CAT IV 600 V - Multimeter Laserliner - Free user manual and instructions

Product type	Digital multimeter CAT IV 600 V
Brand	Laserliner
Model	CAT IV 600 V
Overvoltage categories	CAT III 1000 V / CAT IV 600 V
Display	LCD 4000 counts (3,999 max)
DC voltage	400.0 mV / 4.000 V / 40.00 V / 400.0 V / 600 V
AC voltage	400.0 mV / 4.000 V / 40.00 V / 400.0 V / 600 V
DC current	10 A (max 30 s every 15 min)
AC current	10 A (max 30 s every 15 min)
Resistance	400.0 Ω / 4.000 kΩ / 40.00 kΩ / 400.0 kΩ / 4.000 MΩ / 40.00 MΩ
Capacitance	40.00 nF / 400.0 nF / 4.000 μF / 40.00 μF / 100.0 μF
Frequency	9.999 Hz / 99.99 Hz / 999.9 Hz / 9.999 kHz / 99.99 kHz / 999.9 kHz / 9.999 MHz
Duty cycle	0.1 % to 99.9 %
Diode test	Yes, test current ~0.3 mA
Continuity test	Yes, threshold < 150 Ω, tone signal
Non-contact voltage detector	Built-in, 100 V – 600 V AC, vibrating alarm and LED
Special functions	Hold, Relative (REL), manual range selection (RANGE), LCD backlight
Power supply	1 x 9 V battery (NEDA 1604 / IEC 6F22)
Auto power off	Yes, after 15 minutes
Fuse	10 A / 600 V fast-acting (6.35 x 31.8 mm)
Protection class	II (double insulation)
Standards	EN 61326, EN 61010-1, EN 61010-2-031
Operating temperature	0 °C to 55 °C
Max. relative humidity	80 % (non-condensing)
Dimensions (L x W x H)	150 x 70 x 48 mm
Weight	255 g
Included accessories	Test leads, battery, manual
Maintenance	Clean with a dry cloth; no solvents
Repairability	Replaceable fuse; annual calibration recommended

Frequently Asked Questions - CAT IV 600 V Laserliner

How to measure DC voltage?

Turn the rotary switch to the V position. Press MODE to select DC (display shows 'DC'). Connect the black probe to the COM socket and the red probe to VΩHz. Touch the test points with the probes. Read the voltage on the display; if polarity is reversed, a '-' sign appears.

How to measure current up to 10 A?

Set the switch to 10A. Press MODE to select AC or DC. Connect the black probe to COM and the red probe to the 10A socket. Turn off the circuit power, insert the multimeter in series, then restore power. Do not exceed 10 A for more than 30 seconds.

How to test continuity of a wire?

Set the switch to Ω. Press MODE twice until the continuity symbol (sound waves) appears. Connect the probes to COM and VΩHz. Touch both ends of the wire. If the resistance is below 150 Ω, a beep sounds.

What does 'O.L' on the display mean?

O.L (Open Line / Overflow) indicates that the measurement circuit is open or the measured value exceeds the selected range. Check your connections or switch to a higher range.

How to use the non-contact voltage detector?

Set the switch to V. Bring the sensor (located on top of the device) within 5-10 mm of a suspected live AC conductor (100-600 V). If voltage is present, the LED lights up and the device vibrates. Caution: This detector does not replace a bipolar verification.

How to replace the battery?

Disconnect all test leads. Remove the battery compartment cover (screw at the back). Replace the used 9V battery with a new one (type NEDA 1604 or 6F22). Close and tighten the screw. Do not dispose of the battery with household waste.

How to replace the fuse?

Remove the test leads and the battery. Unscrew the back case. Locate the fuse (10 A / 600 V fast-acting, dimensions 6.35 x 31.8 mm). Replace it with an identical fuse. Carefully close the case.

The device turns off by itself, is that normal?

Yes, the auto power off is activated after 15 minutes of inactivity to save battery. To reactivate, simply turn the switch to another position or press a button.

How to measure resistance?

Set the switch to Ω. Connect the probes to COM and VΩHz. Make sure the circuit is de-energized and capacitors are discharged. Touch the resistor with the probes. Read the value. If 'O.L' is displayed, the resistance is too high or the circuit is open.

What safety precautions should be observed?

Never work alone on circuits > 25 V AC or 60 V DC. Only handle test leads by the grips. Before any measurement, check the condition of the leads. Do not use the device in humid environments or with conductive contaminants. Disconnect power before measuring resistance, capacitance, or continuity. Observe overvoltage categories (CAT III 1000 V, CAT IV 600 V).

