Siemens OXYMAT 64 Operating Instructions Manual page 143

Function display
Screen display depending on the called function.
Functional check
Identification activated by the device if it determines that the measured value was influenced
(e.g. when changing to operator control mode by decoding the device).
Gas analyzer
Device for quantitative analysis of gases and gas mixtures.
Gas inlet
Defined point for connecting a gas to the analyzer.
Gas outlet
Defined point for directing a gas out of a gas analyzer.
Hysteresis
(from Greek: hysteros = behind) Identifies the continuation of an effect following the
disappearance of its cause. Hysteresis occurs in many control processes, also in our gas
analyzers during the (delayed) switching over from one measuring range to another.
Input field
One or multiple line area in which the user can enter alphanumeric content or edit, delete or
replace exiting text contained therein.
Interfering gas
Residual gases present in the sample gas whose presence can falsify the measured value.
Leak-tightness
Reliability of piping system against escaping of gases.
Limit alarm
Signaling of upward/downward violation of a limit.
Limit monitoring
Function which monitors the observation of adjustable limits, and signals if these are
violated.
OXYMAT 64
Operating Instructions, 06/2008, A5E00880383-03
Glossary
141