Circuit-test DMR-6700 Manuale utente
USER'S MANUAL
Multimeter
True RMS
DMR-6700
CIRCUIT-TEST ELECTRONICS
www.circuittest.com
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Introduction
Safety
This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance,
Frequency (electrical & electronic), Diode Test, and Continuity plus Thermo-
couple Temperature. It features a waterproof, rugged design for heavy duty use.
Proper use and care of this meter will provide many years of reliable service.
This symbol adjacent to another symbol, terminal or operating
device indicates that the operator must refer to an explana-
tion in the Operating Instructions to avoid personal injury or
damage to the meter.
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 situ-
ation, 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
This symbol adjacent to one or more terminals identies them
as being associated with ranges that may, be subjected to
particularly hazardous voltages. For maximum safety, the meter
and test leads should not be handled when these terminals
are energized.
Double Insulation.
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PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY
OVERVOLTAGE CATEGORY I
Equipment of OVERVOLTAGE CATEGORY I is equipment for connection
to circuits in which measures are taken to limit the transient overvoltages
to an appropriate low level.
Note – Examples include protected electronic circuits.
OVERVOLTAGE CATEGORY II
Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equip-
ment to be supplied from the xed installation.
Note – Examples include household, ofce, and laboratory appliances.
OVERVOLTAGE CATEGORY III
Equipment of OVERVOLTAGE CATEGORY III is equipment in xed
installations.
Note – Examples include switches in the xed installation and some equipment
for industrial use with permanent connection to the xed installation.
OVERVOLTAGE CATEGORY IV
Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of
the installation.
Note – Examples include electricity meters and primary over-current protec-
tion equipment
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SAFETY INFORMATION
Caution and proper guidelines must be followed for personal and product safety.
Read this instruction manual carefully and completely before using the meter.
Lack of caution or poor safety practices can result in serious injury or death.
• Always start with power off. Set the function switch to the correct setting
before making any measurements and do not change position of the func-
tion switch during measurements.
• Do not use the meter if the meter or test leads look damaged or if there is
doubt that the meter is not operating properly.
• When using the test probes always keep ngers behind the nger guards.
Never touch the exposed probe tip.
• Always consider circuits to be energized. Never assume any equipment
to be de-energized.
• Use caution when working above 35VDC or 25VAC RMS as these volt-
ages pose a shock hazard.
• Never connect unit to AC or DC powered circuits when the function switch
is set to resistance, diode check or continuity ranges.
• Always disconnect the power when performing resistance, or diode tests.
• Always turn off the power to the circuit under test before unsoldering or
breaking the circuits. Small amount of current can be dangerous.
• Disconnect test leads before removing the batteries or the fuse.
• Do not operate the unit unless the case is completely closed.
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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 specied
maximum:
Input Limits
Function Maximum Input
V DC or V AC 1000VDC/AC rms
mA AC/DC 400mA AC/DC
A AC/DC 10A AC/DC (20A for 30 seconds
maximum every 15 minutes)
Frequency, Resistance, Capacitance,
Diode Test, Continuity 600VDC/AC RMS
2. USE EXTREME CAUTION when working with high voltages.
3. DO NOT measure voltage if the voltage on the "COM" input jack ex-
ceeds 600V 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 lter 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 open-
ing 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.
8. If the equipment is used in a manner not specied by the manufacturer,
the protection provided by the equipment may be impaired.
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Controls and Jacks
1. 4,000 count LCD display
2. RANGE button
3. Hz and % button
4. Mode button
5. Data Hold button
6. RELATIVE button
7. Backlight button
8. Function switch
9. 10A input jack
10. μA, mA input jack
11. Positive input jack
12. COM input jack
Note: Tilt stand and battery compartment are on rear of unit.
AUTO Autoranging
HOLD Display hold
REL Relative
Diode test
Continuity
ºC Degree Celsius
ºF Degree Fahrenheit
DC Direct current
AC Alternating current
Battery status
n nano (10-9) (capacitance)
μ micro (10-6) (amps, cap)
m milli (10-3) (volts, amps)
A Amps
V Volts
k kilo (103) (ohms)
F Farads (capacitance)
Symbols and Annunciators
M mega (106) (ohms)
Ω Ohms
Hz Hertz (frequency)
% Percent (duty ratio)
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Specications
Enclosure Double molded, waterproof
Shock (Drop Test) 6.5 feet (2 meters)
Diode Test Test current of 0.3mA maximum, open circuit
voltage 1.5V DC typical
Continuity Check Audible signal will sound if the resistance is less
than 100Ω (approx.), test current <0.3mA
Temperature Sensor Requires type K thermocouple
Input Impedance 7.8MΩ
AC Response True RMS
ACV Bandwidth 40Hz to 400Hz
Crest Factor ≤3 at full scale up to 500V, decreasing linearly to
≤1.5 at 1000V
Display 4,000 count LCD with backlit
Over range indication “OL” is displayed
Auto Power Off 30 minutes (approximately) with disable feature
Polarity Automatic (no indication for positive); Minus (-)
sign for negative
Measurement Rate 2 times per second, nominal
Low Battery Indication “ ” is displayed if battery voltage drops below
operating voltage
Battery One 9 volt (NEDA 1604) battery
Fuses mA, μA ranges; 0.5A/1000V ceramic fast blow,
6.32 x 32mm A range; 10A/1000V ceramic fast
blow, 10 x 38mm
Operating Temperature 41°F to 104°F (5°C to 40°C)
Storage Temperature -4°F to 140°F (-20°C to 60°C)
Operating Humidity Max 80% up to 87°F (31°C) decreasing linearly
to 50% at 104°F (40°C)
Storage Humidity <80%
Operating Altitude 7000ft. (2000meters) maximum.
