Helios PD2-6262 Dual Analog Input Rate/Totalizer
Instruction Manual
56
Meter
Operation
The meter is capable of accepting two input channels
(A and B) of either current (0-20 mA, 4-20 mA) or
voltage signals (0-5 V, 1-5 V, 0-10 V,
10 V) and
displaying these signals in engineering units from -
99999 to 999999 (
e.g.
a 4-20 mA signal could be
displayed as -50.000 to 50.000). A totalizer can be
programmed to count the scaled engineering units,
interpreting it as count per second, minute, hour, or
day. The scaled rate and total for each channel can
be displayed on the top or bottom displays.
A math function channel (C) is available to perform
operations on channel A and B rates or totals, with
adder and factor constants, and display the results.
Engineering units or tags may be displayed with these
three channels.
The dual-line display can be customized by the user.
Typically, display line 1 is used to display the math
channel C, while line 2 is used to alternate between
displaying input channels A and B rate or total.
Additionally, the meter can be set up to display any
input or math channel on line 1 and a unit or tag on
line 2. The relays and analog output can be
programmed to operate based on any input or math
channel.
Button Operation
Button
Symbol
Description
Press to enter or exit Programming
Mode, view settings, or exit max/min
readings
Press to reset max/min readings or
other parameter/function assigned
through the
User
menu
Press to display max/min readings or
other parameter/function assigned
through the
User
menu
Press to acknowledge relays or other
parameters/function assigned through
the
User
menu
Function Keys Operation
During operation, the programmable function keys
operate according to the way they have been
programmed in the
Advanced Features
– User
menu.
Programmable Function Keys User Menu
The table above shows the factory default settings for
F1, F2, and F3.
Digital Inputs Operation
Five (5) digital inputs, F4, DI-1 to DI-4, come standard
on the meter. These digital inputs are programmed
identically to function keys F1, F2, and F3. The inputs
are triggered with a contact closure to +5 in the case
of digital inputs 1-4 or with an active high signal, see
is triggered with a contact closure to COM or with an
active low signal. During operation, digital inputs
operate according to the way they are programmed in
the Advanced Features
– User menu. See
Programmable Function Keys User Menu
on
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by
the process can be displayed either continuously or
momentary:
1. Display briefly by assigning to the F1-F3
function keys or to the digital inputs in the
User
menu.
2. Display continuously by assigning either
display to max/min through the
Display
menu.
Any of the F1-F3 function keys (buttons) and the
digital inputs can be programmed to reset the max &
min readings. The meters are set at the factory to
display the max/min reading by pressing the Up
arrow/F2 button and to use the Right arrow/F1 button
to reset the max/min.
To display max and min channel A reading using
function key with factory defaults:
1. Press Up arrow/F2 button to display minimum
reading of channel A since the last reset/power-
up. The display will then display the maximum
reading of channel A since the last reset/power-
up.
2. To reset max/min press Right arrow/F1 button.
The max & min displays are reset to actual
values.
3. Press Menu to exit max/min display reading.
MENU
MENU
RIGHT
RESET
F1
UP
MAX
F2
ACK
ENTER
F3
