UE Field Safety System One Series, Installation And Maintenance Instructions Manual

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NOTE:
To return to factory calibration settings, enter all zeros for both SPAN and OFST.
Setting the Latch Mode (Manual Reset)
The Safety Relay Output can be configured to latch open when the set point is reached. Refer to the Programming Flowchart on page
19.
• LCH1: In the Programming Mode, press the right
g button.
• If OFF is displayed, press the left 2 button to set LCH1 to ON.
• Press the right
g
button to set the latch. When latch mode is on (set), the Safety Relay Output changes state from closed to open
when the set point is crossed and remains latched until the Safety Relay Output is manually reset by the user or the One Series
Field Safety System™
is power cycled.
When latched, the display will read MAN RSET.
To Reset the Latch
• Enter the Programming Mode (see page 10). If the Latch is set, the display will read MAN RSET. To return to the Process Display
without resetting the latch, press the right
g
button.
• To continue programming without resetting the latch, press the left
2
button.
• Press both 2g buttons to reset the latch. The display now reads RSET DONE.
• Press the right g button to return to the Process Display.
• Press the left 2 button to continue Programming.
Setting the Plugged Port Feature
The One Series Field Safety System™ IAW™ self-diagnostics have the ability to detect that the process port may be plugged. It does
this by monitoring the sensor for changes over time. The amount of change and the time period are programmable. If the process
variable does not change by the amount and selected time period, the display will indicate PLUG and the IAW™ Output will open, indicat-
ing a fault. Refer to the Programming Flowchart on page 19.
• Enter the Programming Mode and press the left 2 button until PLUG PORT is scrolling on display. Press the right g button.
• There are four possible selections -
• OFF - This disables the plugged port function and is the default setting. This should be done where sensor plugging is
not a concern or where the system pressures may not change over time (example: a storage tank).
• 1 minute
• 1 Hour Maximum time with no process variation before fault indication
• 24 Hours
• Using the left
2
button, select a time.
• If OFF is selected, press the right
g
button to return to the PLUG PORT command and leave Plug Port deactivated.
• Press the right g button to enter a process value < 10% of the sensor’s maximum range. This number represents the minimum
variation expected in the process value over the time period entered above under normal operating conditions. Each time the
process value reaches this value, the Plug Port timer is reset.
NOTE:
This value can be accurately determined by subtracting the minimum from the maximum process value as recorded by the MAX/
MIN feature. See RESETTING MAXIMUM AND MINIMUM VALUES on page 12 for additional information.
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