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Model-TBU-00
Temp Transmitter for Process Control – Configurable 4-20 mA Output, Micro-USB
- Configurable measurement range
- Standard temperature sensor head enclosure mounting
- Pt100 connection for 2, 3, or 4 wires
Model-TBU-00
From
$
183.10
Product Overview
- Accuracy ± 0.1 %
- Current Output 4 to 20 mA
- Input Note Thermocouples J, K, R, S, T, N, E, and B; 2, 3, or 4-wire Pt100 RTD, 2 or 3-wire Pt1000 RTD, 2-wire NTC thermistor, or 0-50 mV voltage. RTD: 238 to 752°F, Thermocouple: 32 to 1202 °F
- Measurement Type Thermocouple, RTD, Thermistor, Voltage
- Number of Wires 2, 3, 4
- Operating Temperature, Max 185 °F
- Operating Temperature, Min -40 °F
- Output Detail Linearized 4-20 mA, 2-wire or 20-4 mA loop powered
- Output Signal Current
- Response Time 1.6 s
- Response Time Note 1.6 s, typical.
- Series ID Model-TBU-00
- Supply Power Type DC
- Supply Voltage 10 to 35 Vdc
- Temperature Drift <± 0.16%/25°C
- Temperature Input Range 32 to 1202 °F
- Voltage Accuracy ± 0.13%
- Voltage Input Range 0 to 50 mV
- Weight 40 g
Supported Applications
The Dwyer Model TBU-00 is a high precision temperature transmitter designed to mount in most temperature sensor instrument enclosures. It serves as a universal input signal conditioner for process control applications, reducing inventory requirements by supporting multiple sensor types through a single device.
- Temperature measurement using thermocouples (Types J, K, R, S, T, N, E, and B)
- Resistance Temperature Detector (RTD) inputs: 2, 3, or 4 wire Pt100; 2 or 3 wire Pt1000
- NTC thermistor input (2 wire)
- Voltage measurement from 0 to 50 mV
Operating Conditions & Performance
The transmitter operates within an ambient temperature range of -40°F to 185°F (-40 to 85°C). It requires a power supply between 10 and 35 VDC. The typical response time is 1.6 s, with a temperature drift specification of < ±0.16% / 25°C.
Accuracy varies by input type as documented in the series specifications:
- Voltage (0 to 50 mV): ±0.1% FS
- Thermocouples J, K, R/S, T, N, E, B: ±0.1% FS
- Pt100/Pt1000 RTDs: ±0.13% FS
- NTC Thermistor: ±0.3°C
Configuration Options
The Model TBU-00 offers configurable parameters to match specific sensor and process requirements.
Sensor Input Configuration
The universal input accepts the following configurations:
- Thermocouples: J, K, R, S, T, N, E, B
- Pt100 RTD: 2, 3, or 4 wire connections
- Pt1000 RTD: 2 or 3 wire connections
- NTC Thermistor: 2 wire connection
- Voltage: 0 to 50 mV range
Output and Power Options
The output signal is configurable via software:
- Linearized 4-20 mA (direct acting)
- Reverse 20-4 mA loop powered configuration
- Transmitter type: 2, 3, or 4 wire operation
Configuration and Physical Attributes
The device features a micro-USB port for easy configuration and calibration in the lab or field. The physical dimensions are 13/16 [20.5] height by 1-23/32 [43.5] diameter, with a weight of 1.4 oz (40 g). It carries CE approval.
Key Product Differences
The Model TBU-00 is factory set to Pt100 Ω RTD, 0 to 100°C, direct acting by default. Users can reconfigure the input type, measurement range, and calibration using configuration software connected via the micro-USB port.
PDFs & Manuals
Software & Drivers
Show Ratings & Reviews
Rated 5 out of
5
by
Jutsin from
Shipping was very fast
quickly meet our project needs,very good product..
Date published: 2026-02-23
Do these units have cold junction compensation onboard?
Hello,
The TBU series has cold junction compensation for all thermocouples sensors
The other sensor types (Pt100, P1000 and NTC) are readings directly from the sensor and are not affected by the Seebeck effect (The Seebeck effect is the creation of an electric voltage when two different conductors or semiconductors have a temperature difference between their connected ends). Cold junction compensation just make sense for Thermocouples because of their construction (2 different semiconductors).
Date published: 2026-09-15
