operating manual
DL6401
DL6402
1000A AC Clamp Mete r
1000A AC/DC Clamp Meter
EN
61010-1
CAT III
600V
Safety Notices
This manual contains information that must be
followed for operating the meter safely and
maintaining the meter in a safe operating condition.
If this meter is not used in the manner specifi ed,
the protection provided may be impaired.
Warning! Warns of potential danger, refer
to the instruction manual to avoid personal
injury or damage to the meter.
Caution! Dangerous voltage. Danger of
electrical shock
Continuous double or reinforced insulation
complies with IEC536, class 11
Symbol of conformity, confi rms conformity with
relevant EU directives. The meter complies
with EMC directives (89/336/EEC). Specifi cally
standards EN 50081-1 and EN 50082-1 as well as
the Low Voltage Directive (73/23/EEC) described
in the standard EN 61010-1.
The meter has been designed in accordance with
the safety regulations for electronic measuring
instruments, EN 61010-1, IEC 61010
Voltages above 75V DC or 50V AC may constitute a
serious shock hazard.
Before using the meter check for physical damage to
the casing in particular around the connectors. If the
case is damaged do not use the meter.
Safety Notices
Check the test leads for damaged insulation or
exposed metal. Check the leads for continuity.
Replace damaged leads with identical model or
specifi cation before using the meter.
Where applicable use GS38 approved leads (not
supplied) these are available from Di-Log. When using
test leads keep fi ngers behind the fi nger guards.
Do not apply more than the rated voltage, as marked
on the meter between the terminals or between any
terminal and ground.
Before making a measurement ensure that the rotary
switch is set to the appropriate range. Do not turn the
rotary switch whilst making a measurement.
Use the appropriate terminals, function and range for
your measurements. If the value to be measured is
not known use the maximum measurement position
and reduce the range step by step until a satisfactory
reading is obtained.
Do not use or store the meter in an environment
of high temperature, humidity, fumes, vapour,
gaseous, infl ammable and strong magnetic fi eld.
The performance and safety of the use may be
compromised in such circumstances.
Disconnect circuit power and discharge all high
voltage capacitors before testing resistance,
continuity, diodes, capacitance or current.
Safety Notices
Before measuring current check the meters fuses
and turn off power to the circuit before connecting
the meter to the circuit.
Replace the battery as soon as the low battery
indicator appears. If the battery is low the meter
may give false readings.
Turn the meter power off when not in use,. Remove
the battery if the meter is in use for a long period.
Constantly check the battery as it may have leaked.
A leaking battery will damage the meter.
The meter may only be opened by a qualifi ed service
technician for calibration and repair.
Input Limits
Function Maximum Input
A AC/DC 1000A
V DC, V AC 600V DC/AC
Resistance, Diode, Continuity,
Capacitance, Frequency, Duty
Cycle, Test (DL6402 only)
Temperature °C / °F 60V DC / 24V AC
250V DC/AC
Instrument Layout
Controls and Connections
1. Current clamp
2. Clamp trigger
3. Backlight button
4. Mode select button
5. Max Hold button
6. LCD display
7. COM input terminal
8. Rotary Function switch
9. Data Hold button
10. V Ω
terminal
11. Battery compartment on rear
Display
AC DC – AC (alternating current)
and DC (direct current)
Minus sign
8.8.8.8 –
4000 count
(0 to 3999), DL6401 (0 to 1999)
measurement reading
AUTO – AutoRange mode
Diode test mode
Audible Continuity
HOLD –
Data Hold mode
°C, °F, μ, m, V, A, K, M, Ω
Units of measure list
Instrument Layout
1
2
3
4
5
6
7
11
8
9
10
Specifi cations
Function
DC Current
(DL6402 only)
AC Current
DC Voltage
AC Voltage
Resistance
(DL6401 20mΩ)
Range &
Resolution
40.00A ± (2.8% + 10 digits)
