344 Commissioning/Decommissioning4.4.11 Brightness, Contrast and LanguageThe parameter group ***Display*** controls the LT2 Lambda Transmitter's display and oper-ating unit with the following parameters:• P 970 ContrastAdjust the display and operating unit’s contrast.• P 971 BrightnessAdjust the display and operating unit’s background brightness• P 972 LanguageSelect the display language.NOTICEOnly 2 different languages are available simultaneously. If a language is missing in the lan-guage list, a software update may be necessary (Flash).