Setting The Display; Setting Up An Auto-Cal - Teledyne 2010A Operating Instructions Manual

Thermal Conductivity Analyzer

4.3.1 Setting the Display

If you cannot read anything on the VFD after first powering up:
1. Observe LED readout.
2. Press I/O button twice to turn Analyzer OFF and ON again. LED

4.3.2 Setting up an AUTO-CAL

When proper automatic valving is connected (see chapter 3, installation),
the Analyzer can cycle itself 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 2010A is accurate to 2-3 %. Accordingly, internally
scheduled calibrations can vary 2-3 % per day.
Note: If all your ranges are for the same gas application, then AUTO-
CAL will calibrate whichever range you are in at the scheduled
time for automatic calibration.
Note: If your ranges are configured for different applications, then
AUTO-CAL will calibrate all of the ranges simultaneously (by
calibrating the Cal Range).
To setup an Auto–Cal cycle:
Choose System from the Function buttons. TheVFD will display five
subfunctions.
Contrast Function is DISABLED
(Refer to Section 1.6)
Contrast Function is DISABLED
(Refer to Section 1.6)
a. If LED meter reads 8.8.8.8.8., go to step 3.
b. If LED meter displays anything else, go to step 2.
meter should now read 8.8.8.8.8.. Go to step 3.
CONTRAST AUTO—CAL
PWD LOGOUT MORE
Teledyne Analytical Instruments
Part I: Control Unit
Part I 4-5