400.0A ± (2.8% + 5 digits)
1000A ± (3.0% + 5 digits)
40.00A ± (3.0% + 10 digits)
400.0A ± (3.0% + 5 digits)
1000A ± (3.0% + 5 digits
400.0mV ± (0.8% + 3 digits)
4.000V
400.0V
600V ± (2.0% + 3 digits)
400.0mV ± (0.8% + 20 digits)
4.000V
400.0V
600V ± (2.5% + 5 digits)
400.0Ω ± (1.0% + 4 digits)
4.000KΩ
400.0KΩ
4.000MΩ ± (2.5% + 3 digits)
40.00MΩ ± (3.5% + 5 digits)
Accuracy (% of Reading)
± (1.5% + 3 digits)40.00V
± (1.8% + 5 digits)40.00V
± (1.5% + 2 digits)40.00KΩ
Specifi cations
Function
Capacitance
(DL6402)
Frequency
(DL6402)
Duty Cycle
(DL6402)
Temp (type-K)
(probe accuracy
not included)
(DL6402)
Note: No Autoranging on 400mV AC Voltage Range
Range &
Resolution
40.00nF ± (5.0% reading + 100 digits)
400.0nF ± (3.0% reading + 5 digits)
4.000μF
40.00μF
100.0μF ± (5.0% reading + 5 digits)
5.000Hz ± (1.5% reading +5 digits)
50.00HZ
500.0Hz
5.000kHz
50.00kHz
100.0kHz
0.5 to 99% ± (1.2% reading + 2 digits)
Pulse width: 100μs – 100ms, Frequency: 5.000Hz~
-20 to 100.0°C ± (3.0% reading + 5°C)
-4 to 1832°F ± (3.0% reading + 7°F)
Accuracy (% of Reading)
± (3.5% reading + 5 digits)
± (1.2% reading + 2 digits)
Sensitivity: 10Vrms min.
Specifi cations
Clamp Size 30mm Opening Approx.
Diode Test
Continuity Check
Low Battery Indication
Overrange Indication “OL” is displayed
Measurements Rate 2 per second, nominal
Input Impedance 7.8MΩ (VDC and VAC)
Display 4000 count LCD
AC Current 50/60Hz (AAC)
AC Voltage Bandwidth 50/60Hz (VAC)
Operating Temperature -10°C to 50°C (14°F to 122°F)
Storage Temperature -30°C to 60°C (-22°F to 140°F)
Relative Humidity
Altitude Operating: 3000m; Storage 10,000m
Over Voltage Category III 600V
Battery One DC 9V IEC 6F22. 16404. Battery
Auto Power Off Approx. 35 minutes
Dimensions 229 x 80 x 49mm
Weight 303g
Test Current of 0.3mA typical;
Open circuit voltage 1.5V DC
Threshold <100Ω:
Test current <1mA
“
” is displayed
90% (0°C to 30°C);
75% (30°C to 40°C);
45% (40°C to 50°C);
Operation
WARNING: Read and understand all warning
and precaution statements listed in the safety
section of this operation manual prior to using
this meter. Set the function select switch to
the OFF position when the meter is not in use.
DC/AC Current Measurements
DC/AC Current Measurements
WARNING: Ensure that the test leads are
disconnected from the meter before making
current clamp measurements.
1. Set the Function switch to the 1000A or 400A
or 40A range. If the range of the measured is not
known, select the higher range fi rst then move to
the lower range if necessary.
2. Select AC or DC with the MODE button.
3. Press the trigger to open jaw. Fully enclose one
conductor to be measured.
4. The clamp meter LCD will display the reading
Correct Current
Measurement
Incorrect Current
Measurement
DC/AC Voltage Measurements
1. Insert the black test lead into the negative COM
terminal and the red test lead into the positive V
terminal.
2. Set the function switch to the V position.
3. Select AC or DC with the
4. Connect the test leads in parallel to the circuit
under test.
5. Read the voltage measurement on the
LCD display.
MODE
button.
Resistance & Continuity Measurements (DL6402)
1. Insert the black test lead into the negative
COM terminal and the red test lead into the
positive terminal.
2. Set the function switch to the
3. Use the multifunction
MODE
resistance.
4. Connect the test probe tips across the circuit or
component under test. It is best to disconnect
one side of the device under test so the rest of
the circuit will not interfere with the resistance
reading.
5. For Resistance tests, read the resistance on the
LCD display.
6. For Continuity tests, if the resistance is < 100Ω, a
tone will sound.
Ω
position.
button to select
Resistance Measurement:
Resistor
Continuity Measurement:
Buzzer Sounds
Diode Measurements (DL6402)
1. Insert the black test lead banana plug into the
negative COM terminal and the red test lead
banana plug into the positive diode terminal.
