Écran LCD · Fiche technique
ApplicationThe resettable LCD-Counter displays the volume measured by the gas meter. As an option it is available for RITTER drum-type and bellows-type gas meters and must be ordered along with the gas meter.
Use in ex-proof areas
The LCD-Counter is not intrinsically safe. Therefore, it cannot be used in ex-proof areas in general! For exceptions please check with your authorized ex-proof safety representative.
Functional principleA permanent magnet as well as a reed contact are mounted within the counter casing of the gas meter. The permanent magnet closes the reed contact once per revolution of the measuring drum of the gas meter. Each pulse of the reed contact adds a volume increment to the displayed volume. The volume increment equals the measuring drum volume of the respective gas meter. Fractions of a drum revolution are indicted by the dial face indicator (needle). The LCD display is battery operated.
|Battery life time||approx. 5 years|
|Reset||manual reset via pushbutton (can be locked)|
|Reset lock||via bridge between terminals »Keylock« and »0 V«|
|Operating temperature||-10 to +50 °C|
|Display||8-digit LCD, 7 mm|
|Supply voltage||internal lithium battery|
|Protection class (IEC 144)||front side IP 65, terminals IP 20|
|Electrical connection||screw terminals|
|Input resistance||< 50 kΩ (static)|
V 1.0 / Rev. 2023-03-08 / Sous réserve de modifications.
Dr.-Ing. RITTER Apparatebau GmbH & Co. KG · Coloniastrasse 19-23 · D-44892 Bochum · Allemagne
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