Chromalox TEMPERATURE CONTROLLER 1604-7 - Manual (Page 22)

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Pushbutton functionality during operating mode.
FUNC =
o when the instrument is in "normal
display mode"
1) with a brief pressure (<3s) it starts
the parameter modification
procedure.
2) with a pressure within 3s to 10s it
changes the indication on the lower
display (see "display function").
3) with a pressure longer than 10s it
enables the lamp test (see "Lamp
Test" paragraph).
o During parameter modification, it
allows to memorize the new value of
the selected parameter and go to the
next parameter (increasing order).
MAN = pressed for more than 1 s, it allows to
enable or disable the manual function
and, during parameter modification,
to scroll back the parameters without
memorizing the new setting.
s = o During parameter modification, it
allows to increase the value of the
selected parameter.
o During MANUAL mode, it allows to
increase the output value.
t = o During parameter modification, it
allows to decrease the value of the
selected parameter.
o During MANUAL mode, it allows to
decrease the output value.
s+MAN = During parameter modification they
allow to jump to the maximum
programmable value.
t+MAN = During parameter modification they
allow to jump to the minimum
programmable value.
NOTE: a 10 or 30 seconds time out (see P 36)
can be selected for parameter modification during
run time mode.
If, during operative parameter modification, no
pushbutton is pressed for more than 10 (30)
seconds, the instrument goes automatically to the
“normal display mode” and the eventual
modification of the last parameter will be lost.
ENABLE/DISABLE THE CONTROL OUTPUT
When the instrument is in "normal display mode",
by keeping depressed for more than 5 s
s and
FUNC pushbuttons, it is possible to disable the
control outputs. In this open loop mode the device
will function as an indicator, the lower display will
show the word OFF and all control outputs will
also be in the OFF state (the output is also
conditioned by P18 and P20 parameters).
When the control outputs are disabled the alarms
are also in non alarm condition.
The alarms output conditions depend on the
alarm action type (see P24-P26).
Depress for more than 5 s
s and FUNC
pushbuttons to restore the control status.
The alarm stand-by function, if configured, will be
activated as if it was at power up.
If a power down occures when the control output
is disabled, at instrument power up the control
output will be automatically disabled.
SP - SP2 SELECTION
It is possible to select the operating set point (SP
or SP2) only by an external contact (terminals 14
and 15).
By setting P43, it is possible to display the final or
the operative set point during a ramp execution.
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