Teledyne 6600 manual Auto Screen

Oil in Water Analyzer Operation 3

3.6.1 Manual (Select/Define Range) Screen

TheManualrange-switchingmodeallowsyoutoselectasingle,fixed analysis range. It then allows you to redefine the upper and lower limits, for the range.

Enter the Range function to start the Range function.

Select range mode: MANUAL

If above screen displays, use the UP/DOWN switch to Select MANUAL, and Enter.

Select range to run —> Ø1 Ø2 Ø3 <—

NOTE: Oil in Water applications require single range (01) measurement.

Use the UP/DOWN switch to select the range: 01, 02, 03, or 04. Then Enter.

Gas use: OIL

Range: Ø — 100 ppm

The high-end of the range field should blink first. Use UP/DOWN switch to change the value of the field, Enter to move to the low-end of the range field.

Escape to return to the previous screen to select or define another range. Enter to return the to the Analyze function.

3.6.2 Auto Screen

Autorangingwillautomaticallysettotheapplicationthathasatleasttwo ranges setup with the same gases.

Intheautorangingmode,themicroprocessorautomaticallyrespondsto concentrationchangesbyswitchingrangesforoptimumreadoutsensitivity.Ifthe upperlimitoftheoperatingrangeisreached,theinstrumentautomaticallyshifts to the next higher range. If the concentration falls to below 85% of full scale of the next lower range, the instrument switches to the lower range. A correspond- ing shift in the DC concentration output, and in the range ID outputs, will be noticed.

The autoranging feature can be overridden so that analog output stays on a fixed range regardless of the contaminant concentration detected. If the conce-

Teledyne Analytical Instruments Part I 3-25