Use For Intended Purpose; Meanings Of Danger Symbols; Meanings Of Acoustic Warning Signals - Gossen MetraWatt METRAHIT EXTRA Operating Instructions Manual

Safety Precautions

1.1 Use for Intended Purpose

• The respective multimeter is a portable device which can be
held in the hand during the performance of measurements.
• Only those types of measurements described in chapter 5 may
be performed with the measuring instrument.
• The measuring instrument, including measurement cables and
plug-on test probes, may only be used up through the maxi-
mum specified measuring category (see page 62 and the table
on page 8 regarding significance).
• Overload limits may not be exceeded. See technical data on
page 56 for overload values and overload limits.
• Measurements may only be performed under the specified
ambient conditions. See page 63 regarding operating temper-
ature range and relative humidity.
• The measuring instrument may only be used in accordance
with the specified degree of protection (IP code) (see page 63).
10

1.2 Meanings of Danger Symbols

Warning concerning a point of danger
!
(attention: observe documentation!)
Warning concerning dangerous voltage at the measurement
input: U > 55 V AC or U > 70 V DC

1.3 Meanings of Acoustic Warning Signals

Voltage warning: > 1000 V (intermittent acoustic signal)
Current warning: > 10 A (intermittent acoustic signal)
Current warning: > 16 A (continuous acoustic signal)
GMC-I Messtechnik GmbH