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OPERATING THE IMY
After completing all set-up operations, the unit is ready to install and
operate. After power is applied, a display test consisting of illuminating all
segments for 2 seconds is performed. Afterward, the input or total will
appear, depending upon the display mode prior to the last power-down. To
switch the display to input, press “DOWN” (indicated by “arrows” on the
front panel) and to switch it to total, press “UP”. If the integrator/totalizer
optionisnot installed,thendisplay switchingto totalisinoperative. Aminus
sign “-” will precede numbers that are negative.
QUICK PROGRAMMING
Tolimitaccesstotheset-upparameters,connectakey-switchorwirefrom
PGM. DIS. (TBA #3) to COMM. (TBA #7). With this pin connected to
common, only a predetermined amount of data can be viewed or altered, as
programmedbyprogrammingmodule#3.If“NO”wasprogrammedforallof
the available steps in module #3, then pressing “P” will cause the unit to
display “Loc”. However, if “YES” was programmed in one or more of the
steps, then “P” will invoke entry into a series of commonly modified
parameterswhileprotectingthecrucialset-upinformation.Thisisreferredto
as the “quick programming” mode. When “quick programming” mode is
entered,thealarmsandhysteresisvaluescanbemodified inthesamemanner
as in the regular programming mode. The new alarm and hysteresis values
will take effect when “P” is pressed.
The other operations in the “quick programming” mode require special
key sequences as shown:
To reset latched alarm, scroll through steps in “quick
programming” mode using the “P” button until “LAtCH1” or
“LAtCH2”appearsinthedisplay.Iftheydonotappear,theyare
not latched.
To reset: While “LAtCH1” or “LAtCH2” is being
displayed,pressandhold“DOWN”andpress“P”.
Pressing “P” alone causes a step to the next item
with no action on the alarm.
To reset peak and valley buffers, scroll through steps in “quick
programming” mode using the “P” button until “PEA” or
“VAL” appears in the display.
To reset: While “PEA” or “VAL” is being
displayed,pressandhold“DOWN”andpress“P”.
Pressing “P” alone causes a step to the next item
with no action taken on the buffer.
The front panel buttons are not only used to input data during the
programmingand“quickprogramming”mode,butcontrolanumberofother
functions (if enabled in Pro “3”) as well. In the normal meter mode, these
functions are available:
To switch to display of input: Press “DOWN” button.
To switch to display of totalizer: Press “UP” button.
To reset totalizer to zero: Press and hold “UP” and press “P”.
To enter programming or “quick programming”: Press “P”.
Aftereachoperation,amessagewillappearbrieflytoacknowledgetheaction.
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