Advanced instruments inc – Analytical Industries GPR-2600 Series Oxygen Analyzer User Manual
Page 25

Advanced Instruments Inc.
 
 
 
25
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 
 
12/31/07 12:00:00 
 
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 %
Manual Range 
85⁰F 100Kpa 
0 to 10 % 
12/31/07 12:00:00 
