Honeywell Apex Technical Handbook page 128

MAN0604_Issue 09_02-2013 Apex
2110M8030
APPENDIX D - GLOSSARY
Sensor
A gas transducer within a protective enclosure: sensors may be safe or hazardous area mounted,
and may also include some driving, interfacing, biasing or signal conditioning circuitry.
Transmitter
A field device that is locally connected to a gas sensing transducer that translates the raw sensor
output into a user useful form, e.g. a display, 4-20mA or digital output.
UEl
Upper Explosive Limit.
%vO
l
Concentration of explosive gas, measured in percentage by volume.
%V/V
Another way of representing %VOL
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