Intrinsically safe electrical safety barrier MTL77 series

LED

The Series MTL7706/7787 Zener Barriers are an intrinsically safe shunt-diode barrier that can be used to communicate with and provide isolations for certain Dwyer ® transmitters approved for use in hazardous areas. These barriers limit the amount of energy allowed to pass into the hazardous area, which inhibit ignition in flammable atmospheres. Product Applications Electrically isolates pressure and level transmitters from unregulated circuits for intrinsically safe applications Features Approved for use in hazardous areas Transmitter Voltage: 16.2 V @ 20 mA with 250Ω load (negative w.r.t. earth); 11.0 V @ 20 mA with 500Ω load (negative w.r.t. earth). Safe Area Output: 4 to 20 mA. Load Resistance: 0 to 500Ω. Power Requirement: 20 to 35 VDC w.r.t. earth. Accuracy: ±2 µA under all conditions. LED Indicator: Green: Power Indication. Temperature Limits: 5 to 95% RH. Terminals: Accommodate up to 2.5 mm² stranded or single-core. Safety Description: 28 µV, 300Ω, 93 mA. Weight: 4.9 oz (140 g).