Teledyne 3110 – Portable Trace/Percent Oxygen Analyzer, unapproved version - Manual (Page 18)

Installation Model 3110
18 Teledyne Analytical Instruments
The unit can operate continuously for approximately 4 days on a set
of fully charged batteries. If more frequent charging is required, the
batteries are approaching the end of their useful life and should be
replaced. See Battery Replacement in Section 4.3 of this manual.
A low battery condition is indicated by a blinking red Low Battery
LED on the front panel. This will also cause the display to flicker along
with the blinking LED due to the power drain and low battery condition.
At this point the unit should be removed from service and the batteries
recharged.
Figure 2-1: Model 3110 Rear Panel
2.2 Gas Connections
The customer must provide a means of controlling the pressure and
flow rate of the sample and zero gas. For positive pressure applications,
TAI suggests a simple throttle valve installed in the sample line between
the sample point and the analyzer. The flow rate should be limited to
between 0.2 and 2.5 SCFH. The sample in port is used for both sample