DYNISCO UPR800 Series Instruction Manual
Page | 20
6.0 MOUNTING AND WIRING
Please refer to figures for cutout dimensions and clearance requirements. Locate the two
mounting brackets packed with the instrument and have them available.
1. Slide the instrument case into the cutout, being sure that it is right-side-up (terminal 1
at the top). Attach the panel mounting hardware at diagonally opposite sides of the top
and bottom of the case, tightening the threaded rod until the case is secure against
the panel.
2. Refer to the model number of the instrument to determine the hardware and options
included as part of your unit. Please refer to Section 6.1 for the terminal assignments.
Terminals are accessed by opening the terminal covers from the side with the “OPEN”
legend.
NOTE 1:
The UPR800 is equipped with screw terminals, and no connectors are
necessary when wiring the unit
NOTE 2:
When wiring the alarms, wire to the Common and NO (normally open) terminals
to maintain a fail-safe configuration.
Fail-safe denotes a situation where the alarms relay coils are activated in a no-alarm
situation. As the relay coil is energized, terminals that are normally open are closed and
can cause completion of a circuit when used as an interlock. Should the alarm threshold
be exceeded, OR should power be lost to the instrument the contacts will open, and the
circuit will be broken. If the alarm is a latching alarm, it will require an external reset signal
to be activated again.
If the alarm is used to provide a contact to an alarm device (light, horn buzzer, etc., when
the threshold is exceeded, wiring should be to the Common and NC (normally closed)
terminals. Activation of the relay coil will cause the contacts to open in a non-alarm
situation, and to close if the threshold is exceeded, or power is interrupted to the
instrument. If the alarm is a latching alarm, it will require an external reset signal to be
activated again.
NOTE 3: Relay Outputs
The contact rating of all outputs is equal to 2A/240 Vac on resistive load.
•
To avoid electrical shock, connect power line at the end of the wiring procedure.
•
For power connections use No 16AWG or larger wires rated for at least 75°C.
•
Use copper conductors only.
NOTE 4: Power Line
Before connecting the instrument to the power line, make sure that the line voltage
corresponds to the description on the identification label.
