2.1Connecting Power and SCT/SFC, Continued

 

CAUTION

 

 

Do not try to remove the transmitter housing end-cap before loosening the

 

 

 

 

end-cap lock on the transmitter housing.

 

 

Table 1

 

Connecting Power Supply and SFC to ST 3000

 

 

 

 

 

 

 

 

 

 

 

 

 

Step

 

 

Action

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Use a 1.5 mm allen wrench to loosen the end-cap lock on the

 

 

 

 

 

 

terminal side of the transmitter housing. Unscrew and remove the

 

 

 

 

 

 

end cap from the housing

 

 

 

 

2

If the transmitter is supplied with an optional integral analog meter,

 

 

 

 

 

 

unsnap the meter from the terminal block to expose the wiring

 

 

 

 

 

 

connections.

 

 

 

 

3

Observing polarity, connect a 25 Vdc power supply to the

 

 

 

 

 

 

transmitter’s SIGNAL terminals as shown in Figure 1.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ATTENTION

Be sure there is a minimum of 250 ohms resistance

 

 

 

 

 

 

between the power supply and the transmitter.

 

 

 

 

 

 

 

 

 

 

 

4

Connect the SCT or SFC to the transmitter - red lead to SIGNAL

 

 

 

 

 

 

positive and black lead to SIGNAL negative. See Figure 1.

 

 

 

 

5

• If you are using the SCT, Select Tag ID icon from the SCT

 

 

 

 

 

 

toolbar to establish on-line commnications with the transmitter.

 

 

 

 

 

 

• If you are using the SFC, go to Section 2.2.

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1

Typical Power Supply and SCT/SFC Connections to ST 3000.

+

25 Vdc

Power

Supply250Ω

-

ST 3000

+ Red

- SIGNAL +

+ TEST

- Black

Easy connect terminals for direct SCT or SFC connections

SCT

SFC

6

ST 3000 Release 300 Installation Guide

2/05