Siemens ULTRAMAT 6 Series - Page 67

Abbreviation/
symbol
Description
RC element Resistor, Capacitor;
switch which consists of an ohmic resistor and a capacitor.
SELV Safety Extra Low Voltage
SIPROM GA Siemens Process Maintenance for Gas Analyzers
TÜV Technischer Überwachungsverein, German Technical Inspectorate
U6 ULTRAMAT 6
LEL Lower Explosion Limit
UL Underwriters Laboratories, certi󹪝cation service provider
VDE Verband der Elektrotechnik, Elektronik und Informationstechnik (German Association
for Electrical, Electronic and Information Technologies)
vpb Parts per billion by volume
vpm Parts per million by volume
Appendix
A.3List of abbreviations
Series 6 and ULTRAMAT 23
Compact Operating Instructions, 01/2024, A5E45779144002-AB 67