Beha-amprobe AM-555-EUR User Manual

AM-555-EUR

Digital Multimeter

User Manual

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AM-555-EUR

Digital Multimeter

User Manual

English

6/2015, 6005742 A

©2015 Amprobe Test Tools.

All rights reserved. Printed in China.

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material and workmanship for one year from the date of purchase unless local laws require otherwise. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration,

contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on the behalf of Amprobe. To obtain service during the warranty period, return the product with proof of purchase to an authorized Amprobe Service Center or to an Amprobe dealer or distributor. See Repair Section for details. THIS WARRANTY IS YOUR ONLY REMEDY. ALL OTHER WARRANTIES - WHETHER EXPRESS, IMPLIED OR STATUTORY - INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, ARE HEREBY DISCLAIMED. MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of liability may not apply to you.

Repair

All Amprobe returned for warranty or non-warranty repair or for calibration should be accompanied by the following: your name, company’s name, address, telephone number, and proof of purchase. Additionally, please include a brief description of the problem or the service requested and include the test leads with the meter. Non-warranty repair or replacement charges should be remitted in the form of a check, a money order, credit card with expiration date, or a purchase order made payable to Amprobe.

In-warranty Repairs and Replacement – All Countries

Please read the warranty statement and check your battery before requesting repair. During the warranty period, any defective test tool can be returned to your Amprobe distributor for an exchange for the same or like product. Please check the “Where to Buy” section on www.Amprobe.com for a list of distributors near you. Additionally, in the United States and Canada, in-warranty repair and replacement units can also be sent to an Amprobe Service Center (see address below).

Non-warranty Repairs and Replacement – United States and Canada

Non-warranty repairs in the United States and Canada should be sent to an Amprobe Service Center. Call Amprobe or inquire at your point of purchase for current repair and replacement rates.

USA:	Canada:
Amprobe	Amprobe
Everett, WA 98203	Mississauga, ON L4Z 1X9
Tel: 877-AMPROBE (267-7623)	Tel: [phone]

Non-warranty Repairs and Replacement – Europe

European non-warranty units can be replaced by your Amprobe distributor for a nominal charge. Please check the “Where to Buy” section on www.Beha-Amprobe.com for a list of distributors near you.

Amprobe Europe* Beha-Amprobe

In den Engematten 14 79286 Glottertal, Germany Tel.: [phone] - 0 www.Beha-Amprobe.com

*(Correspondence only – no repair or replacement available from this address. European customers please contact your distributor.)

AM-555-EUR Digital Multimeter

1

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6	3
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10
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9 8

1Flash light

2LC Display

3Push buttons (See making measurement for button functions)

4Low-impedance button

5Rotary switch

6SELECT button

7Input terminal for voltage, diode, capacitance, resistance, continuity and temperature measurement

8COM (return) terminal for all measurements

9Input terminal for AC/DC mA/uA measurement

10 Input terminal for AC/DC A measurement up to 20A

Screen Display
26	2	4	5	11	10	19 20	21
25
24							17
27
							16
3
							13 12
7
18							14 15
6							9
28
	23			1		22	8

