LumaSense Technologies M8100SM-EXP - Manual (Page 34)

E 2 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
2 T QUASAR M8100-EXP housing will not
exceed 120 °F (50 °C). If cooling is required, refer to Chapter 3, Mechanical Installation.