Epson SOLAR Series Specification And Drawing page 11

Cal.
VS75B
1. Attention for solar cell unit
Pay attention not to touch and scratch the surface of the solar cell.
2. Dial transparency rate
Keep the transparency rate of the dial more than 30%.
(Effective aperture is φ27mm)
Each elements of solar cell must be kept the transparency rate.
3. The guideline of charging time is as in below
Illumination
(Lx)
700
3,000
10,000
100,000
4. How to set the secondary battery unit
・ Please set the exclusive secondary battery unit.
(The secondary battery is Titanium-lithium-ion battery without any environmentally harmful substances.)
・ Please install the plus part of the secondary battery towards inside of the watch.
・ When installing or changing the secondary battery unit, it is recommended to remove three secondary
battery clamp screws first, then remove the secondary battery clamp not to damage the movement
parts.
If you install the secondary battery unit without removing the secondary battery clamp, please install
the secondary battery unit from [→] direction as illustrated below Fig.[1].
・ Secondary battery unit guide must be connected to "Guide pole". (Refer to the Fig.[1] in below.)
・ Check whether the secondary battery lead plate is surely connected to the secondary battery minus
pattern.
・ Install the secondary battery unit under the circuit block cover as illustrated below Fig.[1] and Fig.[2].
Secondary battery minus pattern
Secondary battery clamp
5. To do system reset
・ System-reset and adjusting the polarity of each step rotors is required as below after installing
secondary battery unit.
Short the circuit pattern "AC" to the secondary battery clamp for more than 2 seconds.
Short the circuit pattern "B" to the secondary battery clamp for more than 2 seconds at 2nd click.
Attention-01
Source of light
Inside the office
A fluorescent lamp
Sun light
B
Fig.[1]
A
Environment (Approx.
Hours)
－
30W 20cm 65
Cloudy 18
Fine weather 5
Condition A : Time required for full charge
Condition B : Time required for steady operation
Condition C : Time to charge 1 day of power
Guide pole
A
24/Sep./'19
Date :
Rev. : 01
(Dial transparency rate = 30%)
B
(Approx.
(Approx.
Hours)
Minutes)
35
8
2.5
1
Fig.[2] A section
C
90
20
6
2
P. 9-01