2. Turn the rotary switch to the
3. Press the
MODE
button until “ ” appears in
the display.
4. Connect the test probes to the diode under
test. Forward voltage will indicate 0.4V to 0.7V.
Reverse voltage will indicate “OL”. Shorted
devices will indicate near 0mV and an open
device will indicate “OL” in both polarities.
Red
Probe
Ω
position.
Diode
Forward Test
Black
Probe
Black
Pro
be
Reverse Test
Diode
Red
Probe
Capacitance Measurements (DL6402)
WARNING: To avoid electric shock, disconnect
power to the unit under test and discharge
all capacitors before taking any capacitance
measurements. Remove the batteries and
unplug the line cords.
1. Set the rotary function switch to the cap position.
2. Insert the black test lead banana plug into the
negative (COM) terminal.
3. Connect the test leads to the capacitor to
be tested.
4. Read the capacitance value in the display.
Capacitor
Frequency or % duty cycle measurements
1. Set the function switch to the V position.
2. Insert the black lead banana plug into the
negative COM terminal and the red test lead
banana plug into the positive V terminal.
Hz / %
3. Select Hz or % duty with the
4. Connect the test probe tips to the circuit
under test.
5. Read the frequency on the display.
button.
Measuring Frequency
on AC Supply
Temperature Measurements (DL6402)
WARNING: To avoid electric shock, disconnect
both test probes from any source of voltage
before making a temperature measurement.
TEMP
MODE
.
button.
K-Type
Wire
Probe
1. Set the function switch to
2. Insert the Temperature Probe into the negative
(COM) and the V terminals, making sure to
observe the correct polarity.
3. Select °C or °F with the
4. Connect the Temperature Probe head to the part
whose temperature you wish to measure. Keep
the probe touching the part under test until the
reading stabilizes (about 30 seconds).
5. Read the temperature in the display. The digital
reading will indicate the proper decimal point
and value.
WARNING: To avoid electric shock, be sure
the thermocouple has been removed before
changing to another measurement function.
K-Type
Adaptor
Ambient Temperature
DATA HOLD AND BACKLIGHT
To freeze the LCD meter reading, press the data
hold button. The data hold button is located on the
left side of the meter (top button). While data hold is
active, the HOLD display icon appears on the LCD.
Press the data hold button again to return to normal
operation.
Note: The HOLD feature will activate when the
Backlight is turned on. Press the
HOLD
key again to
exit Hold.
The backlight function illuminates the display and
is used when the ambient light is to low to permit
viewing of the displayed readings. Press the
HOLD
button for one second to turn the backlight on and
press the button a second time to turn the
backlight off.
MANUAL RANGING
The meter turns on in the autoranging mode. Press
the Range button to go to manual ranging. Each
press of the range button will step to the next range
as indicated by the units and decimal point location.
Press and hold the Range button for two seconds
to return to autoranging. Manual ranging does not
function in the AC Current, Diode and Continuity
check functions.
BATTERY REPLACEMENT
1. Remove the one rear Phillips head screw
2. Open the battery compartment
3. Replace the Requires one “9V” battery
(NEDA1604, 6F22 006P)
4. Re-assemble the meter
Battery
Cover
Version DL6401
Warranty & Maintenance
24 Month Warranty
Di-Log instruments are subject to stringent quality controls.
If in the course of normal daily use a fault occurs we will
provide a 24 month warranty (only valid with invoice).
Faults in manufacture and materials defect will be rectifi ed
by us free of charge, provided the instrument has not been
tampered with and returned to us unopened.
Damage due to dropping abuse or misuse is not covered by
the warranty.
Outside the warranty period we offer a full repair and
re-calibration service.
Maintenance
WARNING Do not attempt to repair or ser vice your meter
unless you are qualifi ed to do so and have the relevant
calibration, performance test and service information.
To avoid electrical shock or damage to the meter do not
get water inside the case.
Periodically wipe the case with a damp cloth and mild
detergent. Do not use chemical solvent.
Clean the input terminals with cotton bud, as dirt or moisture
in the terminals can affect readings.
Di-Log Test Equipment
28 Wheel Forge Way,
Trafford Park,
Manchester
M17 1EH, UK
tel: + 44 161 87 7 0322 fa x: + 44 161 87 7 1614
email: sales@dilog.co.uk website: www.dilog.co.uk
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