Spot supply of Yokogawa BT200 type smart handheld controller (device communicator)
The Yokogawa BT200 smart handheld device (equipment communicator) is a common portable device from Yokogawa Electric Corporation in Japan
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Yokogawa handheld controller
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Detailed introduction
The Yokogawa BT200 smart handheld device (equipment communicator) is a common portable device from Yokogawa Electric Corporation in Japan, using the BRAIN communication protocol. It is often used to set, change, display, and print parameters (such as station number, output mode, range, etc.) for field instruments. The Yokogawa BT200 handheld device can also monitor I/O values and self-diagnostic results, set constant current output, and zero adjustment. When the system is started or maintained in operation, simply connect the device's 4~20mA DC signal line or the dedicated interface of the ESC (signal adjustment communication card) to use the BT200.
Here are the key features of the Yokogawa BT200 BRAIN Terminal:
BRAIN Protocol Communication: Interfaces with Yokogawa field instruments using the BRAIN protocol over a 4–20 mA loop without disrupting analog signals.
Parameter Configuration: Allows setting and changing of tag numbers, output modes, measurement ranges, and damping times.
Device Diagnostics: Displays I/O values, self-check results, and device status for quick troubleshooting.
Zero Adjustment & Calibration: Supports zero-point adjustments and constant current output for calibration tasks.
Data Logging & Printing: Optional built-in printer (BT200-P00 model) enables printing of configuration and calibration data.
Portable & Battery Operated: Lightweight and designed for field use with long battery life.
Multilingual Interface: Supports multiple languages including English and Japanese for broader usability.
1. Technical Parameters:
| Parameter | Description |
|---|---|
| Model Number | BT200 (BT200-P00 includes printer option) |
| Communication Protocol | BRAIN protocol (over 4–20 mA signal line) |
| Power Supply | Four AA alkaline batteries |
| Display | 8-line LCD, dot matrix, backlit |
| Interface | 5-button keypad with menu-based navigation |
| Languages Supported | English, Japanese, others (depending on firmware) |
| Functionality | Configuration, diagnostics, zero adjustment, constant current output |
| Printer Function (Optional) | Thermal printer for data logging (BT200-P00 model only) |
| Operating Temperature | –10°C to +50°C |
| Dimensions | Approx. 100 × 210 × 65 mm |
| Weight | Approx. 600 g (with batteries) |
2. Yokogawa BT200 – FAQ
Q1: What is the BT200 used for?
The BT200 is a handheld communicator for configuring, calibrating, and diagnosing Yokogawa field instruments that use the BRAIN protocol.
Q2: Can the BT200 be used while the instrument is in operation?
Yes. It communicates over the 4–20 mA loop without interrupting the analog signal, allowing live configuration and monitoring.
Q3: Is the BT200 compatible with HART devices?
No. The BT200 is designed specifically for BRAIN protocol devices. For HART communication, Yokogawa recommends using the FieldMate platform.
Q4: How is the BT200 powered?
It operates on four AA alkaline batteries, making it fully portable for field use.
Q5: Can I print configuration data from the BT200?
Yes, but only with the BT200-P00 model, which includes a built-in thermal printer for data logging.
Q6: What happened to the BT200?
The BT200 was officially discontinued on March 31, 2021. Yokogawa now recommends as the replacement solution.
Q7: How do I connect the BT200 to a device?
It connects via the signal loop using terminal boxes, relay terminal blocks, or signal conditioners. Refer to the for detailed instructions.
Q8: What precautions should I take during use?
Avoid connecting to incompatible devices, and be aware that analog output may momentarily fluctuate when first connecting the BT200.
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