OPERATING THE IMR
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 option is not installed, then display switching to
total is inoperative. A minus sign
“-”
will precede numbers that are negative.
QUICK PROGRAMMING
To limit 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 programmed by
programming 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 parameters while 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 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”
appears
in the display. If they do not appear, they are not latched.
To reset: While
“LAtCH1”
or
“LAtCH2”
is being
displayed, press and hold
“DOWN”
and press
“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,
press and hold
“DOWN”
and press
“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 programming
and
“quick programming”
mode, but control a number of other 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”
.
After each operation, a message will appear briefly to acknowledge the action.
-19-