Emerson Daniel 1200 Series, Руководство пользователя

Страница: 20 / 114

Table 1-3: Rate /Internal display s ettings
(continued)
Setting Display
Total and grand total
display unit multipli-
er x1, x100 (h), x1000 (k), or x1,000,000 (M) multiplier (and prefix) applied to
total or grand total display units. Setting is independent for each.
Total and grand total
decimal point Up to six decimal places or none:
6.666666, 55.55555, 444.4444, 3333.333, 22222.22, 111111.1 or
0000000
Total and grand total decimal points are independently programmed, and
are independent of rate decimal point.
Totalizers Calculates total and grand total based on rate and field programmable mul-
tiplier to display total in engineering units. Time base must be selected ac-
cording to the time units in which the rate is displayed. The total and grand
total utilize the same time base, with different conversion factors and re-
sets.
Totalizer reset Via through-glass RESET button, manual button (cover off), external con-
tact closure (total only), automatically via user selectable preset value and
time delay (1 – 99,999 sec). Manual reset may be disabled or protected by
pass word for the total and grand total. Total and grand total reset inde-
pendently.
Total overflow and
rollover The total can display up to 999,999,999,999. Up to 9,999,999 can normally
be displayed on the lower display. A rollover display toggles between the
first 6 digits and last six digits (999,999 <> 999,999) for a 12 digit total. The
total will rollover beyond 999,999,999,999.
Grand total overflow
and rollover The grand total can display up to 999,999,999,999. Up to 9,999,999 can
normally be displayed on the lower display. A rollover display with toggle
between the first 6 digits and last six digits (999,999 <> 999,999) for a 12
digit grand total. The grand total will rollover beyond 999,999,999,999.
External total reset External reset connections are made between RST and COM. Logic High:
1.4V, 3.3V max; Logic Low: < 0.8V.
32 ms debounce.
1.5 4-20 mA transmitter output settings
The settings below are 4-20 mA transmitter output specifications for the Internal Display.
Except when noted all specifications apply to operation at +25°C (+77°F).
4-20 mA transmitter output settings Table 1-4:
Setting Description
Output source Rate/process, total, grand total or disabled
Scaling range 4.000 to 20.000 mA for any display range
Disable If disabled, the output will output 3.2 mA
Introduction
8 LTM Internal Display