Moore Industries TDZ, Руководство по установке

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The Interface Solution Experts 15
THZ & TDZ
The HART Communicator Menu
With a Device Description
A. Displaying the Current Process Value
The ONLINE MENU displays the current process
value (i.e. °C in a temperature application), the lower
and upper range values, and the actual output
current. Use the DEVICE SETUP menu to
configure the THZ or TDZ.
B. Configuring the Transmitter’s Input
In the “Configure Sensor” Menu, you can program
the type of sensor being used, the sensor’s upper
and lower range values, damping time, and the num-
ber of input wires.
Damping smooths input fluctuations by taking an
average over a user-programmed time period, and us-
ing this value for the THZ or TDZ output. The damp-
ing time can be set between 0 and 30 seconds.
C. Configuring the Analog Output
In the “Analog Output” menu, you can enter the
output range values and perform output trimming.
D. Configuring the HART Output
In the “HART Output” menu, you can enter a polling
address between 0 and 15 for an individual THZ or
TDZ, turn burst mode on/off, and change options.
Note:
If the polling address is set to 0, the transmitter is
automatically set to analog mode. Multiple units on
the same bus must have different addresses.
E. Configuring the Device Information
In the “Configure Dev Info” menu, you can enter a
tag (8 characters), date, descriptor (i.e. a location
code of up to 16 characters), a message (32 charac-
ters), and final assembly numbers for the transmit-
ter. You cannot change the device ID or the
Hardware Revision in the field.
F. Changing Loop Current to a Fixed Value
The “Diagnostics & Services” menu allows you to
change the loop current to a fixed output. Once the
transmitter’s output current is set to a known value, it
can be checked against the value being received by
your receiving device.
Note:
The THZ or TDZ must be removed from automatic
control in order to run the Loop Test.
G. Trimming the Input Sensor
From the “Sensor Trim” menu, you can enter the
offset for a non-calibrated sensor or reset the unit to
the factory settings. A feature new to the THZ is the
ability to trim one or two points along any portion of the
range, not just zero or full span.
Offset for non-calibrated sensors can be entered two
different ways. SENSOR TRIM is used to enter the
offset because it allows the unit to synchronize with
the input. This command can only be used in a con-
trolled environment because fluctuating input makes it
difficult for the unit to synchronize with the input.
Note:
Once the factory trim process is complete,
all other trim values are erased. Reset takes
5 seconds. Pushing Abort during this time
stops the process.
H. Checking on Your Transmitter’s Settings
Use the “Review” menu to check on the transmitters’
settings without the danger of inadvertently changing
any of them.