Tohnichi R-BL, Operation Manual

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10
6 Precautions for Use
6-1 Solar Cell

Charge the battery before first use and after long periods of nonuse.

BL has available 3000 uses within 8 hours under 500 lux illuminance and 9.6 sec.
communication cycle.

BL can perform 300 uses on a full charge under 0 lux illuminance, No Light Conditions.

A fully charged battery will lose power after approx. 4 days if under no light conditions, 0 lux.

It is recommended to have sufficient light on the line/station to continually recharge the
internal battery cell.

There is no battery level indicator.

Keep the solar panel clean. A dirty panel decreases power generation efficiency.

Do not use a solvent such as paint thinner when you clean up the solar panel.

Recharge to full within 1 and half years even if you do not use BL to prevent the battery from
dying.
Table 1. Measure of the solar cell charging time
Illuminance
lux
Activity
Charging time
for available one use
Charging time for fully charge
200 - Approx. 3 min. Approx. 144 hours
500 Standard factory Approx. 1.5 min. Approx. 72 hours
1000
Under 60 to 70 cm
of fluorescent light, 30W
Approx. 44 sec. Approx. 35 hours
2000
Under 40 cm
of fluorescent light, 30W
Approx. 22 sec. Approx. 17 hours
1 Above table is an estimate only. It is when BL is being charged under continuous light conditions.
2 BL charges as you are using it, therefore it is not a requirement for to have a fully charged battery
before use.
Table 2. Measure of illuminance by the available uses
Illuminance
lux
No pre-charge 30 min. pre-charge 1 hour pre-charge
Available
Uses
Communication
Cycle /s
Available
Uses
Communication
Cycle/s
Available
Uses
Communication
Cycle/s
200 1500 19.2 1594 18.1 1688 17.1
500 3000 9.6 3188 9.0 3375 8.5
1000 6140 4.7 6524 4.4 6908 4.2
2000 12278 2.3 13045 2.2 13813 2.1
3 Available uses means when BLA is charged under continuous light under each level of illuminance, lux.
4 "No pre-charge" not include the time of available one use on Table 1.
5 "Communication cycle" means 8 hours, 28,800 sec. divided by available uses.