Analytical-industries GPR-2900 Series Oxygen Analyzer Manuel d'utilisateur télécharger pdf (Page 17)

Advanced Instruments Inc.

9. Once the OVER RANGE warning appears the user must advance the analyzer to the next higher range via the menu and

keypad Press MENU, select MANUAL SAMPLING, press ENTER, select the appropriate MANUAL RANGE and press ENTER

again.

Alarms

The CONFIG ALARMS features a system that can be configured in the field. Two field adjustable alarm relays with dry contacts

operate independently of one another which means the alarms can be set-up as:

¾ HI and LO

¾ LO and LO, LO,

¾ HI and HI,HI

Additional feature includes delaying the activation of the local audible alarm and relay contacts for up 99 minutes to enable

users to distinguish between transient occurrences and true upset conditions which is particularly useful on remote applications

without affecting the 4-20mA signal output. The local audible alarm can be silenced or disabled as well without affecting the 4-

20mA signal output.

Note: A separate feature, BYPASS ALARMS described below, enables the user to disable the local audible alarm and relay

contacts during calibration or servicing. The alarms are enabled when the alarm condition is corrected.

Set Alarm Values:

1. Access the MAIN MENU by pressing the MENU key.

2. Advance the reverse shade cursor using the ARROW keys to highlight CONFIG ALARMS.

3. Press the ENTER key to select the highlighted menu option.

4. The following displays appears:

MAIN MENU

AUTO SAMPLE

MANUAL SAMPLE

CALIBRATION

CONFIG ALARMS

BYPASS ALARMS

>>>

MAIN MENU

SET ALARM 1

SET ALARM 2

SET ALARM DELAY

ALARM 1 HI/LO

ALARM 2 HI/LO

ALARMS AUDIBLE/SILENT

5. Advance the reverse shade cursor using the ARROW keys to highlight the SET ALARM 1 option.

6. Press the ENTER key to select the highlighted menu option.

7. The following displays appears with PERCENT as the default alarm value :

MAIN MENU

SET ALARM 1

SET ALARM 2

SET ALARM DELAY

ALARM 1 HI/LO

ALARM 2 HI/LO

ALARMS AUDIBLE/SILENT

>>>

GAS CONCENTRATION

PERCENT

PPM

8. Advance the reverse shade cursor using the ARROW keys to highlight the desired option.

9. Press the ENTER key to select the highlighted menu option.

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Analytical-industries GPR-2900 Series Oxygen Analyzer Manuel d'utilisateur Page 17

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