Dry Contact Connection
The conn
ection to the digital input using a Dry Contact-type sensor is made at the terminals
according
to the image shown.
14.2.3.4
ANALOG INPUTS
Pt100 Connection
The conn
ection to the channels is made at the terminals according to the following image. The
three-wire connection from the Pt100 sensor element to the
LogBox 3G
input e
nsures
cancellati
on of the error caused by wire resistance. The three wires should have the same
gauge an
d length.
For two-wire Pt100, connect the RTD to terminals 6+7 and link 7 to 8.
Ther
mocouple Connection
The connection to the channels is made at the terminals according to the following imag
e. The
right conn
ection polarity must be followed.
Cables us
ed for thermocouple connections must have the same thermoelectric characteristics
as the thermocouple used (compensation cable or extension cable) and must be connected
with the right polarity.
Failure to use compensation cables or their use with incorrect polarity can lead to
major
measurement errors.
Voltage Connection (mV)
The connection to the channels is made at the terminals according to the following ima
ge. The
right conn
ection polarity must be followed.
Current Connection (mA)
The connection to the channels is made at the terminals according to the following imag
e. The
right conn
ection polarity must be followed.
Voltage Connection (V)
The conne
ction to the channels is made at the terminals according to the following image. The
right connection polarity must be followed.
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