YOKOGAWA CL255, Руководство пользователя

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ii
IM CL255
NOTE
Draws attention to information essential for understanding the operation and
features.
WARNING
● Never make measurement on a circuit above 750V AC or 1000V DC.
● Do not use the instrument in an atmosphere where any flammable or
ex-plosive gas is present.
● Do not attempt to make measurement in the presence of flammable
gas-ses, fumes, vapor or dust. Otherwise, the use of the instrument may
cause sparking, which can lead to an explosion.
● Avoid using the instrument if it has been exposed to rain or moisture or
if your hands are wet.
● Do not exceed the maximum allowabIe input of any measurement range.
● Never open the battery compartment cover when making measurement.
● Do not use the instrument if there is any damage to the casing or when
the casing is removed.
● Do not turn the Function Selector switch with plugged in test leads con-
nected to the circuit under test.
● Do not install substitute parts or make any modification to the
instrument. Return the instrument to Yokogawa Meters & Instruments or
your distributor for repair or re-calibration.
● Always switch off the instrument before opening the battery
compartment cover for battery replacement.
● Do not use the test leads that have deteriorated or are detective.
● Check the test leads continuity
WARNING
To avoid damage to the instrument or electric shock!
The restrictions on the maximum voltage level for which the CL255 testers
can be used, depend on the measurement categories specified by the
safety standards. These category specifications are formulated to protect
operators against transient impulse voltage in power lines.
Function
Maximum Allowable Input
MEASUREMENT
CATEGORY II
MEASUREMENT
CATEGORY III
A, A
AC 2000A rms
Measuring circuit voltage :
AC 750V rms
DC 1000V
AC 2000A rms
Measuring circuit voltage :
AC 600V rms
DC 600V
V, V
AC 750V rms/DC 1000V
AC 600V rms/DC 600V
Input terminal-to-
ground voltage
AC 750V rms/DC 1000V