Omega Products TX33 User Manual
N-10
N
Loop-powered RTD Input
In-Head Programmable
Transmitter
⻬ Multi-Ranges Selectable
⻬ Temperature Linearized
⻬ Low Temperature Drift
⻬ Easy Calibration
⻬ Competitive Pricing
The TX33 is an analog, nonisolated, 2-wire head-mounted
temperature transmitter that
converts the RTD input into a
proportional, linear, and highly
accurate 4 to 20 mA output current
in a variety applications such as
process control, automation system,
and energy source management.
The TX33 performs by means of
a 6 dip-switch array for the coarse
range setting, and two multi-turn
potentiometers (Zero and Span)
which are used for the final finetuning. The TX33 is housed in a
metal enclosure with plastic top
cover, fitting into DIN B connection
heads providing excellent RFI
immunity. The TX33 accepts low
level signal from RTD, filtered,
amplified, and converter to process
current to reduce susceptibility
transients and noise operations and
allow the same two wires to carry
the transmitter power and output
current signal simultaneously.
TX33
$
95
Specifications
(VLOOP = 24 Vdc, TAMB = 23 ±2°C,
R
LOAD =250 Ω)
Output: 4 to 20 mA; Upscale < 25 mA;
Downscale < 3.0 mA
Loop Power: 10 to 32 Vdc. Reverse
polarity protected,
Input RTD: Pt100, 2- or 3-wire DIN.
43760, BS1904 characteristics
Max Sensor Wire resistance:
30 Ω/wire
Supply Voltage Effect: ±0.01% of
span/Volt
Temperature Coefficient: ±0.01% of
span/°C(200°C measurement range)
Note: The DIP-switch is protected by a small
tip which has to be moved before setting
S1=ON, ZERO Range: -50 ~ 0 °C
S1=OFF, ZERO Range: 0 ~ +50 °C
DIP-Switch Setting
SPAN
S2 S3 S4 S5 S6 (°C)
OFF OFF OFF ON ON 50
OFF OFF ON OFF ON 100
OFF ON OFF ON OFF 150
ON OFF OFF OFF OFF 200
Measurement Range
Table 1: Span Setting
Linearity Error: ±0.15% of span ±0.1°C
Repeatability: ±0.01 % of span
Load Capability: 50 x (loop power-10) Ω
Input Zero Range: -50 to 50°C,
(-58 to 122ºF) adjustable
Span: 50 to 200°C selectable; see table 1
Fine Adjustment: 5% of ZERO
and SPAN
RFI Effect (5W, 470 MHz):
< ±10% of span
Response Time (0 to 90%): 200 ms
Housing Material: Polycarbonate,
UL94-V0 grade
Connection: M3 Screw, AWG 14-22
Operation Environment: -40 to 85°C;
(-40 to 185ºF) 5 to 85 %, non-condensing
Dimensions: 45 Dia. x 20 mm H (1.77 x 0.79")
Weight: 50 g (1.8 oz)
TX33, $95,
shown actual size.
Wiring diagram
Dimensions: mm (in)
Note: For 2-wire RTD input, terminal 2 and 3 must be shorted together. When changing the
span by DIP-switch settings, the transmitter should be re-calibrated for best accuracy. Unless
specified, the TX33 is calibrated 200°C before shipping.
Adjustments
Connect signal source (calibrator) to the unit, power on warm up 5 minutes or more.
A: Set the calibrator to the desired low temperature (4 mA point) and adjust the
potentiometer ZERO to get Iout = 4 mA.
B: Set the calibrator to the desired high temperature (20 mA point) and adjust the
potentiometer SPAN to get Iout = 20 mA.
C: Repeats steps A & B once, if necessary for best accuracy
To Order
(Specify Model Number)
Model No. Price Description
TX33 $95 Programmable transmitter
AVAILABLE FOR FAST DELIVERY!
Comes with operator’s manual.
Ordering Example: TX33, programmable transmitter, $95.
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
EPG05
www.omega.com
UNITED KINGDOM
www. omega.co.uk
Manchester, England
0800-488-488
UNITED STATES
www.omega.com
1-800-TC-OMEGA
Stamford, CT.
CANADA
www.omega.ca
Laval(Quebec)
1-800-TC-OMEGA
GERMANY
www.omega.de
Deckenpfronn, Germany
0800-8266342
Karviná, Czech Republic
FRANCE
www.omega.fr
Guyancourt, France
088-466-342
CZECH REPUBLIC
www.omegaeng.cz
596-311-899
BENELUX
www.omega.nl
Amstelveen, NL
0800-099-33-44
More than 100,000 Products Available!
Temperature
Calibrators, Connectors, General Test and Measurement
Instruments, Glass Bulb Thermometers, Handheld Instruments
for Temperature Measurement, Ice Point References,
Indicating Labels, Crayons, Cements and Lacquers, Infrared
Temperature Measurement Instruments, Recorders Relative
Humidity Measurement Instruments, RTD Probes, Elements
and Assemblies, Temperature & Process Meters, Timers and
Counters, Temperature and Process Controllers and Power
Switching Devices, Thermistor Elements, Probes and
Assemblies,Thermocouples Thermowells and Head and Well
Assemblies, Transmitters, Wire
Flow and Level
Air Velocity Indicators, Doppler Flowmeters, Level
Measurement, Magnetic Flowmeters, Mass Flowmeters,
Pitot Tubes, Pumps, Rotameters, Turbine and Paddle Wheel
Flowmeters, Ultrasonic Flowmeters, Valves, Variable Area
Flowmeters, Vortex Shedding Flowmeters
pH and Conductivity
Conductivity Instrumentation, Dissolved Oxygen
Instrumentation, Environmental Instrumentation, pH
Electrodes and Instruments, Water and Soil Analysis
Instrumentation
Data Acquisition
Auto-Dialers and Alarm Monitoring Systems,
Communication Products and Converters, Data
Acquisition and Analysis Software, Data Loggers
Plug-in Cards, Signal Conditioners, USB, RS232, RS485
and Parallel Port Data Acquisition Systems, Wireless
Transmitters and Receivers
Pressure, Strain and Force
Displacement Transducers, Dynamic Measurement
Force Sensors, Instrumentation for Pressure and Strain
Measurements, Load Cells, Pressure Gauges, Pressure
Reference Section, Pressure Switches, Pressure Transducers,
Proximity Transducers, Regulators,
Strain Gages, Torque Transducers, Valves
Heaters
Band Heaters, Cartridge Heaters, Circulation Heaters,
Comfort Heaters, Controllers, Meters and Switching
Devices, Flexible Heaters, General Test and Measurement
Instruments, Heater Hook-up Wire, Heating Cable
Systems, Immersion Heaters, Process Air and Duct,
Heaters, Radiant Heaters, Strip Heaters, Tubular Heaters
click here to go to the omega.com home page
Loading...