Eagle Home Products Eagle Series User Manual download pdf (Page 74)

68 • Appendix F: Eagle Tank Tester Model Eagle Instruction Manual

Dilution ﬁtting (1:1)

CAUTION:When measuring oxygen readings, remove the dilution ﬁtting or

use your ﬁnger to seal the small dilution hole on the side of the

dilution ﬁtting.

The standard combustible gas sensor requires oxygen to operate. In

environments where there is not enough oxygen to operate the

combustible gas sensor, (for example a tank purged with an inerting

gas), the 1:1 dilution ﬁtting adds sufﬁcient oxygen by blending

ambient air with the incoming sample. The standard dilution ﬁtting

dilutes at a ratio of 1:1 (one part air to one part sample).

To attach the dilution ﬁtting:

1. Attach the dilution ﬁtting’s quick disconnect ﬁtting to the Eagle’s

inlet ﬁtting.

2. Attach the hose to the opposite end of the dilution ﬁtting.

NOTE: When using the dilution ﬁtting, multiply the combustible gas

reading (LEL or PPM) by 2 to determine the actual

combustible gas concentration. Always remove the dilution

ﬁtting or seal the dilution hole to measure for oxygen.

Alarms

The Eagle Tank Tester model has two alarms for oxygen. They are

factory-set at 5.0% by volume (increasing) and 19.5% by volume

(decreasing).

The increasing alarm is used to monitor a purged vessel to alert you to

a rising oxygen condition. The decreasing alarm is generally used for

conﬁned space entry to warn you of dangerously low breathing

levels.

ANY oxygen level is either above or below one of these alarm levels,

so the Eagle Tank Tester version will go into alarm when ﬁrst turned

on. To silence the alarm, press the RESET button. The audible alarm

silences, but the alarm lights continue to ﬂash and the display screen

continues to indicate an oxygen alarm. If one of the alarm levels is

newly exceeded, the audible alarm sounds again.

To eliminate an oxygen alarm that is not being used:

Either the increasing or decreasing oxygen alarm can be turned off in

Setup mode (see “Updating the Alarm Point Settings” on page 32.)

Turning off the alarm clears the alarm lights and display of an

unnecessary alarm.

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Eagle Home Products Eagle Series User Manual Page 74