MTL4573 MTL Instruments Temperature Converter THC RTD Input Number Of Channels One

MTL4573 MTL Instruments TEMPERATURE CONVERTER THC Or RTD Input

The MTL4573 converts a low-level dc signal from a temperature sensor mounted in a hazardous area into a 4/20mA current for driving a safe-area 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.

SPECIFICATION
See also common specification
• Number of channels
One
• Location of signal source
Zone 0, IIC, Hazardous area
Division 1, Groups A-D, hazardous location
• RTD excitation current
200µA nominal
• Cold junction compensation, THC input
Selectable ON or OFF
• Cold junction compensation error
≤ 1.0°C
• Common mode rejection
120dB for 240V at 50Hz or 60Hz
• Series mode rejection
40dB for 50Hz or 60Hz
• Calibration accuracy (at 20°C)
(includes hysteresis, non-linearity and repeatability)
Inputs:
mV/THC: ± 15µV or ± 0.05% of input value
(whichever is greater)
Pt 100 - RTD: ± 80mΩ
Output: ± 11µA
• Temperature drift (typical)
Inputs:
mV/THC: ± 0.003% of input value/°C
Pt 100 - RTD: ± 7mΩ/°C
Output: ± 0.6µA/°C
• Example of calibration accuracy and temperature drift
(RTD input)
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
• Early burnout
Early burnout detection for thermocouples (when selected)
EBD indicated when loop resistance increase is > 50Ω
• Output range
4 to 20mA nominal into 600Ω max.
Out of range characteristic - MTL or NAMUR NE43
• Maximum lead resistance (THC)
600Ω with safety drive on sensor failure enabled.
>10kΩ with safety drive on sensor failure disabled
• Response time
Typical 500 ms
• LED indicator
Green: EBD alarm indication, power and status indication
Yellow: alarm indication
• Maximum current consumption (with 20mA signal)
50mA at 24V
• Power dissipation within unit (with 20mA signal)
1.2W at 24V
• Safety description
Refer to certificate for parameters. Um=253V rms or dc
• Configurator
A personal computer running MTL PCS45 software with a PCL45USB serial interface.

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Company Introduction:

Achievers Automtation Limited deals with a complete range of industrial automation components and instruments with more than 12 years’ experience, and always try best to provide quality goods and timely services to our valued customers from over 45 countries worldwide.

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