MTL4531 MTL Instruments Vibration Transducer Interface

Description of MTL4531 Vibration Transducer Interface

MTL4531 repeats a signal from a vibration sensor in a hazardous area, providing an output for a monitoring system in the safe area. The interface is compatible with 3-wire eddy-current probes and accelerometers or 2-wire current sensors; the selection is made by a switch on the side of the module.

SPECIFICATION
See also common specification
• Number of channels
One
• Sensor type
2- or 3-wire vibration transducer
• Location of signal source
Zone 0, IIC, T4–6 hazardous area if suitably certified
Div. 1, Group A hazardous location
• Hazardous-area input
Input impedance (terminals 2 & 3): 10kΩ
• Transducer supply current, 2-wire
3.3mA (nom.) for 2-wire sensors, user selectable by switch
• Signal range
Minimum –20V, maximum –0.5V
• DC transfer accuracy at 20°C
<±50mV
• AC transfer accuracy at 20°C
0Hz to 1kHz: ±1%
1kHz to 10kHz: –5% to +1%
10kHz to 20kHz: –10% to +1%
• Temperature coefficient
±50ppm/°C (10 to 65°C)
±100ppm/°C (–20 to 10°C)
• Voltage bandwidth
–3dB at 47kHz (typical)
• Phase response
<14µs, equivalent to:
–1° at 200Hz
–3° at 600Hz
–5° at 1kHz
–50° at 10kHz
–100° at 20kHz
• Safe-area output impedance
<20Ω
• LED indicator
Green: power indication
• Supply voltage
20 to 35V dc
• Maximum current consumption (10mA transducer load)
65mA at 24V
• Maximum power dissipation within unit
1.33W
• Safety description
Terminals 3 to 1
U_o=26.6V I_o=94mA P_o=0.66W U_m = 253V rms or dc
Terminals 3 to 2
Non-energy-storing apparatus ≤1.5V, ≤0.1A and ≤25mW


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