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Description
The V108 is a compact, 4 digit
indicator (with alarms) that
fits 1/8 DIN cutouts. It accepts
temperature inputs from J, K,
T, L, N, R, S, B, C and Platinel
II type thermocouples and three-wire
Platinum 100 Ohm (Pt100) RTDs.
Process variables such as 4-20mA
or ranges within -9.99 to 80mV
can also be measured. Other
thermo- couple types such as
D and E and custom curves can
be configured at the factory.
Voltage ranges from 0 to 10V
can be measured with the optional
(model SUB2-1V1) adapter.
Three
programmable setpoint alarms
can be field configured as rate
of change, high or low; non-latching,
latching or new. The new alarm
indicates when a latched alarm
has not been acknowledged and
the measured value crosses the
setpoint trip level a second
time. Alarm hysteresis (deadband)
can be configured from 1 to
9999 process variable units.
Each alarm has a programmable
delay up to 999.9 seconds. The
alarms can be linked to either
of two relay outputs. Alarms
can be configured in combination
(e.g. one or all three alarms
linked to one or both relays)
and will operate in fail-safe
(e.g., normally energized) or
non fail-safe modes. Additionally,
the unit can be configured for
password protection, limiting
operator access to any or all
functions. An alarm blocking
function is also configurable
to prevent alarm tripping during
process or start-up. The unit
also accepts wiring for remote
alarm acknowledgment
Thermocouples,
three-wire RTDs and mV inputs
can be accepted directly into
the indicator. Current signals
such as 4-20mA are input using
a 2.49 Ohm shunt resistor, included
with the indicator and mounting
hardware. Other shunt resistor
values can be used to measure
higher current levels, provided
the produced signal is within
the -9.99mV to 80mV input range.
Similarly, voltage inputs such
as 0-10V can be measured using
the optional attenuator (model
SUB2-1V1).The input can be scaled
as desired for display. Offset
and two point slope adjustments
are fully programmable.
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Application
The V108 is excellent for temperature
and process variable measurement.
The NEMA 4, front plug-in, panel
mount indicator fits standard
1/8 DIN cutouts.
The
field configurable V108 makes
an ideal standardized solution
for a variety of temperature
measurement and on-off control
applications. For example, it
can be used to control the heating
and cooling elements in an oven
or environmental control system
using two setpoints for high
and low temperature limits.
Similarly, a 4-20mA pressure
signal can be monitored and
the setpoints used to control
or alarm the gas pressure or
liquid level in a tank or vessel.
Weight, flow, pressure, temperature,
speed, position and rate are
just some of the process variables
that can be accurately displayed
and monitored with this flexible
and effective unit.
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