Honeywell UDA2182 manual Dissolved Oxygen, Ground screw

Inputs and Outputs Wiring

7.7 Dissolved Oxygen

	Wire		Signal
Cable shield (Blue)	Color		Name
to chassis ground screw	Clear	10	Cathode
	Green	9	Reference
	Red	8	Anode
	Black*	7	Guard
		6
	Yellow	5	RTH Low
	Orange	4	RTH High
		3
		2
Wire to chassis		1	Earth Ground
ground screw

*Older Dissolved Oxygen probes may have a White/Black Guard wire instead of a Black Guard wire.

Some cables have connectors on the leads. Cut off the connectors, skin and tin the leads and then wire to the screw terminals on the boards

Figure 7-16 Terminal Designations for Dissolved Oxygen with Integral Cable

CAUTION

When installing the probe, the wiring must be done in the order shown below even if the analyzer is not powered. This is because the DO Input card is continuously supplying a voltage (bias) to the terminals.

Connecting – Blue Shield wire first, then in this order:

Red

Green

Coax (clear)

Guard (Black)

Yellow

Orange

Disconnecting – Go in reverse

Orange – first

Yellow

Guard (Black)

Coax (clear)

Green

Red

Blue Shield Wire

January 2009 UDA2182 Universal Dual Analyzer Product Manual 131