Kusam-meco KM 8045 User manual

®
An ISO 9001:2015 Company
BENCH TYPE DIGITAL MULTIMETER
WITH PC INTERFACE
MODEL KM 8045

CONTENTS
1. GENERAL..................................................................................................................... 1
2. SPECIFICATIONS.........................................................................................................1
3. PANEL DESCRIPTION.................................................................................................7
4. OPERATION................................................................................................................. 8
5. MAINTENANCE...........................................................................................................11
6. TEST CERTIFICATE...................................................................................................12
7. WARRANTY.................................................................................................................13

1. GENERAL
This instrument is a high performance, 4½ digital bench multi-meter for measuring DC and AC voltage, DC & AC
current, Resistance, Capacitance, Hz, hFE, Diodes and Continuity. The max. Voltage measuring can upto 1000V DC
or AC peak value, resolution can be 10 V, and current measuring can upto 20A. It also has the function of polarity m
auto-change, backlight displaying and directly reading. For AC measuring, it is performed by high accuracy TRMS, can
test the bandwidth of the frequency, & the TMS of any waveform can be accurately measured.
2. SPECIFICATION
— 220V / 110V ACPower supply :
— Manual Range
4½ digit large LCD display with backlight (displaying range : max reading : — 75 x 40mm), 19999.
Voltage measurement upto 1000V DC and V AC.— 1000
DC, AC current upto 20A.—
ACV frequency response :— 50kHz.
— Frequency, resistance, capacitance measurement, triode, diode test and continuity test.
Overload protection : — 250V rms.
— 0°C--40°C, <75% R.H.Operation environment :
— 260 X 220 X 82 mmDimension :
— approx. 1kg.Weight :
1. GENERAL SPECIFICATION
... 1 ...

2. TECHNICAL SPECIFICATION
Accuracy = ± (reading % + the lowest effective digit) preheating time : 30min.
Temperature for accuracy (23 ± 5)°C, R.H.<75%, one year warranted from the production date
DC VOLTAGE (DCV)
RANGE ACCURACY RESOLUTION
200 mV
2 V
20 V
200 V
1000 V
± (0.05% rdg + 3dgts)
± (0.1% rdg + 5dgts)
10 mV
100 mV
1 mV
10 mV
100 mV
Input resistance : 10MW for all ranges
Overload protection : 200mV range : 250V DC or AC peak value.
Other range : 1000VDC or AC peak value
... 2 ...
Display : 1) TRUE RMS
2) part range maybe can not return to zero, it’s normal & has no effect on the tested accuracy. This meter has the TRUE
RMS function, and extended the frequency response, can accurately test the RMS of any voltage waveform.
(able to test AC+DC).

... 3 ...
AC VOLTAGE (ACV) TRUE RMS
RANGE ACCURACY RESOLUTION
200 mV
± (0.7% rdg + 30 dgts)
10 mV
Input resistance : 2MW for all range.
Overload protection : 200mV range : 250V DC or AC peak value.
Other range : 1000VDC or AC peak value
INPUT FREQUENCY
40Hz ~ 1kHz
2 V
20 V
200 V
1000 V
1kHz ~ 10kHz
10kHz ~ 20kHz
20kHz ~ 50kHz
± (2% rdg + 30 dgts)
± (3% rdg + 60 dgts)
± (10% rdg + 250 dgts)
100 mV
1 mV
10 mV
100 mV
± (0.5% rdg + 30 dgts)
± (2% rdg + 30 dgts)
± (5% rdg + 60 dgts)
± (0.5% rdg + 30 dgts)
± (2% rdg + 30 dgts)
± (3% rdg + 60 dgts)
± (0.5% rdg + 30 dgts)
± (2% rdg + 30 dgts)
± (0.8% rdg + 10 dgts)
± (1.2% rdg + 80 dgts)
40Hz ~ 1kHz
1kHz ~ 10kHz
10kHz ~ 20kHz
40Hz ~ 1kHz
1kHz ~ 10kHz
10kHz ~ 20kHz
40Hz ~ 1kHz
1kHz ~ 5kHz
40Hz ~ 200Hz
200Hz ~ 400Hz
Display : 1) TRUE RMS (applicable for range 10% or 100%)
2) Part range maybe can not return to zero, it’s normal & has no effect on the tested accuracy.
3) Accuracy will be up ±(1%+150) under AC+DC measuring.