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Weight 0.753lb (342g) (includes holster).
Size 7.36” x 3.2” x 2.0” (187 x 81 x 50mm) (includes
holster)
Safety / Approvals This meter is UL and CUL approved and con-
forms to IEC61010-1 for Overvoltage Category
CAT IV 600V and CAT III 1000V
Function Range Resolution Accuracy
DC Voltage
400mV 0.1mV ±(0.5% reading + 2 digits)
4V 0.001V
±(1.2% reading + 2 digits)40V 0.01V
400V 0.1V
1000V 1V ±(1.5% reading + 10 digits)
AC Voltage
400mV 0.1mV ±(2.0% reading + 10 digits)
4V 0.001V
±(2.0% reading + 5 digits)40V 0.01V
400V 0.1V
1000V 1V ±(2.5% reading + 5 digits)
DC Current
400uA 0.1uA ±(1.0% reading + 3 digits)
4000uA 1uA
±(1.5% reading + 3 digits)40mA 0.01mA
400mA 0.1mA
10A 0.01A ±(2.5% reading + 5 digits)
AC Current
400uA 0.1uA ± (2.5% reading + 10 digits)
4000uA 1uA
±(2.5% reading + 5 digits)40mA 0.01mA
400mA 0.1mA
10A 0.01A ±(3.0% reading + 7 digits)
Note: Accuracy is stated at 65ºF to 83ºF (18ºC to 28ºC) and less than 75% RH.
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Function Range Resolution Accuracy
Resistance
400Ω 0.1Ω ±(1.2% reading + 4 digits)
4kΩ 0.00k1Ω ±(1.0% reading + 2 digits)
40kΩ 0.01kΩ
±(1.2% reading + 2 digits)400kΩ 0.1kΩ
4MΩ 0.001MΩ
40MΩ 0.01MkΩ ±(2.0% reading + 3 digits)
Capacitance
4nF 0.001nF ±(5.0% reading +0.5nF)
40nF 0.01nF ±(5.0% reading + 7 digits)
400nF 0.1nF
±(3.0% reading + 5 digits)4uF 0.001uF
40uF 0.01uF
100uF 0.1uF ±(5.0% reading + 5 digits)
Frequency
5.999Hz 0.001Hz ±(1.5% reading + 1 digit)
59.99Hz 0.01Hz
599.9Hz 0.1Hz
±(1.2% reading + 3 digits)
5.999kHz 0.001kHz
59.99kHz 0.01kHz
599.9kHz 0.1kHz
5.999MHz 0.001MHz ±(1.5% reading + 4 digits)
9.999mHz 0.001MHz
Sensitivity: 0.5Vrms <500kHz; 3Vrms >500kHz
Duty Cycle 0.1%~99.9% 0.1% ±(1.2% reading + 2 digits)
Pulse width: 100us to 100ms, Frequency: 5Hz to 150kHz
Temperature -20°to 750°C 1°C ±(3% reading + 5°C/9°F)
-4°to 1382 °F 1°F
Note: Accuracy specications consist of two elements:
• (% reading) – This is the accuracy of the measurement circuit.
• (+ digits) – This is the accuracy of the analog to digital converter.
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Operating Instructions
WARNING: Risk of electrocution. High-voltage circuits, both AC and DC,
are very dangerous and should be measured with great care.
DC Voltage Measurements
CAUTION: Do not measure DC voltages if a motor on the circuit is being
switched ON or OFF. Large voltage surges may occur that can damage
the meter.
1. Set the function switch to the position.
2. Press MODE (if required) so DC appears on the
display.
3. Insert the black test lead banana plug into the nega-
tive COM jack. Insert the red test lead banana plug
into the positive V jack.
4. Touch the black test probe tip to the negative side of
the circuit. Touch the red test probe tip to the positive
side of the circuit.
5. Read the voltage in the display.
1. ALWAYS turn the function switch to OFF position when the meter is not
in use.
2. If “OL” appears in the display during a measurement, the value exceeds
the range you have selected. Change to a higher range.
Indice
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