TX180 Temperature Transmitter
13
FAIL
SAFE
<0%
100%>
FAIL
<0%
100%>
SAFE
In operation, the LI-1 and LI-2 displays both give the process temperature.The LI-2 provides some
additional information The LI-1 displays the process temperature and a minus sign if applicable. The
temperature is displayed with a floating decimal point. For measured temperatures over 999.9 no
decimal point will be displayed. Otherwise, the LI-1 will show one tenth degree increments. Unlike
the more capable LI-2 display, the LI-1 does not show the units of measurement “C”, “F”, “R”, or
“K”. If it is necessary to display the temperature units on the LI-1, note by hand or apply a separate
label on the face of the display.
The LI-2 has more display capabilities. With the LI-2, the top display row shows the process
temperature, the units of measurement, “C”, “F”, “R”, or “K” and a minus sign if applicable. The mid
portion is an analog bar graph display showing the % of range based on the ZERO and FULL SCALE
setting of the transmitter. When power is applied the leftmost segment of the bar graph, the 0% and
the 100% become energized momentarily. If the measured temperature is below what the ZERO is
set to (below LRV), then the left arrow is energized. If the measured temperature is above the FULL
SCALE setting (above URV), then the right arrow becomes energized. The bottom portion of the LI-2
display is capable of displaying an alphanumeric message up to 7 characters long. In normal
operation this row shows a label, which is factory set to display “TX180”.
Note that the process temperature displayed on the LI-1 and LI-2 is the actual temperature as
measured by the transmitter, it is not affected by the analog output range settings. This is particularly
useful in startup or operation where the measured temperature is temporarily outside the normal
operating range.
When the unit is first turned on, the display will show the measured temperature. It is frequently the
case that no sensor is connected when the transmitter is first turned on. In this case, the display will
show a sensor failure. In the event of a sensor or transmitter failure, the indication on the L-1 display
changes to read:
The words “FAIL” and “SAFE” will alternate in the display window to let you know that a failure
condition has occurred.
In the event of a sensor failure, the indication on the bottom line of the LI-2 display changes to:
The words “FAIL” and “SAFE” will alternate in the display window to let you know that a failure
condition has occurred. The Percent of Output Bar Graph will indicate the output level of the
transmitter. If the transmitter Failsafe Report value is set to “Fail High” (23mA), the display will be as
shown, at over 100% of output. If the Failsafe Report is set to “Fail Low” (3.8mA), the Percent of
Output Bar Graph would indicate the output level at under 0% of output. See sections 4.8, 5.8 or
Содержание TX180
Страница 1: ...Model TX180 Temperature Transmitter Installation and Operation Manual P N 974083 04 02 Rev B ECO 26721...
Страница 2: ......
Страница 26: ...26 Fig 7 Dynisco TX180 ITX190 Configuration Flowchart LI 2 Two Line Display Keypad...
Страница 40: ...40 Fig 8 Dynisco TX180 ITX190 Configuration Flowchart LI 2 One Line Display Keypad...
Страница 50: ...NOTES...
Страница 52: ...DYNISCO INSTRUMENTS 38 FORGE PARKWAY FRANKLIN MA 02038 ATTN MARKETING DEPT Place Stamp Here...