Lumasense-technologies M8100SM-EXP Manuel d'utilisateur télécharger pdf (Page 34)

T QUASAR Flare Monitors Operation Manual Operating the M8100PM-EXP  34

5.1.8 Delay Adjust

The Delay Adjust (Figure 9, Item 9) can be configured from 2 seconds (completely

counterclockwise) to approximately 2 minutes (completely clockwise). The Delay Pot postpones

the Alarm condition once the set-point value is exceeded. This can prevent false alarms from

temporary loss of signal due to wind.

5.1.9 Milliamp Output (+mA / -mA)

Check the milliamp output signal at the instrument’s Terminal Output board. The signal should

be approximately 4mA when the flame is present and the analog meter reads full-scale. The

signal should read approximately 20mA when flame is lost, with analog meter under .35 of

scale.

Milliamp checks must be accomplished with a Milliamp meter placed in series with the control

room loop or parallel across the mA+ and mA- terminals when no other connections are on the

terminals.

1. Replace the top cover and the sixteen M8 x 1.25 socket head screws, torque to 30in/lbs.

2. Supply positive air flow and pressure to the air connections.

3. Verify that the temperature of the LumaSense E

TQUASAR M8100-EXP housing will not

exceed 120 °F (50 °C). If cooling is required, refer to Chapter 3, Mechanical Installation.

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Lumasense-technologies M8100SM-EXP Manuel d'utilisateur Page 34