MONARCH INSTRUMENT ACT-3X, Руководство пользователя и справочное руководство

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Figure 3 Sensor Connections
2.3.3
Analog Output
The Analog Output is an option. The Output option is marked on the back of the unit to the right of the connector –
refer to
Figure 2 .
2.3.3.1 Current Output
The current output is 4 to 20 mA. This output is a current source and has a 12 Volt
dc internal compliance voltage. (Optional 24 Vdc may be ordered).
Typical connection is as follows: (See Figure 4.)
Connect the Positive side of the load to the OUT terminal marked ―+‖ and the other
side of the load to the terminal marked ―-―. With the internal 12 Vdc compliance
voltage the maximum load for the current loop is
500 Ohms . If the optional 24 Vdc
compliance option is ordered the maximum load will be 1000 Ohms .
2.3.3.2 Voltage Output
The analog output is 0 to 5 Vdc @ 5mA.
Connect the Positive side of the load to the OUT terminal marked ―+‖ and the return
side of the load to the terminal marked ―-‖. (See Figure 4.)
The output full scale and zero scale values are programmed via the front panel or remotely through the communication
port.
2.3.4
Auxiliary Input (AUX- Channel 2)
The Auxiliary Input is also referred to as Channel 2 (CH-2) and will accept a TTL input or any signal up
to 12Vdc. It has a weak pull up internally and can be used with a set of potential free contacts. The AUX
input is programmed via the front panel or remotely via the communication port. Refer to
Figure 2 and
figure shown right – the AUX input is connected to the input marked AUX (+) and COM (-).
2.3.5
Pulse Output
The Pulse Output provides a pulse out for each pulse in. It is a TTL pulse switching b5V and
ground. Refer to
Figure 2 and figure shown right - the connection is to the PO (+) terminal and the COM
(-) terminal.
2.3.6
Alarm Relay Outputs
The Alarm Relay Outputs are potential free Form C contacts (Change Over) capable of
carrying 1A at 250Vac or 30Vdc.
The contacts are marked NCx where NC is the Normally Closed Contact, x = 1 or 2
depending on which relay you are using. CM is the Common and NO is the Normally Open Contact.
CAUTION: Relay contacts may be wired to external high voltage potentials – ensure all power to the contacts is off
before attempting any wiring.
CAUTION: During programming of the device, relay contacts may make or drop out intermittently.
Figure 4 Analog
Output Connections
+ OUT -
NOTE: Sensor shields may be attached to
input common (COM) if a ground point is
not available.