TECHNICAL GUIDE
Cal. V115A
11/16
REMARKS ON INSPECTION AND MEASUREMENT
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Current consumption
For the whole movement : Less than 0.22 μA (with voltage supplied from a battery)
For the circuit block alone : Less than 0.16 μA (with voltage supplied from a battery)
1. Remove the solar cell holder and solar cell.
2. Remove the rechargeable battery unit, and then, reassemble the circuit block, circuit block cover
and two circuit block cover screws.
(As a result, only the rechargeable battery is removed from the movement.)
3. Apply the probes of the tester as shown in the illustration below.
Note: When applying the minus probe of the tester, take care not to short-circuit the minus probe
and circuit block cover.
4. After checking that a stable measurement is obtained with the tester connected, read the current
consumption. (As the hands move at 20-second intervals, 3 to 5 minutes may be required before a
stable measurement is obtained.)
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Value checking - coil resistance (coil blocks)
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How to measure the current consumption for the whole movement
Note: If the measurement value remains high
or unstable, shut out the light from the
movement, and make a measurement
again.
5. Wait until a stable measurement becomes available.
It usually takes 30 seconds to a few minutes for
getting a stable measurement.
μA.
of 40 μ
Ω
- 2.60K
Ω
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