This Muller Digital-Timer TC 14.21 is a universal countdown timer with switching output for panel mounting. It is supplied with a tensioning bracket for a 46 x 46 mm cut-out. The adjustable timing range is a minimum 1.0 second to maximum of 9 hours 59 min 59 seconds. An optical and audible signal notifies the user on completion of set time. The output (1x changeover) is active during the timing cycle.
There are three buttons below the clear display for Start/Stop, Reset and Prog (Program). Connection is by pluggable screw terminals on the rear.
Q. We have a timer like this, how do you set the length of time the alarm sounds for? We had it set for 3 seconds, it used to work great but this function seems to have stopped working, we now have to manually switch off and reset.
A. Hi George, thank you for your question. The instructions can be found here.
