Hazardous area Safe area MTL3013 SWITCH/ To MTL4220 PROXIMITY DETECTOR (optional) RELAY MTL3013 2–channel + 5 9 Output A Input A 10 The MTL3013 has the same basic function as the MTL3011 but – 6 11 Output B incorporates two channels in one unit. It enables two safe-area loads 12 to be controlled independently by proximity detectors or switches + 3 + 7 located in hazardous areas. The two input circuits are interconnected Input B 20–35V dc but fully floating, enabling two safe-area loads to be controlled by a – 8 4 – single changeover switch if required. Each channel is provided with a phase reversal switch so that an alarm condition (output open) can be signalled for either state of the sensor. The status of each relay is To MTL4220 indicated by an LED on top of the unit and an additional terminal (optional) block provides the four terminals needed for the connections from the two sets of relay contacts. If the application calls for line-fault detection, MTL3011 or MTL3014 units should be used instead. MTL3013 SPECIFICATION See also 'Common specification' + Output A 9 5 Input A Number of channels 10 – 6 Output B Two, interconnected, fully floating 11 Location of switch 12 + + 7 3 Zone 0, IIC, T6 hazardous area Input B 20–35V dc Div 1, Group A, hazardous location – 8 4 – Location of proximity detector Zone 0, IIC, T4–6 if suitably certified Div 1, Group A, hazardous location Voltage applied to sensor 7.0 to 8.5V dc from 970Ω Input/output characteristics (each channel) Output closed if >2.1mA* (<2kΩ) in sensor circuit Output open if <1.2mA* (>10kΩ) in sensor circuit Hysteresis: 200µA (650Ω) typical *NAMUR and DIN19234 standards for proximity detectors Phase reverse facility Operations reversed by switches on top of unit Power supply failure protection Output circuits open if supply fails Relay characteristics Each single-pole on/off, open when relay de-energised Response time: 10ms typical Contact rating: 250V 5A 100VA (ac); 250V 5A 100W (dc) 5 Contact life expectancy: 1.5 x 10 operations at max. load, 6 >10 operations at 200V ac peak or dc, 10VA (resistive load) Note: reactive loads must be adequately suppressed LED indicators (each channel) ON when output circuit is closed Power requirement 55mA typical at 24V 75mA maximum at 20 to 35V Power dissipation within unit 1.4W typical at 24V 1.6W maximum at 35V Replaceable fuse 80mA, 5 x 20mm glass to DIN41571 sht 2, semi-time-lag (M) Safety description (each channel) 10.5V, 800Ω, 14mA, U = 250V rms or dc m FM max entity parameters V = 10.5V, I = 14mA, C = 2.4µF, L = 165mH oc sc a a Weight 170g EUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283 AMERICAS Tel: +1 603 926 0090 Fax: +1 603 926 1899 Nov 2004 ASIA PACIFIC Tel: +65 487 7887 Fax: +65 487 7997 E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.com