Dwyer 2014 hot sale 668 series differential pressure

Xi'an Ao Xin Automation Instrument Co., Ltd.  

 

 (formerly named   Xi'an Ao Xin Automation Instrument Pneumatic Co.,ltd.) is a leading Chinese company specializing in the CCS  Pressure Measurement  Temperature   Measurement and some other kinds of products . We are a key member China of Pneumatic Association, and is awarded AAA Credit Grade by Bank of China.

High quality of the raw materials, the precision of the parts, the hard tests during and at the end of production are a warranty of reliability and features. Our real strength is to develop customised products to solve any requirement of utilisation. The production runs conforming to the rigorous ISO 9001/2000 requirements .  The product range consists of  sensor transmitter   pressure switch .differential pressureswitch Flowmeter    etc ,which are found in a variety of industrial applications such as machinery, metallurgy, food, textile and waste treatment.

 

Dwyer 2014 hot sale 668 series differential pressure transmitter

 

 

668   Intrinsically Safe Differential Pressure Transmitter, Range - 0-2.0" w.c.

FM Approved, NEMA 4X

The Dwyer Series 608 Differential Pressure Transmitters convert positive, negative (vacuum), or differential pressures of clean, dry air or other non-conductive, non-corrosive gases into a standard two wire, 4-20 mA output signal. The use of an ultra thin silicon diaphragm enables precision measurement of differential pressures as low as 0.1" of w.c. while withstanding high static working pressures up to 100 psig (6.89 bar). The Series 608 transmitters are FM approved intrinsically safe for use in the specified hazardous locations when used with an approved intrinsic safety barrier. The rugged NEMA 4X, stainless steel housing makes this transmitter ideal for use in industrial and process plant environments.

Applications

• Lab Fume Hood Control
• Clean Room Applications
• Flow Measurements & Controls
• Filter Monitoring
• Furnace Draft Measurement
• Process Control

Specifications

Service	Clean/dry air and compatible combustible gases (see Agency Approvals for FM ratings).
Accuracy	±0.25% full scale.
Stability	±0.5% F.S./yr.
Pressure Limits	100 psig (6.89 bar); 15 psid (1.03 bar).
Temperature Limits	-20 to 185°F (-28 to 85°C).
Compensated Temperature Range	0 to 160°F (-18 to 71°C).
Thermal Effect	±0.01% F.S./°F.
Power Requirements	12 to 36 VDC (2-wire).
Output Signal	4 to 20 mA DC.
Zero and Span Adjustments	Potentiometers for zero and span.
Response Time	250 ms.
Loop Resistance	DC: 0-1045 ohms maximum.
Current Consumption	4-20 mA.
Electrical Connections	Screw terminals: two 1/2" female NPT conduit.
Process Connections	Two 1/4" female NPT.
Enclosure Rating	NEMA 4X (IP65).
Mounting Orientation	Not position sensitive.
Weight	2 lb (0.9 kg).
Agency Approvals	FM approved intrinsically safe for use in Class I, Div. 1, Groups A, B, C, D; Class II, Div. 1, Groups E, F, G; Class III, Div. 1 when wire with approved intrinsically safe barrier. Entity parameters: Vmax=36 VDC; Imax=250 mA; C=12 nF; L=0 mH.