RND lab 355-00011, Руководство пользователя

Страница: 2 / 17

3
EN EN
2
SAFETY WARNINGS
The following safety information must be observed to insure maximum personal safety
during the operation at this meter:
• Measurements beyond the maximum selected range must not be attempted.
• Extreme care must be taken when measuring above 50 V, especially on live
bus-bars.
• To measure voltage, the instrument must not be switched to a current or resistance
range, or to the diode check or buzzer position.
• Circuits must be de-energised and isolated before carrying out resistance tests.
• The rotary selector switch must only be turned after removing test connections.
• All external voltages must be disconnected from the instrument before removing
the battery.
• Test leads and prods must be in good order, clean, and with no broken or
cracked insulation.
• UK Safety Authorities recommend the use of fused test leads when measuring voltage
on high energy systems.
• Replacement fuses must be of the correct type and rating.
• The instrument must not be used if any part of it is damaged.
• Warnings and precautions must be read and understood before an instrument is
used. They must be observed during the operation of this instrument.
Symbols used on this instrument are:
Caution: refer to accompanying notes.
This symbol indicates that the operator must refer to an explanation in the
Operating Instructions to avoid personal injury or damage to the meter.
Caution: risk of electric shock
This WARNING symbol indicates a potentially hazardous situation, which if not
avoided, could result in death or serious injury.
This CAUTION symbol indicates a potentially hazardous situation, which if not
avoided, may result damage to the product.
This symbol advises the user that the terminal(s) so marked must not be
connected to a circuit point at which the voltage with respect to earth ground
exceeds (in this case) 1000 VAC or VDC.
Equipment protected throughout by Double Insulation (Class II)
Equipment complies with current EU directives.
SYMBOLS AND ANNUNCIATORS
Continuity
Low Battery
Diode test
Data Hold
AutoRanging
Alternating Current or Voltage
Direct Current or Voltage
Volts
Current range
OPERATION
To turn on the instrument turn the range knob from the OFF position to any
measurement range.
Note:
For best battery life ALWAYS turn the function switch to the OFF position when the meter is
not in use. This meter has Auto OFF that automatically shuts the meter OFF if 30 minutes
elapse between uses.
NOTE: On some low AC and DC voltage ranges, with the test leads not connected to a
device, the display may show a random, changing reading. This is normal and is caused by
the high-input sensitivity. The reading will stabilize and give a proper measurement when
connected to a circuit.