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.
Transmitter Voltage
16.2 V at 20 mA with 250 Ω load (negative w.r.t. earth); 11.0 V at 20 mA with 500 Ω load (negative w.r.t. earth).
Safe Area Output
4-20 mA
Load Resistance
0 to 500 Ω
Power Requirement
20-35 VDC w.r.t. earth
Accuracy
±2 µA under all conditions
LED Indicator
Green: Power indication
Temperature Limits
Operating -4 to 140°F (-20 to 60°C); Storage: -40 to 176°F (-40 to 80°C)
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.
Transmitter Voltage
16.2 V at 20 mA with 250 Ω load (negative w.r.t. earth); 11.0 V at 20 mA with 500 Ω load (negative w.r.t. earth).
Safe Area Output
4-20 mA
Load Resistance
0 to 500 Ω
Power Requirement
20-35 VDC w.r.t. earth
Accuracy
±2 µA under all conditions
LED Indicator
Green: Power indication
Temperature Limits
Operating -4 to 140°F (-20 to 60°C); Storage: -40 to 176°F (-40 to 80°C)
Humidity
5 to 95% RH
Terminals
Accommodate up to 2.5 mm2 stranded or single-core
Safety Description
28 µV, 300 Ω, 93 mA
Weight
4.9 oz (140 g)
Enquiry for Dwyer Omega – Series MTL 7706/7787 Zener Barriers
