SERIES DH3 DIGIHELIC® DIFFERENTIAL PRESSURE CONTROLLER
●The SERIES DH3 Digihelic® Differential Pressure Controller is a 3-in-1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output all packed in the popular Photohelic® gage style housing. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time and money. The Digihelic® controller is the ideal instrument for pressure, velocity and flow applications, achieving a 1% full scale accuracy on ranges down to the extremely low 0.25 in w.c. to 2.5 in w.c. full scale. Ranges of 5 in w.c. and greater maintain 0.5% FS accuracy. Bi-directional ranges are also available.
●The Series DH3 Digihelic® controller allows the selection of pressure, velocity or volumetric flow operation in several commonly used engineering units. 2 SPDT control relays with adjustable deadbands are provided along with a scalable 4-20mA process output.
●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 reading; digital damping for smoothing erratic process applications; scaling the 4-20mA process output to fit your applications range and field calibration
●FEATURES/BENEFITS
■A low differential pressure gage, switch & transmitter combination instrument allows for local display, high/low alarm monitoring and connectivity to building automation systems
■Full scale accuracy of 1% even on extremely low ranges, and 0.5% for ranges above 5 in w.c. provide for greater measurement precision
■A reliable controller to measure low differential pressure, velocity or flow applications
■Secure menu program provides access to device operation only for the right skill level
■Optional stainless steel bezel is the same installation diameter as Magnehelic® Gage and simplifies field upgrade to DH3 pressure controller
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SERIES DH3 、 DH3-X-X 、 A-298 、 A-301 、 A-302 、 A-302F-A 、 A-370 、 A-489 |
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[ Cleanroom monitoring ][ Filter status ][ Duct static pressure ][ building static pressure ][ Damper control ][ fan control ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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12/17 |
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rev. 1 |
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DS-DH3 |
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766 KB |
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