SERIES DH3 DIGIHELIC® 3 DIFFERENTIAL PRESSURE CONTROLLERS
●The Series DH3Digihelic® 3 Differential Pressure Controllers are 3-in-1 instruments 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
■3-in-1 instrument allows the reduction of several instruments with one product, saving inventory, installation time and money
■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
■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 、 A-298 、 A-301 、 A-302 、 A-302F-A 、 A-370 、 A-489 、 DH3-004-SS 、 DH3-004-NIST 、 DH3-004-FC 、 DH3-002 、 DH3-003 、 DH3-004 、 DH3-005 、 DH3-006 、 DH3-007 、 DH3-009 、 DH3-010 、 DH3-011 、 DH3-013 、 DH3-014 、 DH3-015 、 DH3-016 、 DH3-017 、 DH3-018 |
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[ SCFM duct flow ][ Filter status ][ Duct static pressure ][ building static pressure ][ 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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393 KB |
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