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RTI2 INSTRUCTIONS
Dwyer Instruments, Inc. • 219.879.8868 • www.dwyer-inst.com
TABLES AND DIAGRAMS
GENERAL INFORMATION
*Internal power supply is available for the wall mount option only.
Features
The RTI2 flow computer is a microcontroller-based indicator/
transmitter that interfaces with pulse output flow sensors to
compute and display flow rate, flow total, and also generate
output signals representing flow. The RTI2 has two scaled
pulse outputs. Galvanic isolation is provided for most pulse
outputs (see table.)
The RTI2 is a “two-wire” or “loop powered” device, meaning
that it is powered by the 4-20 mA loop circuit itself. An optional
internal AC power supply* is available for the RTI2 with dual
24 and 12VDC outputs to power both the loop and sensors
requiring more power than the loop can supply.
Pulse and 4-20mA analog outputs can be used to signal
external devices, e.g. certain metering pumps and water
treatment controls. Alternatively, one or more pulse outputs
can be configured as alarm outputs. These flow computers
can be password protected to prevent resetting the total or
changing configuration settings.
The RTI2 meter is available in wall and meter mount
configurations. The RTI2 can also be panel mounted. Some
configurations can be converted from wall to meter or meter
to wall after installation if needed. Consult factory for details.
Lower Housing
Setup Keys**
Electronics Module
Wall-Mount Brackets
Strain Relief
Display
** Includes password protection for tamper prevention when needed
Protective Cover (Optional)