1Autoor Manualrange

2Direct current

3Negative reading

4Alternate current

5True-rms value

6Low battery indicator

7Data hold

8Diode test

9Continuity test

10Relative zero mode

11Non-contact Voltage detection mode

12Measurement units for Resistance

13Measurement units for Frequency

14Measurement units for Voltage

15Measurement units for Current

16Measurement units for Capacitance

17Duty cycle

18Auto power off

19Maximum / minimum reading memory

20Positive / negative peak reading memory

21Measurement unit for temperature

22Low-pass filter

23400KΩ low-impedance test

24Temperature measurement T1 or T2

25Temperature measurement T1 - T2

26Warning for error input terminals connection for test leads

27Hazardous Voltage presence

28Analog bar graph display

AM-555-EUR Digital Multimeter

CONTENTS
SYMBOL..................................................................................................................	2
SAFETY INFORMATION..........................................................................................	2
UNPACKING AND INSPECTION..............................................................................	3
FEATURES...............................................................................................................	4
MAKING MEASUREMENT......................................................................................	5
Rotary Switch Positions ....................................................................................	5
Function Buttons ..............................................................................................	6
Measuring AC and DC Voltage ........................................................................	8
Low Pass Filter....................................................................................................	9
Measuring Frequency / Duty Cycle...................................................................	10
Measuring AC and DC Current ........................................................................	12
Measuring Resistance........................................................................................	13
Measuring Continuity .......................................................................................	14
Measuring Capacitance.....................................................................................	15
Measuring Diode...............................................................................................	16
Measuring Temperature °C / °F.........................................................................	16
Non-Contact Voltage Detection.......................................................................	17
SPECIFICATIONS ....................................................................................................	19
MAINTENANCE.......................................................................................................	24
BATTERY AND FUSE REPLACEMENT.....................................................................	25

1

SYMBOLS

XCaution! Risk of electric shock.

Caution! Refer to the explanation in this manual

BAlternating Current (AC)

FDirect Current (DC)

TTheinsulationequipment is protected by double insulation or reinforced

JEarth ground

Audible tone

Battery

Complies with European directives

Conforms to relevant Australian standards

) Canadian Standards Association (NRTL/C)

=Do not dispose of this product as unsorted municipal waste. Contact a qualified recycler.

SAFETY INFORMATION

The meters comply with:

IEC/EN 61010-1 3rd Edition Pollution Degree 2, Measurement Category IV 600V and Measurement Category III 1000V

IEC/EN 61010-2-030

IEC/EN 61010-031 for test leads EMC IEC/EN 61326-1

Measurement Category IV (CAT IV) is for measurements performed at the source of the low-voltage installation. Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units.

2

Measurement Category III (CAT III) is for measurements performed in the building installation. Examples are measurements on distribution boards, circuitbreakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to the fixed installation.

XWARNING: Read before using

•To avoid possible electrical shock or personal injury, follow these instructions and use the Meter only as specified in this manual.

•Do not use the Meter or test leads if they appear damaged, or if the

Meter is not operating properly. If in doubt, have the Meter serviced.

•Always use the proper function and range for measurements.

•Before rotating the function range selection switch, disconnect test probe from circuit under test.

•Verify the Meter’s operation by measuring on a known voltage source.

•Do not apply more than the rated voltage, as marked on the Meter, between the test probe or between any test probe and earth ground.

•Use the Meter with caution for voltages above 30 V ac rms, 42 V ac peak, or 60 Vdc. These voltages pose electrical shock hazards.

•Disconnect circuit power and discharge all high-voltage capacitors before testing resistance.

•Do not use the Meter around explosive gas or vapor.

•When using the test leads, keep your fingers behind the finger guards.

UNPACKING AND INSPECTION

Your shipping carton should include:

1AM-555-EUR Multimeter

1Pair of test leads

2Temperature probes

1 Temperature adaptor

1 Velcro strap

1 9V (6F22) battery (installed)

1 User manual

1 Carrying case

If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange.

3

FEATURES

The Beha-Amprobe AM-555-EUR is a fully featured multimeter designed for professional electricians who need to maintain service or troubleshoot

advanced electrical systems. True-rms sensing accurately measures voltage on systems affected by harmonics, built-in flashlight allows you to identify wires while working in dark conditions, and non-contact voltage detection allows for quick go-no-go checks without the need for an additional tool. The AM-555-EUR also features dual input temperature measurement, a lowimpedance function to detect stray voltage, and a low pass filter to accurately take measurements on variable frequency drives. Safety rated to CAT IV 600V and CAT III 1000V for use in the most demanding applications.

•Measurements: AC/DC Voltage up to 1000V, ac/dc current, Resistance, Frequency, Capacitance, Temperature, duty cycle.

•Current measurements up to 10 A, 20 A for up to 30 seconds

•Special Functions:

-Low Z - to detect “ghost” voltages

-Low pass filter for variable frequency drives

-Non-contact Voltage detection

-Audible continuity

-Diode test

•Dual reading backlight LC Display with analog bargraph

•Events:

-Data hold

-MAX / MIN memory

-Peak hold (crest)

-Relative zero mode

•Built-in flash light

•Built-in test leads storage and “third hand holder”

•Warning against improper test leads connection

•Auto and manual ranging

•Auto power off

•Low battery warning

•Velcro strap to hang a meter

•Safety: CAT IV 600V, CAT III 1000V

4

MAKING MEASUREMENT

X

1.Use the proper function and range for measurements.

