Emerson Rosemount 3100 Series, Reference Manual, Page: 62 / 144

Reference Manual
00809-0100-4840, Rev. BA
July 2008
Rosemount 3100 Series
5-4
5. Press the green button
↓
to get to the next diagnostic data, “
F
”.
This is the frequency at which the transmitter is operating, and should
read between 49 and 58 kHz.
6. Press the green button
↓
to get to the next diagnostic data, “
t
”.
This is the temperature being recorded by the integral temperature sensor
(or remote temperature sensor, if fitted) and is being used by the
transmitter to calculate the distance-to-target.
7. Press the green button
↓
and then the blue button
→
to change to the
PV display.
Loop Test
(The 3102/3105)
Screen display:
tESt
The transmitter can cycle through the programmed operating range without
any change in the liquid level, causing the current output to cycle through a
normal operation (and energize/de-energize relays on The Rosemount 3102).
The transmitter can be programmed to fix the loop current at any value
between 4 and 20 mA to allow testing of any other loop or control instruments.
To enter the loop test menu from the PV display, press the blue button
→
to
display “
diAg
” and then press-and-hold the blue button
→
for at two seconds
to display “
tESt
”.
NOTE:
See Figure C-3 on page C-4 for a map of the diagnostics menu structure.
Cycle Function
Screen display:
CyCLE
a) After entering the “
tESt
” menu (see above), press the green button
↓
to
get to the “
CyCLE
” menu option.
b) Press the blue button
→
to enter the “
CyCLE
” menu. The display indicates
“0.0000”.
c) Press the blue button
→
to start the cycle.
For 100 seconds, the transmitter cycles from the 4 mA value to the
maximum PV value and back to the 4 mA value again.
Press the green button
↓
at any time to pause and resume the cycle.
d) Press the blue button
→
to exit the cycle and re-display “
CyCLE
”.
Loop-current Fixing
Screen display:
LOOP
a) From the “
tESt
” or “
CyCLE
” display, press the green button
↓
to get to the
“
LOOP
” menu.
b) Press the blue button
→
to enter the “
LOOP
” menu, and the display will
zero to show “0.000”.
c) Press the blue button
→
to start the editing mode. The first digit flashes to
indicate it can now be edited.
d) Press the green button
↓
repeatedly to edit the flashing digit.