Teledyne 6600 manual Part I, Oil in Water Analyzer, Operation, Setting up an AUTO-CAL

Oil in Water Analyzer Operation 3

•APPLICATION: Used to define the analysis ranges and application (gas used).

•MODEL: Displays model number and software version.

•OUTPUT_CAL: 4-20 MA: Adjust 4 and 20 mA output.

The hierarchy of the system menu is shown in figure 3-1.

3.3.1 Setting up an AUTO-CAL

Whenproperautomaticvalvingisconnected,theAnalyzercancycleitself through a sequence of steps that automatically zero and span the instrument.

Note: Before setting up an AUTO-CAL, be sure you understand the Zero and Span functions as described in section 4.4, and follow the precautions given there.

Note: If you require highly accurate AUTO-CAL timing, use external AUTO-CAL control where possible. The internal clock in the Model 6600 is accurate to 2-3 %. Accordingly, internally sched- uled calibrations can vary 2-3 % per day.

To setup an Auto–Calcycle:

Choose Systemfromthemainmanu.TheVFDwilldisplayfivesubfunc-

tions.

DIG_FILT SELF—TEST

PWD LOGOUT MORE

Select MORE and Enter

AUTOCAL HMGNZR HOLD

CAL-HOLD-TIMER MORE

Use UP/DOWN to blink AUTO—CAL, and Enter. A new screen for ZERO/SPAN set appears.

ZERO	in	Ød	Øh	off
SPAN	in	Ød	Øh	off

Use UP/DOWN to blink ZERO (or SPAN), then Enter again. (You won’t

be able to set OFF to ON if a zero interval is entered.) A Span Every ...

(or Zero Every ...) screen appears.

Zero schedule: OFF

Day: Ød Hour: Øh

Teledyne Analytical Instruments

Part I 3-5