User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
7.9.5.7.
RTD measurement modules
RT
modules are equipped in four or six RTD inputs, see
Appendices 8.7. RT4 , RT6 –
. These inputs are used for temperature measurement
using RTD type temperature sensors (by two, three and four wire method) or for resistance
measurement in ranges up to 3kΩ. RT modules cooperates with many kind of resistance
thermometers and thanks to this, there is no need to change the module when sensor has
been changed, user only needs to change settings in module.
RT modules parameters are:
–
Name
– each built-in input already has a name given by the device and user cannot
change it, for description of
Name
–
Unit
– parameter which displays
°C
or
Ω
, depending on
Mode
parameter settings,
–
Mode
– defines which sensor is used for measurement, or what is the resistance
measurement range and what is the method of these measurements (three wired
method is assigned to separated option in Mode parameter e.g. Pt100 3-wire, while
two and four wired method is assigned to different option in Mode parameter e.g.
Pt100),
–
Low limit
– defines measurement level bellow which in logical channel will be
displayed
Lo
state; for each sensor this limitation is different, but it can be changed
in certain limits,
–
High limit
– defines measurement level above which in logical channel will be
displayed
Hi
state; for each sensor this limitation is different, but it can be changed in
certain limits,
7.9.5.8.
Isolated universal inputs modules
UN
modules are equipped in three or five universal inputs and one input for connectors
temperature measurement, see
Appendices 8.8. UN3, UN5 – OPTOISOLATED UNIVERSAL
. It is most advanced available module. With its help user can make many
different kind of measurements in each channel. This module can measure: voltage, current,
resistance, temperature using resistance sensors or thermocouples.
UN modules parameters are:
–
Name
– each built-in input already has a name given by the device and user cannot
change it, for description of
Name
–
Unit
– parameter which displays
mA
,
V
,
°C, Ω
or
mV
, depending on
Mode
parameter settings,
–
Mode
– allows to set input type used to measurements,
–
Low limit
– defines measurement level bellow which in logical channel will be
displayed
Lo
state,
–
High limit
– defines measurement level above which in logical channel will be
displayed
Hi
state,
–
Wire compensation
– menu which allows to compensate measurement errors,
which can be caused by wrong sensor readings,
•
Compensation mode
– allows to choose parameter, which will be used in
compensation process,
◦
disable
– compensation is not active,
◦
manual
– allows to compensate sensor constant offset,
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