Omega CN76000, Руководство пользователя

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negative value allow ed is -199.9, -19.99, or -1.999. Note: Note: Note: Note: Note: InPC is reset to zero when
the input type is changed, or when decimal position is changed in T/C or RT D
ranges.
Changing decimal position in current or voltage ranges will not reset InPC.
FiLt FiLt FiLt FiLt FiLt Digital Filter: Select OFF OFF OFF OFF OFF, 1 1 1 1 1 to 99 99 99 99 99. In some cases the time constant of the sensor,
or noise could cause the display to jump enough to be unreadabl e. A setting of 2
is usually sufficient to provide enough filtering for most cases, (2 represents
approximately a 1 second time constant). When the 0.1 degree resolution is
selected this should be increased to 4. If this value is set too high, controllability will
suffer.
S E C O N D S E C O N D S E C O N D S E C O N D S E C O N DA R A R A R A R A RY MENU (cont'd) Y MENU (cont'd) Y MENU (cont'd) Y MENU (cont'd) Y MENU (cont'd)
LPbr LPbr LPbr LPbr LPbr Loop Break Protection: Select O F F O F F O F F O F F O F F, , , , , 1 1 1 1 1 to 9999 9999 9999 9999 9999 seconds. I f, during operation, the
output is minimum (0%) or maximum (100%), and the input moves less than 5°F
(3°C) or 5 counts over the time set for LPbr, the LOOP bAd
LOOP bAd
LOOP bAd LOOP bAd
LOOP bAd message will appear.
This condition can also be routed to an Alarm Condition if alarms are present and
turned On (see ALbr in the secure menu). The loop break error can be reset by
pressing the ENTER
ENTER
ENTER ENTER
ENTER key when at the LPbr menu item. The INDEX INDEX
INDEX INDEX
INDEX & E N T E R E N T E R
E N T E R E N T E R
E N T E R keys
m ay also be used.
POL Process Output Low (936): Select -450°F, -260°C, or -1999 counts to 50 degrees or counts
less than
POH .
POH Process Output High (936): Select from 50 degrees or counts greater than POL to
+9990°F, +5530°C, or 9990 counts. A voltage output is scalable from 0 to 10 VDC that
represents the Process Variable. To properly scale the output, the values for
POL and
POH must be calculated. The simplest example is an output of 0 to 10 VDC from 0 to 200°.
In this example POL =0 and POH =200. To Calculate POL and POH for other ranges use
the following:
K = (Highest desired temperature - Lowest desired temperature) /
(Maximum desired voltage - Minimum desired voltage)
POH = ((10 - Maximum desired voltage) * K) + Highest desired temperature
POL = ((Minimum desired voltage - 0) * K) - Lowest desired temperature
LOrE Local / Remote Status (992): Select LOC or rE. When LOC is selected, the host computer
is advised not to send remote commands. When rE is selected, CFLt=2, and nAt is set
> 0, if the control is not accessed by the host computer in the time set in nAt, the control
will revert to the CFSP.
CFSP Communications Fail Set Point (992): Set to desired value.
Addr Control Address (992): Set from 1 to FF. This number (hexadecimal, base 16) must match
the address number used by the host computer. Viewed only in this menu.