Description
MEASUREMENTS TECHNOLOGY LTD.
MTL INSTRUMENTS
MTL5018
TWO CHANNEL SWITCH/PROXIMITY DETECTOR INTERFACE,
WITH LINE FAULT DETECTION AND PHASE REVERSAL
POWER SUPPLY: 10.5V, 800Ω,14MA
INPUT RATED: 35VDC MAX, 60MA MAX
RELAY CONTACT RATED: 35VDC, 0.5A MAX
UM = 60-250V
MAX AMB 60°C
TECHNICAL SPECIFICATIONS:
NUMBER OF CHANNELS: TWO
SAFE-AREA OUTPUT: TWO RELAYS WITH CHANGEOVER CONTACTS
HAZARDOUS-AREA INPUTS: INPUTS CONFORMING TO NAMUR/DIN 19234 STANDARDS FOR PROXIMITY DETECTORS
VOLTAGE APPLIED TO SENSOR: 7 TO 9V FROM 1KO ±10%
RELAY TYPE: SINGLE POLE, CHANGEOVER CONTACTS
ISOLATION: 250V AC OR DC BETWEEN POWER SUPPLY, HAZARDOUS-AREA CIRCUITS AND RELAY OUTPUTS
SAFETY DESCRIPTION (EACH CHANNEL): 10.5V, 800O, 14MA, UM= 250V RMS OR DC
MADE IN LUTON,ENGLAND
The Measurements Technology MTL5018 is a two-channel switch and proximity detector interface for marine control systems. Each channel takes a hazardous-area input from a NAMUR proximity detector or switch and passes its state to a safe-area relay with changeover contacts. Line fault detection and phase reversal are built in, and 250 V AC or DC isolation separates the power supply, hazardous-area circuits and relay outputs. Relay contacts are rated 35 V DC, 0.5 A maximum. Its role is to bring field switch signals from hazardous zones into the alarm and control equipment. The unit is supplied in used condition.
Key Features
✓ Two channels with single-pole changeover relay outputs
✓ Hazardous-area inputs to NAMUR/DIN 19234 for proximity detectors
✓ Line fault detection and phase reversal
✓ Relay contacts rated 35 V DC, 0.5 A max
✓ 250 V AC or DC isolation between supply, hazardous-area circuits and relays
Marine Applications
✓ Valve position feedback from proximity sensors on cargo and ballast valves
✓ Tank level switch signals from hazardous areas to the alarm system
✓ Pump room limit switch inputs to the control system
✓ Damper and hatch position detection in gas-hazardous zones
Technical Support
Prota Marine provides technical support, repair and onboard installation for the MTL5018 proximity detector interface and the wider marine control system. Support covers fault diagnosis on the module, its relay outputs and the connected field detectors, followed by commissioning support when the unit returns to service.