USER MANUAL CAT IV 600 V Laserliner

Diagram of a mechanical component with rotational arrows indicating motion (no text or symbols)

Diagram of a battery connected to a component with an arrow indicating direction (no text or symbols present)

1 x 9V NEDA 1604 / IEC 6F22

Diagram of a handheld electronic device showing internal components and a separate terminal with probe tubes (no text or symbols)

Cross-sectional view of a mechanical or electronic component with two vertical slots and a central shaft (no visible text or symbols)

8 Diodenprüfung

Simple diagram of a cylindrical object connected to two vertical rods with a plus sign, no text or symbols present.

Diagram of a mechanical component with two rotating arrows indicating rotation (no text or symbols)

Top-down diagram of a car interior showing battery and battery casing with arrows indicating components (no text or symbols)

10A/600V Flink

18 Kalibrierung

Read the operating instructions and the enclosed brochure „Guarantee and additional notices“ completely. Follow the instructions they contain. Safely keep these documents for future reference.

Function/Application

Multimeter for taking measurements in the range of the overvoltage category CAT III up to max. 1000 V/CAT IV up to max 600 V. The meter can be used to measure DC and AC voltages, direct and alternating currents, resistances, capacitances, frequencies and duty factors within the specified ranges; it can also be used for continuity and diode testing. In addition, the meter is fitted with a non-contact voltage detector and a vibration alarm.

Symbols

Hazardous electrical voltage warning:

Unprotected live components inside the device housing may pose a risk of electric shock.

Danger area warning

Protection class II: The test device has reinforced or double insulation.

CAT III

Overvoltage category III: Equipment in fixed installations and for applications where specific requirements with regard to the reliability and availability of equipment have to be met, e.g. circuit-breakers in fixed installations and devices used in industrial applications which are permanently connected to the fixed installation.

CAT IV

Overvoltage category IV: Devices such as electricity meters, overcurrent circuit breakers and ripple-control units, which are intended for use at or near the infeed into the electrical installation of buildings, and specifically from the main distribution to the supply system.

Safety instructions

- Make sure that you always select the correct connections, the correct rotary switch position and the correct range for the measurement to be taken.

- Before measuring or checking the resistance, continuity, diodes or capacitance, disconnect the power supply to the electric circuit. Check that all high-voltage capacitors are discharged.

- Isolate the device from all current sources before opening the battery compartment cover.

- If possible, do not work alone.

- If you have to take hold of the measuring spikes, do so by the grip sections only. Do not touch the measuring contacts whilst the measurement is being taken.

- If the device comes into contact with moisture or other conductive residue, work must not be carried out under voltage. At and above voltages of 25 V AC/60 V DC, the presence of moisture creates the risk of life-threatening electric shocks. Clean and dry the device before use. When using the device outdoors, make sure that the weather conditions are appropriate and/or that suitable protection measures are taken.

- If you are working with voltages higher than 25 V AC/60 V DC, exercise extreme caution. Touching the electrical conductors at such voltages poses a risk of life-threatening electric shocks.

- Do not use the device in environments in which there are conductive particles or where the occurrence of moisture (in the form of condensation, for example) can create transient conductivity.

- The device must only be used in accordance with its intended purpose and within the scope of the specifications.

- If you are taking measurements in the hazardous vicinity of electrical installations, do not work alone and seek guidance from an electrically skilled person before starting work.

- Before taking any measurements, make sure that both the area to be tested (e.g. a line), the test device and the accessories used (e.g. connection cable) are in proper working order. Test the device by connecting it to known voltage sources (e.g. a 230 V socket in the case of AC testing or a car battery in the case of DC testing). Stop using the device if one or a number of its functions fails.

1 Rotary switch to set the measuring function
2 Red input socket (+)
3 Black COM socket (−)
4 Red 10 A input socket (+)
5 Select range manually
6 Switch over measuring function
7 Indicator (non-contact voltage detector)
8 Sensor (non-contact voltage detector)
9 LCD
10 Holder for test prods
11 Relative function
12 Hold current measured value, LCD illumination
13 Test prods
14 Measuring contacts

A Measured value display (4 segments, 4000 digits)
B Low battery charge
C Negative measured values
D Direct (DC) or alternating (AC) variables
E Automatic range selection
F Current measured value is held
G Relative function
H Diode test

I Continuity test

J Measurement units: mV, V, μA, mA, Ohm, kOhm, MOhm, nF, μF, Hz, kHz, MHz, %

Display: O.L: open line/overfl ow: measuring circuit not closed or measuring range exceeded

Maximum input power

Function Maximum input
V DC/V AC 1000 V DC, 1000 V AC
A DC/AC 10 A DC/AC (max. 30 seconds every 15 minutes)
Frequency, resistance, capacitance, duty factor, diode test, continuity test	1000 V DC/AC

AUTO OFF function

In order to preserve the batteries, the meter switches off automatically if it is left idle for 15 minutes.

