Instruction manual

SM425 INSTRUCTION MANUAL 8.0 DETAILED DATA SETTING
8.6.4 Setting Purging Time
Purging removes condensed water in the calibration gas pipe by supplying span calibration gas for a
programmed length of time prior to detector warm-up. This prevents cell damage during calibration due to
condensed water in the calibration gas pipe. The automatic calibration span gas solenoid opens during
purging and closes after the purge time has elapsed to start the warm-up process.
Purging is initiated on power up when the cell temperature is 100°C or less and the purge time is set in
the range of 1 to 60 minutes. A value of 0 minutes disables purging.
Figure 8-21 Display during Purging
8.6.4.1 Procedure
Use the following procedure to set the purging time:
1. Press the Setup key in the Basic Panel display screen.
2. Select Setup in the Execution/Setup display screen. The “Commissioning” (Setup) display screen
then appears.
3. Select “Others”. The “Others” display screen shown in Figure 8-22 then appears.
4. Select Purging. The purging time setting display screen appears, as shown in Figure 8-23
5. Point to the Purging time and press the [Enter] key. Then the display screen for setting purging
time appears.
6. Enter the desired numeric value from the numeric-data entry display screen. The allowable input
ranges from 0 to 60 minutes.
Figure 8-22 Other Settings
140 42500001 REV A