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壓力 Pressure

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	溫度傳感器

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	電子式液位開關

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Barksdale's CDPD1H and CDPD2H Housed Diaphragm Differential Pressure Switches
CDPD1H, CDPD2H, VCDPD1H, VCDPD2H Series

Description

Barksdale's CDPD1H and CDPD2H Housed Diaphragm Differential Pressure Switches are the answer for pressure control applications requiring tamper proof external adjustment and environments which require water-tight NEMA 4 housings. These pressure switches are available in single or dual control settings for both positive pressure and vacuum models, to 150 psi. The switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connection to free leads. All models feature calibrated dials for adjusting setpoints in units can be factory set upon request. For applications requiring a highly reliable, accurate switch in a durable package, Barksdale's CDPD1H and CDPD2H Housed Diaphragm Differential Pressure Switches are the ideal choice.

Features

Pressure and vacuum differential switch
High accuracy diaphragm switch
Calibrated dial for easy setpoint adjustment
Factory preset or field adjustable
Diaphragm Seal Option Available

Technical specifications

General Specifications*

Electrical Characteristics:	All models incorporate Underwriters′ Laboratories, Inc. listed single pole double throw snap-action switching elements. Switches may be wired "normally open" or "normally closed".
Accuracy:	± 0.5% of the adjustable range
Switch: Type: Rating:	SPDT single or dual circuit 10 amps @ 125/250 VAC; 3 amps @ 480 VAC (Class A or H limit switch)
Wetted Parts: Diaphragm: Seals: Enclosure: Other Parts:	17-7 PH stainless steel Viton? Die-cast aluminum anodized Nickel painted aluminum 300 series stainless steel
Electrical Connection:	Free leads approximately 18" long No. 16 AWG standard AWN 105/c wire through 3/4" conduit connection.
Enclosure Ratings:	Housed watertight housing (NEMA 4) Tamper-proof external adjustment.
Pressure Connection:	1/8" NPT female.
Approvals/Listings: UL: CSA:	UL listed; File # E42816 CSA listed under guide 380-W-1.16, Class 3231, File # 22355
Temperature Range: Operating:	-65°F to +165°F (-54° to 74°C)
Adjustment Instructions: Pressure: Vacuum Differential:	Turn adjustment screw clockwise to decrease pressure difference; counterclockwise to increase pressure difference. Turn adjustment screw counterclockwise to decrease vacuum difference; clockwise to increase vacuum difference.
Options:	-NEMA 4X -Cleaned for oxygen service
Shipping Weight:	Single & dual - approximate 3.50 lbs.
* See product confi gurator for additional options.

CDPD1H, CDPD2H, VCDPD1H, VCDPD2H Series Calibrated Differential Switch

Differential pressure, NEMA 4 housing with tamper-proof external adjustment dials. Working Ranges from .03 - 300 psi, set-point ranges from .03 - 150 psi.

Dialmatic Diaphragm Pressure Differential

Applications

Pump & compressor monitoring
Air proving in HVAC systems
Engine monitoring
Machine tools
Hydraulic power units
Metal working
Utility and power generation

Datasheets

Since 2007

美國DMK Engineering Solutions公司
信德邁科技(北京)有限公司 CNMEC Technology

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