Insertion of batteries

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Diagram of a device interior with a battery and cable connector (no text or symbols)

1 x 9V NEDA 1604 / IEC 6F22

Attaching the test prods

In order to avoid the risk of injury, the test prods must always be kept in the holder on the rear of the meter when not in use and during transport.

Diagram of a handheld electronic device with two probes and a close-up view of its internal components (no text or symbols)

Cross-sectional diagram of a mechanical or electrical component with two vertical connectors and a central shaft (no text or symbols visible)

3 Connection of test prods

The black test prod (−) must always be connected to the „COM socket“. When taking current measurements, the red test prod (+) must be connected to the „10 A socket“. For all other measuring functions, the red test prod must be connected to the „VΩHZ socket“.

Please ensure that the test prods are connected correctly before each measurement. Taking a voltage measurement with 10 A current connections plugged in can cause the installed fuse to trip and result in damage to the measuring circuit.

10A Current measurement DC/AC

To take a current measurement, turn the rotary switch to position „10 A“ and press the „Mode“ button to set the voltage mode (AC, DC). Disconnect the circuit before connecting the meter. Then connect the measuring contacts to the object to be tested. The measured value acquired and the polarity appear on the display. Disconnect the circuit again before disconnecting the meter.

Do not measure currents above 10 A for longer than 30 seconds. This could damage the device or the test prods.

5 V Voltage measurement DC/AC

To take a voltage measurement, turn the rotary switch to position „V“ and press the „Mode“ button to set the voltage mode (AC, DC). Then connect the measuring contacts to the object to be tested. The measured value acquired and the polarity appear on the display.

6 Ω Resistance measurement

To measure the resistance, turn the rotary switch to position „Ω“. Then connect the measuring contacts to the object to be tested. The measured value acquired appears on the display. If „O.L.“ appears on the display instead of a measured value, either the measuring range has been exceeded or the measuring circuit is not closed or has been interrupted. Resistances can only be measured correctly in isolation; therefore, the components might need to be disconnected from the remainder of the circuit.

When measuring resistance, to avoid the risk of the results of a measurement being distorted, there must be no traces of dirt, oil, solder spray or other contamination on the test prods.

7 Continuity test

To test continuity, turn the rotary switch to position „Ω“ and press the „Mode“ switch twice to activate the „Continuity test“ function. Then connect the measuring contacts to the object to be tested. A measured value of < 150 ohms is recognised as continuity; this is confirmed by an audible signal. If „O.L.“ appears on the display instead of a measured value, either the measuring range has been exceeded or the measuring circuit is not closed or has been interrupted.

8 Diode test

To test the diode, turn the rotary switch to position „Ω“ and press the „Mode“ button once to activate the „Diode test“ function. Then connect the measuring contacts to the diode. The measured value acquired for the forward voltage appears on the display. If „O.L.“ appears on the display instead of a measured value, the diode has either been tested in the reverse direction or is faulty. If 0.0 V is measured, the diode is faulty or a short-circuit has occurred.

Black

Reverse direction Forward direction

9 CAP Capacitance measurement

To take a capacitance measurement, turn the rotary switch to position „CAP“ and press the „Mode“ button three times to activate the „Capacitance measurement“ function. Then connect the measuring contacts to the object to be tested. In the case of poled capacitors, connect the positive pole to the red test prod.

Simple diagram of a cylindrical object with two connected rods, one labeled with a plus sign (no text or symbols on the object itself)

10 Hz % Frequency and duty factor measurements

To take a frequency measurement, turn the rotary switch to position „Hz“. Then connect the measuring contacts to the object to be tested. Press the „Mode“ button to switch from Hz to % (duty factor).

11 Auto range/Manual range

The „Auto range“ function is activated automatically when the meter is switched on. Auto range searches for the best possible range for each measurement in the corresponding measuring functions. Press the „Range“ button to activate manual range selection, then press the „RANGE“ button several times until you reach the desired range. Pay attention to changes in decimal places or units. To return to the „Auto range“ range, press the „RANGE“ button and hold it down for 2 seconds. „AUTO“ reappears on the display. The „Range“ function can only be used for voltage, current and resistance measurements.

