User Manual
22 • GX-2012 and Gas Tracer Data Logging Capacity
GX-2012 and Gas Tracer Data 
Logging Capacity
Table 1 above lists the GX-2012’s and the Gas Tracer’s data logging 
capacity for each interval trend time setting assuming no alarms or other 
events. The interval trend time setting can be set using the Set Window 
(see “Changing Instrument Parameters” on page 73). 
Overwriting Data in the GX-2012 and 
Gas Tracer
The instrument’s Data Log Overwrite setting is factory set to On so that 
when the instrument’s data logging memory becomes full, it begins to 
overwrite the oldest interval trend data with new interval trend data. 
Download data regularly to avoid over-writing data in the instrument before 
it can be downloaded. The Data Log Overwrite setting is accessible in the 
instrument’s Maintenance Mode. To set the Data Log Overwrite setting to 
Off, see the GX-2012 Operator’s Manual or Gas Tracer Operator’s Manual. 
When the Data Log Overwrite setting is set to off, the instrument will stop 
saving data when its data logging memory is full.
The Data Log Overwrite setting applies only to interval trend data. All other 
data, such as alarm trend data, event data, or calibration data, will continue 
to be saved when the memory is full. If the maximum number of each of 
these types of data has been reached, the oldest data will be overwritten.
Table 1: GX-2012 and Gas Tracer Data Logging Capacity, 5 Sensor Versions
Interval Trend Time Data Logging Hours
10 seconds 10 hours
20 seconds 20 hours
30 seconds 30 hours
60 seconds 60 hours
180 seconds (3 minutes) 180 hours
300 seconds (5 minutes) 300 hours
600 seconds (10 minutes) 600 hours










