Sanwa CD770, Instruction Manual, Page: 33 / 56

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5. Never use the meter near equipment which generates strong
electromagnetic waves or is charged.
6. Never use the meter if the meter or test leads are damaged or broken.
7. Never use the meter with the case or battery lid removed.
8. Be sure to use the fuse of the specifi ed rating and specifi cation.
9. During measurement, do not hold the test pin side of the
fl ange of the test leads.
10. To start measurement, fi rst connect the ground side (black test lead).
When disconnecting, the ground side must be disconnected last.
11. During measurement, do not change the meter to another
function or range nor replace the plugs to other terminals.
12. Before starting measurement, make sure that the function and
range are properly set.
13. Never use the meter when it is wet or with wet hands.
14. Be sure to use the specifi ed type of test leads.
15. Never attempt repair or modification, except for battery and
fuse replacement.
16. Inspect the meter at least once a year.
17. This meter is for indoor use only.
1-3 Overload Protection
The maximum rated input value and overload protection have
been established for the input terminals of each function.
DC
･
AC 600 V
0.5 A/250 V fuse
Breaking capacity 1.5 kA
Function Input Terminal Max. Rated Input Value Max. Overload Protection Input Value
V Hz
DC
･
AC 400 μA
Do not input a voltage .
DC
･
AC 600 V
Do not input a
voltage or current.
and
and
DC
･
AC 400 mA
Do not input a voltage .
1. Correct measurement may not be performed when using the
meter in the ferromagnetic / intense electric field such as places
near a transformer, a high-current circuit, and a radio.
2. The meter may malfunction or correct measurement may not be
performed when measuring special waveform such as that of the
inverter circuit.
CAUTION