OPERATINGTHE 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
switchthe display to input, press “DOWN” (indicated by “arrows” on the
frontpanel) and to switch it to total, press “UP”. If the integrator/totalizer
optionis not installed, then display switching to total is inoperative. A minus
sign“-” will precede numbers that are negative.

QUICK PROGRAMMING

Tolimit access to the set-up parameters, connect a key-switch or wire from
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
programmedbyprogramming module #3. If “NO” was programmed for all of
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
parameterswhile protecting the crucial set-up information. This is referred to
as the “quick programming” mode. When “quick programming” mode is
entered,the alarms and hysteresis values can be modified in the same manner
asin the regular programming mode. The new alarm and hysteresis values
willtake effect when “P” is pressed.
The other operations in the “quick programming” mode require special
keysequences as shown:
To reset latched alarm, scroll through steps in “quick
programming”mode using the “P” button until “LAtCH1” or
“LAtCH2”appears in the display. If they do not appear, they are
notlatched.
Toreset: While “LAtCH1” or “LAtCH2” is being
displayed,press and hold “DOWN” and press “P”.
Pressing“P” alone causes a step to the next item
withno action on the alarm.
Toreset 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,press and hold “DOWN” and press “P”.
Pressing“P” alone causes a step to the next item
withno action taken on the buffer.
The front panel buttons are not only used to input data during the
programmingand “quick programming” mode, but control a number of other
functions(if enabled in Pro “3”) as well. In the normal meter mode, these
functionsare available:
Toswitch to display of input: Press “DOWN” button.
Toswitch to display of totalizer: Press “UP” button.
Toreset totalizer to zero: Press and hold “UP” and press “P”.
Toenter programming or “quick programming”: Press “P”.
Aftereachoperation, a message will appear briefly to acknowledge the action.
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