Honeywell UDA2182 manual Sample Cal, Place probe in Sample, Change to Sample Value

Input Calibration

Step		Action	Screen
4
	Press	Enter	IN 1 pH/ORP Cal
			Auto Buffer Cal
			Buffer Cal

Sample Cal

Buffer Group

pH Offset

pH Slope

Reset pH Offset

Reset pH Slope

		Use	to select
			Sample Cal
5	• Put the unit in “Hold”
	mode
	• DO NOT Remove the
	electrode from the
	process.
6	Press Enter	“Place probe in Sample”
		The display will show the pH of
	Follow the prompts at the top	the process as measured by the
	and bottom of the screen.	electrode system.
		“Press Enter when stable”

7Collect a beaker of the process sample from a point near the electrode mounting and measure its pH value with a calibrated portable instrument.

Special instructions for high-purity water applications

For a high purity water application, do not remove the sample from the process for measurement. Bring the portable instrument to the sampling site and measure a continuously flowing sample that has not been exposed to air. This prevents lowering the sample pH by absorption of carbon dioxide from the air.

8	Once the reading is stable,	Change to Sample Value”
	press Enter	Use	keys to change the
		displayed value to match the
		value on the portable meter.
		“Enter to save, Exit to cancel”
9	If the calibration fails, an error	Error Messages:
	message will be displayed	See Table 12-2.
	across the bottom stripe of the
	screen.
	Make necessary adjustments
	and re-calibrate

January 2009 UDA2182 Universal Dual Analyzer Product Manual 149