Specifications; Important; For Your Safety - Gardner Bender GMT-312 Manuel D'utilisation

GMT-312 5-09 manual.qxp

2. Specifications

Ranges: 12 measuring ranges
DC Voltage: 10-50-150-300 Volts
AC Voltage: 10-50-150-300 Volts
DC Current (Milliamperes): 0.5-50-150mA
Resistance (Ohms): Rx1K (resistance indicated multiplied by
1000)
1 Megohm max
Decibels: -20dB to +52dB on AC voltage ranges
Accuracy: DC voltage, mA = ±4% full scale of range
AC voltage = ±5% full scale of range
Resistance = ±4° arc of scale length
Sensitivity: 2000 ohms per volt DC and AC
Function/Range Switch: 5 functions
13 positions
12 measuring ranges
Zero Ohms Adjustment Dial: Located on the left side of the housing;
adjustment dial is used to zero the needle
indicator on the ohms scale while
shorting the test leads together.
Mechanical Zero
Adjustment Screw: Located directly below the center of the
meter scale; adjust needle indicator to
read zero at the left side of the scale
before taking any measurement.
Recessed Input Jacks: Negative (-) input jack for black test lead,
positive (+) input jack for red test lead.
Fuse Type: F200mA, 250V, GB GF-0306
Power Source: One 1.5V AA size (non-rechargeable) battery
Test Lead Type: ETL, cETL, CATII 300V 1A
Size (L X W X H): approx 93mm X 62mm X 32mm
Weight: approx 117g (including battery)
Agency Approvals: ETL cETL, CATII 300V
Operating Temperature: 64F-77F (18°C-25°C)
Note: Accuracy is given for one year, at 23°C ±
2° RH<60%
This multimeter was designed to be safe at least under the following conditions
Indoor Use
Altitude: up to 2000m
Pollution degree: 2
Ingress Protection Degree: IP20

Important:

Read this operators manual thoroughly before
using this multimeter. This manual is intended
to provide basic information regarding this
multimeter and to describe common test
procedures which can be made with this unit.
Many types of appliance, machinery and
other electrical circuit measurements are
not addressed in this manual and should
be handled by experienced service
technicians.
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WARNING
!
using this multimeter. Improper use of
this meter can result in severe damage to
property, severe personal injury or death.
Follow all instructions and suggestions in
this operators manual as well as normal
electrical safety precautions. Do not use
this multimeter if you are unfamiliar with
electrical circuits and proper test procedures.

2.1 For Your Safety

The marking "
Caution, risk of electric shock.
The marking " " on the multimeter represents Caution,
risk of danger, important information, refer to the manual.
In order to find out the nature of the potential HAZARD
and any actions which have to be taken consult the
manual in all cases where " " is marked.
The marking " " on the multimeter represents
Functional earth terminal.
The marking "
Equipment protected throughout by DOUBLE
INSULATION or REINFORCED INSULATION.
Measurement category II is for measurements
performed on circuits directly connected to the low
voltage installation. Examples are measurements
on household appliances, portable tools and
similar equipment.
1)Use extreme caution when checking
electrical circuits.
2)
WARNING
!
work areas when working with electricity.
Wear rubber-soled boots or shoes.
3)
WARNING
!
Use extreme caution when
" on the multimeter represents
" on the multimeter represents
Do not stand in wet or damp
Do not apply more voltage
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