Analytical Industries GPR-1600 Series Trace PPB Oxygen Analyzer - Manual (Page 27)

Advanced Instruments Inc.
27
Manual Range Sampling
The display will not shift automatically. Instead, when the oxygen reading exceeds 125% of the upper limit of the current range
an OVER RANGE warning will be displayed. Once the OVER RANGE warning appears the user must advance the analyzer to the
next higher range.
Procedure: From the SAMPLE menu, advance the cursor (*) to the “Manual Range” option and press ENTER:
SAMPLE
Auto Range
* Manual Range
Bypass
Standby
Standby
Auto Range
85⁰F 100Kpa
12/31/07 12:00:00
The following display appears:
MANUAL RANGE
0 to 25%
0 to 1%
0 to 1000 PPM
0 to 100 PPM
* 0 to 10 PPM
Standby
Auto Range
85⁰F 100Kpa
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Advance the cursor (*) to the desired fixed manual range, e.g. 0 to 10 ppm and press ENTER.
Within seconds the system assesses the oxygen concentration and returns to the MAIN MENU in the “Sample” mode. On the top
line at the bottom of the menu, the Manual Range mode is indicated as is the fixed full scale range selected.
* MAIN MENU
Sample
Span
Zero
Alarm
System
Standby
Sample
5.00 PPM
Manual Range
85⁰F 100Kpa 0 to 10 PPM
12/31/07 12:00:00