Honeywell UDA2182 manual Press

Input Calibration

Step Action Screen

4Insert a screwdriver into the tab in the terminal board to be wired and pull. Slide the board half way out. There is a notch in the terminal board into which you can slide the retainer tabs and hold the boards in place while wiring.

5Label and remove the input wiring from the input terminals. Terminals 8 and 10.

(See Figure 7-6 Terminal Designations for ORP).

6Feeding the test wiring through the conduit hole in the case, connect a voltage supply to the 8 and 10 input terminals

•To apply a signal in the range 0 to 1600 mV, connect the plus to

8 and the minus to 10.

•To apply a signal in the range -1 to -1600 mV, connect the plus to 10 and the minus to 8.

Slide the Input board back and close the case and power up the unit. Do not apply power until the case is closed.

7	Calibrate	PV INPUT CAL
Press
		In 1 pH/ORP Cal
		In 2 Conduc Cal

			Use	to select
		Input 1 or 2 pH/ORP Cal
8
	Enter		IN 1 pH/ORP Cal
Press			Sample Cal	0.000
			ORP Offset
			Reset ORP Offset

9	• Put the unit in “Hold”
	mode
10	Press Enter	The display will show the
		Oxidation Reduction Potential in
		Millivolts.
		The value should match the
		Input signal.

11Ignore the instructions to put the electrode in the reference solution. Instead, apply an appropriate millivolt signal (between –2000 and 2000 mV) to the input terminals.

To obtain a negative value, you must reverse the input to the unit as described in Step 5.

January 2009 UDA2182 Universal Dual Analyzer Product Manual 155