2.To avoid possible electrical shock, personal injury or damages to the Meter, disconnect circuit power and discharge all high-voltage capacitors before testing resistance and diode.

3.Connecting test leads:

•Connect the common (COM) test lead to the circuit before connecting the live lead;

•After measurement, remove live lead before removing the common

(COM) test lead from the circuit

4.Symbol “OL” is displayed on LCD when the measurement is out of range.

Rotary Switch Positions

	Switch Position		Measurement Function
		/	AC voltage measurement / Low-pass filter (1kHz).
			Use SELECT button to select alternate function.
	/ NCV		DC voltage measurement / Non-contact Voltage
			detection.Use SELECT button to select alternate function.
	/	/ %	DC millivolt measurement / Frequency / Duty cycle
			Use SELECT button to select alternate function.
	/	/	Resistance / Capacitance / Continuity measurement.
			Use SELECT button to select alternate function.

GVoltage measurement of diode PN junction (diode test).

	°C °F					Temperature measurement.
						Use SELECT button to select temperature unit °C or °F.
μA		mA				AC or DC current measurement.
10A						Use SELECT button to select alternate function ac or dc

5

Function Buttons

Button

Measurement Function

	SELECT	Press the yellow SELECT button to select alternate
		measurement functions on the rotary switch.
		Manual or auto range switching for voltage current,
		resistance and capacitance. The default setting is Auto
	RANGE /	ranging, press to switch to manual ranging. Press for 2
	AUTO T1-T2	seconds to return to auto-ranging.
		T1 or T2 or T1-T2 function switching for temperature
		measurement.
	REL /	Relative mode / Press >2 seconds to turn ON or turn
		OFF flash light.
		Press to enter Maximum / minimum reading memory
		mode. Press again for naximum reading; press again for
		minimum reading. Press > 2 seconds to exit maximum/
	MAX/MIN /	minimum reading mode.
	PEAK(1ms)	Press > 2 seconds to enter Peak MAX/ Peak MIN mode.
		Press again for Peak MAX reading; press again for Peak
		MIN reading. Press > 2 seconds to exit Peak MAX/ Peak
		MIN reading mode.
	HOLD /	Display freezes present reading / press > 2 seconds to turn
		ON or turn OFF LCD backlight.

For voltage measurement functions only. Press and hold the button to change the input impedance of V and COM

Low imp. 400kΩ terminal to 400kΩ. Release 400kΩ button to return to normal input impedance of V and COM terminal (around 10MΩ).

6

Dual Display

AC Voltage measurement

Primary display shows ac voltage.

Secondary display shows frequency.

AC Current measurement

Primary display shows ac current.

Secondary display shows frequency.

Auto Power OFF

Auto power off: Approximately 15 minutes.

When the meter is in auto power off mode, press any button to resume normal operation.

REL Measurement (V, A, Ω and EMeasurement)

The meter will calculate the values based on the stored value when set to related mode. Display value under REL Mode = Measured Value - Reference Value

Note: Entering relative mode is not allowed when the meter displays “OL”.

Incorrect Input Terminal Connection Warning

To alert you about the incorrect connection of input terminals, the meter will display “Warning” and buzzer will sound when test leads are falsely inserted to terminals which are not for measurement of the selected functions.

Function selected	WARNING – Incorrect Terminal Connection
V, Ω, E , , Hz, %,	10A, mA µA
mA µA °C °F	10A
10A	mA µA

Hazardous Voltage Warning

LCD screen displays when the meter detects a voltage ≥30 Vac or ≥42 V dc.

7

Measuring AC and DC Voltage

XTo avoid personal injury or damage to the meter, do not apply voltage higher than 1000V ac and 1000V dc. Buzzer will sound when detect a voltage higher than 1000V ac and 1000V dc.

Low imp. 400Ω

(For only)

8

Low Pass Filter

X

•To avoid personal injury or damage to the meter, do not use low pass filter function to verify the presence of hazardous voltage in the circuit. Always use Voltage function to verify hazardous voltages.

•Do not apply voltage higher than 1000V.

Measuring AC voltage with Low Pass Filter:

Turn rotary switch to position and press SELECT button for Low Pass Filter mode, symbol is displayed on screen.

