Teledyne 3000ZA operating instructions Fixed Range Analysis

Operation 3000ZA

L—10 M—100

H—250 Mode—AUTO

Use the __ arrow keys to blink the range to be set: low (L), medium (M), or high (H).

Use the __ arrow keys to enter the upper value of the range (all ranges begin at 0 ppm). Repeat for each range you want to set. Press Enter to accept the values and return to Analyze mode. (See note below.)

Note: The ranges must be increasing from low to high, for example, if range 1 is set as 0–10 ppm and range 2 is set as 0–100 ppm, range 3 cannot be set as 0– 50 ppm since it is lower than range 2.

4.6.2Fixed Range Analysis

The autoranging mode of the instrument can be overridden, forcing the analyzer DC outputs to stay in a single predetermined range.

To switch from autoranging to fixed range analysis, enter the range function by pressing the Range button on the front panel.

Use the __ arrow keys to move the blinking over AUTO.

Use the __ arrow keys to switch from AUTO to FX/LO, FX/MED, or FX/HI to set the instrument on the desired fixed range (low, medium, or high).

L—10	M—100
H—250	Mode—FX/LO

—or—

L—10	M—10 0
H—250	Mode—FX/MED

—or—

L—10	M—10 0
H—250	Mode—FX/HI

Press Escape to re-enter the Analyze mode using the fixed range.

Note: When performing analysis on a fixed range, if the oxygen concentration rises above the upper limit (or default value)

Teledyne Analytical Instruments 48