Key Intellipack 811T Features - Acromag IntelliPack 811T Series User Manual

IntelliPack Series 811T Transmitter/Alarm User's Manual
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The module uses a high resolution, low noise, Sigma-Delta,
Analog to Digital Converter (- ADC) to accurately convert the
input signal into a digitized value. An optically isolated Digital-to-
Analog Converter (DAC) provides the corresponding process
current or voltage output. A separate alarm circuit controls the
relay contacts.
Flexible transmitter functionality and an optional alarm
combined in a single device, plus convenient reprogrammability,
makes this instrument extremely powerful and useful over a
broad range of applications. This transmitter may be configured
for several input computation functions, such as, proportional,
square root, and 24-segment linearization. Input averaging may
also be combined with any computation function. The output
may produce a normal (ascending), or reverse (descending)
response. The relay of 811T-1500 models may be configured as
a limit alarm with deadband, latching or non-latching contacts,
and failsafe or non-failsafe modes. A programmed relay time
delay may be implemented to filter transients & minimize
nuisance alarms.
An optional AC current sensor (Acromag Model 5020-350)
may be used in conjunction with the DC current input circuit of
this device to implement an AC current transmitter for inputs up
to 20A rms. The optional AC current sensor is itself an isolated,
accurate, toroidal instrument transformer, that outputs a safe,
low-level DC milliamp signal to the input of the transmitter. As an
isolated device, it adds an extra level of input isolation and
protection. See "AC Current Sensor" section for more
information.
All IntelliPack modules are designed to withstand harsh
industrial environments. They feature RFI, EMI, ESD, EFT, and
surge protection, plus low temperature drift, wide ambient
temperature operation, and isolation between input, output,
power, and relay contacts. They also have low radiated
emissions per CE requirements. As a wide-range DC-powered
device, the unit may be powered from DC power networks
incorporating battery back-up. Additionally, the input power
terminal is diode-coupled, providing reverse polarity protection.
This allows the unit to be connected to redundant power supplies,
or several units to safely share a single DC supply.
Units are DIN-rail mounted and removable terminal blocks
facilitate ease of installation and replacement, without having to
remove wiring. Transmitter power, output, and relay wiring are
inserted at one side of the unit, while input wiring is inserted at
the other side. Connectors are an industry standard screw clamp
type and accept a wide range of wire sizes.
The safe, compact, rugged, reconfigurable, and reliable
design of this transmitter makes it an ideal choice for control
room and field applications. Custom IntelliPack module
configurations are also possible (please consult the factory).

Key IntelliPack 811T Features

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Agency Approvals - cULus Listed.
•
Easy Windows Configuration - Fully reconfigurable via
our user friendly Windows 95
Configuration Program.
•
Nonvolatile Reprogrammable Memory - This module has
an advanced technology microcontroller with integrated,
non-volatile, downloadable flash memory and EEPROM.
This allows the functionality of this device to be
reprogrammed thousands of times.
•
Convenient Field Reprogrammability - This unit allows
transmitter zero and span calibration, plus alarm setpoint
and deadband adjustments, to be made via module push-
buttons and LED's, thus facilitating in-field changes without
having to connect a host computer.
•
Fully Isolated - Input, power, output, and optional relay
contacts are all isolated from each other for safety and
increased noise immunity.
•
Wide Input Transfer Function Variability - This transmitter
may utilize a proportional, 24-segment linearizer, or square-
root input transfer function. Averaging may be combined
with any other input function. Other functions are possible—
please consult the factory.
•
Universal Analog Outputs - Supports process current
output ranges of 0-20mA, 4-20mA, and 0-1mA, or 0-5V and
0-10V outputs. Current outputs may drive up to 550,
typical. Voltage outputs include short circuit protection.
•
Normal Or Reverse Acting Output Direction - The output
of this transmitter may be configured for a normal
(ascending), or reverse (descending) response.
•
Flexible DC Current or Voltage Inputs - Accepts process
current (0-22mA), or wide range voltage inputs to  100V
DC, with eight different gain ranges.
•
Optional AC Current Input - An optional AC current sensor
can be purchased separately to support AC current inputs.
•
Convenient Input Excitation Supply - The input includes
an excitation supply for operation with two-wire transmitters.
•
Automatic Self-Calibration - Self-calibration is built-in to
correct for temperature drift of the input circuit.
•
Self-Diagnostics - Built-in routines operate upon power-up
for reliable service, easy maintenance, and troubleshooting.
•
Wide-Range DC-Powered - This device operates from a
wide DC supply range and the power terminal is diode-
coupled. This makes this transmitter useful for systems with
redundant supplies, and/or battery back-up.
•
Wide Ambient Operation - The unit is designed for reliable
operation over a wide ambient temperature range.
•
Hardened For Harsh Environments - The unit will operate
reliably in harsh industrial environments and includes
protection from RFI, EMI, ESD, EFT, and surges, plus low
radiated emissions per CE requirements.
•
Convenient Mounting, Removal, & Replacement - The
DIN-rail mount and plug-in type terminal bocks make
module removal and replacement easy.
•
High-Resolution Precise A/D & D/A Conversion - Includes
a high-resolution, low noise, Sigma-Delta, Analog-to-Digital
Converter (- ADC) and Digital-to-Analog Converter
(- DAC), for high accuracy and reliability.
•
LED Indicators - Used to indicate operating, alarm, and
field configuration status.
- 3 -
DC Voltage/Current Input
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or NT IntelliPack