Description
Overview
Essential details:MTL2213 SWITCH/ PROXIMITY DETECTOR MTL
The MTL2213 enables three 100VA safe-area loads to be controlled independently by three light-duty on/off switches or certified proximity detectors in a hazardous area. Switches and proximity detectors may be mixed. The three input circuits are interconnected but fully floating.
For proximity-detector and some switch applications, a phase-reverse link allows alarm conditions to be signalled for either state of the sensors. ‘Alarm’ means relays de-energised with their on/off contacts open, and all three circuits have to operate in the same fashion. This compact low-cost unit is suitable for a wide variety of applications. The MTL2213 supersedes the MTL2212 for which it is a direct replacement, except that only terminal 8 can be used for connecting to earth.
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MTL2213 SWITCH/ PROXIMITY DETECTOR MTL
Number of channels
Three, interconnected, fully floating
Location of switches
Zone 0, IIC, T6 hazardous area
Div 1, Group A, hazardous location
Location of proximity detectors
Zone 0, IIC, T4–T6 if suitably certified
Div 1, Group A, hazardous location
Voltage applied to each sensor
7.7 to 9.0V dc from 1kΩ
Input/output characteristics (each channel)
Relay energised if >2.1mA* (<2kΩ) in sensor circuit
Relay de-energised if <1.2mA* (>10kΩ) in sensor circuit
Hysteresis: 200μA (650Ω ) nominal
*NAMUR and DIN 19234 standards for proximity detectors