Making measurement under ac voltage mode by a low pass filter can block voltage above 1KHz. Low pass filter can be used to measure composite sine wave signal generated by inverter and variable frequency motor drives.

Note: The meter goes into manual mode when Low Pass Filter mode is enabled. Auto-range mode is not available for Low Pass Filter option.

9

Measuring Frequency / Duty Cycle

XTo avoid personal injury or damage to the meter, do not apply voltage higher than 1000V.

1. Frequency / Duty Cycle function

Step 1: Turn the rotary switch to Hz % position. Use SELECT button for Hz or duty cycle measurement.

Step 2: Connect test leads to the circuit. See below for connecting diagram.

(for Frequency only)

2. Measuring Frequency by using ac Voltage function Step 1: Turn the rotary switch to position.

Step 2: Connect test leads to the circuit. Connect the common (COM) test lead to the circuit before connecting the live lead (connecting diagram refer to “Measuring AC Voltage”).

Primary display shows ac Voltage measurement reading. Secondary display shows Frequency measurement reading.

10

3. Measuring Frequency by using ac current function

Step 1: Turn the rotary switch to μA or mA or 10A position.

Step 2: Connect the test leads to the correct input 10A/mA µA current terminal and to the circuit before powering the circuit under test (connecting diagram refer to “Measuring AC Current”).

Primary display shows ac current measurement reading. Secondary display shows Frequency measurement reading.

11

Measuring AC and DC Current

Press SELECT button to select ac or dc current measurement function.

XTo avoid personal injury or damage to the meter:

1.Do not attempt to make an in-circuit current measurement when the open-circuit potential to earth ground exceeding 1000V

2.Switch to proper function and range for your measurement.

3.Do not place the test probe in parallel with a circuit when the test leads are connected to the current terminals.

4.Connect the test leads to the correct input 10A/mA µA current terminal and to the circuit before powering the circuit under test.

5.For current range from 8-10A, do not measure current for more than 20 minutes. Wait for 10 minutes before taking another measurement

6.For current range from >10-20A, do not measure current for more than 30 seconds maximum. Wait for 10 minutes before taking another measurement.

7.After measurement, switch OFF the circuit’s power before removing test leads from the circuit.

12

Measuring Resistance

XDisconnect circuit power and discharge all high-voltage capacitors before testing resistance.

Note: On a higher resistance measurement (>1Me), the measurement may take a few seconds to get stable reading.

Over range or open circuit indication: OL

13

Measuring Continuity

XDisconnect circuit power and discharge all high-voltage capacitors before testing continuity.

Press SELECT button for continuity function.

14

Measuring Capacitance

XDisconnect circuit power and discharge all high-voltage capacitors before measuring capacitance. Use dc Voltage function to check the capacitors are discharged.

Press SELECT button for capacitance measurement function.

15

Measuring Diode

XDisconnect circuit power and discharge all high-voltage capacitors before testing diode.

Note: A typical junction Voltage drops 0.5 V to 0.8 V.

Measuring Temperature °C / °F

X

1.To avoid personal injury or damage to the meter, do not apply the temperature probe to any live conductive parts.

2.Temperature sensor K-type (nickel-chromium/nichrosi) thermocouple is suitable for temperature measurement below 230°C (446°F).

Measurement steps:

Step 1: Turn the rotary switch to °C/°F position. The display will show “OPEN”. Press SELECT button for conversion to °F measurement.

Step 2: Connect the temperature probe (K-type) to the Meter and to the surface to be measured. Two temperature surface points can be measured at the same time by using the provided temperature probes.

Step 3: Press RANGE button to select temperature measurement T2 or T1-T2 (the default temperature measurement is T1).

16

T2

T1

Non-Contact Voltage Detection (NCV Mode)

X

1.To avoid personal injury or damage to the meter, do not test on uninsulated wires.

2.Buzzer will sound and screen will display “OL” when detecting ac Voltage above 90V ac.

3.Do not test on hazardous live wires higher than 750V ac.

4.Before and after hazardous voltage measurements, test the meter by approaching to a known source such as a line ac Voltage or outlet to determine proper operation.

5.At NCV mode, no test lead connections are required for NCV measurement.

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Buzzer will sound when the detected voltage is ≥90V, and the buzzer will be on. The distances between the wire and the meter should be ≤8mm.

