Intelligent temperature transmitter
Temperature range: -200~1300℃
Programmable Thermocouple PT100 to 4-20mA Temperature Transmitter
Installation guide:
The BRT TCH1 is a low-cost, precision, programmable temperature transmitter featuring a 2-wire 4-20mA output. It accepts a variety of temperature signals, including RTD and thermocouple inputs, with excellent compatibility and high accuracy. The transmitter allows for the programming and configuration of input sensor types, temperature ranges, and other parameters via software on a PC connected through a programming wire.
This device supports various signal types such as RTD PT100, CU50, CU100, and thermocouples. Its output is adjusted by a chip rather than a potentiometer, ensuring greater stability and an accuracy grade of better than 0.2%. Additionally, the intelligent temperature transmitter utilizes integrated component design to meet diverse industrial application requirements.
Electrical Link Schematic:
Main Features:
- 2-wire 4-20 mA loop signal output.
- Programmable input for RTD PT100, Cu100, CU50, and thermocouples.
- High linearity and low error in signal conversion.
- Software-configurable input temperature ranges and sensor types.
- Wide power supply range (12-35VDC) with polarity reverse protection.
- High accuracy: 0.5% (TC input) and 0.2% F.S. (RTD input), with low temperature drift and long lifespan.
- Internal cold-junction compensation.
- Chip-based output adjustment for enhanced stability.
- HART function not available.
- Compatible with international standard head-mounted installations.
- Calibrated before shipping; offers a cost-effective alternative to other brands.
Typical Applications:
- Data acquisition with RTD and thermocouple (TC) temperature sensors.
- 2-wire 4-20mA analog output, typically mounted in international standard DIN Form B connection heads for temperature sensors.
- Conversion of various signals into a 4-20mA output.
- Input options include thermal resistance (RTD) and thermocouple (TC) signals, outputting a 4-20mA current signal.
- Supports 4 types of RTD inputs and 8 types of thermocouples, among other universal signal inputs.
- Used for temperature sensor signal conversion and transmission.
- Linear conversion and regulation of RTD and thermocouple signals.
The temperature transmitter supports a variety of temperature signal inputs:
Model | Type | Measure temperature range |
RTD | Pt100 | -200-800℃ |
Cu50 | -50-150℃ |
Cu100 | -50-150℃ |
Pt1000 | -50-200℃ |
Thermocouple | B | 300-1800℃ |
E | 0-1800℃ |
J | 0-1200℃ |
K | 0-1300℃ |
N | -200-1300℃ |
R | 0-1700℃ |
S | 0-1700℃ |
T | -200-400℃ |
W325 | 0-2300℃ |
W526 | 0-2300℃ |
Technical Details
| Parameter | Specification |
| Signal input | Thermocouple or 2-wire RTD, 3-wire RTD, etc. |
| Output | 2-wire 4-20mA signal, current limit: min. 3.8mA, max 20.3mA |
| Power supply | 12-35VDC, 0.2mA excitation current |
| Measuring Accuracy | Better than 0.5% TC input, better than 0.2% RTD input |
| Temperature Drift | ≤25ppm/℃ F.S. |
| Excitation current | 0.2±0.01mA |
| Load capacity | 250Ω or 500Ω |
| Protection circuit | Reverse polarity connection protection |
| Software programmable | Yes, English software |
| Support HART | Not supported |
| Operating temperature | -30-+80℃ |
| Storage temperature | -40-+120℃ |
| Material | PA66 ABS |
| Installation | M4 x 2 screw, standard head-mounted |
| Dimension | 44 x 33 x 24mm (L x W x H) |
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