Starting Communication; Adjusting The Measurement Range Of A Hart Transmitter - Presys TA-60NL Technical Manual

PRESYS
 Instruments
Fig. 20 - Transmitter Powered by an External Power Supply
mA INPUT + HART

2.2.2 - Starting Communication

After defining HART
and press the CONNECT button. If the instrument address is unknown, you can use
SEARCH button to search the device address in the range from 0 to 15.
Up to 15 devices are allowed on HART
with a single field instrument with poll address 0 and mA INPUT + HART
the primary variable can be read either in analog (4-20 mA) and digital form (HART
When connected, data appear in the DEVICE INFO tab, identifying the instrument
such as TAG, manufacturer, description, message, date, measuring range and input filter
(damping). Some of these parameters can be changed in the DEFAULT SETTINGS.
2.2.3 - Adjusting the Measurement Range of a HART
In DEVICE INFO tab, the MIN and MAX fields indicate the measuring range of the
®
HART transmitter. For PV (primary variable) equal to the MIN value, the transmitter
should generate 4 mA. For PV (primary variable) equal to MAX value, the transmitter
should generate 20 mA. The maximum allowable range of the transmitter is shown just
above (RANGE ...). To edit the range of the transmitter, just change the MIN and MAX
values and press the SAVE RANGE button.
On this screen you can also edit the unit of the primary variable and the input filter
(damping).
Page 22
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(Internal Resistor Enabled)
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connection type, inform the ADDRESS of the HART
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network (address 1-15). In connection
®
Transmitter
TA-60NL
®
device
®
connection,
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).