LumaSense Technologies M8100SM-EXP - Manual (Page 19)

E 2 T QUASAR Flare Monitors Operation Manual Mechanical Installation 19
Figure 5: Pedestal Mounting Concept
3.3 Ambient Temperature Limits
The ambient operating temperature limits of the QUASAR M8100-EXP are -40 °F (-40 °C) to
120 °F (50 °C). When the internal temperature drops below 40 °F (4 °C), an internal electric
heater activates to keep the internal temperature at or above 40 °F (4 °C). If the ambient
temperature is expected to be below -40 °F (-40 °C), additional heating or protection for the
instrument is required. If the ambient temperature is expected to be above 120 °F (50 °C), water
or Vortex Air cooling is required.
3.4 Cooling Requirements
If ambient temperatures in excess of 120 °F (50 °C) are anticipated during the operation of the
QUASAR M8100-EXP, cooling will be required by one of the following two methods:
3.4.1 Water Cooling
Provide cooling water at 60 °F (15 °C) maximum from a filtered source with a flow rate capable
of sustaining at least 10 gallons per hour (37.8 L/h) to the cooling cavity built into the underside
of the explosion-proof enclosure. This method allows operation in ambient temperatures up to
200 °F (93 °C). If the available cooling water temperature is above 60 °F (15 °C), then trial-and-
error testing will have to be performed to empirically set the appropriate flow rate. The flow
rate must be adequate to ensure that the electronics inside the explosion-proof enclosure do
not rise above 120 °F (50 °C).