X

The voltage indication in NCV mode is not sufficient to assure safety. This function is not suitable to test for absence of voltage.

18

DETAILED SPECIFICATIONS

Ambient temperature: 23°C ±5°C (73.4°F ±9°F); Relative temperature: ≤75% Accuracy: ±(% of reading + digits)

Maximum voltage between input terminal and earth ground:

1000V ac True-rms or 1000V dc.

Fuse for mA µA input: F1 0.5A H 1000V fast-fuse, (Φ6.3×32)mm

Fuse for A input: F2 11A H 1000V fast-fuse, (Φ10×38)mm

Maximum display: Digital 5999 counts, updates 3/seconds. Analog pointer display: 61 segments. Updates 20 times/seconds.

Over-range indication: OL

Range: Automatic and Manual

Altitude: Operating ≤ 2000m

Operating temperature: 0°C~+40°C (32°F~104°F)

Relative humidity: 0°C~+30°C (32°F~86°F) ≤75%; +30°C~+40°C (86°F~104°F) ≤50% Storage temperature: -10°C~+50°C (14°F~122°F)

Electromagnetic compatibility: In an RF filed of 1V/m = Specified accuracy ± 5% Battery: 9V, 6F22, NEDA1604 or equivalent

Low battery indication:

Dimensions (L x W x H): 182 mm x 90 mm x 45 mm (7.2 in x 3.5 in x 1.8 in) Weight: Approximately 354g (0.78 lb) with batteries installed

1. DC Voltage Measurement

Range	Resolution	Best Accuracy
600.0mV	0.1mV	±(0.5%+3 LSD)
6.000V	1mV
60.00V	10mV	±(0.5%+2 LSD)
600.0V	100mV
1000V	1V	±(1.0%+2 LSD)

Input impedance: Around 10MΩ ;

Overload protection: ±1000V

19

2. AC Voltage Measurement

Range	Resolution		Accuracy
		45Hz – 400Hz		400Hz – 1kHz
6.000V	1mV
60.00V	10mV	±(1.0%+3LSD)		±(2%+3 LSD)
600.0V	100mV
1000V	1V	±(1.2%+3LSD)		±(2.5%+3 LSD)

Overload protection: 1000V rms Input impedance: Around 10MΩ Frequency response: 45Hz – 1kHz

Note: Frequency (on secondary display) may not be displayed if the measured voltage is below 20% of the display voltage range.

3. Low Pass Filter

Range	Resolution	Accuracy
6.000V	0.001V
60.00V	0.01V	45 to 200Hz ± (2%+40 LSD)
600.0V	0.1V	200 to 440Hz ± (6%+40 LSD)
1000V	1V

Block ac voltage signals above 1KHz

Overload protection: 1000Vp

4. Frequency Measurement

	Range	Resolution	Accuracy
	60.00Hz	0.01 Hz
	600.0Hz	0.1 Hz
	6.000kHz	1 Hz	±(0.1%+3 LSD)
	60.00kHz	10 Hz
	600.0 kHz	100Hz
	6.000MHz	1KHz	±(0.1%+3 LSD)
	60.00MHz	10KHz

Overload protection: 1000Vp

20

5. Duty Cycle

Range		Resolution	Accuracy
10%~90%		0.01%	±(1.2%+30 LSD)
Overload protection: 1000Vp

6. DC Current Measurement

		Range	Resolution	Accuracy
	μA	600.0μA	0.1μA	±(1.0%+2LSD)
		6000μA	1μA
	mA	60.00mA	10μA	±(1.2%+3 LSD)
		500.0mA	0.1mA
	A	20.00A[1, 2, 3]	10mA	±(1.5%+3 LSD)

	Function	Overload Protection	Overload
	mA /μA	F1 fuse, 0.5A H 1000V fast-fuse,	N/A
		( 6.3×32)mm
		F2 fuse, 11A H 1000V fast-fuse,	20 A overload for 30 seconds
	A		maximum, 10 minutes off
		(10×38)mm
			minimum

[1]8 to 10 A up to 20 minutes, 10 minutes off minimum.

[2]>10 to 20 A overload for 30 seconds maximum, 10 minutes off minimum

[3]>10 to 20 A for 30 seconds accuracy ±(2.0%+3LSD).

