Chapter 5
Switching on the device
This chapter describes switching on the device. The warm up screen, see Figure 5.0, shows
the block temperature while the block warms up. After the warm up, the device switches to the
operation screen, see Figure 5.1, from here the operation screen the main menu is opened. The
device can be run in two different modes, the safety mode and the normal mode. In the safety
mode every action has to be confirmed by the operator code (default: 111.000). In both modes
some actions require an expert code, for example changing the operator code and changing
between normal and safety mode. This manual refers to the device operated in normal mode.
5.1
Warm up Screen
The warm up screen shows the current block temperature during warm up in the center of the
screen, see Figure above. The target value of the block temperature, here 63
◦
C, are shown in
the bottom line of the screen. The current loop, relays and analog outputs are deactivated during
warm up. When the difference between the measured temperature and the target value is smaller
than 0.5
◦
C, the device switches to the operation screen. Pressing the <UP> key during warm up
switches directly to operation screen and activates the current loop. The displayed concentration
value is not precise until the block is warmed up.
5.2
Operation Screen
After the warm up of the block the operation screen is shown, see Figure above. The first line
provides the status information. Alarms are indicated by “A1“ and “A“, system errors are indicated
by “Er“, see chapter “Relays“ and Appendix A. The third line shows the unit of the measurement,
File name: Manual_FTC400_1.09KD181129CWI1V01.pdf
