Damping - Siemens OCM III Instruction Manual

Flow Rate Field
Totalizer Field
Relay / No Echo Field
Status Field
The OCM-3 provides illumination for the LCD for easier viewing of the display.
Illumination can be set (P14) to be normally on or off, or automatic. When automatic is
selected, the lighting will automatically go on when keypad activity is sensed and then
extinguish after 15 seconds of inactivity.
For battery operation, set display lighting to off or auto.

DAMPING

The OCM-3 provides two separate damping functions: reading and mA output. Zero
or no damping allows fastest response while high or 100% provides the slowest
response. The damping is usually set to provide a reliable response without
sacrificing stability.
The reading damping, P13, dampens only the flow rate reading of the 'Flow and Total'
display F2. The damping selections are: off, low, medium and high. Relay functions
associated with flow rate respond to the dampened reading values.
mA output damping, P27, dampens the change in the mA output. The parameter entry
is in seconds for spanning the 0 to 100% of the mA range selected (P26). Displays
and relay functions associated with the mA output respond to its
dampened value.
7ML19985AB01
flow rate
total
relay identification
relay status : 0 = relay de-energized
OCM III
units, P5
multiplier, P32
under loss of echo
condition, "NO
ECHO" will
alternately flash
1 = relay energized
* = alarm state (indicated when
flashing)
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