Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
PD2-6300
54
Meter Operation
The meter accepts pulses (e.g. ±40mV to
± 8V), square wave (0-5, 0-12V, or 0-24V), open collector NPN,
PNP, TTL, or switch contact signals and displays these signals in engineering units from -99999 to
999999.
The dual-line display can be customized by the user to operate in such a way as to satisfy a specific
application. Typically, the upper display is used for the process variable; while the lower display is used
for engineering units, custom legend, total, grand total, or set point indication.
The meter can be set up to display the pulse input on the upper display and the Modbus input on the
lower display. The relays and analog output can be programmed to operate from the Modbus PV input.
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 19 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
ENT ER
F3
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