EATON MTL5546 ISOLATING DRIVER for 4–20mA HART valve positioners MTL 5546

EATON MTL5546 ISOLATING DRIVER for 4–20mA HART valve positioners with line fault detection.

The MTLx546 accepts a 4/20mA floating signal from a safe-area controller to drive a current/pressure converter (or any other load up to 800Ω) in a hazardous area. For HART valve positioners, the module also permits bi-directional transmission of digital communication signals. Process controllers with a readback facility can detect open or short circuits in the field wiring: if these occur, the current taken into the terminals drops to a preset level. The MTL4546C and the MTLx546Y are very similar to the MTLx546 except that they provide open circuit detection only (i.e. no short-circuit detection).

SPECIFICATION

• Number of channels: One
• Location of I/P converter: Zone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A, hazardous location
• Working range 4 to 20mA
• Digital signal bandwidth 500Hz to 10kHz
• Maximum load resistance 800Ω (16V at 20mA)
• Minimum load resistance 90Ω (short-circuit detection at < 50Ω)
• Output resistance > 1MΩ
• Under/over range capability
  • Under range = 1mA
  • Over range = 24mA (load ≤ 520Ω)
• Input and output circuit ripple < 40µA peak-to-peak
• Transfer accuracy at 20°C Better than 20µA
• Temperature drift < 1.0µA/°C
• Input characteristics
  • Field wiring state
  • Normal < 6.0V
  • Open-circuit < 0.9mA
  • Short-circuit < 0.9mA
• Response time: Settles within 200µA of final value within 100ms
• Communications supported: HART
• LED indicator Green: power indication
• Maximum current consumption (with 20mA signals into 250Ω load) 35mA at 24V dc
• Power dissipation within unit (with 20mA signals into 250Ω load) 0.8W at 24V
• Safety description Uo=28V Io=93mA Po=651mW Um = 253V rms or dc

New, in factory box.

Typical delivery time:

  Economy shipping (Russian Post) Standard Shipping (EMS Express Post) Europe 14-30 days, in rare cases up to 90 days 7-20 days, in very rare cases up to 70 days United States 20-60 days, in rare cases up to 90 days 14-30 days, in rare cases up to 70 days Canada 14-30 days, in rare cases up to 90 days 7-30 days, in rare cases up to 70 days Asia, India, Africa 14-40 days, in rare cases up to 90 days 7-20 days, in very rare cases up to 70 days Australia and Oceania 14-40 days, in rare cases up to 90 days 10-25 days, in rare cases up to 70 days South and Central America 20-40 days, in rare cases up to 90 days 14-30 days, in rare cases up to 70 days Other countries 20-60 days, in rare cases up to 90 days 10-30 days, in rare cases up to 70 days