GAI-Tronics 370-301 Dual Channel 600-Ohm to 33-Ohm Converter - Manual (Page 5)

Pub. 42004-431B
370-301 Dual Channel 600 to 30-Ohm Converter Page 5 of 9
f:\standard ioms - current release\42004 instr. manuals\42004-431b.doc
02/15
Power
The 370-301 Converter can be powered from a universal ac power source or 12 to 24-volt dc source.
NOTE
Do not use an ac or dc power source at the same time.
When using a universal ac power source, TB1 is used for field wiring and P1 or P2 are used to connect to
the ac to dc power supply in the unit. Attach #6 spade lugs to the wires before attachment to the terminal
blocks for the most secure connection. TB2 is not used in this configuration.
Table 1. Universal AC Power Connections – TB1
Pin Number Pin Name
1 Input Line
2 Input Neutral
3 Earth
When using a dc power source, TB2 is used for the field wiring. Attach #6 spade lugs to the wires before
attachment to the terminal blocks for the most secure connection. TB1, P1 and P2 are not in this
configuration.
Table 2. 12–24 Volt DC Connections – TB2
Pin Number Pin Name
1 12–24 V dc +
2 12–24 V dc -
3 Earth