Hach Ultra MET ONE 237AB User Manual
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Contents
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16Operation5.2 SetupThe MET ONE 237 particle counter is ready to use when unpacked, but make sure thatthe red sensor inlet cap is removed and the isokinetic probe is attached prior to sampling(refer to section 3.2.1 on page 10). If the RH/T probe is used, attach it before the counteris turned on.5.3 Counting modesThe MET ONE 237 particle counter exhibits various counting modes—Manual mode,Automatic mode, Concentration mode and Beep mode.5.3.1 Manual modeNote: The factory default setting for the counting mode is the Manual mode.5.3.1.1 Factory default settingsTable 2 lists the default parameters that are programmed at the factory. The MET ONE237 particle counter exhibits various counting modes. The factory default setting for thecounting mode will be the Manual mode..DIFF Helps to operate the different settings of the counter.SELECTHelps to select the different settings of the counter. This is used to set the date and time,enable the printer, change the sample period, set the alarm limits, set the number ofsampling cycles and so on.PROGHelps to program the different settings of the counter. This is used to program the dateand time, enable the printer, change the sample period, set the alarm limits, set thenumber of sampling cycles and so on.UP arrowThis is an adjustment key and it helps to navigate up in the choices available. It helpsscroll through the different sizes, the counter is programmed to monitor and view thecumulative count in each size channel.DOWN arrowThis is an adjustment key and it helps to navigate down in the choices available. It helpsscroll through the different sizes, the counter is programmed to monitor and view thecumulative count in each size channel.MODE Helps navigate and select the different counting modes of the counter.Table 1 Indicators and key features or functions (continued)Key Name DescriptionTable 2 Default parameter settingsParameter SettingLocation number 000Count mode Manual (the counter will take one sample and stop counting)Alarm limits 0 (no particle count level alarms will be registered)Channel 2 particle size 0.7 m in 227A; 0.5 m in 227BVolume Liters (applies to Concentration mode only)Temperature C (applies only if RH/T probe is attached).RS232 mode Normal |
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