Instruction manual

SM425 INSTRUCTION MANUAL 7.0 STARTUP
7.3 Supplying Power to the Converter
To avoid temperature changes around the sensor, it is recommended power be continuously supplied to
the Oxygen Analyzer even if it is only used periodically. The flowing of span gas (instrument air)
beforehand is also recommended.
Supply power to the converter. A display indicating the detector sensor temperature then appears as
shown in Figure 7-1. As the heat in the sensor increases, the temperature gradually rises to 750°C. This
takes about 20 minutes after the power is turned on, depending somewhat on the ambient temperature
and the measured gas temperature. After the sensor temperature has stabilized at 750°C, the converter
is in measurement mode. The display panel then displays the oxygen concentration as shown in Figure
7-2. This is called the basic panel display.
Figure 7-1 Sensor Display During Warmup
Figure 7-2 Measurement Mode Display
7.4 Touch panel Switch Operations
7.4.1 Basic Panel and Switch
The converter uses touch panel switches which can be operated by touching the panel display screen.
Figure 7-3 shows the basic panel display screen. Various switches appear in the switch display area
depending on the panel display selected. Table 7-1 shows the switch functions.
102 42500001 REV A