Siemens ET 77E Series Specifiche Scaricare il pdf (Pagina 7)

SD77

FIGURE 1-1 Sample Rating Labels

1.2 GENERAL SPECIFICATIONS

Supply Pressure

Normal..................................................................20 psig

Maximum .............................................................30 psig

Minimum..............................................................18 psig

3 to 27 psig Output Models

Normal...........................................................30 psig

Maximum......................................................35 psig

Input/Output Data

Model Input Span

(mAdc)

Standard Input Range*

(mAdc)

Output Range

(psig)

Nominal Coil Resistance

(Ohms)

77-3 4 1 to 5 3 to 15 2450

77-3A 4 0 to 4 3 to 15 2450

77-8 16 4 to 20 3 to 27 610

77-16 16 4 to 20 3 to 15 185

77-40 40 10 to 50 3 to 15 30

*The zero adjustment can shift the span up or down for non-standard input ranges from +40% to -20% (input and

output at mid-scale).

Output Capacity...........................................................0.16 SCFM @ 20 psig supply

Maximum Air Consumption........................................Less than 0.25 SCFM @ 20 psig supply

Ambient Temperature..................................................Limits -40°C to +85°C (-40°F to +185°F)

Construction Materials That May Be Used .................Stainless steel, steel, cast iron, aluminum, zinc alloy, brass,

neoprene, neoprene on nylon, nitrile rubber, silicone, BUNA-

N, silicon on fiberglass, viton® on nomex®, viton

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Siemens ET 77E Series Specifiche Pagina 7