| 摘要 |
<p>The signalling device has gas sensors (3a-3i), where two of the sensors are arranged in spaces (2a, 2b) to be monitored and are connected by an evaluation device (5) with a test device for functional testing of the gas sensors. The test device has a gas storage reservoir (6), in which test gas is placed, where the sensors are sensitive to the test gas. The storage tank is connected by a check valve (9) with a gas exhaust. The gas exhaust is arranged relative to the sensors such that the test gas, which emerges through an opening, is guided to the sensors and a measuring signal is generated. An independent claim is also included for a method for testing a function of gas sensors.</p> |
