Safety Instructions - ONNLINE 920 Manual

SAFETY INSTRUCTIONS

This meter has been designed for safe use, but must be operated with
caution. The rules listed below must be carefully followed for safe
operation.
1. NEVER apply voltage or current to the meter that exceeds the specified
maximum:
Function
V DC or V AC
mA AC/DC
A AC/DC
Frequency, Resistance,
Capacitance, Duty Cycle, Diode
Test, Continuity
Temperature
2. USE EXTREME CAUTION when working with high voltages.
3. DO NOT measure voltage if the voltage on the "COM" input jack exceeds
1000V above earth ground.
4. NEVER connect the meter leads across a voltage source while the
function switch is in the current, resistance, or diode mode. Doing so
can damage the meter.
5. ALWAYS discharge filter capacitors in power supplies and disconnect
the power when making resistance or diode tests.
6. ALWAYS turn off the power and disconnect the test leads before opening
the covers to replace the fuse or batteries.
7. NEVER operate the meter unless the back cover and the battery and
fuse covers are in place and fastened securely.
If the equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
Side 4
Input Protection Limits
Maximum Input
1000VDC/AC rms
800mA 1000V fast acting fuse
10A 1000V fast acting fuse (20A for
30 seconds max every 15 minutes)
1000VDC/AC rms
1000VDC/AC rms
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