Delta SS1-UM-1.05 User Manual download pdf (Page 65)

SunScan User Manual v 1.05 Technical Reference section •

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• 65

Workabout battery management

When you receive the Workabout, the installed battery pack may not be fully

charged. Connect the Workabout to the Docking unit and Charger immediately, so

that charging can proceed whilst you are learning to use the SunScan.

The charger is a trickle-charger and may take 14 hours to fully recharge the battery

pack. A fully charged Ni-Cd battery should easily give 2 or 3 full days use in the

field. You must then recharge the Workabout overnight if you want to continue with

daily use in the field.

Warning! In general, Ni-Cd batteries prefer to be fully discharged before being

recharged. Do not leave them continuously trickle-charging.

If you ordered a spare Ni-Cd battery pack it will not be charged initially. Charge it as

soon as you have the opportunity, so that you can replace an exhausted one without

delay.

To gain access to the batteries, open the battery drawer by pressing the black button

at the top left corner of the Workabout very firmly.

The Workabout will run equally well from 2 AA alkaline cells. Carry some of these

with you if there is any chance that your Ni-Cd will become exhausted when no

mains power is available for recharging.

Warning! Don't leave the Workabout without a main battery for more than a day or

two. Its back-up cell will last for several days only.

Beyond this time you may lose data in the internal memory (but Flashcard data will

not be affected).

If you get low battery warnings, even after fully charging the Ni-Cd pack, these can

be reset by removing and then replacing the pack.

Checking the desiccant

Both the SunScan probe and Beam Fraction sensor contain desiccant packs to

prevent internal condensation of moisture when they are used outside. The dryness

of the desiccant is indicated by a coloured panel on the outside of each housing. Blue

indicates dry, pink indicates that renewal is needed. The Workabout does not contain

desiccant.

Refreshing the desiccant

The desiccant pack can be regenerated by heating. Remove the pack from the probe

or BFS and heat the pack in an oven for a few hours at about 140ºC, then allow it to

cool down away from moisture before reinstalling it.

Access to the probe handle is as described above for probe battery changing. To

access the Beam Fraction sensor, prise upwards the red plastic strips on the lid, then

undo the four cross-head screws that are revealed.

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Delta SS1-UM-1.05 User Manual Page 65