... 4 ...
RESISTANCE (W)
200W
2kW
20kW
200kW
2MW
20MW
RANGE ACCURACY RESOLUTION
± (0.4% rdg + 5 dgts)
± (0.1% rdg + 5 dgts)
0.01W
0.1W
1W
10W
100W
1kW
Open Voltage : less than 3V Overload protection : 250V DC or AC peak value.
± (0.1% rdg + 20 dgts)
FREQUENCY (FREQ.)
hFE MEASURING
20kHz
200kHz
hFE NPN OR PNP
RANGE
RANGE
ACCURACY
DISPLAYING
RESOLUTION
TEST CONDITION
1Hz
10Hz
Basic current is approx. 10mA, Vce is approx. 3V
Input Sensitivity : 500mV rms Overload protection : 250V DC or AC peak value (within 15s)
± (1.0% rdg + 20 dgts)
0 ~ 1000.0
AC CURRENT (ACA) TRUE RMS
RANGE ACCURACY RESOLUTION
200mA
2A
20A
± (0.8% rdg + 80 dgts)
± (1.0% rdg + 50 dgts)
10mA
100mA
1mA
Max. Input voltage drop : 200mV Max. Input current : 20A (within 15s)
Overload protection : 2A / 250V fused, 13A / 250V fused
INPUT FREQUENCY
50Hz ~400Hz
CAPACITANCE (CAP)
20nF
2mF
200mF
RANGE ACCURACY RESOLUTION
± (3.5% rdg + 20 dgts)
± (5% rdg + 30 dgts)
1pF
100pF
10nF
Measuring frequency : approx. 400Hz Overload protection : 36V DC or AC peak value.
Measuring Voltage : approx. 40mV
DC CURRENT (DCA)
RANGE ACCURACY RESOLUTION
± (0.35% rdg + 10 dgts)
200 mA
20 mA
2 mA
0.01 mA
1 mA
0.1 mA
± (0.8% rdg + 10 dgts)
200 mA
20 A
2 A
10 mA
1 mA
100 mA
Resolution
0.01 mA
0.1 mA
1 mA
10 mA
100 mA
Range
200 mA
2 mA
20 mA
200 mA
2 A
DC CURRENT (DCA)
Accuracy
±(0.35%rdg + 10dgt)
±(0.8%rdg +10dgt)
1 mA
20 A
Max. Input current : 20A (within 15s)
2A / 250V fuse, 20A / 250V fuseOverload Protection :
Load Voltage
1 mV/uA
101 mV/mA
11 mV/mA
275 mV/A
1.5 mV/mA
42 mV/A
LOAD VOLTAGE
1 mV/uA
101 mV/mA
11 mV/mA
275 mV/A
40Hz ~ 400Hz
AC CURRENT (ACA) TRUE RMS
RANGE RANGE ACCURACY RESOLUTION
± (0.8% rdg + 80 dgts)
20 mA
2 A
200 mA
1 mA
100 mA
10 mA
± (1.0% rdg + 50 dgts)
20 A 1 mA
Max. Input current : 20A (within 15s)
2A / 250V fuse, 20A / 250V fuseOverload Protection :
LOAD VOLTAGE
11 mV/A
1.5 mV/A
275 mV/A
42 mV/A
1.5 mV/mA
42 mV/A

RESISTNCE (Ω)
RANGE ACCURACY RESOLUTION
± (0.15% rdg + 5 dgts)
± (0.15% rdg + 20 dgts)
200 Ω
20 kΩ
2 kΩ
0.01 Ω
1 Ω
0.1 Ω
± (0.5% rdg + 5 dgts)
200 kΩ
2 MΩ
20 MΩ
10 Ω
100 Ω
1 kΩ
SHORT-CIRCUIT CURRENT
About 260uA
About 50uA About 1V
About 5uA
About 0.5uA
About 0.05uA
OPEN-CIRCUIT VOLTAGE
Overload protection : 250V DC or AC peak value. Measuring error is not including lead resistance
Resolution
1 pF
1 nF
10 pF
10 nF
100 pF
100 nF
1 mF
Range
0nF ~ 10nF
1mF ~ 10mF
10nF ~ 100nF
10mF ~ 100mF
100nF ~ 1mF
100mF ~ 1mF
1mF ~ 2mF
CAPACITANCE (CAP)
Accuracy
±(3.5%rdg + 20dgts)
±(5%rdg + 30dgts)
Measuring Range of Accuracy :10%~100%; Large
Capacitance response time ≥1mF about 8s;
Measured error is not including lead distributed capacitance
... 5 ...

