Omega Products RX20B-I-M User Manual

RADIO TELEMETRY SYSTEM

Extended Warranty

Program

S

M

FOR STRAIN GAGES, THERMOCOUPLES, AND VOLTAGE SIGNALS

TX20B

Complete

System

$

5550

RX20B-M, receiver with display,
$2350, with TX20B-S1, strain gage
module, $1950, and TX-BCA-100,
clamp assembly, $1250, shown
smaller than actual size.

⻬ Eliminates Cumbersome

Slip Ring Installation

⻬ Does Not Require

FCC License

⻬ Small, Lightweight
⻬ Wireless Sensor Interface
⻬ Battery-Powered or

Induction-Powered
Models Available

OMEGA’s TX20B radio telemetry
system is ideal for transmitting
signals from sensors that are
mounted on rotating shafts. The
TX20B Series miniature transmitters

modulate sensor signals from
thermocouples, voltage transducers,
or strain gage bridge circuits onto
an RF carrier and transmit them to
a stationary receiver. The RX20B
receiver demodulates the signals
and converts them into ±2V analog
output. Two analog output signals
are available simultaneously.
A wideband output provides
frequency response from DC to
1250 Hz. For maximum stability
of the signal, a filtered output is
also available with a 0 to 10 Hz
bandwidth.

TX20B transmitters incorporate
a crystal oscillator that is tuned to
a specific frequency, eliminating the

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OMEGACARESMextended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
covers parts, labor and equivalent loaners.

need for tuning by the operator.
Transmitter frequencies can be
staggered, allowing multiple
transmitters to operate in proximity
with no interference. Multichannel
receivers are available.

Transmitters are small enough to
be taped or strapped to the rotating
shaft, and they can be powered by
a 9V battery. For applications in
which continuous uninterrupted
monitoring is necessary, an
inductively coupled power supply
and transmitter are also available.

The TX20B operates in a band that
does not require an FCC license.

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RADIO TELEMETRY SYSTEM
ORDERING GUIDE AND SPECIFICATIONS

SYSTEM SPECIFICATIONS

ccuracy: ±0.25% FS

A
Non-Linearity: ±0.1% FS
Repeatability: ±0.05% FS
Modulation Type: FM

TRANSMITTER SPECIFICATIONS
Input Types: 120 Ω to 1 kΩ

strain gage bridge, DC voltages,
J or K thermocouples

Bridge Excitation: 5 Vdc
(strain gage only)

Power Source: 9V battery
(included) or induction power

Operating Temp: -40 to 130

°C

(-40 to 266°F)

Zero Temp Drift: 0.02%/°C
Span Temp Drift: 0.02%/°C
Dimensions:

37.5 W x 20.3 H x 17.3 mm D
(1.48 x 0.80 x 0.68")

RECEIVER SPECIFICATIONS
Frequency Response: Wideband,

DC to 1250 Hz; filtered, DC to 10 Hz
Output Ripple: Wideband,

<15 mV; filtered, <5 mV

Dimensions:

89 H x 211 W x 203 mm L
(3.5 x 8.3 x 8")

To order typical battery­powered system:

1. Select transmitter module

2. Select clamp assembly

with 9V battery housing

3. Select receiver

To order typical induction­powered system:

1. Select transmitter module

2. Select clamp assembly with

built-in induction power
supply circuitry

3. Select stationary loop

induction power supply

4. Select receiver for use with

stationary loop induction
power supply

Recommended Reference Book:

Classical Feedback Control with MatLab,

CM-4356, $93.

See Section Y

For Additional Books

CUSTOM-BUILT TO ORDER

To Order (Specify Model Number)

TRANSMITTER MODULES

MODEL NO. INPUT RANGE DESCRIPTION PRICE

TX20B-S1 0.3 mV/V Strain gage transmitter $1950

X20B-S2 1.0 mV/V Strain gage transmitter 1950

T

TX20B-S3 2.0 mV/V Strain gage transmitter 1950

TX20B-S4 3.0 mV/V Strain gage transmitter 1950

TX20B-E1 0.1V Voltage transmitter 1950

TX20B-E2 1.0V Voltage transmitter 1950

TX20B-E3 5.0V Voltage transmitter 1950

TX20B-E4 10.0V Voltage transmitter 1950

TX20B-J1 -17 to 93°C (0 to 200°F) Type J T/C transmitter 1950

TX20B-J2 -17 to 204°C (0 to 400°F) Type J T/C transmitter 1950

TX20B-J3 -17 to 427°C (0 to 800°F) Type J T/C transmitter 1950

TX20B-J4 -17 to 538°C (0 to 1000°F) Type J T/C transmitter 1950

TX20B-K1 -17 to 260°C (0 to 500°F) Type K T/C transmitter 1950

TX20B-K2 -17 to 538°C (0 to 1000°F) Type K T/C transmitter 1950

TX20B-K3 -17 to 816°C (0 to 1500°F) Type K T/C transmitter 1950

TX20B-K4 -17 to 1093°C (0 to 2000°F) Type K T/C transmitter 1950

CLAMP ASSEMBLIES

BATTERY
POWER PRICE INDUCTIVE PRICE DESCRIPTION mm (in)

TX-BCA-100

TX-BCA-125

TX-BCA-150

TX-BCA-175

TX-BCA-200

TX-BCA-250

TX-BCA-300

TX-BCA-400

TX-BCA-500

TX-BCA-600

RECEIVERS

MODEL NO. DESCRIPTION PRICE

RX20B-M Receiver for battery-powered systems $2350

RX20B-I-M Receiver for induction-powered systems 2540

SL20 Stationary loop for induction-powered systems 1890

RX24B-BP 4-channel plug-in receiver backplane 1950

RX28B-BP 8-channel plug-in receiver backplane 2600

RX22 Plug-in receiver module (battery transmitter) 1575

RX22-I Plug-in receiver module (induction transmitter) 1875

Comes complete with 9V battery and operator’s manual.
Ordering Example: TX20B-J1 + TX-BCA-100 + SL20 + RX20B-I-M, complete induction-

powered system for 1" shafts for -17 to 93°C (0 to 200°F) Type J thermocouple,
$1950 + 1250 + 1890 + 2540 = $7630.

$1250

1250

1250

1250

1250

1250

1250

1300

1300

1300

C-42

TX-ICA-100 $1190 Clamp assembly for 25.4 (1) shafts

TX-ICA-125 1190 Clamp assembly for 31.8 (1

TX-ICA-150 1190 Clamp assembly for 38.1 (1

TX-ICA-175 1190 Clamp assembly for 44.5 (1

TX-ICA-200 1190 Clamp assembly for 50.8 (2) shafts

TX-ICA-250 1190 Clamp assembly for 63.5 (2

TX-ICA-300 1190 Clamp assembly for 76.2 (3) shafts

TX-ICA-400 1190 Clamp assembly for 101.6 (4) shafts

TX-ICA-500 1190 Clamp assembly for 127.0 (5) shafts

TX-ICA-600 1190 Clamp assembly for 152.4 (6) shafts

1

) shafts

⁄

4

1

) shafts

⁄

2

3

) shafts

⁄

4

1

) shafts

⁄

2

ACCESSORIES

C