求翻译：2）设定报警参数：报警动作主要用于提示温度超过许可的温度点。报警动作也常用于超温后的降温控制。按SET健3秒仪表上排出现字符AL，仪表下排的数字即报警参数，当温度达到设定值又多超过下排显示的数字时报警继电器动作。是什么意思？

2) setting alarm parameters: alert actions are mainly used for tip temperature exceeds the permissible temperature points. Alert actions are also commonly used in the over-temperature after cooling control. Press SET key for 3 seconds and meter appears on the character AL, instruments digital alarm parameters under, when temperature reaches the set value is much more than the figures shown under alarm relay.