Teledyne M5000B operating instructions Select More and press the Enter Key

Photometric Analyzer Operation /Control Unit 3

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 5000BF is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day.

To setup an Auto–Cal cycle:

Choose System from the Function buttons. TheVFD will display five subfunctions.

DIG_FILT SELF—TEST

PWD LOGOUT MORE

Select MORE and press the Enter Key

AUTOCAL	FILSOL	HOLD
CAL-HOLD-TIMER	MORE

Use < > arrows to blink AUTO—CAL, and press Enter. A new screen for ZERO/SPAN set appears.

ZERO in Ød Øh off

SPAN in Ød Øh off

Press < > arrows to blink ZERO (or SPAN), then press 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

Use DÑ arrows to set an interval value, then use < > arrows to move to the start-time value. Use DÑ arrows to set a start-time value.

To turn ON the SPAN and/or ZERO cycles (to activate AUTO–CAL): Press System again, choose AUTO–CAL,and press Enter again. When the ZERO/SPAN values screen appears, use the < > arrows to blink the ZERO (or SPAN) and press Enter to go to the next screen. Use < > to select OFF/ ON field. Use DÑ arrows to set the OFF/ON field to ON. You can now turn these fields ON because there is a nonzero span interval defined.

If instrument is turned off, the next time the instrument is powered, the instrument will automatically perform a calibration cycle after 3 minutes of entering the sample mode if AUTOCAL functions were on prior to shut down.

Teledyne Analytical Instruments

Part I 3-5