12 Comparative measurement

The comparative measurement function takes a measurement relative to a reference value that has been saved previously. This enables the difference between the current measured value and the saved reference value to be displayed. Press the „REL“ button whilst a reference measurement is being taken in the corresponding measuring function. The display now shows the difference between the current measurement and the set reference value. Press the „REL“ button again to deactivate the function. The „Rel“ function can only be used for voltage, current and capacitance measurements, as well as continuity tests.

Hold function

The „Hold“ function enables you to keep the current measured value on the display. Press the „HOLD“ button to activate and deactivate the function.

LCD-Backlight

graph LR
    A["ON"] --> B["2 sec"]
    B --> C["HOLD"]
    D["OFF"] --> E["2 sec"]
    E --> F["HOLD"]

15 Voltage detection, non-contact (AC warning)

The non-contact voltage detector integrated in the meter is able to detect AC voltages from 100 V to 600 V, thus enabling live cables or cable breaks, for example, to be identified. Turn the rotary switch to position „V“ and run the voltage sensor along the object to be tested (5 - 10 mm). The display lights up and the device starts to vibrate if AC voltage is detected.

Non-contact voltage detection is no substitute for conventional voltage testing. As the device detects an electrical fi eld, it will react even to static charge.

16 Voltage detection, single-pole phase test

For reasons of safety, you must disconnect the black measuring lead from the COM socket on the device to take this measurement. Turn the rotary switch to position „V“. Connect the red test prod to the phase or neutral conductor. The red LED only lights up if the phase conductor is live. When the single-pole phase test is carried out on the outer conductor, the indicator function may be adversely affected under certain conditions (e.g. when insulating personnel protective equipment is used or at insulated locations).

The single-pole phase test is not suitable for checking for zero voltage. To do this, you need to carry out a two-pole phase test.

17 Replacing the fuse

To replace the fuse, first disconnect the test prods from their voltage source and then from the device. Remove all screws from the rear of the meter and then remove the battery. Open the housing and replace the fuse with one of the same type and specification (10 A/600 V). Close the housing and carefully screw the meter back together.

Top-down view of a mechanical component with two circular arrows indicating rotation (no text or symbols)

Top-down view of a car interior showing a battery and switch mechanism (no text or symbols)

10 A/600 V quick-acting

18 Calibration

The meter needs to be calibrated and tested on a regular basis to ensure it produces accurate measurement results. We recommend carrying out calibration once a year.

Subject to technical alterations. 06.2010
Technical data

Function Range Accuracy
DC voltage	400.0 mV ± (0.5% rdg ± 2 digits)
	4.000 V40.00 V400.0 V	± (1.2% rdg ± 2 digits)
	600 V ± (1.5% rdg ± 2 digits)
AC voltage	400.0 mV ± (1.5% rdg ± 4 mV)
	4.000 V ± (1.2% rdg ± 2 digits)
	40.00 V400.0 V	± (1.5% rdg ± 3 digits)
	600 V ± (2.0% rdg ± 4 digits)
DC current	10 A	± (2.5% rdg ± 5 digits)
AC current 10 A ± (3.0% rdg ± 7 digits)
Resistance	400.0 Ω ± (1.2% rdg ± 4 digits)
	4.000 kΩ ± (1.0% rdg ± 2 digits)
	40.00 kΩ400.0 kΩ4.000 MΩ	± (1.2% rdg ± 2 digits)
	40.00 MΩ ± (2.0% rdg ± 3 digits)
Capacitance	40.000 nF ± (5.0% rdg ± 50 digits)
	400.0 nF	± (3.0% rdg ± 5 digits)4.000 μF
	40.00 μF
	100.0 μF ± (5.0% rdg ± 5 digits)
Frequency	9.999 Hz	± (1.5% rdg ± 5 digits)
	99.99 Hz
	999.9 Hz	± (1.2% rdg ± 3 digits)
	9.999 kHz
	99.99 kHz
	999.9 kHz
	9.999 MHz	± (1.5% rdg ± 4 digits)
Duty factor 0.1%...99.9	% ± (1.2% rdg ± 2 digits)
Diode test 0.3 mA ± (10% rdg ± 5 digits)
Polarity Sign for negative	polarity
LCD 0 ... 3999
Fuse 10 A/600 V quick-acting,240 A2/s (6.35 x 31.8 mm)
Protection class II, double insulation
Overvoltage CAT III - 1000 V, CAT IV - 600 V
Pollution degree 2
Test standards EN 61326, EN 61010-1, EN 61010-2-031
Max. rel. humidity 80%	non-condensing
Operating temperature 0°C to 55°C
Power supply 1 x 9 V battery (NEDA 1604, IEC 6F22)
Dimensions	150 x 70 x 48 mm
Weight 255 g

EU directives and disposal

This device complies with all necessary standards for the free movement of goods within the EU.