7. AC Current Measurement

		Range	Resolution	Accuracy
				45Hz – 400Hz	400Hz – 1KHz
	μA	600.0μA[1, 2]	0.1μA	±(1.2%+5 LSD)	±(2%+5 LSD)
		6000μA[1, 2]	1μA
	mA	60.00mA[1, 2]	10μA	±(1.5%+5 LSD)	±(3%+5 LSD)
		600.0mA[1, 2]	0.1mA
	A	20.00A[1, 2, 3, 4, 5]	10mA	±(2%+5 LSD)	±(4%+5 LSD)

21

	Function	Overload Protection	Overload
	mA /μA	F1 fuse, 0.5A H 1000V fast-fuse,	N/A
		( 6.3×32)mm
		F2 fuse, 11A H 1000V fast-fuse,	20 A overload for 30 seconds
	A		maximum, 10 minutes off
		(10×38)mm
			minimum

[1]Frequency response: 45Hz to 1kHz

[2]Frequency (on secondary display) may not be displayed if the measured current is below 20% of the display current range.

[3]8 to 10 A up to 20 minutes, 10 minutes off minimum.

[4]>10 to 20 A overload for 30 seconds maximum, 10 minutes off minimum

[5]>10 to 20 A for 30 seconds accuracy ±(4%+5LSD).

8. Resistance Measurement

Range	Resolution	Accuracy
600.0Ω	0.1Ω	±(1.2%+2 LSD)
6.000kΩ	1Ω
60.00kΩ	10Ω	±(1.0%+2 LSD)
600.0kΩ	100Ω
6.000MΩ	1kΩ	±(1.2%+2 LSD)
60.00MΩ	10kΩ	±(1.5%+2 LSD)

Open circuit voltage: Around 0.5V

Overload protection: 1000Vp

9.	: Continuity		G :Diode Measurement
Range		Resolution		Accuracy
				Open circuit voltage is around -3V dc.
		0.1Ω		Resistance ≥50Ω, buzzer will not sound.
				Resistance ≤10Ω, buzzer will sound.
	G	1mV		Display range is 0V to 2.8V. Normal voltage is around
				0.5V to 0.8V for silicon PN junction.
Overload protection: 1000Vp

22

10. Capacitance Measurement

Range	Resolution	Accuracy
60.00nF	10pF	Under REL status: ±(3%+5 LSD)
600.0nF	100pF
6.000μF	1nF	±(3%+5 LSD)
60.00μF	10nF
600.0μF	100nF	±(4%+5 LSD)
6000μF	1μF	±(5%+5 LSD)
60mF	10μF	Not specified

Overload protection: 1000Vp

11. Temperature Measurement

Range	Resolution	Accuracy
-40 – 40°C		±(2%+8 LSD)
>40 – 400°C	1°C	±(1%+8 LSD)
>400 – 1000°C		±2.5%
-40 – 104°F		±(2%+12 LSD)
>104 – 752°F	2°F	±(1%+12 LSD)
>752 – 1832°F		±2.5%

Overload protection: 1000Vp

K-type (nickel-chromium/nichrosi) thermocouple must be used for temperature measurements.

23

MAINTENANCE AND REPAIR

If the meter fails to operate, check battery, test leads, all other accessories, and replace as necessary.

Double check the following:

1.Replace the fuse or battery if the meter does not work.

2.Review the operating instructions for possible mistakes in operating procedure.

Quick check on 0.5A FUSE:

Step 1: Turn the rotary switch to mAposition.

Step 2: Use a multimeter with continuity function to verify the fuse continuity for the fuse of mA/µA terminal. Connect the test leads to mA/µA terminal and COM terminal.

Continuity buzzer activates: the fuse is OK

Continuity buzzer is not activated: the fuse is burnt. Replace the fuse as specified. F1 0.5A H 1000V fast-fuse, (6.3×32)mm

Quick check on 10A FUSE:

Step 1: Turn the rotary switch to A position.

Step 2: Use a multimeter with continuity function to verify the fuse continuity for the fuse of 10A terminal. Connect the test leads to 10A terminal and COM terminal.

Continuity buzzer activates: the fuse is OK

Continuity buzzer is not activated: the fuse is burnt. Replace the fuse as specified. F2 11A H 1000V fast-fuse, (10×38)mm

24