Hi, I have gotten my hands on a Delta Design 2300R environmental oven however I have no handbook and am having some trouble getting it to operate correctly. When the oven is cold I can set a heat setting and it will tend to reach this operating temperature. However once the temperature has been reached the oven seems to cease to maintain the temperature until the oven reaches below 30C again (quite a while). Is there some setup that I need to do or can anything be gleaned from what looks like an RS232 port at the back ?
Thanks,
Robin.