PD2-6262 Helios Large Display Analog Dual-Input Rate/Totalizer Instruction Manual
59
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, 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, the upper display is used to display the
math channel C, while the lower display is used to alternate between displaying input channels A and B.
Additionally, the meter can be set up to display any input or math channel on the upper display and a unit
or tag on the lower display. 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 Key Operation
During operation, the programmable function keys operate according to the way they have been
programmed in the
Advanced Features
– User
menu.
The table above shows the factory default settings for F1, F2, and F3.
Digital Input Operation
Five (5) digital inputs, F4-F8, 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 (COM in
the case of F4, see Digital I/O Connections on page 18 for details), or with an active low signal. During
operation, digital inputs operate according to the way they are programmed in the
Advanced Features
–
User
menu.
MENU
RESET
F1
MAX
F2
ENTER
F3
