Dwyer

608 Intrinsically Safe Differential Pressure Transmitter

Ultra thin silicon diaphragm, high accuracy at low pressure ranges, NEMA 4X enclosure

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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 in 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.

• High accuracy at low pressure ranges provides exceptional measurement for ensuring tight-control and minimizing costly out of specification conditions
• Intrinsically safe for use in the specified hazardous locations meets specifications where pressure transmission and safety cannot be compromised
• NEMA 4X rated enclosure provides protection in harsh environments permitting outdoor monitoring or in areas where dust and particulate matter exists


 

Service Clean/dry air and compatible combustible gases (see Agency Approvals for FM ratings)
Wetted Materials Consult factory
Accuracy 0.5% or 0.25% full scale
Stability 0.5% F.S./yr
Pressure Limits 100 PSIG (6.89 Bar); 15 PSIG (1.03 Bar)
Temperature Limits -20F - 185F (-28C - 85C)
Compensated Temperature Range 0F - 160F (-18C - 71C)
Thermal Effect 0.5% Accuracy: 0.02% F.S./F;
0.25% Accuracy: 0.01% F.S./F
Power Requirements 12 - 36 VDC (2-wire)
Output Signal 4 - 20 mA DC
Zero and Span Adjustments Potentiometers for zero and span
Response Time 250 ms
Loop Resistance DC: 0 Ω - 1045 Ω maximum
Current Consumption 4 - 20 mA
Electrical Connections Screw terminals: two 1/2 in female NPT conduit
Process Connections Two 1/4 in 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

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