PD2-6262 Helios Large Display Analog Dual-Input Rate/Totalizer Instruction Manual
7
Signal Input
Conditioning
Linear, square root, or programmable
exponent
Multi-Point
Linearization
2 to 32 points for channel A and B
Programmabl
e Exponent
1.0001 to 2.9999
Low-Flow
Cutoff
0-999999 (0 disables cutoff function)
Decimal
Point
Up to five decimal places or none:
d
.
ddddd
,
d
.
dddd
,
d
.
ddd
,
d
.
dd
,
d
.
d
, or
dddddd
Calibration
Range
Input Range
Minimum Span Input 1
& Input 2
4-20 mA
0.15 mA
10 V
0.01 V
An error message will appear if the
input 1 and input 2 signals are too
close together.
Input
Impedance
Voltage ranges: greater than 500 k
Current ranges: 50 - 100
(depending on resettable fuse
impedance)
Input
Overload
Current input protected by resettable
fuse, 30 VDC max.
Fuse resets automatically after fault is
removed.
F4 Digital
Input
Contacts
3.3 VDC on contact. Connect normally
open contacts across F4 to COM.
F4 Digital
Input
Logic Levels
Logic High:
3 to 5 VDC
Logic Low:
0 to 1.25 VDC
Dual Rate/Totalizer
Rate Display
Indication
-99999 to 999999, lead zero blanking.
Total Display
& Total
Overflow
0 to 999,999; automatic lead zero
blanking. Up to 999,999,999 with total-
overflow feature. “
oF
” is displayed to
the left of total overflow and
▲ LED is
illuminated.
Total Decimal
Points
Up to five decimal places or none:
d
.
ddddd
,
d
.
dddd
,
d
.
ddd
,
d
.
dd
,
d
.
d
, or
dddddd
Total decimal point is independent of
rate decimal point. Channel A and B
decimal points programmed
independently.
Dual Totalizer
Calculates total for channels A and B
based on rate and field programmable
multiplier to display total in
engineering units. Time base must be
selected according to the time units in
which the rate is displayed. Channel A
and B totalizer parameters
programmed independently.
Totalizer
Rollover
Totalizer rolls over when display
exceeds 999,999,999. Relay status
reflects display.
Total
Overflow
Override
Program total A or B total reset for
automatic with 0.1 second delay and
set point 1 for 999,999
Totalizer
Alarm
Presets
Up to eight, user selectable under
setup menu. Any set point can be
assigned to channel A or B total or
grand total (or C) and may be
programmed anywhere in the range of
the meter for total alarm indication.
Total &
Grand Total
Reset
Via front panel button, external
contact closure on digital inputs,
automatically via user selectable
preset value and time delay, or
through serial communications.
Channel A and B total and grand total
reset parameters programmed
independently.
Total Reset
Password
Total and grand total passwords may
be entered to prevent resetting the
totals or grand totals from the front
panel.
Non-
Resettable
Total
The grand totals can be programmed
as non-resettable totals by entering
the password “050873”. Both
channels are set to non-resettable
when this password is entered.
Caution!
Once the Grand Totals have
been programmed as “non-
resettable” the feature
cannot be disabled.
Programmabl
e Delay
On Release
0.1 and 999.9 seconds; applied to the
first relay assigned to total or grand
total.
If the meter is programmed to reset
total to zero automatically when the
preset is reached, then a delay will
occur before the total is reset.
Relays
Rating
2 or 4 SPDT (Form C) internal and/or
4 SPST (Form A) external; rated 3 A
@ 30 VDC and 125/250 VAC resistive
load; 1/14 HP (
≈
50 W) @ 125/250
VAC for inductive loads
Noise
Suppression
Noise suppression is recommended
for each relay contact switching
inductive loads; see page 15 for
details.
Deadband
0-100% of span, user programmable
High or Low
Alarm
User may program any alarm for high
or low trip point.
Unused alarm LEDs and relays may
be disabled (turn off).
!
