Adjustment of 4 ma analog output – Analytical Industries GPR-7500 AIS Trace PPM Hydrogen Sulfide Analyzer User Manual

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Advanced Instruments, Inc.

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

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

The following displays appear:

4. Advance the reverse shade cursor using the ARROW keys to highlight DEFAULT ZERO.

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

The following display appears and after 3 seconds the system returns to the SAMPLING mode:

Adjustment of 4 mA Analog Output

In rare instances the 4-20mA signal output may not agree to the reading displayed on the LCD. This feature
enables the user to adjust the 4mA signal output when the LCD displays 0000.

Note Adjust the 20mA signal output with the OUTPUT SPAN option described below.

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

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

3. Press the ENTER key to select the highlighted menu option and the following displays appear:

4. Advance the reverse shade cursor using the ARROW keys to highlight OUTPUT ZERO.

5. Press the ENTER key to select the highlighted menu option and the following display appears:

MAIN MENU

AUTO SAMPLE

MSNUAL SAMPLE

CALIBRATION

CONFIG ALARMS

BYPASS ALARMS

CALIBRATION

SPAN CALIBRATE

ZERO CALIBRATE

DEFAULT SPAN

DEFAULT ZERO

OUTPUT SPAN

OUTPUT ZERO

FACTORY

DEFAULTS

SET