Omega RD100B manual Arrangement of the Measuring Input Terminals, Measuring input terminal block

2.3 Input Signal Wiring

When using internal reference junction compensation on the thermocouple input,

take measures to stabilize the temperature at the input terminal.

•Always use the terminal cover.

•Do not use thick wires which may cause large heat dissipation (cross sectional area of 0.5 mm2 or less recommended).

•Make sure that the ambient temperature remains reasonably stable. Large temperature fluctuations can occur if a nearby fan turns ON or OFF.

Connecting the input wires in parallel with other devices can cause signal

degradation, affecting all connected devices.

If you need to make a parallel connection, then

•Turn the burnout detection function OFF.

•Ground the instruments to the same point.

•Do not turn ON or OFF another instrument during operation. This can have adverse effects on the other instruments.

•RTDs cannot be wired in parallel.

Arrangement of the Measuring Input Terminals

A terminal cover is screwed in place on the measuring input terminal block on the rear panel. A label indicating the terminal arrangement is affixed to the cover.

Measuring input terminal block

Terminal cover attachment screws

Pen Model
b	+/A
	–/B
	Channel 1
	Channel 2
	Channel 3
	Channel 4
Screw input terminal

Channel 2	+/A	+/A	Channel 1
	–/B	–/B
Channel 4	b	b	Channel 3

Clamped input terminal

(/H2 option)

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