Orange Research”s loop-powered differential-pressure and flow transmitters feature two-wire output. The transmitters are offered with or without a dial. The optional dial gauge is convenient when local or redundant readout of pressure or flow is desired. Loop-powered transmitters with two-wire, 4-20 mA output offer easy installation. The transmitters are also offered with a standard three- or four-wire, 0-5 VDC output. The input voltage range for all configurations is 9-35 VDC. The transmitters have 2 percent full-scale accuracy and are built on the same pressure body as Orange Research”s high line pressure (to 5,000 PSI) gauges and switches. Users can select from many differential-pressure ranges (0-5″ H2O to 0-1000 PSID) and flow ranges (0-1 GPM to 0-10 GPM). Built for environmentally harsh industrial applications, the transmitter electronics are protected by a durable, weatherproof enclosure with Class 1, Div. 1 & 2, Nema 4X and IP65 ratings. A 7/8″ knockout is standard for 1/2″ conduit connections.