1. SAFE TY RULES
•
This meter is designed for indoor use at temperatures between 0°C to 40°C and
altitudes up to 2,000m.
•
To ensure that the meter is used safely, follow all safety and operating instructions in
this operation manual. If the meter is not used as described in this operation manual,
the safety features of this meter might be impaired.
•
Do not use the meter if the meter or test leads look damaged ,or if you suspect that
the meter is not operating properly.
•
When using the instrument, keep your fi ngers behind the fi nger guards on the plastic
casing and probes.
•
Disconnect the live test lead before disconnecting the common test lead.
•
Make sure power is off before cutting, desoldering, or breaking the circuit wires. Small
amounts of current can be dangerous.
•
Do not apply more than 600 VDC or 600V AC rms between a terminal and ground.
•
To avoid electrical shock, use CAUTION when working above 60V DC or 25V AC
rms. Such voltages pose a shock hazard.
•
Never make measurements with the battery cover off.
•
To avoid electrical shock or damage to the meter, do not exceed the input limits.
2. INTERNATIONAL SYMBOLS
Important information
Dangerous Voltages
see manual
Continuity
AC
Ground
DC
Double Insulation
3. TECHNICAL SPECIFICATIONS
3.1 General Specifi cations
Display:
3-3/4 digits LCD, max. of 3999 display
with
decimal point and engineering units
Polarity:
Automatic, (-) negative polarity indication
Zero adjustment:
Automatic
Sample rate:
0.5 Sec.
Over range indication: Reading
“ ”
is displayed
Power:
9-volt battery type NEDA 1604, IEC6F22
Battery life:
Approx. 50 hours. (w/ alkaline batteries)
Dimension:
141 x 69 x 36 mm.
Weight:
Approx. 160g (including battery).
Accesories:
User’s Manual, Alligator Clip, Probes
Cups and 9V alkaline battery
3.2 Electrical Specifi cations
•
The mark next to the probe tip, is a warning that the input
voltage should not exceed the indicated values. This is to pre-
vent personal injuries and damage to the internal circuitry.
•
The function switches should be set to the function which you
want to test before operation.
•
Accuracies are ±(% of r number of least signi
fi
cant
digits) at 23°C ±5°C, less than 75% RH.
4. OPERATION
4.1 Instrument Description
1) Case
2) 3-3/4 Digit LCD display
3) ON/OFF and Range switch
4) Function switch
5) Fixed test lead with probe
6) Fixed probe tip and fuse cap
7) Battery cover
8) Display hold push button (back of the unit)
9) Probes cups
10) Alligator clip
Function
Range
Accuracy
Input
Impedance
Remarks
Overload
Protection
DC Voltage
4000mV, 60V
600V
0.8%+1
10 M
-
600 Vp-p
AC Voltage
4000mV, 60V
600V
1.2%+3
10 M
40~400Hz
600 Vp-p
DC Current
40 - 400 mA
1.2%+3
-
-
400 mA/
250V Fuse
AC Current
40 - 400 mA
1.2%+5
-
40~400Hz
400 mA/
250V Fuse
4.2 Display Description
4.3 Measurement Procedures
CAUTION
: Maximum Input Voltage is 600Vrms,do not exceed
this rating to avoid personal injuries or damage to
the instrument. The range FUNCTION/RANGE
switch should be set to the range you want to test
before the operation.
CAUTION
: Always ensure that the correct terminals are used for
the type of measurement to be made. Avoid making
connections to “live” circuits whenever possible.
When making current measurements ensure that
the circuit is not “live” before opening it in order to
connect the test leads.
Function
Range
Accuracy
Input
Impedance
Remarks
Overload
Protection
Resistance
400
, 4k
,
40k
,400k
4M
1.0%+2
-
1.2 mA
max. test
current
250 Vp-p
40 M
1.5%+2
-
0.47 mA
max. Test
current
250 Vp-p
Diode Test
Test Current:1.0± 0.6mA
Test Voltage: 3.2 V Max.
250 Vrms
Continuity
Beeps when < 100
Ω
3VDC Max. Test Voltage
250 Vrms
Logic level
Logic High > 2.0V
Logic Low < 0.8V
250 Vrms
8.8.8.8
DH
HI
LO
MK
Ω
mVA
Replace battery
Data hold
TTL logic status
Continuity
beeper enable
Measurement units
Digital reading
AC
Neg. polarity
DC
1
2
3
4
8
6
9
10
5
7
8.8.8.8
DH
HI
LO
MK
:
mVA
CT
8022