Thiết bị hiệu chuẩn YOKOGAWA BT200 BT200-N-00

As a portable terminal, the Model BT200 BRAIN TERMINAL is used in combination with equipment using brain communication for setting, changing, displaying and printing out parameters such as tag number, output mode, and range, through simultaneous communication. It also monitors I/O values and self-check results, sets constantcurrent output, and allows zero adjustments.

FEATURES

Online monitoring and communication: The modulated communication signal does not interrupt the 4 to 20 mA DC signals during communication.

Common to all Yokogawa’s equipment: The Model BT200 BRAIN TERMINAL works with all equipment that uses BRAIN communication.

Easy of use: A large display (21 characters by 8 lines) eases setup and alteration procedures in English prompting
interactive sequences.

Diagnostics/security with error messages

• Self-check function
• Security code protection of setpoints
• Low battery voltage alarm
• Automatic power-off

Printer (BT200-P00): Printer prints out tag numbers and other parameters on the spot.

STANDARD SPECIFICATIONS

Equipment Specifications

Applicable Equipment:

• [Field Instruments]: DPharp ADMAG YEWFLO YTA
• [Signal Conditioner]: Signal Conditioner for CENTUM

Communication Specification: Yokogawa original protocol

• Modulation: Burst modulation
  0: 2400 Hz
  1: Signal without carrier
  Baud rate: 1200bps
• Communication signal:
  host to device: +/- 0.5 V (load resistance 250 Ω)
  device to host: +/- 2 mA

Communication Line:

• [Field Instruments]
  Load resistance: 250 to 600 Ω (including cable
  resistance)
  Load capacitance: 0.22 μF or less
  Load inductance: 3.3 mH or less
  Power line spacing: 15 cm (6 inch) or more (Avoid parallel wiring.)
• [Signal Conditioner]: Use dedicated cable

Line Length:

• [Field Instruments]: Up to 2 km (1.24 mile) (0.75 to 1.25 mm2 instrumentation cable)
• [Signal Conditioner]: 1.1 m with dedicated cable
• Communication Signal Connection: Dedicated cable, 1.1 m long (3.6 ft)