Resolution
0.01Hz ~ 0.1kHz
0.1kHz ~ 0.001MHz
0.001MHz ~ 0.01MHz
Range
20Hz ~ 200kHz
200kHz ~ 2MHz
2MHz ~ 20MHz
FREQUENCY
Accuracy
±(0.1%rdg + 3dgts)
Input Sensitivity : 1.5V RMS ≤10V RMS, the reading value is zero for the signal
below 3Hz
Overload Protection : 250V DC or AC peak value (within 15s)
Range
hFE NPN or PNP
hFE MEASURING
0 ~ 1000.0
Displaying Test Condition
Basic current is approx. 10mA,
Vce is approx. 3V
DIODE AND CONTINUITY TEST
RANGE DISCRIPTION TEST CONDITION
The measuring value is the approx. Value for forward
voltage drop, when the resistance under tested is less than
0 ± 20 , buzzer sounds and display the approx. Value.5 W W
The open voltage is approx. 3V.
Forward DCA is approx. 1mA,
backward DCV is less than 3V
Overload protection : 250V DC and AC peak value.
... 6 ...

SEE THE FIG.
1. MODEL Display
2. LCD display
3. Holder
4. Backlight button
13. (2~20)A input terminal
14. 110V / 220V switch
15. Power switch
16. Power socket
17. Fuse
18. USB interface
3. PANEL DESCRIPTION
... 7 ...
7. AC+DC selection button
10. COM input terminal
11. V / W / Hz / Cx input terminal
12. (0~2) A input terminal
5. Hold button
6. Relative value button
8. Communication button
9. Rang Knob
4
3
2
1
5 6 7 8 9
13
12
11
10
14 15 16 17 18

... 8 ...
NOTE :
1. If the voltage under measured is unknown start from the highest range ., then the proper range
2. If only MSD display “ ”, it means overrange, should set to a higher range.OL
3. Do not input a voltage over 1000V, or, the circuit might be damaged.
4. Be careful when measuring high voltage circuit.
4.2 ACV
1. Connect the red test lead to V terminal and the black one to “COM” terminal.ΩHz
2. Set the knob to ACV range, connect the test leads across to the circuit under measured.
NOTE :
1. See DCV measuring NOTE 1,2,4.
2. Do not input a voltage over 1000V rms, in this case, reading is workable but the circuit might be damaged.
3. To get more accuracy, it’s better that the more than 10% of full range when selecting the range.
4. The meter might be not zero at ACV range, it’s normal and has no effect on the reading.
4.3 DCA:
1. Connect the Black test lead to “COM” terminal and the red one to “mA” terminal (max.2A) or “20A” terminal.
2. Set the knob to DCA range, connect the test leads across to the circuit under measured, the polarity will be
displayed with the voltage reading value.
4. OPERATION
4.1 DCV
The meter is driven by 220V / 110V AC, when operating, connect the power to power plug firstly then socket
Each meter is equipped with one pair of testleads as standard attachment, to insert the turn on the power.
proper jack in front panel is banana plug, connect the pointed end of the testlead to the circuit under test.
The input terminal in front panel can make measurement upto 1000V, 20A and 20M .W
Note : before connecting the circuit under measured, be sure that the measured value should not be over the
limit specified in front panel.
1. Connect the black test lead to “COM” terminal and the red one to “V W Hz” terminal.
2. Set the knob to DCV range, connect the test leads across to the circuit under measured, the polarity will be displayed
with the voltage reading value.

... 9 ...
4.4 ACA :
1. Connect the black test lead to “COM” terminal and the red one to “mA” terminal (max.2A) or “20A” terminal.
2. Set the knob to ACA range, connect the test leads across to the circuit under measured, the polarity will be displayed
with the voltage reading value.
3. The meter might be not zero at ACA range, it’s normal and has no effect on the reading.
NOTE :
1. See DCA measuring NOTE 1 ~ 4
2. To get more accuracy, when selecting range, it’s better to select the range which the reading is more than 10% of full range.
4.5 RESISTANCE MEASURING
1. Connect the red test lead to V terminal, the black one to “COM” terminal.“ WHz”
2. Set the knob to range, connect the test leads across to the resistance under measured.W
NOTE :
1. If the resistance is larger than the max. Value of selected range, “ ” displays. Set the knob to a higher range.OL
When the resistance is 1M or larger than 1M , it will take a few seconds to be stable, it’s normal in high resistance W W
measuring.
2. When the input terminal is n open circuit, OL displays.u der
3. When measuring resistance in-line, be sure that power of the circuit under measured is turned off and all capacitors
are released completely.
4. pen voltage is V .Low range for o about 1 ; the high range is 2V
4.6 DIODE AND CONTINUITY TEST
1. Connect the red test lead to V terminal, the black one to “COM” terminal (note: the polarity of the red lead is +).“ WHz”
2. Set the knob to diode range, connect the test leads across to the diode or circuit under measured.
3. When measuring diode, the reading is forward voltage drop, if making continuity test, buzzer sounds
when the resistance between the test leads is less than approx. 50W ± 20W.

