Copied Series DHC Differential Pressure Controller, Range
Series DHC Differential Pressure Controller, Range
Dwyer, DHC-004, Differential Pressure Controller, Range W.C.The Series DHC Digihelic® Differential Pressure Controller is a 3-in-1 instrument possessing a digital display gage, control relay switches, and a transmitter with both current and voltage outputs. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time, and cost. The Series DHC Digihelic® differential pressure controller is the ideal instrument for pressure, velocity, and volumetric flow applications reading in several commonly used engineering units with optional unidirectional or bidirectional ranges. These units achieve a 1.5% or better accuracy on extremely low ranges, and 0.5% accuracy for ranges at or above 1 in w.c. Calibration can be performed in the field, making maintaining its accuracy more manageble. Additionally, the Series DHC Digihelic® differential pressure controller includes 2 SPDT control relays with adjustable deadbands. Programming the unit is simple using the built-in menu. With scalable 4-20 mA, selectable voltage process outputs, and selectable Modbus® or BACnet communication, this controller can easily fit into your application. Select a clean, dry location that is free from shock and vibration where temperature limits will not be exceeded. Distance from the transmitter to the receiver is limited only by total loop resistance. See WIRING section. The tubing feeding pressure to the instrument can be practically any length required, but longer lengths will slightly increase response time. All standard models are calibrated for use in a vertical mounting position. The DHC will perform properly when mounted at any angle but should be zeroed before use. For installation convenience, there are two sets of 1/8" female NPT pressure ports; one set is located on the back of the unit and the other is located on the side. Be sure to seal the unused ports with the included pipe plugs.For more information, please see Data Sheet.
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