Dwyer RTI - Manual (Page 2)

TAbLE Of cOnTEnTS
General Information
General Information, Features, Specifications ....................................................................................................page 1
Installation
Wall Mount, Meter Mount, Panel Mount .............................................................................................................page 2
Connections, RTI (Option -DRO), -DRO Relay Board Specifications ...................................................................page 3
connection Diagrams
RTI, RTI-W-VPS .......................................................................................................................................................page 4
RTI-X-DRO, RTI/EFS2 or IEFS Magmeter .............................................................................................................page 5
RTI/EFS2 or IEFS Magmeter/Dual Power Supply ...............................................................................................page 6
(Quick) Settings
Quick Settings Overview .......................................................................................................................................page 7
Settings
K-Factor, Reading in Other Units ..........................................................................................................................page 8
Set K, Set P/Flow Alarm, Set 20 mA, Set Decimal Point, Set Time Unit ...........................................................page 8
Operation
Resettable Totalizer; 4 to 20 mA Output, Pulse Output ......................................................................................page 9
Troubleshooting
Problems, Probable Causes, to Try ................................................................................................................back page
TAbLES AnD DIAGRAMS
Features, Specifications .......................................................................................................................................page 1
Meter Mount, Panel Mount ..................................................................................................................................page 2
Dual Relay Board Specifications ..........................................................................................................................page 3
Connections: RTI, RTI-W-VPS ................................................................................................................................page 4
Connections: RTI-X-DRO, RTI/EFS2 or IEFS Magmeter .......................................................................................page 5
Connections: RTI/EFS2 or IEFS Magmeter/Dual Power Supply ........................................................................page 6
Quick Settings Overview .......................................................................................................................................page 7
K-Factor ..................................................................................................................................................................page 8
Resettable Totalizer ..............................................................................................................................................page 9
Troubleshooting Problems, Probable Causes, to Try .....................................................................................back page
page 1
GEnERAL InfORMATIOn
The Series RTI flow displays are microcontroller-based indi-
cator/transmitters that show flow rate and total and provide
output signals. The RTI is powered by external DC voltage and
has both pulse and 4 to 20 mA analog outputs. When the RTI
is being used in the 4 to 20 mA mode, it is a “two-wire” or
“loop-powered” device, meaning that the 4 to 20 mA output
signal doubles as its power supply.
The addition of a dual-relay output board allows for certain
applications requiring contact output isolation (e.g., certain
metering pumps and water treatment controls). Dual solid
state relays provide exactly the same pulse output as the
standard unit, and each can signal one external device. A
non-resettable total is also available. The RTI can be ordered
in a plastic enclosure with a 115 VAC power supply for use
with mechanical meters, or with a built-in 115 VAC/12 to 24
VDC dual power supply for magmeters.
The RTI can be factory-mounted on the meter (-M) or remotely
wall mounted with the brackets provided (-W). The RTI is also
available as a panel mount (-P) with an open back for easy
installation in the user’s own electrical enclosure. Most RTI’s
can be converted from wall-to-meter or meter-to-wall mount
configurations after installation if needed.
Housings for the -W and -M models are rugged cast aluminum,
potted and gasketed for maximum environmental protection.
A membrane keypad allows settings to be changed without
removing the cover. (Password protection, a standard feature,
can be used to prevent settings from being changed.)
**Includes password protection for tamper prevention
when needed
Lower Housing
Setup Keys**
Cover Screws
Electronics Module
Wall-Mount Brackets
Strain Relief
Display
fEATuRES
**Includes password protection for
tamper prevention when needed
SpEcIfIcATIOnS*
power
Display Rate
Total
Outputs current Sinking pulse
Analog
pulse Output Range
Input
Input Range
K-factor Range
flow Alarm Output Range
Operating Temperature
Environmental
RTI
*Specifications subject to change
12 to 30 VDC, 4mA (4 to 20 mA when loop-powered)
6-digit autorange, 1/2" character height
8-digit, 5/16" character height
Scaled Pulse output (0.1 sec duration 6.1 Hz max), or (High Alarm output or Low Alarm output)
Sensor pass-through Pulse output (unscaled)
4 to 20 mA loop; 24 to 30 Vdc
0.1 - 9999999.9 units/pulse
5V pulse or contact closure
1.0 - 1,500 pulses/second
.001 - 99999.999
.01 - 999999.99
-30 to 65˚ C (-22 to 148˚ F)
NEMA 4X, IP66