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digital display will show the current value. To change this value,
press either the "up arrow" or "down arrow" button. Note that the
"Alarm Low Set point" cannot equal or be greater than the
"Cleaning Low Set point". If the "Alarm Low Set point" is set to
less than 0.0, the digital display will show "---" which indicates
that the alarm is disabled. Once the programming mode is exited,
the "Alarm Low Set point" LED will not be displayed if disabled.
To continue programming, press the "Set" button again.
6.2 Alarm High Set point
To view the "Alarm High Set point", enter the programming mode
in the sequence as described above. The Alarm High LED (red)
will flash and the digital display will show the current value. To
change this value, press either the "up arrow" or "down arrow"
button. Note that the "Alarm High Set point" cannot equal or be
less than the "Cleaning High Set point". If the "Alarm High Set
point" is set to greater than 10.0, the digital display will show "---
" which indicates that the alarm is disabled. Once the
programming mode is exited, the "Alarm High Set point" LED
will not be displayed if disabled. To continue programming, press
the "Set" button again.
6.3 Cleaning Low Set point
To view the "Cleaning Low Set point, enter the programming
mode in the sequence as described above. The Cleaning Low Set
point (yellow) will flash and the digital display will show the
current value. To change this value, press either the "up arrow" or
"down arrow" button. Note that the "Cleaning Low Set point"
cannot be less than or equal to the "Alarm Low Set point", or be
greater than the "Cleaning High Set point"; however, it can be
equal to the Cleaning High Set point to allow for zero hysteresis.
To continue programming, press the "Set" button again.
6.4 Cleaning High Set point
To view the "Cleaning High Set point, enter the programming
mode in the sequence as described above. The Cleaning High Set
point (yellow) will flash and the digital display will show the
current value. To change this value, press either the "up arrow" or
"down arrow" button. Note that the "Cleaning High Set point"
Dustronix PS700 Operation Manual
N a ti o n al C o n tro l s C o rp.
Phone 800-323-2593 • Fax 630-231-1377 • www.nationalcontrols.com
cannot be greater than or equal to the "Alarm High Set point", or
be less than the "Cleaning Low Set point"; however, it can be
equal to the Cleaning Low Set point to allow for zero hysteresis.
To continue programming, press the "Set" button again.
6.5 Alarm Relay
To view the "Alarm Relay Logic", enter the programming mode
in the sequence as described above. The digital display will show
"Ano" or "Anc" which equals Alarm relay Normally Open or
Alarm relay Normally Closed. This setting can be toggled by
pressing either the "up arrow" or "down arrow" button. To
continue programming, press the "Set" button again.
6.6 Cleaning Relay
To view the "Cleaning Relay Logic", enter the programming
mode in the sequence as described above. The digital display will
show "Cno" or "Cnc" which equals Cleaning relay Normally
Open or Cleaning relay Normally Closed. This setting can be
toggled by pressing either the "up arrow" or "down arrow" button.
To continue programming, press the "Set" button again.
6.7 Unit of Measure
To view the "Units of Measure", enter the programming mode in
the sequence as described above. The digital display will show
"IN" or "PA" which equals the units of measure to be displayed
(INches Water or kiloPAscals). This setting can be toggled by
pressing either the "up arrow" or "down arrow" button. To
continue programming, press the "Set" button again.
6.8 Security Code
To view the "Security Code", enter the programming mode in the
sequence as described above. The digital display will show a
number from "0.0.0" to "2.5.5.". This is the security code option.
Note that decimal points have been added between the digits to
help distinguish this number from other programming values. If
the number is left at "0.0.0." the operator will not be prompted to
enter a code when programming. If any other number is entered
here, the user will be prompted at the beginning of the
programming sequence to enter that number. If the number is
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Dustronix PS700 Operation Manual
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