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The
2404/2408 is a versatile, high stability temperature or process controller,
with self and
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adaptive tuning, in 1/4 DIN and 1/8 Din sizes. It comes with a
standard 8 segment
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setpoint programmer, with options for
one, four or twenty programs of 16 segments each.
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It has a modular hardware construction which accommodates a
wide range of plug-in modules.
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It will accept up to three I/O modules and two communication
modules. Two Digital inputs
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and an optional alarm relay are included
as part of the fixed hardware build. The hardware is
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configurable for heating,
cooling, alarms and other functions. A transmitter power supply
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option is available, as is a 5 or 10V
transducer supply option. The 2404/2408 is fully
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configurable on-site.
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The
programmer can have up to 8 programmable outputs which can be set in each
segment
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to trigger external events. The two digital inputs can be used to run,
hold and reset the program.
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Parallel
operation of several programmers can be performed with synchronisation
chosen at
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the end of any desired segments.
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Technical Specification
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Process
inputs
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General
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Range
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+/-100mV
and 0 to 10Vdc (auto ranging)
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Sample
rate
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9Hz
(110mS)
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Calibration
accuracy
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0.2% of
reading, +/-1 LSD or +/-1๐C/F
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Resolution
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<1.6µV
for +/-100mV range, <0.2mV for 10Vdc range
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Linearisation accuracy
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No
discernable error
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Zero
drift with ambient temperature
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<0.1µV
per ๐C for +/-100mV range, 0.1mV per ๐C on 10Vdc range
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Gain
drift with ambient temperature
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<0.004%
of reading per ๐C
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Input
filter
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OFF to
999.9secs
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Zero and
span offset
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User
adjustable over the full display range
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Thermocouple
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Types
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See
sensor inputs table
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Cold
junction compensation
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Automatic
compensation typically >30 to 1 rejection of ambient temperature change
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External
references 0, 45 and 50๐C
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RTD/PT100
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Type
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3-wire,
Pt100
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Bulb
current
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0.2mA
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Lead
compensation
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No error
for up to 22 ohms balanced in all 3 leads
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Process
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Range
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+/-100mV,
0 to 20mA or 0 to 10Vdc (All configurable between limits)
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Type
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Linear,
Square root or custom 8 point
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Application
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Process
value, remote setpoint, setpoint
trim, power limit. Value pos. slidewire
330Ω to
15Kohm
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Digital
inputs
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Type
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Single
and triple input: Contact closure or 24Vdc logic input
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Application
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Manual
select, 2nd setpoint, 2nd PID,
keylock, setpoint rate
limit enable,
Program
run, hold, reset, synchronisation and fast run
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