IntelliPack Series 811T Transmitter/Alarm User's Manual DC Voltage/Current Input
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2.0 PREPARATION FOR USE
UNPACKING AND INSPECTION
Upon receipt of this product, inspect the shipping carton for
evidence of mishandling during transit. If the shipping carton is
badly damaged or water stained, request that the carrier's agent
be present when the carton is opened. If the carrier's agent is
absent when the carton is opened and the contents of the carton
are damaged, keep the carton and packing material for the
agent's inspection. For repairs to a product damaged in
shipment, refer to the Acromag Service Policy to obtain return
instructions. It is suggested that salvageable shipping cartons
and packing material be saved for future use in the event the
product must be shipped.
This module is physically protected with
packing material and electrically
protected with an anti-static bag during
shipment. However, it is recommended
that the module be visually inspected for
evidence of mishandling prior to
applying power.
This circuit utilizes static sensitive
components and should only be handled
at a static-safe workstation.
INSTALLATION
The transmitter module is packaged in a general purpose
plastic enclosure. Use an auxiliary enclosure to protect the unit in
unfavorable environments or vulnerable locations, or to maintain
conformance to applicable safety standards. Stay within the
specified operating temperature range. As shipped from the
factory, the unit is factory calibrated for all valid input ranges and
has the default configuration shown in Table 3 below.
WARNING:
Applicable IEC Safety Standards may require that
this device be mounted within an approved metal enclosure or
sub-system, particularly for applications with voltages greater
than or equal to 75VDC or 50VAC.
Table 2: 811T Default Factory Configuration
PARAMETER
CONFIGURATION/CALIBRATION
Input Range
0 to 22mA DC
Samples
N=1 (No Input Averaging)
Output Range
0 to 10V DC (Jumper Installed)
Output Mode
Normal Acting (Ascending Signal)
Transmitter Scaling
Input for 0% Output = 4mA,
Input for 100% Output = 20mA.
Computation
None (Directly Proportional)
Alarm Mode
High Limit
Setpoint
20mA DC
Deadband
0.16mA (1% of 16mA span)
Operating Mode
Failsafe
Time Delay
100ms
Reset Type
Automatic (momentary)
Shaded entries apply to Model 811T-1500 units which also
include alarm relay functionality.
Your application may differ from the default configuration and
will require that the transmitter be reconfigured to suit your needs.
This is accomplished with Acromag’s user-friendly Windows 95
or NT
Configuration Program and Serial Port Adapter.
Configuration is normally done prior to field installation since field
configurability via the module’s push-buttons is generally limited
to zero, full-scale, setpoint, and dropout adjustments. See the
Transmitter Configuration Manual (8500-570) for instructions.
Jumper Installation (Voltage Output)
For voltage output, a short jumper must be installed between
the output “I+” and “JMP” terminals. A jumper wire is included
with the unit and has already been installed between the output
“I+” and “JMP” terminals. Verify the position of this jumper if your
application requires output voltage. Remove this jumper for
current output applications. Refer to the Electrical Connections
Drawing 4501-640.
Mounting:
Refer to Enclosure Dimensions Drawing 4501-642 for
mounting and clearance dimensions.
DIN Rail Mounting:
This module can be mounted on "T"
type DIN rails. Use suitable fastening hardware to secure the
DIN rail to the mounting surface. Units may be mounted
side-by-side on 1-inch centers for limited space applications.
"T" Rail (35mm), Type EN50022:
To attach a module to this
style of DIN rail, angle the top of the unit towards the rail and
locate the top groove of the adapter over the upper lip of the
rail. Firmly push the unit towards the rail until it snaps solidly
into place. To remove a module, first separate the input
terminal block(s) from the bottom side of the module to
create a clearance to the DIN mounting area. Next, insert a
screwdriver into the lower arm of the DIN rail connector and
use it as a lever to force the connector down until the unit
disengages from the rail.
Electrical Connections
Terminals can accommodate wire from 14-24 AWG (stranded
or solid copper). Strip back wire insulation 1/4-inch on each lead
before installing into the terminal block. Input wiring should be
shielded twisted-pair. Since common mode voltages can exist on
signal wiring, adequate wire insulation should be used and proper
wiring practices followed. It is recommended that transmitter
output and power wiring be separated from the input signal wiring
for safety, as well as for low noise pickup. Note that input, power,
output, and relay terminal blocks are a plug-in type and can be
easily removed to facilitate module removal or replacement
without removing individual wires. If your application requires
vo
ltage output, you must install a jumper between the output “I+”
and “JMP” terminals (pre-installed from the factory). Remove this
jumper for current output applications. Be sure to remove power
and/or disable the load before unplugging the terminals to
uninstall the module, installing or removing jumpers, or before
attempting service. All connections must be made with power
removed.
CAUTION:
Risk of Electric Shock - More than one disconnect
switch may be required to de-energize the equipment before
servicing.