Edgetech 4380 MULTIBEACON, User Hardware Manual

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3-8 SECTION 3: SETUP & ACTIVATION
MODEL 4380 MULTIBEACON
0014296_REV_B
3. Close the manifold valve to the instrument and allow the instrument to sit of for 15 minutes.
Check the gauge afterwards and verify that the vacuum did not change. This step is performed to
detect gross O-ring problems.
4. Open the manifold valve to the instrument’s purge port and:
a. Backfill the housing with dry nitrogen gas. Do not 5 PSIG.
b. Draw a -3 PSIG vacuum on the instrument. Do not exceed -3PSI.
c. Repeat this process four times.
d. After drawing the final vacuum in this process, quickly insert the purging plug before the
-3 PSIG vacuum is lost.
NOTE:
When purging the instrument, be careful not draw more than -5
PSIG vacuum, as exceeding this figure can damage the batteries and/or
increase the chance of arcing which in turn can result in instrument
failure.
CAUTION!
Ensure that the purge plug is properly installed prior to deploying (i.e.,
after purging) the beacon.
3.2 Deployment
The following sub-sections detail how to power, activate, and mount the unit.
3.2.1 Power Considerations
The 4380 Multi-Beacon can be powered either externally or with its battery packs. See the following sub-
sections for details:
3.2.1.1 External Power Sources
The 4380 series beacons can be operated for an unrestricted deployment time life if it is connected to an
external 24 to 55 VDC source capable of sourcing 1.0 Amp. When connected this way, the Lithium ION
battery will be periodically topped off by the charge management circuitry in the beacon. See
Figure A-3
for proper connections.