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Description
The Ultra Slim Pak G168 is a
DIN rail mount, DC powered,
AC voltage or current input
limit alarm with dual setpoints
and two contact closure outputs.
The field configurable input
and alarm functions offer flexible
setpoint capability. Input voltage
spans from 100mV to 250VAC and
input current spans from 10mA
to 100mA AC can be field configured.
For current input spans of 1
to 5 Amps a 0.1 Ohm (5W) shunt
resistor (Model# C006) is available.
The
G168 is configurable as a single
or dual setpoint alarm, with
HI or LO trips and failsafe
or non-failsafe operation. Also
included are adjustable deadbands
(0.25 to 5% of full scale input)
for each setpoint. The G168
will accept any DC voltage between
9 and 30VDC.
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Operation
The field configurable G168
limit alarm setpoints can be
config- ured for HI or LO, failsafe
or non-failsafe operation. Each
of the setpoints have a respective
HI or LO deadband. In a tripped
condition, the setpoint is exceeded
and the appropriate red LED
will illuminate. The trip will
reset only when the process
falls below the HI deadband
or rises above the LO deadband
(see Figure 1). For proper deadband
operation, the HI setpoint must
always be set above the LO setpoint.
In failsafe operation, the relay
is energized when the process
is below the HI setpoint or
above the LO setpoint (opposite
for non-failsafe). In the failsafe
mode, a power failure results
in an alarm state output.
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