signal source of the output value.
Example:
O.Src = 3 signal source for Out.3 is
the process value
Scaling of the output range is done via parameters Out.0 and Out.1. The values are specified in units of the physi-
cal quantity.
Out.0 = -1999...9999 scaling Out.3
for 0/4mA or 0/2V
Out.1 = -1999...9999 scaling Out.3
for 20mA or 10V
Example: output of the full input range of thermocouple type J (-100 … 1200 °C)
Out.0 = -100
Out.1 = 1200
Example: output of a limited input range, e.g. 60.5 … 63.7 °C)
Out.0 = 60.5
Out.1 = 63.7
+
Please, note: the smaller the span, the higher the effect of input variations and resolution.
g
Using current and voltage output in parallel is possible only in galvanically isolated circuits.
g
Configuration O.tYP = 2 (4 … 20mA) or 4 (2...10V) means only allocation of the reference value (4 mA or 2V)
for scaling of output configuration Out.0. Therefore, output of smaller values is also possible rather than
output limiting by reference value 4mA / 2V.
g
Configuration O.tYP = 0/1 (0/4...20mA) or 2/3 (0/2...10V) determines, which output should be used as a
calibrated reference output.
6.7.2 Logic output (optional)
Analog output OUT3 can be used also as a logic output ( O.typ = 0). This output can be used e.g. for pre-alarms.
Functions
TB 45 Analog output configuration 29
phys.
size
mA / V phys. size
Out.1
Out.0
0/4mA
0/2V
20mA
10V