Teledyne GFC 7001EM operation manual Setup MORE  Alrm Using the GAS Concentration Alarms

Advanced Features Model GFC7001E Carbon Dioxide Analyzer

7.5.SETUP MORE  ALRM: USING THE GAS CONCENTRATION ALARMS

The GFC 7001E/EM includes two CO concentration alarms if OPT 61 is installed on your instrument. Each alarm has a user settable limit, and is associated with a Single Pole Double Throw relay output accessible via the alarm output connector on the instrument’s back panel (See Section 3.3.3). If the CO concentration measured by the instrument rises above that limit, the alarm‘s status output relay is closed.

The default settings for ALM1 and ALM2 are:

Table 7-11: CO Concentration Alarm Default Settings

ALARM	STATUS	LIMIT SET POINT1
alm1	Disabled	100 ppm
alm2	Disabled	300 ppm

1Set points listed are for PPM. Should the reporting range units of measure be changed (See Section 6.6.3) the analyzer will automatically scale the set points to match the new range unit setting.

NOTE

To prevent the concentration alarms from activating during span calibration operations ensure that the

CAL or CALS button is pressed prior to introducing span gas into the analyzer.

7.5.1.SETTING THE GFC 7001E CONCENTRATION ALARM LIMITS

To enable either of the CO concentration alarms and set the limit points, press:

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