MTL4514D MTL5514D Switch Proximity Detector Interface Made in England



 

MTL4514D – MTL5514D SWITCH/ PROXIMITY DETECTOR INTERFACE

1-channel, dual output, LFD, phase reversal

 

 

The MTLx514D enables two safe–area loads to be controlled, through relays, by a proximity detector or switch located in a hazardous area.

When selected, open or short circuit conditions in the field wiring are detected by the line fault detect (LFD) facility and indicated on the top of the module.
Switches are provided to select phase reversal and to enable the line fault detection.

 

 

SPECIFICATION of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England
 

See also common specification

Number of channels

One

 

Location of switch of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

Zone 0, IIC, T6 hazardous area

Div.1, Group A, hazardous location

 

Location of proximity detector of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

Zone 0, IIC, T4–6 hazardous area, if suitably certified

Div.1, Group A, hazardous location

 

Hazardous–area inputs of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

Inputs conforming to BS EN60947–5–6:2001 standards for

proximity detectors (NAMUR)

 

Voltage applied to sensor of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

7 to 9V dc from 1kΩ ±10%

 

Input/output characteristics of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

Normal phase

Outputs closed if input > 2.1mA (< 2kΩ in input circuit)

Outputs open if input < 1.2mA (> 10kΩ in input circuit)

Hysteresis: 200µA (650Ω) nominal

 

Line fault detection (LFD) (when selected) of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

User-selectable via switches on the side of the unit. Line faults are

indicated by an LED. The channel output relays are de-energised if

an input line-fault is detected

Open-circuit alarm on if Iin < 50µA

Open-circuit alarm off if Iin > 250µA

Short-circuit alarm on if Rin < 100Ω

Short-circuit alarm off if Rin > 360Ω

Note: Resistors must be fitted when using the LFD facility with a contact input

500Ω to 1kΩ in series with switch

20kΩ to 25kΩ in parallel with switch

 

 

Safe-area output of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

MTL4514D: two, single pole relays with normally-open contacts

MTL5514D: two, single pole relays with changeover contacts

Note: reactive loads must be adequately suppressed

 

 

LED indicators of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

Green: power indication

Yellow: channel status, on when output energised

Red: LFD indication, on when line fault detected

 

Maximum current consumption of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

29mA at 24V dc

 

Power dissipation within unit of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

0.7W at 24V

 

Safety description of MTL4514D MTL5514D Switch Proximity Detector Interface Made in England

Uo=10.5V Io=14mA Po=37mW Um = 253V rms or dc