NOTE :
1. When input terminals is in open circuit, overload displays “ ”.OL
2. There is 1mA current flows through the diode under test.
3. The meter displays the forward voltage drop in mili-volts and overload when the diode is reversed.
4.7 FREQUENCY MEASURING
1. Connect the test leads or shielded cable to “VWHz” and COM terminal.
2. Set the knob to frequency range, connect test leads or cable across to the signal source or load
under tested.
NOTE :
1. Do not input voltage over 2 0Vrms, when input is over 10Vrms, reading is workable but the 5
accuracy might be overrange.
2. In noisy environment, it is preferable to use shielded cable for measuring small signal.
3. Be careful when measuring high voltage circuit.
4.8 CAPACITANCE MEASURING
1. Connect the test leads or shielded cable to “VWHz” and COM terminal.
2. Set the knob to capacitance range, connect the test leads across to the resistance under test
3. If zero is not displayed in the LCD, Just press “REL” key.
... ...10
NOTE :
1. If the current under measure is unknown beforehand, start from the highest range and work down.
2. If only the MSD displays “ ”, it means overrange, should set to a higher range.OL
3. The max. Input current is 2A for “mA” and 20A for “20A”, large current will blow the fuse. Be careful when
measuring 20A range, large current will make the circuit heat, even make the circuit damaged.
4. Max. measuring voltage drop is 200mV.

1. set the knob to hFE range.
2. Verifying the type of triode is NPN type or PNP type, insert emitter, base electrode and collector to proper jack.
5. MAINTENANCE
It is a accurate meter, do not change the circuit.
1. Before replacing any parts of the meter, remove the input signal and AC power line, and replace
fuse according to the following :
1. Power fuse : slow-blow 200mA / 250V
2. Fuse for measuring current : fast-blow 2A / 250V and 20A / 250V.
These two fuses are in the main circuit, must be replaced by qualified personal.
2. NOTE :
1. Be careful of waterproof, dustproof and anti-falling.
2. Do not store or operate the meter in high temperature or strong magnetic place.
3. Do not use the abrasives or solvents like alcohol to clean the meter.
... 11...
4.9 TRIODE hFE MEASURING
6.ACCESSORIES :
Test Leads, USB cable, Software CD, Operating Manual, Adapter, Power cord.
NOTE :
1. Do not input voltage or current signal at Capacitance range.
2. Release the capacitor completely to avoid damaging the meter.
3. It should take a few time to be stable when input at 200mF range.
4. The meter may not return to zero at capacitance range, it’s normal and has no effect on the accuracy.

ISO 9001
REGISTERED
MUMBAI
TEST CERTIFICATE
This Test Certificate warranties that the product has been inspected and tested in accordance
with the published specifications.
The instrument has been calibrated by using equipment which has already been calibrated to
standards traceable to national standards.
MODEL NO. KM 8045
SERIAL NO. ___________
DATE: ___________
... 12 ...
BENCH TYPE DIGITAL MULTIMETER WITH PC INTERFACE

Each “KUSAM-MECO” product is warranted to be free from defects in material and workmanship under normal use & service. The warranty
period is one year (12 months) and begins from the date of despatch of goods. In case any defect occurs in functioning of the instrument, under
proper use, within the warranty period, the same will be rectified by us free of charges, provided the to and fro freight charges are borne by you.
This warranty extends only to the original buyer or end-user customer of a “KUSAM-MECO” authorized dealer.
WARRANTY
... 13 ...
This warranty does not apply for damaged Ic’s, fuses, disposable batteries, carrying case, test leads, or to any product which in “KUSAM-
MECO’s” opinion, has been misused, altered, neglected, contaminated or damaged by accident or abnormal conditions of operation or
handling.
“KUSAM-MECO” authorized dealer shall extend this warranty on new and unused products to end-user customers only but have no authority to
extend a greater or different warranty on behalf of “KUSAM-MECO”.
“KUSAM-MECO’s” warranty obligation is limited, at option, free of charge repair, or replacement of a defective product which is returned to a
“KUSAM-MECO” authorized service center within the warranty period.
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
“KUSAM-MECO” SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE WHATSOEVER.
All transaction are subject to Mumbai Jurisdiction.

®
G 17,Bharat Industrial Estate, T. J. Road,
Sewree (W), Mumbai - 400015. INDIA.
Sales Direct : [phone], 27754546
Tel. : [phone]
Email : [email protected]
Website : www.kusamelectrical.com