Recordall® Transmitter Register (RTR)
Model Dual RTR® for Recordall Compound Meters
DESCRIPTION
The Dual Recordall Transmitter Register (RTR®) is designed for use
with all Recordall Compound Meters to provide output compatible
with ORION®, GALAXY®, Itron® ERT® and Badger Meter® approved
technologies. Each unit incorporates a local six digit mechanical
odometer register.

OPERATION
The RTR provides a digital output based on Badger Meter’s
patented piezoelectric solid-state switch. This output has the
characteristics of an open drain Field Effect Transistor (FET) and has
no electrical contacts to stick, wear or corrode.

RESOLUTION
Digital output from the RTR typically has resolution of 1/10th of
the register test circle (resolution may vary in some cases). The
electronic resolution table in this brochure lists minimum output
resolution for all Recordall meter applications.

MOUNTING
The RTR is compatible with Recordall compound meters.

MAGNETIC DRIVE
Direct drive high-strength magnetic coupling through the meter
body to the wetted magnets provides reliable and dependable
register coupling.

SEALED REGISTER
The RTR register consists of two separate (one low flow, one high
flow) six-digit, straight-reading mechanical odometer totalizers
(located in the six o’clock position), 360° test circles with sweep
hands and flow finders to detect leaks. The register gearing is
self-lubricating thermoplastic to minimize friction and provide
long, reliable life. Permanent sealing eliminates moisture, dirt, and
other contaminants. Each odometer has a separate leak detector.

TAMPER-PROOF FEATURES
Customer removal of the RTR can be prevented with the use of the
tamper seal screw.

CONSTRUCTION
The housing of the RTR is constructed of a tempered glass lens
top and a stainless steel bottom. Internal construction materials
are thermoplastics for long-life and high reliability. The integrity of
the adhesive seal joining the glass top to the metal base provide
unmatched protection in water meter applications. A corrosion and
tamper-resistant seal screw is provided to secure the RTR to the
meter. The cover and shroud assembly are thermoplastic material.
RCS-DS-01300-EN-02 (November 2014)

TEMPERATURE
Operating range is –40…120° F (–40…49° C). The water meter
should not be subjected to temperatures below freezing.

MOISTURE
The RTR achieves true water resistance due to the adhesive
technology used in the sealing process. Leak rates less than
10…6 cc/sec., as tested by a helium mass spectrometer, are
comparable to a true hermetic seal. Due to this unique sealing
process, the RTR exceeds all applicable requirements of AWWA
Standard C707 regarding moisture intrusion. Register fogging and
condensation are no longer an issue.

WIRE CONNECTIONS
Compound RTRs use submersible, reusable connectors. A
protective cap is provided when used as a local register.

SPECIFICATIONS
Transmitter/Register

Two straight-reading, permanently
sealed, magnetic drives
Unit of Measure
U.S. gallons, cubic feet, cubic meters,
clearly identified on register face
Number Wheels
Two sets of six with 3/16" high numerals
Test Circle
360° circle with ten major increments
with ten divisions each
Humidity
5…100% condensing
Temperature
–40…120° F (–40…49° C) (RTR)
Output Signal Characteristics NPN open collector transistor (FET)
Visual Resolution
1/100th of test circle
Electronic Resolution
1/10th of test circle
On-State Resistance
7.5 Ohms @ 77° F (25° C)
Power Source
External
Maximum Switching
30V DC @ 1 mA @ 77° F (25° C)
Maximum Power Dissipation 0.4 Watts continuous @ 77° F (25° C)

Product Data Sheet