SERIES DH DIGIHELIC® DIFFERENTIAL PRESSURE CONTROLLER
●The Series DH Digihelic® Differential Pressure Controller is a 3-in-1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. The Digihelic® controller is the ideal instrument for pressure, velocity and flow applications, achieving a 0.5% full scale accuracy on ranges from 0.25 to 100 in w.c.The Digihelic® controller allows the selection of pressure, velocity or volumetric flow operation in several commonly used engineering units. Two SPDT control relays with adjustable dead bands are provided along with a scalable 4-20mA process output. The Series DH provides extreme flexibility in power usage by allowing 120/220 VAC and also 24 VDC power which is often used in control panels.
●Programming is easy using the menu key to access 5 simplified menus which provide access to: security level; selection of pressure, velocity or flow operation; selection of engineering units; K-factor for use with flow sensors; rectangular or circular duct for inputting area in flow applications; set point control or set point and alarm operation; alarm operation as a high, low or high/low alarm; automatic or manual alarm reset; alarm delay; view peak and valley process readings; digital damping for smoothing erratic process applications; scaling the 4-20mA process output to fit your application’s range; Modbus® communications; and field calibration.
●FEATURES/BENEFITS
■3-in-1 instrument allows the reduction of several instruments with one product, saving inventory, installation time and money
■Velocity of flow modes, a square root output coincides with the actual flow curve for greater precision
■Power usage of 120/220 VAC or 24 VDC provides flexibility to incorporate device in control panel
■Secure menu program provides access to device operation only for the right skill level
■Modbus® communications supports Process and HVAC system integration and control
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SERIES DH 、 DH-004-NIST 、 DH-004-FC 、 MN-1 、 A-266 、 A-203 、 Digihelic Links™ 、 DH-012 、 DH-014 、 DH-015 、 DH-016 、 DH-017 、 DH-009 、 DH-010 、 DH-002 、 DH-004 、 DH-006 、 DH-007 、 DH-008 |
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[ SCFM duct flow ][ Industrial ovens air flow ][ Filter status ][ Clean room pressurization ][ Fume hood air flow ][ Surgical pressurization ][ medical room pressurization ][ Damper control ][ fan control ] |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2019/05/31 |
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383 KB |
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