PD4-6624 & PD4-6628 Loop-Powered Flow Rate/Totalizers
Instruction Manual
15
Input
Input
4-20 mA
Accuracy
±0.02% of span ±1 count,
Square root and
programmable exponent: 10-100% FS
Voltage Drop
2.1 V maximum
Equivalent
Resistance
10
5 Ω @ 20 mA
Input Overload
Over current protection to 1 A maximum
Over voltage protection to 30 VDC max
(between mA+ and mA-)
Temperature
Drift
25 PPM/°C from -40 to 75°C ambient
Function
Linear (2-32 points), square root, or
programmable
exponent
PV2: Linear (2-32 points) or round horizontal
tank (If total is disabled and PV2 is enabled)
Low-Flow Cutoff
0.1 to 999,999 or disable. Point below at
which the display always shows zero.
HART
Transparency
The meter does not interfere with existing
HART communications; it displays the
4-20 mA primary variable and it allows the
HART communications to pass through
without interruption. The meter is not
affected if a HART communicator is
connected to the loop. The meter does
not display secondary HART variables.
Rate/Totalizer
Rate Display
Top display: -9999 to 99999;
Bottom display: -9,999,999 to 99,999,999
(with commas)
Total & Grand
Total Display
Top display: 0 to 99999;
Bottom display: 0 to 99,999,999
(with commas)
13-Digit Total &
Grand Total
Up to 9,999,999,999,999 using both lines
with 13-digit total feature enabled.
Total Decimal
Point
Up to four decimal places on top, up to
seven decimal places on bottom. Total
decimal point is independent of rate
decimal point.
Totalizer
Calculates total based on rate and rate
units to display total in engineering units. A
custom factor must be programmed if using
custom defined units.
Time Base
Seconds, Minutes, Hours, Days
Totalizer
Rollover
Totalizer rolls over when display exceeds
99,999,999 (9,999,999,999,999 if 13-digit
limit enabled). Relay status reflects display.
Total & Grand
Total Reset
Via front panel button, external contact
closure on digital input, or MeterView XL.
Total & Grand
Total Reset
Passwords
Total and grand total passwords may be
entered to prevent resetting the total or
grand total unless a password is entered.
Non-Resettable
Grand Total
Grand total reset may be disabled through
the meter interface. Grand total reset may
be permanently disabled by selecting
YES
at the
PERMLOCK
menu.
• Once the Grand Total has been programmed as
“non-resettable” the feature
CANNOT
be disabled.
Non-Volatile
Memory
Total and Grand Total values are stored in
non-volatile memory for a minimum of ten
years if power is lost.
Batch Control
Methods
Automatic or Manual,
count up or count down
Manual Batch
Start
Pressing F1 function key starts the batch
Manual Batch
Pause/Stop
Pressing F3 once pauses the batch,
pressing it twice cancels the batch
Automatic
Batching
The Loop can be used as an
automatic batch controller where batches
run continuously without operator input
Batching Relay
Operation
Single or dual-relay batching with optional
preclose for two-stage operation
Batch Preset
Set via F2 function key anywhere between
0.0001 to 99,999 based on batch total
decimal point. If batch total is assigned to
bottom, the preset can be up to 8 digits.
Batch Preclose
For two-stage batch application, a preclose
value can be set to close the main flow line.
Automatic Batch
Restart Delay
1 to 9,999 seconds. The batch will
automatically restart after completion
of the last batch.
