EATON MTL4575 TEMPERATURE CONVERTER THC or RTD input + Alarm

MTL4575 TEMPERATURE CONVERTER THC or RTD input + Alarm

The MTLx575 converts a low-level dc signal from a temperature sensor mounted in a hazardous area into a 4/20mA current for driving a safearea load. Software selectable features include linearisation, ranging, monitoring, testing and tagging for all thermocouple types and 2-, 3- or 4-wire RTDs. (For thermocouple applications the HAZ-CJC plug on terminals 1–3 includes an integral CJC sensor). Configuration is carried out using a personal computer. A single alarm output is provided and may be configured for process alarm or to provide notice of early thermocouple failure.

SPECIFICATION

• Number of channels One
• Signal source
  • THC types J, K, T, E, R, S, B or N to BS 60584 and XK
  • mV input
  • RTDs 2/3/4-wire platinum to BS 60751
    • Pt 100, Pt 500, Pt 1000
    • Cu-50 & Cu-53
    • Ni 100/500/1000 DIN 43760
• Location of signal source
  • Zone 0, IIC, T4-6 hazardous area
  • Division 1, Group A, hazardous location
• Input signal range
  • –75 to +75mV, or 0 to 400Ω (0 to 1000Ω Pt & Ni sensors)
• Input signal span
  • 3 to 150mV, or 10 to 400Ω (10 to 1000Ω Pt & Ni sensors)
• RTD excitation current
  • 200µA nominal
• Cold junction compensation
  • Automatic or selectable
• Cold junction compensation error
  • ≤ 1.0°C
• Common mode rejection
  • 120dB for 240V at 50Hz or 60Hz (500ms response)
• Series mode rejection
  • 40dB for 50Hz or 60Hz
• Calibration accuracy (at 20°C) (includes hysteresis, non-linearity and repeatability)
  • Inputs: (500ms response)
    • mV/THC: ± 15µV or ± 0.05% of input value (whichever is greater)
    • RTD: ± 80mΩ
    • Output: ± 11µA
• Temperature drift (typical)
  • Inputs:
    • mV/THC: ± 0.003% of input value/°C
    • RTD: ± 7mΩ/°C
  • Output: ± 0.6µA/°C
• Example of calibration accuracy and temperature drift (RTD input - 500ms response)
  • Span: 250Ω
  • Accuracy: ± (0.08/250 + 11/16000) x 100% = 0.1% of span
  • Temperature drift: ± (0.007/250 x 16000 + 0.6) µA/°C = ±1.0µA/°C
• Safety drive on sensor failure
  • Upscale, downscale, or off

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 60 days 7-20 days, in very rare cases up to 60 days United States 20-60 days, in rare cases up to 80 days 14-30 days, in rare cases up to 60 days Canada 14-30 days, in rare cases up to 60 days 7-30 days, in rare cases up to 60 days Asia, India, Africa 14-40 days, in rare cases up to 60 days 7-20 days, in very rare cases up to 60 days Australia and Oceania 14-40 days, in rare cases up to 60 days 10-25 days, in rare cases up to 60 days South and Central America 20-40 days, in rare cases up to 70 days 14-30 days, in rare cases up to 60 days Other countries 20-60 days, in rare cases up to 80 days 10-30 days, in rare cases up to 70 days