Micromod MOD: Modcell 2050R Users Guide Manuel d'utilisateur télécharger pdf (Page 22)

IB-23C650

INSTALLATION

Figure 5. 2- Wire Milliampere Input Connections

External Power

Supply

MILLIAMPERE INPUT - 2-WIRE TRANSMITTER

Shield to be left un-

connected at this end.

2-Wire

Transmitter

– + G

External Transmitter

Power Supply (50 mA

max. loop current)

– +

Internal Transmitter Pow-

er Supply (22 mA Max.

Loop Current)

2-Wire

Transmitter

– + G

Milliamp input specifications are:

Input Range: 0 to 54 mA dc, Limited to below 70 mA

Input Span: Operator settable from 1mA to 50 mA

Input Impedance: 50 ohms nominal

Resolution: 2.5 microamps maximum, 0.016% of a typical milliamp span

Accuracy: ±0.1% of input

Temperature Effect: 0.01% per degree C.

Sample Time: 0.25 seconds

Transmitter Power Supply: Isolated 24V dc, 20 mA transmitter power

supply. For current inputs above 20 mA, a separate power supply must be

used.

Linearizations:Square law

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 227 228

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Micromod MOD: Modcell 2050R Users Guide Manuel d'utilisateur Page 22