Chromalox TEMPERATURE CONTROLLER 1604-7 - Manual (Page 18)

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P24 = Alarm 1 action
Available only when P9 = "AL1.P", "AL1.d" or
"AL1.b".
dir = direct action (relay energized in alarm condi-
tion)
rEV = reverse action (relay de-energized in alarm
condition)
P25 = alarm 1 stand-by (mask) function
Available only when P9 = "AL1.P", "AL1.d" or
"AL1.b".
OFF = stand-by (mask) function disabled
On = stand-by (mask) function enabled
NOTE: If the alarm is programmed as band or
deviation alarm, this function masks the alarm
condition after a set point change or at the
instrument start-up until the process variable
reaches the alarm threshold plus or minus
hysteresis. If the alarm is programmed as a
process alarm, this function masks the alarm
condition at instrument start-up until the process
variable reaches the alarm threshold plus or
minus hysteresis.
P26 = Alarm 2 action
Available only when P11 = "AL2.P", "AL2.d" or
"AL2.b".
dir = direct action (relay energized in alarm
condition)
rEV = reverse action (relay de-energized in alarm
condition)
P27 = Alarm 2 stand-by (mask) function
Available only when P11 ="AL2.P", "AL2.d" or
"AL2.b".
OFF = Stand-by (mask) function disabled
On = Stand-by (mask)function enabled
NOTE: for more details to stand-by (mask) function,
see P25 parameter.
P28 = OFFSET adjustment added to the
measured value
This parameter allows to set a constant OFFSET
throughout the readout range.
It is skipped for linear inputs
- For readout ranges with decimal figure, P28 is
programmable from -19.9 to 19.9.
- For readout ranges without decimal figure, P28
is programmable from -199 to 199.
P29 = Displayable protected parameters
This parameter is skipped when P17 = 0.
OFF = Protected parameters cannot be displayed.
On = Protected parameter can be displayed.
P30 = SMART function
This parameter is skipped when none of the
outputs is programmed as control output.
0 = SMART function disabled.
1 = SMART function is NOT protected by safety
lock.
2 = SMART function is under safety lock protection.
Real curve
Readout
Adjusted
curve
Input
P28
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