608系列 微差壓變送器-德威爾Dwyer
608系列 微差壓變送器用于空氣或其它兼容氣體的壓力,差壓,負(fù)壓的測量,輸出標(biāo)準(zhǔn)的兩線制4-20 mA信號(hào)。它采用了超薄的硅膠隔膜,可測量低到0.1英寸水柱的量程范圍,并且同時(shí)可承受高靜壓到100 psig (6.89 bar)。608變送器帶有FM認(rèn)證的本安防爆證書,配合本安隔離柵可用于危險(xiǎn)場合。它的不銹鋼的NEMA 4X防護(hù)的外殼*適合用于各種工業(yè)場合。
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 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: 0.5% Accuracy: ±0.02% F.S./°F; 0.25% Accuracy: ±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 to 1045 Ω maximum.
Current Consumption: 4 to 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.