MTL5516C Switch Proximity Detector Interface NAMUR Input, Relay Output

MTL5516C MTL Instruments Switch/Proximity Detector Interface

The MTL5516/C enable two safe-area loads to be controlled by a switch
or proximity detector located in a hazardous-area. When selected, open
or short circuit conditions in the field wiring are detected by the linefault-detect (LFD) facility and also indicated on the top of the module.
Phase reversal for each channel is selected by a switch on the side of
the module and output is provided by changeover relay contacts.
circuit in either field circuit.

SPECIFICATION
See also common specification

• Number of channels
Two
• Location of switches
Zone 0, IIC, T6 hazardous area
Div. 1, Group A hazardous location
• Location of proximity detector
Zone 0, IIC, T4–6 hazardous area if suitably certified
Div. 1, Group A hazardous location
• Hazardous-area inputs
Inputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)
• .Voltage applied to sensor
7 to 9V dc from 1kΩ ±10%
• Input/output characteristics
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)
User-selectable via switches on the side of the unit. Line faults are indicated by an LED for each channel. The channel output relay is
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
Two single-pole relays with changeover contacts
Note: reactive loads must be adequately suppressed
• Relay characteristics
Response time: 10ms maximum
Contact rating(Safe Area):
250V ac, 2A, cosØ >0.7,
40V dc, 2A, resistive load
Contact rating(Zone 2):35V, 2A, 100VA.
• Maximum current consumption
35mA at 24V
11.Power dissipation within unit
0.84W at 24V
• LED indicators
Green: power indication
Yellow: two: channel status, on when output energised
Red: two: LFD indication, on when line fault detected
• Safety description (each channel)
U_o=10.5V I_o=14mA P_o=37mW Um = 253V rms or dc

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Frequently Asked Questions

Q:Are the Products Genuine OEM Units?

A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.

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.

Achievers serves the Oil & Gas industries, EPC contractors, System Integrators and other industrial automation and process control companies worldwide. The industries we serve include Oil & Gas, Chemical, Petrochemical, Mining, Energy & Utilities, Pharmaceuticals, Electronics, Food and etc.

The company provides a diversified range of products to meet any process control and automation challenges in the industry. We stock and distribute pressure & temperature transmitters, level controller & transmitters, temperature probes, flowmeter, vibration monitoring devices, chart recorders, sensors, PLC, DCS, HMI, measuring instruments and other field instruments.

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SCHMERSAL Safety switches & Safety Systems

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