This product is an electric device and must be collected separately for disposal according to the European Directive on waste electrical and electronic equipment.

Further safety and supplementary notices at: www.laserliner.com/info

!

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Diagram of a device rear panel with battery and indicator lights, no text or symbols present

1 x 9V NEDA 1604 / IEC 6F22

Diagram of a handheld electronic device with two probes and a close-up view of its internal components (no text or symbols)

Pure mechanical component diagram without any text, numbers, or symbols

10A ≈ Stroommeting DC/AC

5 V Spanningsmeting DC/AC

Simple diagram of a cylindrical object with two connected rods, one labeled with a plus sign (no text or symbols on the object itself)

Diagram of a mechanical component with two ports and a rotation arrow (no text or symbols)

Top-down view of a car interior showing battery and switch components (no text or symbols)

10 A/600 V fl ink

18 Kalibratie

mV, V, μA, mA, ohm, kohm, mohm, nF, μF, Hz, kHz, MHz, %

Display-visning:

O.L: Open line / Overflow:

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Diagram of a battery pack with an attached terminal block and a battery symbol (no text or labels)

1 x 9V NEDA 1604 / IEC 6F22

Diagram of a handheld electronic device with two different probes, one pointing to a component (no text or symbols visible)

Pure mechanical component diagram without any text, numbers, or symbols

Simple diagram of a cylindrical object with two connected rods, one labeled '+', no text or symbols present.

10 Hz % Frekvens-, og duty-cycle-måling

11 Autorange / Manuelt område

Top-down view of a mechanical component with two circular arrows indicating rotation (no text or symbols)

Top-down view of a car interior showing a battery and switch mechanism (no text or symbols)

10A/600V Flink

18 Kalibrering

Diagram of a mechanical component with rotational arrows indicating motion (no text or symbols)

Diagram of a battery internal structure with an upward arrow indicating direction (no text or symbols)

1 x 9V NEDA 1604 / IEC 6F22

Diagram of a handheld electronic device with two different probe tubes and a black arrow indicating a component (no text or symbols present)

Pure mechanical component diagram without any text, numbers, or symbols

Simple diagram of a transistor with two leads and a plus sign, no text or symbols present

11 Autorange / Domaine manuel

12 Mesure comparative

Diagram of a mechanical component with two ports and rotational arrows indicating motion (no text or symbols)

Top-down view of a car interior with a battery and a switch, showing no text or symbols

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Diagram of a device interior with a battery and cable, showing no text or symbols

1 x 9V NEDA 1604 / IEC 6F22

Close-up of a handheld electronic device with two different probes, one showing internal components and the other extending into a slot (no text or symbols visible)

Pure mechanical component diagram without any text, numbers, or symbols

Two stylized test tubes with musical notes inside, no text or symbols present

Simple diagram of a transistor with two leads and a plus sign, no text or symbols present

11 Rango auto/ manual

!

Diagram of a mechanical component with two circular arrows indicating rotation, no text or symbols present

Diagram of a car rear panel with battery and switch, showing internal components and directional arrows (no text or symbols)

10A/600V rápido

18 Calibración

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Diagram of a device interior with a battery and an attached component, showing no text or symbols.

1 x 9V NEDA 1604 / IEC 6F22

Diagram of a handheld electronic device with two connected probes and a close-up view of its internal components (no text or symbols visible)

Pure mechanical component diagram without any text, numbers, or symbols

Simple diagram of a cylindrical object with two connected rods, one labeled with a plus sign (no text or symbols on the object itself)

11 Range automatico/manuale

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Top-down view of a car's rear panel showing battery and switch components (no text or symbols)

10A/600V rapido

18 Calibrazione

Diagram of a mechanical component with two circular arrows indicating rotational motion (no text or symbols)

Diagram of a battery terminal with an attached switch and power supply (no text or symbols)

1 x 9V NEDA 1604 / IEC 6F22

Diagram of a handheld electronic device with two connected probes and a close-up view of the internal components (no text or symbols visible)

Pure diagram of a mechanical or electrical component with no visible text, numbers, or symbols.

Illustration of two microphones with a musical note and signal waves, no text or symbols present

Two stylized test tubes with musical notes, no text or symbols present

Badanie diod

Pure electrical circuit symbol for a diode with two terminals and a plus/minus polarity indicator (no text or labels beyond basic markings)

Simple diagram showing two test tubes connected to a cylindrical component with plus and minus signs (no text or symbols)

Simple diagram of a cylindrical object with two branches, one labeled with a plus sign (no text or symbols on the object itself)