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Digihelic Differential Pressure Controller0 pages
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| sf&> STANDARD FILTER | ||||||||||||||||||||
| CORPORATION Phone: 760.929.8559 1.800.634.8537 Օ Fax: 760.929.1901 www.standardfilter.com 5928 Balfour Court Օ Carlsbad, California 92008 | ||||||||||||||||||||
| Diqihelic Differential Pressure Controller 3-in-l Instrument: Gage, Switch and Transmitter | ||||||||||||||||||||
| 1-15/16 (49.21) | ||||||||||||||||||||
| 3-19/32 _ (91.28)- ■flr-fl- | ||||||||||||||||||||
| a>i SP2 nr S S (a] Gz] CE | ||||||||||||||||||||
| 3-25/32 " (96.04) " | ||||||||||||||||||||
| 4-1/2 (114.30) | ||||||||||||||||||||
| 1-3/4 JBl (44.45)* | ||||||||||||||||||||
| _1/2 (12.70) | ||||||||||||||||||||
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| TheDwyer Series DH Digihelic" DifferentialPressure Controller is a 3-in-1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. Combining these three features allows the reduction of several instruments with one product, saving inventory, installation time and money. The Digihelic® is the ideal instrument for pressure, velocity and flow applications, achieving a 0.5% full scale accuracy on ranges from 5 to 100 in. w.c. The Digihelic® 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 five 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 dampening for smoothing erratic process applications; scaling the 4-20mA process output to fit your application s range; Modbus® communications; and field calibration. With all this packed into one product it is easy to see why the Digihelic® is the only instrument you will need for all your pressure applications. APPLICATIONS » Dust Collection Bag Filters » SCFM Flow In Ducts » Air Flow for Industrial Ovens » Filter Status » Clean Room Pressure » Fume Hood Air Flow » Pharmaceutical or Bio-Medical Glove Box Pressures » Static Pressures in Ducts or Buildings » Damper Control » Fan Control | SPECIFICATIONS Service: Air and non-combustible, compatible gases. Wetted Materials: Consult factory. Housing Material: ABS plastic, UL approved 94-V-0. Accuracy: ±0.5% at 77jF (25jC) including hysteresis and repeatability. Stability: < ±1% per year. Pressure Limits: 3 X range. Temperature Limits: 32 to 140| F (0 to 60|C). Compensated Temperature Limits: 32 to 140| F (0 to 60|C). Thermal Effects: 0.020%/| F (0.036/ C) from 77i F (25j C). Power Requirements: High Voltage Power = 100 to 240 VAC, 50 to 400 Hz or 132 to 240 VDC. Low Voltage Power = 24 VDC ±20%. Power Consumption: Low Voltage Power = 24 VDC - 130 mA max. High Voltage Power = 100 to 240 VAC, 132 to 240 VDC - 7VA max. Output Signal: 4-20 mA DC into 900 ohms max. Zero & Span Adjustments: Accessible via menus. Response Time: 250 ms. Display: 4 digit LCD 0.4 height. LED indicators for set point and alarm status. Electrical Connections: Screw terminals. Process Connections: Compression fitting for use with 3/16 OD X 1/8 ID tubing. Enclosure Rating: Face designed to meet NEMA 4X (IP66). Mounting Orientation: Mount unit in horizontal plane. Size: 1/8 DIN. Panel Cut-out: 1.772 x 3.620 in (45 x 92 mm). Weight: 14.4 oz. (408 g). Serial Communications: Modbus RTU, RS485, 9600 Baud. SWITCH SPECIFICATIONS Switch Type: 2 SPDT relays. Electrical Rating: 8 Amps at 240 VAC resistive. Set Point Adjustment: Adjustable via keypad on face. | |||||||||||||||||||
