The limit monitor GWZ is a freely programmable gas alarm system, and it is equipped with a rolling display. Altogether from 2 up to a maximum of 6 gas measuring systems can be connected to one limit monitor GWZ-S2, S4 or S6. It is also possible to connect external features such as a “traffi c light” indicator with sirene, NO/NC contacts are available so one can forward the alarm to their in house alarm/monitoring system or to a ventilation system to boost de air circulation. The unit can be used for several gasses such as O2 and CO2.
LIMIT MONITORS GWZ-S2 AND GWZ-S4
The limit monitor GWZ-S2 (GWZ-S4) is a freely programmable gas alarm system, which is equipped with a rolling display. Alltogether a maximum of 2 (4) gas measuring systems from J. Dittrich Elektronic can be connected to one limit monitor GWZ-S2 (GWZ-S4). Thus, one limit monitor can monitor different types of gases simultaneously. When the values exceed or fall below a previously defi ned limit value, the unit can be operated with 1 or 2 alarm thresholds. A grouping of the alarms is possible. GWZ-S2 and GWZ-S4 both have 4 output relays, 2 of which can be assigned freely (alarm relays). Two relays are fi xed – one for activating the acoustic alarm and one for indicating fault conditions. GWZ-S2 is equipped with 2 input channels A and B, GWZ-S4 with4 input channels A, B, C and D.