Comet U0110G, User Manual

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IE-LGR-UxxxxM-23
U6841M, U6841G
Datalogger with 3 inputs 0 - 20 mA
and 1 binary input
This model is used to measure up to three signals from
current loops (0 to 20) mA DC while allowing one binary
input to be monitored. The current inputs are passive
and are not galvanically isolated from one another.
This means that the connected sensors cannot be
connected to the current loop and the negative terminals
("-") are connected to each other. These facts must be
taken into consideration when designing the device into
the circuit. Incorrect connection may cause degradation
of the measured values. Standard outputs (4 to 20) mA
can also be measured with current inputs without any
problems.
Binary input serves to monitor voltage signals or signals
coming from a dry contact. The binary input changes are
registered immediately, irrespectively of the recording
interval setting. To safe record the input status, the signal
must be present for at least 1 s. Unlike the U0843M
(U0843G) model, this input can capture connected/
disconnected voltage status.
Input signals are connected to a pluggable terminal block.
The device has not a protection against the ingress of
water or dust. Do not use device at places where such
conditions can be expected. The maximum length of the
input wires should not exceed 30 m. It is recommended
to use shielded cables.
Connection:
The procedure for connecting the wires to the terminals
can be found in
Annex 4 .