Product Description
Dwyer Zener Barrier
Series MTL7706/7787 Zener BarrierIntrinsically Safe Barriers for Hazardous Locations
The MTL7706/7787 is an intrinsically safe (IS) 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
Model | Description |
MTL7706 | Intrinsically Safe Zener Barrier. |
MTL7787 | Intrinsically Safe Zener Barrier. |
Specifications - Transmitter Voltage: 16.2 V @ 20 mA with 250 load (negative w.r.t. earth); 11.0 V @ 20 mA with 500 load (negative w.r.t. earth).
- Safe Area Output: 4 to 20 mA.
- Load Resistance: 0 to 500.
- Power Requirement: 20 to 35 VDC w.r.t. earth.
- Accuracy: +2 µA under all conditions.
- LED Indicator: Green: Power Indication.
- Temperature Limits: Operating: -4 to 140oF (-20 to 60oC); Storage: -40 to 176oF (-40 to 80oC).
- Humidity: 5 to 95% RH.
- Terminals: Accommodate up to 2.5 mm stranded or single-core.
- Safety Description: 28 µV, 300, 93 mA.
- Weight: 4.9 oz (140 g).
- Agency Approvals: See table on Catalog page.