Badger Meter Impeller Data Industrial 3100 Series, Руководство пользователя, Страница: 20 / 28

Solid State Switch and Form “C” Outputs
The four form C mechanical relays, and one N .O . solid state switch pulse output are completely independent, electrically
isolated and can be programmed as either pulse or set-point outputs .
Totalizer – Pulse Output
When the function “Totalizer” is selected the unit of measure and resolution are independent from the displayed units, and
can be programmed where 1 pulse occurs once every 0000000 .1 to 999999999 of units selected, with any pulse width from
0001 to 9999 mS .
Set Points
The Set Point programming is extremely powerful and flexible, with unit of measure and resolution independent from the
displayed units . Since the Set Point, Release Point and their associated time delays are fully independent, the alarm can be
either a high rate or low rate, depending on whether the Set Point is selected greater than the release point, or the release
point is greater than the Set Point . For applications where the relay must remained energized, once set, a latching feature is
provided . When latched, the relay remains energized until reset from the front panel . While design planning, note that both
the relays and the pulse outputs can be programmed as alarm points and only the relays provide both normally open and
normally closed contacts . The switch is a simple N .O . contact .
Terminology
Display Definition Function
SETPT Set point If the set point value is a greater than the release point value, when
the displayed flow rate exceed the set point, the Set Point Delay
Timer is started . If the set point is less than the release point when the
flow drops below the set point, the timer is started
SDLY Set point time delay If the set point remains crossed for a continuous period of time
exceeding the set point delay setting, the relay will energize . If the
flow rate briefly re-crosses the set point before the timer reaches
its setting, the timer will reset and await another set point crossing
before restarting the count from zero .
LATCH Locks relay in energized state
If Latch is chosen, once energized by the set-point time delay,
the relay will remain energized until reset from the front panel .
Otherwise, the relay will de-energize when the Release Point Delay
Timer times out .
RELP Release point If the relay is already energized, not latched and the flow input
crosses the release point, the Release Point Delay timer is started .
RDLY Release point time delay If the release point remains crossed for a continuous period of
time and exceeds the release point delay setting, the relay will de-
energize . If the flow rate briefly re-crosses the release point before
the timer reaches its setting, the timer will reset and await another
release point, crossing before restarting the count from zero .
High Flow Set Point
The SETPT must be a value greater than the RELP . The relay output will have continuity between its N.C. terminal and COM
until the flow has exceeded the SETPT for a continuous period of time exceeding the SDLY . At this time, the N .C . connection
will open and the N .O . contact will have continuity to the COM terminal . When the flow has dropped below the RELP for a
continuous period of time exceeding the RDLY , the relay states will return to their original states . If the latch has been set to
ON once the set point and set delay have been satisfied, the relay will not release until manually reset .
Low Flow Set Point
The SETPT must be a value less than the RELP . The relay output will have continuity between its N.C. terminal and COM until
the flow drops below the SETPT for a continuous period of time exceeding the SDLY . At this time, the N .C . connection will open
and the N .O . contact will have continuity to the COM terminal . When the flow has again risen above the RELP for a continuous
period of time, exceeding the RDLY , the relay states will return to their original states . If the latch has been set to ON when the
set point and set delay have been satisfied, the relay will not release until manually reset .
Programming
Page 20 August 2014 CTL-UM-001026-EN-04