Setra-system Model 223 Manual do Utilizador descarregar pdf (Página 3)

When installing units with Face Seal Fittings:

a) Align piping system to transducer connections

b) Hand tighten nuts

c) Torque nuts by placing wrenches on nuts only (or on nut and wrench flats

of transducer body for units with fixed male face seals) Never hold the

unit by the electronics housing during installation.

2.4 Venting

Model 223 transducers are vented through the electronics housing.

3.0 ELECTRICAL INSTALLATION

3.1 Voltage Output Units

The Model 223 voltage output transducer is supplied with a 6ft. multiconductor

cable or Bayonet style connector. The voltage output is either 5 VDC FSO or

10 VDC FSO. Diagram 1 shows electrical connection wiring for voltage

output transducers, and the excitation required.

Note: Model 223 can be wired as a 3-wire device by connecting

– OUTPUT and –EXCITATION and drain wire to a common ground.

However, accuracy may be reduced due to increase in resistance.

3.2 Current Output Units

The Model 223 is a two-wire loop-powered 4 to 20mA current output unit and

delivers rated current into any external load of 0-800 ohms. The Model 223 is

available with 6ft. of multiconductor cable or Bayonet style connector. Diagram

2 shows electrical connection wiring for current output transducers.

The power supply must be a DC voltage source with a voltage range between

10 VDC and 30 VDC measured between the + and - terminals. The unit is

calibrated at the factory with a 24 VDC loop supply voltage and a 250 ohm load.

Diagram 2

CONNECTOR PIN WIRING FOR CURRENT OUTPUT TRANSDUCERS

Diagram 1

and

w/N1 option, see Notes 2 and 3.)

(

CONNECTOR PIN WIRING FOR VOLTAGE OUTPUT TRANSDUCERS

CABLE BAYONET

CONNECTION WIRE PIN

+ EXCITATION RED A

+ OUTPUT GREEN B

– OUTPUT WHITE C

– EXCITATION BLACK D

CASE GND DRAIN SHELL

EXCITATION: 10-30 VDC FOR 0.2 TO 5.2 VDC and 0 to 5 VDC

13-30 VDC FOR 0.2 TO 10.2 VDC and 0 to 10 VDC

CABLE BAYONET

CONNECTION WIRE PIN

+ EXCITATION RED A

– EXCITATION BLACK D&B

CASE GND DRAIN SHELL

Minimum Supply Voltage = 10 + 0.02 x Loop Resistance

1 2 3 4 5 6 7 8

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Setra-system Model 223 Manual do Utilizador Página 3

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