Emerson Rosemount 935 Quick Start Manual page 28

Open path combustible gas detector

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Quick Start Guide

2.5

Use check filters to validate configuration

Procedure

1. Position the Warning Level check filter on the detector as shown.

The check filters are provided in the commissioning kit.

Figure 2-5: Detector with Check Filter Installed

2. Check that the detector reading is within the range specified in the

factory acceptance test (FAT) certificate.

3. Repeat

4. Remove all filters and wait 30 to 60 seconds. Then verify that the

detector returns to Normal status (light-emitting diode [LED] is

green and blinking, and the output is 4 mA).

Step 1

and

Step 2

with the Alarm filter.

April 2021

Emerson.com/Rosemount

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