Specifications

INFRARED
Gas A.25 Infrared 52-1002-5 9/01/2008
PIRVOL Infrared Hydrocarbon Gas Process Monitor
PIRVOL Infrared Hydrocarbon Gas Process Monitor (Spec Sheet: 90-1137) is a point-type,
infrared gas process monitor designed for use in extractive vapor sampling applications. All PIRVOL
models provide a continuous 4-20 milliampere signal output that is proportional to a 0-90% by
volume hydrocarbon vapor concentration. Each unit is provided with a sealed, aluminum vapor
sampling enclosure fitted with brass compression tubing fittings (0.25 inch o.d. tubing) that are used
to attach vapor sample stream inlet and exhaust lines. The PIRVOL-LT model is optimized for
natural gas well-logging applications where accurate measurement of light hydrocarbon vapors such
as methane and ethane is desired. The PIRVOL-VR model is optimized for gasoline vapor recovery
applications where an accurate measurement of heavy hydrocarbon gases is required.
NOTE: External vapor sampling conditioning and control equipment is generally required for proper
operation of the PIRVOL gas monitors.
ACCESSORIES MONITOR
KEY:
= Required
= Option
= Choice Required
PIRVOL
Monitor
Power Supplies
Model PIRTB
Series
Termination Box