Precision Digital PD650 - Manual (Page 12)

Model PD650 Large Display Process Meter Instruction Manual
12
TOTAL
CONVERSION
FACTOR Programmable from 0.00001 to 59999
TOTALIZER Calculates total based on rate and field programmable total
conversion factor to display total in engineering units. Time
base must be selected according to time units in which rate is
displayed.
TOTALIZER
ROLLOVER Totalizer “rolls over” when display exceeds 999,999. Relay
status reflects display.
TOTALIZER
PRESETS Up to four, user selectable under setup menu Setup . Any set
point can be assigned to total and may be programmed
anywhere in the range of the meter.
PRESET OFFSET Relays assigned to total can be programmed to trip at any
point below the next relay’s preset value.
PROGRAMMABLE
DELAY ON
RELEASE If the meter is programmed to reset total to zero automatically
when the highest preset is reached, then a delay will occur
before the total relays reset. This delay can be programmed
anywhere from 1 to 999 seconds.
PRIORITY BATCH
PROGRAMMING This feature allows the user to quickly change preset values
without going into the main menu by holding the ENTER
button for more than 3 seconds.
TOTAL RESET Via front panel ENTER button, external contact closure, or
automatically via user selectable preset value.
TOTAL RESET
LOCKOUT Meter may be programmed so total cannot be reset from front
panel.
Options
Relays
RATING 2 or 4 SPDT (Form C); rated 2 A @ 30 VDC or 2 A @
250 VAC resistive load;
1
/
14
HP @ 125/250 VAC for inductive
loads. Built-in suppression.
ASSIGN TO
PROCESS/RATE
OR TOTAL Any relay may be assigned to process/rate or total.
BUILT-IN
SUPPRESSION A built-in suppressor (snubber) to prolong the life of the relays
protects each relay contact. The suppressor provides a degree
of protection against electrical noise caused by inductive
loads. Suppressor value: .01 µF/470
Ω, 250 VAC.
DEADBAND 0-100% of full scale, user selectable
HIGH OR LOW
ALARM User may program any alarm for a high or low trip point.
RELAY
OPERATION Latching or non-latching