1
36C
DMM OPERATOR’S MANUAL
1.
Overview
The multimeter is characterized at slim size, portable, stable performance and
anti-dropping capacity. Using 3½ digits LCD monitor with character 16mm high,
they offer clear readings. With overall circuitry design centering on
large-scale IC A/D converters in conjunction and over-load protection circuit,
the meters give excellent performance and exquisite making as a handy utility
instrument.
The meters can be used to measure DC & AC voltage, DC & AC current,
resistance,
capacitor,
battery
positive diode voltage fall, hfe parameters for
transistor and Continuity.
2. Panel Layout
①
LCD Display: 3½ digits, character 16mm high
②
Data-hold Switch (HOLD)
③
Back Light Button Switch: Press this button to switch on back light If the
dark circumstance light makes the reading difficulty when measuring, the light
will be automatically turned off in 5 seconds. Press again to switch it on again.
If the battery is in weak power, the light will be dimmed.
④
Rotary Switch: use this switch to select functions and ranges
⑤
V
Ω
mA Cx+ Input Jack
、
Cx- Input Jack
、
COM Input Jack
3. Safety Information
3-1 The meters are designed according to IEC-1010 concerning electronic
measuring instruments with an over-voltage category (CAT
Ⅱ
) and pollution
2.
3-2 Follow all safety and operating instructions to ensure that the meter is
used safely and is kept in good operating condition.
3-3 safety symbols:
important safety information, refer to the operating manual.
Dangerous voltage may be presence.
Double insulation (protection Class II)
4. Special Cautions for Operation
4-1 The meters can be safe only according to standard procedures when used
in conjunctions with the supplied test leads. To replace damaged test leads
with only the same model or same electric specifications.
4-2 To avid risk of electric shock, do not use the meters before the cover is in
place.
4-3 The range switch should be right position for the testing.
4-4 To avoid electric shock and damaging the instruments, the input signals
are forbidden to exceed the specified limits.
4-5 When measuring TV set or switched power, attention should be paid to
the possible pulses that may bring destruction to the circuit.
4-6 Range switch position is forbidden to be changed at random during
measurement.
4-7 Take caution against shock in the course ot measuring voltage higher
than DC 60V & AC 30V.
4-8 Protection fuse should be replaced only with same type and same
specification.
5. GENERAL SPECIFICATIONS
5-1 Max Voltage between input terminal and Earth Ground: CAT
Ⅱ
600V
5-2 Over-range Indication: display “1” for the significant digit.
5-3 Automatic display of negative polarity “_” .
5-4 Low Battery Indication: „
‟ displayed
5-5 Max LCD display: 1999 (31/2 digits)
5-6 Fuse protection: F-200mA/250V (Ø 5x20mm)
5-7 Power Supply: 9V battery, 6F22 or NEDA 1604
5-8 Operating Temp.: 0
℃
to 40
℃
(relative humidity <85%)
5-9 Storage Temp.:-10
℃
to 50
℃
((relative humidity <85%)
5-10 Guaranteed precision Temp.: 23
±
5
℃
(relative humidity <85%)
5-11 Dimension: 143x75x32mm
5-12 Weight: approx. 200g (including battery)
6. Testing Specifications
Accuracy is specified for a period of year after calibration and at 18
℃
to 28
℃
(64
℉
to 82
℉
) with relative humidity to 75%.
6-1
DC Voltage
range
resolution
accuracy
200mV
0.1mV
±
(0.5% of rdg + 17 digit )
20V
10mV
±
(0.8% of rdg +18 digits)
600V
1V
±
(0.8% of rdg + 18 digits)
-- Input Impendence: 10M
Ω
- Overload protection: 250V for 200mV range, effective DC or AC 600V for
other ranges
6-2 AC Voltage
range
resolution
accuracy
200V
100mV
±
(1.2% of rdg + 20 digits)
600V
1V
±
(1.2% of rdg +20 digits)
-- Frequency Range: 40 to 400Hz
-- Response: average, calibrated in rms of sine wave
6-3 DC Current
range
Resolution
accuracy
200mA
100μA
± (1.5% of rdg +20 digits)
10A
10mA
± (3.0% of rdg +20 digits)
-- Overload protection: F 200mA/250V fuse 10A up to 10 seconds
6-4 AC Current
range
Resolution
accuracy
200mA
100μA
± (1.8% of rdg +20 digits)
10A
10mA
± (3.5% of rdg +25 digits)
10A up to 10 seconds
6-5 Resistance
range
Resolution
accuracy
200
Ω
0.1
Ω
±
(1.5% of rdg + 25 digits)
2kΩ
1Ω
±(0.8%
of rdg
+20
digits
)
20kΩ
10Ω
±(0.8%
of rdg
+20
digits
)
2MΩ
1kΩ
±(2.0%
of rdg
+25
digits
)
-- over-load protection: 250V effective value
6-6
Transistor hFE Test
range
Test Range
Test Current / voltage
NPN & PNP
0-1000
Ib=10
μ
A / Vce=3V
6-7 Diode Test
range
resolution
Function
1mV
Display: read approximate forward voltage of diode
-- over-load Protection: 250V effective value
-- forward DC current: approximate 1mA
-- Reversed DC voltage: approximate 3.0V
6-8 Continuity
range
Function
Built-in buzzer will sound if resistance is lover than 50
Ω
-- over-load protection: 250V effective value
open circuit voltage: approximate 3.0V
6-9
Capacitor
range
resolution
accuracy
20
μ
F
0.01
μ
F-10
μ
F
0.01
μ
F
±
(2.5% of rdg + 30 digits)
10
μ
F-20
μ
F
0.01
μ
F
±
(9.0% of rdg + 40 digits)
-- over-load protection: 250V effective value
