Sea-Bird Electronics SBE 38 Bedienungsanleitung PDF herunterladen (Seite 94)

Manual revision 006 Section 5: Routine Maintenance and Calibration SBE 19plus V2

Replacing / Recharging Batteries

Leave the batteries in place when storing the SBE 19plus V2 to prevent

depletion of the back-up lithium batteries by the real-time clock. Even

exhausted main batteries will power the clock (20 microamperes) almost

indefinitely. If the 19plus V2 is to be stored for long periods, replace the

batteries yearly to prevent battery leakage (which could damage the

19plus V2).

Replacing Alkaline Batteries

The 19plus V2 uses alkaline D-cells (Duracell MN1300, LR20), dropped into

the battery compartment.

1. Remove the battery end cap (end cap without connectors):

A. Wipe the outside of the end cap and housing dry, being careful to

remove any water at the seam between them.

B. Unthread the end cap by rotating counter-clockwise (use a wrench on

the white plastic bar if necessary).

C. Remove any water from the O-ring mating surfaces inside the

housing with a lint-free cloth or tissue.

D. Put the end cap aside, being careful to protect the O-ring from

damage or contamination.

2. Remove the battery cover plate from the housing:

A. Remove the three Phillips-head screws and washers from the battery

cover plate inside the housing.

B. The battery cover plate will pop out. Put it aside.

3. Turn the 19plus V2 over and remove the batteries.

4. Install the new batteries, with the + terminals against the flat battery

contacts and the - terminals against the spring contacts.

5. Reinstall the battery cover plate in the housing:

A. Align the battery cover plate with the housing. The posts inside the

housing are not placed symmetrically, so the cover plate fits into the

housing only one way. Looking at the cover plate, note that one screw

hole is closer to the edge than the others, corresponding to the post

that is closest to the housing.

B. Reinstall the three Phillips-head screws and washers, while pushing

hard on the battery cover plate to depress the spring contacts at the

bottom of the battery compartment. The screws must be fully

tightened, or battery power to the circuitry will be intermittent.

6. Check the battery voltage at BAT + and BAT - on the battery cover plate.

It should be approximately 13.5 volts.

7. Reinstall the battery end cap:

A. Remove any water from the O-rings and mating surfaces with a lint-

free cloth or tissue. Inspect the O-rings and mating surfaces for dirt,

nicks, and cuts. Clean or replace as necessary. Apply a light coat

of o-ring lubricant (Parker Super O Lube) to O-rings and

mating surfaces.

B. Carefully fit the end cap into the housing and rethread the end cap

into place. Use a wrench on the white plastic bar to ensure the

end cap is tightly secured.

Verify that the magnetic switch on the conductivity cell guard is in the Off

position, so the 19plus V2 will be in quiescent (sleep) state.

Remove Phillips-head

screws and washers

Unthread cap by rotating

counter-clockwise

Note:

If changing from alkaline to Ni-Cad

or NiMH batteries, or vice versa,

send BatteryType= to indicate the

new battery type.

Alkaline D-cell

(MN1300, LR20)

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