Alarm OAA-300

Our alarm indicators type OAA-300 are stand-alone signaling devices with optic and acoustic alarm indication. Further product information Combined with a liquid level sensor (e.g. T-200F, EF2 or EFV2) and a leak detector (e.g. T-200L, ELH or EP) the OAA-300 can be used as a local monitoring device of a tank. OAA-300 records the limit-value signals of the connected level sensor / leak detector and releases an acoustic signal and an optical signal (acknowledgeable). The device is provided with an opencircuit and a short-line fault monitoring. Each input has a floating changeover contact (having the same working principle as a “lamp” contact) as an additional output for controlling actuators, for example. It is also possible to connect an external acousto-optical signalling device to the alarm indicator. All output contacts are operated in closed-circuit working. Compact design for local installation protection class according to EN 60529: IP 65 Available with 1 to 4 channels Internal acoustic signal and optic signal Outputs for controlling external signal lamp or alarm horn Additional separate outputs for controlling shutoff valves , alarm relaying to the control room etc. Integrated monitoring device (with optic / acoustic alarm indicator) Alarm indicator with more than 4 channels on request Technical Data Properties Protection class EN60529 IP 65 Operating temperature – 20…+60 °C Storage temperature – 30…+80 °C Sensitivity bei konduktiver Messung: 3, 10, 30, 100kΩ Dimensions 170 x 190 x 85 mm Weight ca. 0,8 kg Control circuits Open circuit voltage max. 10 V DC Short-circuit current max. 10 mA Switching delay ca. 0,5 s